C31 Agricultural Drone

User Manual (V1.2)



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Safety Note: Not all information is contained in this manual. This document is intended as a guide. To ensure safe and efficient operation, the safety and service manuals should be reviewed prior to drone usage. These additional documents—including all related manuals—are available on  www.ceresair.com . The Drone should not be operated unless all relevant manuals have been reviewed.



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Safety Instructions

Flight Environment Requirements

All spraying operations must be suspended when wind speeds reach 17.9 mph (8 m/s). Flight operations are strictly prohibited at this wind level or above.
To ensure operational safety and application efficacy, conduct spraying under wind speeds ≤13.4 mph (6 m/s). For herbicides and drift-prone chemicals, maintain winds ≤ 6.7 mph (3 m/s) per EPA drift reduction requirements.
Flight operations are strictly prohibited under adverse weather conditions including: dense fog (visibility <3 statute miles), high winds (≥8 m/s or 17.9 mph sustained), precipitation (rain/snow) affecting sensor performance.
Select open terrain free of tall structures for flight operations. High-rise buildings may obstruct GNSS signals, potentially causing RTK positioning failure and creating significant flight safety hazards.

 GNSS/RTK failure may cause loss of positional awareness, increased drift risk, and increased collision risk.

Maintain continuous unaided visual contact with the aircraft at all times, while keeping safe distances from: static obstacles , populated areas, water surfaces, livestock/wildlife.
Ensure the worksite and adjacent areas are clear of electromagnetic interference (EMI) sources, including high-voltage power lines, communication base stations, and transmission towers.
Flight operations are strictly prohibited above 13,123 ft (4000m) MSL.
Maintain unobstructed GNSS signal reception by ensuring the RTK antenna has fully hemispherical sky visibility.
Prohibited indoor operation of drone systems.
When operating at night, always turn on the spotlight before flight. Nighttime visual obstacle avoidance may not work, so make sure to activate the obstacle avoidance radar and fly with caution.

 Vision/radar performance is degraded at night/obstacle avoidance effectiveness is reduced. Use caution while operating at night.

Maximum Takeoff Weight (MTOW) decreases by 10% per 3,280 ft (1000m) density altitude increase, with payload capacity reduction being a derived consequence of gross weight limitation.
Maximum Takeoff Weight (MTOW) decreases by 10% per 3,280 ft (1000m) density altitude increase, with payload capacity reduction being a derived consequence of gross weight limitation.
When operating above 6,562 ft (2000m) MSL, expect reduced battery and powertrain performance due to environmental factors. Flight characteristics will be adversely affected-exercise extreme caution.
The Applicator View App by Ceres Air dynamically constrains maximum takeoff weight (MTOW) based on real-time environmental factors. Never exceed the chemical payload limit. The aircraft’s integrated load cell system verifies weight pre-launch-overload conditions trigger permanent flight lockout until payload reduction.
Ensure optimal GNSS signal integrity (verified by green status icon) with RTK antenna maintaining full  360° Sky Visibility during operations.
It is prohibited to carry illegal or dangerous payloads (non-chemical).

Pre Flight Checklist

Verify aircraft and remote controller battery levels are ≥80%.
Inspect all components for damage and validate that the airframe is free of cracks, deformation, or damage. Replace deteriorated or defective parts before flight.
Confirm secure attachment of landing gear and spray tank.
Verify propellers are crack-free, no foreign body, and securely mounted with locking nuts.
Confirm blades and arms are fully deployed with positive lock mechanisms engaged.
Verify aircraft motors are clean and undamaged.
Check the landing gear mounting points.
Confirm spray system has unobstructed flow and functions normally.
Ensure all systems operate without warnings or anomalies.
Check the radar for any external damage or contamination, it should be free of foreign objects to function properly.
Calibrate compass immediately when prompted by the Applicator App before flight.

Safety Considerations During Operation

Strictly observe maximum takeoff weight (MTOW) limits, exceeding certified MTOW constitutes reckless operation.
Do not exceed recommended chemical payload mass. Overloading compromises flight stability.
Maintain visual line-of-sight（VLOS) at all times.
Only use stick combinations stopping motors in flight for emergencies, as this will cause crashes.
Do not operate while using mobile devices or under alcohol or drug influence.
Do not operate while fatigued, as this may cause reduced situational awareness or reliance on aircraft automation.
Immediately initiate return-to-home (RTH) on low battery warning.
If radar obstacle avoidance is unavailable due to the environment, AUTO-RTH will not evade obstacles. Manually control speed and altitude via remote controller if the signal is stable.
Power down aircraft before remote controller post-landing to prevent signal loss triggering uncommanded RTH.
Maintain positive control of the aircraft throughout the operation, never rely solely on the Applicator View App by Ceres Air data. In specific flight modes or environments, radar-based obstacle avoidance may be disabled. Ensure optimal visibility, rely on direct visual observation to assess flight conditions, maneuver to avoid obstacles, set appropriate flight and return-to-home altitudes based on environmental factors.
When operating near high-voltage power lines, plan flight paths appropriately to maintain safe clearance. If the aircraft contacts power lines, never attempt physical retrieval - electrocution hazard exists.

Emergency Motor Stop Protocol

Emergency Motor Stop during flight - this will cause immediate uncontrolled descent.
Emergency Motor Stop should only be used when collision with persons is imminent, to minimize injury severity.
Emergency stop procedure: Maintain full outward stick deflection for >0. 5 seconds to trigger irreversible motor cutoff. The aircraft will enter free fall immediately.

Flight restrictions and regulatory compliance

Manned aircrafts always have the right of way, if a no fly zone is entered or manned aircraft are encountered, the drone must be landed immediately.
For detailed flight restrictions and no-fly zone data: Consult local aviation authority to ensure compliance with applicable regulations. Users must obtain required operational authorizations from government agencies when necessary.
All Ceres Air LLC agricultural drones shall maintain flight altitudes at or below 400 ft (122M). Please consult local laws and regulations.
Ceres Air agricultural drones must operate within a maximum radius of 6,560 ft (2000m) or within VLOS from the pilot or controller. For cross-border operations, compliance with host nation aviation regulations is required.

 Warning: Ceres Air LLC drones must not be operated in or near airports/heliports, emergency response areas (fires, disaster areas), border zones, hazard zones, Sensitive infrastructure (power plants, substations, prisons, military sites), dense urban areas, and major public events without explicit approval from local authorities. Ceres Air LLC is not responsible for drones flown in these areas.

 Warning: Ceres Air LLC drones must not be operated near fires/wildfires, floods, explosions, earthquakes, landslides, avalanches, emergency response procedures and dust storms/sandstorms

Geo-fencing

No-Fly Zone

Pursuant to airspace regulations established by ICAO and national aviation authorities worldwide, drones must operate within designated flight zones. To ensure flight safety, Ceres Air LLC agricultural drones will enable flight restriction features by default—including No-Fly Zone (NFZ) and Geo-fencing containment—facilitating safer and legally compliant operations.
Geofencing is a technology that creates a virtual, digital boundary around a specific physical location using GPS, it is not inherently "regulatory compliance" itself. Rather, it is a tool or strategy implemented to help meet compliance, safety, or security obligations.
No-fly zones include both aviation authority restricted areas and operator-defined exclusion zones. Drones are strictly prohibited from entering any designated no-fly zone.
When approaching any no-fly zone boundary, the aircraft will automatically decelerate and initiate hover at the perimeter.
If the aircraft enters a no-fly zone without positioning capability, it will automatically initiate landing upon regaining positioning. Moreover, takeoff capability remains disabled while within restricted airspace.
The Operator must independently verify airspace legality, geofencing does not replace Operator or legal responsibility.

Integrated Pesticide Application System

Pesticides are hazardous chemicals. Strictly follow EPA-approved label instructions and safe handling protocols at all times.
Avoid splashing when mixing chemicals to prevent pesticide residue on the machine from harming you.
When mixing pesticides, use clean water only. After mixing, filter the solution before transferring it to the spray tank to prevent filter clogging. If clogging occurs during application, stop and clean the filter before resuming.
During application, always position yourself upwind to avoid exposure to pesticide drift.
During application, wear proper PPE (personal protective equipment) to avoid direct skin contact with pesticides. After spraying, thoroughly wash all exposed skin and clean the drone and remote controller.
Spray effectiveness depends on critical factors including: solution concentration, flow rate, drone height above crop canopy, wind direction and speed, temperature and humidity. To achieve optimal coverage, all factors must be accounted for during application.
Ensure the pesticide application causes no harm to flora, fauna, or natural habitats within either the target spray area or potential drift zone.
Contamination of rivers, streams, or drinking water sources during pesticide application violates federal environmental laws and is subject to severe penalties.
Disposal of Excess Pesticide Solution: Proper planning should minimize leftover pesticide solution. It is recommended to apply the remaining solution and rinse water to target crops. Avoid over-application if excessive amounts remain.
The use of strongly acidic and alkaline solutions, high-temperature liquids, and pesticides banned by national regulations is strictly prohibited.

Ingress Protection (IP) Rating Specifications

Sealing surfaces deform after impact damage;
Cracks or breaks develop in enclosure seals;
Port covers or sealing grommets are improperly seated or become detached.

Drone Maintenance Instructions

Before each flight, inspect propellers and immediately replace any deformed or damaged blades. Ensure all propellers are securely mounted.
Always empty and detach the liquid tank during transport or storage to prevent landing gear overloading.
Store aircraft in environments between -4°F (-20°C) and 104°F (40°C). Verify tanks, flow meters, pumps, and hoses are completely drained.
Clean aircraft promptly after spraying. Perform routine maintenance per Section 4: 'Product Maintenance' in the C31 Agricultural drone Warranty & Maintenance Manual.

Drone Maintenance & Cleaning Protocol

Tank Flushing: Triple-rinse the liquid tank. Fill with clean water or soap solution. Spray until empty and repeat this process two additional times.
Remove and clean the tank filter, nozzle screens, and spray tips. After confirming there are no blockages, soak these components in clean water for 4 hours.
Rinse airframe with low-pressure water, scrub with soft brush or damp cloth and dry thoroughly with lint-free cloth.
For motors, propellers, and heat sinks. Wipe pesticide residue or dust with damp cloth. Immediately dry with absorbent cloth. Never allow liquid pooling.
Dampen lint-free cloth (wring until no dripping), wipe surfaces and display and Air-dry before storage.

 Warning: foreign debris can cause rotor ingestion risks, the drone and operating area must be free of foreign objects such as plastic bags, fertilizer sacks, loose tarps, and any other objects that may interfere with safe flight.

Intelligent Battery Storage Protocol

Storage & Transportation Safety Protocol

Keep all components away from children – small parts and cables pose choking hazards.
Always remove batteries from the aircraft before transport.
For long-term storage or extended transport: Detach the spray tank assembly or completely drain residual liquid. Store aircraft in climate-controlled environments.
For long-term storage, maintain batteries at approximately 60% state of charge.

Post-Operation Maintenance Protocol

After daily operations, allow aircraft to reach ambient temperature before cleaning. Never clean immediately post-flight.

• Fill with clean water or ≤2% detergent solution. Spray until fully emptied and repeat twice.
• Remove and clean the following: spray tank filter assembly, nozzle screen filters, and spray tips. Verify that all parts are obstruction-free and soak disassembled components in clean water for 12 continuous hours.
• Ensure the body structure is intact—the entire unit can be washed directly with water. It is recommended to rinse the body using a spray hose, then clean it with a soft brush or damp cloth, and finally wipe it dry with a clean, dry cloth.
• If there is dust or chemical residue on the motor, propeller blades, or heat sink surfaces, it is recommended to clean them with a damp cloth and then wipe dry with a clean, dry cloth.
• Keep the aircraft in a dry location.

After each day of operation, wipe the remote controller's surface and screen with a clean, damp cloth (wring out excess water).
After every 20 flight hours or 100 takeoff/landing cycles:

•  Inspect the propellers for cracks. Replace any cracked propellers.
•  Check if the propellers are loose. If looseness is found, replace the propeller and it’s washer.
• Examine plastic and rubber components for signs of aging/deterioration.
• Check the nozzle’s spray pattern. If atomization is poor, thoroughly clean the nozzle or replace it.
• Replace both the nozzle filter and the spray tank filter.

After daily operations: If the equipment will be used again the next day or in the near future, perform slow charging on the batteries overnight for maintenance.
Do not attempt unauthorized repairs on the aircraft. If damage occurs, contact an authorized Ceres Air Dealer for service.

Keep the radar module’s protective cover clean. Gently wipe the surface with a soft, damp cloth and allow it to air-dry.
Maintain FPV camera cleanliness by removing any dust, sand, or debris from the camera surface.
Inspect all aircraft components for signs of severe impact. If any damage is suspected, contact customer support or an authorized Ceres Air Dealer.

Aircraft Body Safety



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Safety Pictograms



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Disclaimer



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Thoroughly review this manual before product use. By activating this product, you are deemed to have acknowledged, understood, accepted, and agreed to all terms and conditions contained herein.
Agricultural drones are large-scale drones carrying operational risks. Ceres Air LLC does not sell drones to minors. Ceres Air LLC shall bear no liability whatsoever for any consequences arising from drone operation by minors. Under such circumstances, both the complimentary first-year Damage Protection Plan and any subsequently renewed coverage shall be immediately void and unenforceable.

 Do not operate in the presence of of minor children. A safety perimeter must be maintained at all times

Users are strictly prohibited from operating the drone under the following conditions: While under the influence of alcohol, drugs, or medication. While experiencing dizziness, fatigue, nausea, or any other physical or mental impairment Ceres Air LLC disclaims all liability for any incidents or damages resulting from such prohibited operation.
When handling toxic pesticides: Thoroughly review the pesticide manufacturer's instructions. Implement all specified personal protective equipment (PPE). Ceres Air LLC shall bear no liability under any circumstances for injuries to persons, animals, or plants resulting from user negligence or improper chemical application.
This product is a multi-rotor agricultural drone designed exclusively for spraying applications within agricultural, forestry, livestock, and aquaculture operations. Any use beyond this specified scope is strictly prohibited. Ceres Air LLC shall bear no direct, indirect, or consequential liability whatsoever for incidents resulting from non-compliant operations.
Unauthorized modification or use of non-Ceres Air components is strictly prohibited. Ceres Air LLC shall bear no direct, indirect, or consequential liability for any incidents, damages, or injuries resulting from such unauthorized alterations or use of third-party parts.
To optimize product functionality and enhance user experience, you expressly acknowledge, understand, and consent that during product operation all flight records and data will be automatically uploaded and stored to Ceres Air LLC’s secure data center by default. Ceres Air LLC may lawfully collect, store, and utilize all related operational data generated during your use of this product. Should flight data fail to upload due to your actions or omissions, Ceres Air LLC shall bear no liability whatsoever for: Any impacts on flight safety, compromised product or service quality, operational consequences arising from unavailable data for storage and analysis.
To the maximum extent permitted by law, Ceres Air LLC shall not be liable for any losses resulting from your failure to operate the product in accordance with the "Operator’s Manual" nor for any indirect, consequential, punitive, incidental, special, or exemplary damages, including but not limited to damages arising from your purchase, use, or inability to use the product.
You acknowledge and agree that during product use, unforeseen incidents may occur due to operational errors, environmental factors, network communication issues, or a combination thereof. These incidents are considered inherent and reasonably foreseeable risks of product operation, and Ceres Air LLC shall not be held liable for any such occurrences.
To the maximum extent permitted by law, in no event shall Ceres Air LLC’s total liability to you for all damages, losses, and causes of action (whether in contract, tort, or otherwise) exceed the amount you actually paid to Ceres Air LLC or its authorized dealers for the product.
Under all circumstances, purchasers or users must comply with applicable laws, regulations, and policies of the country or region where the product is operated. Ceres Air LLC shall bear no liability whatsoever for violations of such legal requirements by purchasers or users.
Certain jurisdictions may legally prohibit disclaimers of liability. Consequently, your rights may vary across different countries. This shall not be construed as automatic invalidation of any provisions herein where legally permissible.
To the maximum extent permitted by law: Ceres Air LLC reserves the sole right to interpret and modify these terms. Ceres Air LLC reserves the right to update, modify, or terminate the terms of the "User Operation Manual " at any time without prior notice, through official channels including but not limited to the Ceres Air LLC website and Ceres Air Agricultural Service App.
Resale or Transfer: Your resale or transfer of Ceres Air agricultural drones - whether activated or not is at your sole discretion. Ceres Air LLC neither interferes with such transfers nor assumes liability for any associated risks.
Export Compliance: The export, re-export, or transfer of this product is governed by export control laws and other relevant export control regulations. Unless expressly authorized by applicable export control laws or licensed by competent export control authorities, you must ensure all operations—including use, sale, transfer, lease, or other disposition comply with the following requirements:

• Not violating embargoes under applicable export controls.
• Not transacting with prohibited end-users per export control lists.
• Solely for civilian end-use. Not for military applications, nuclear, biological and chemical weapons, or missile technology dissemination.

You are duty-bound to adhere to the relevant export control laws as well as any other applicable international export control regulations. You shall bear sole responsibility for any breaches of such laws that arise from your activities, including use, sale, transfer, rental, or any other actions related to the product.

Product Overview

Introduction

Drone Parts Diagram



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Remote Controller Components



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Drone Pre-Launch Checklist



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 Warning: Before extending the arms, you must unlock all arm locking latches.



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Warning: Before inserting the battery into the compartment, verify the battery is powered off.

Remote Controller Preparation



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External Battery Installation Procedure

Press the battery access door release button on the rear of the controller.
Place the intelligent battery into the compartment and slide upward until fully seated.
Close the battery access door until an audible click is heard.

 Warning: Do not leave batteries unattended while charging.

4G SIM Card Installation Procedure

RTK Module Installation Protocol

Power Verification Procedure

Antenna Optimization Procedure

Extend and adjust the controller antennas. Signal strength varies with antenna orientation. For optimal signal quality: Position antennas at 80° or 180° relative to the controller's backplane, ensure the antenna plane is directly facing the aircraft.
Aircraft Operation: Always maintain the aircraft within the optimal communication range. Continuously adjust your position or distance relative to the aircraft and monitor the real-time signal strength indicator to ensure stable connection.



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Do not use other devices operating on the same frequency band simultaneously, as this may cause interference with the remote control signals.
When using the RTK high-precision positioning module for RTK operations, detach the module after completing the operation. Failure to do so may impair remote control communication performance.

Setting Stick Mode



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Stick Calibration

Account Registration/Remote Pilot Certification



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Register your Ceres Air User Account

Activate Your Aircraft

Firmware Updates

A stable internet connection is required to download the latest firmware from Ceres Air’s servers.
When updating the Remote Controller, power OFF the aircraft completely. When updating the Aircraft, keep all propellers folded and secured.



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AGRICULTURAL DRONE OPERATIONS

Power On or Off Procedure

Power on

Power off

Charging Instructions

Use only the included 18S12000 Multi-Charger to charge intelligent batteries.
When using fuel-powered charging stations: Connect via high-power thick-gauge quick-charge cables.
If using other fuel generators: Verify that the generator's output meets battery specifications.

 Warning: Do not leave batteries unattended while charging.

Flight Mode System

Precautions for Attitude (Atti) Mode

Operational Modes



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Autonomous Operation Mode

 Warning: Automation does not eliminate pilot responsibility. The pilot must always be able to take control immediately.

Autonomous Operation Workflow

Initiate Operation
Access the Manual Control Home Screen
Load Target Field Data.



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A-B Point Mode

Set A-B Point



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Set Point A



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Set Point B



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Configure the flight path count and Application Parameters



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Manual Operation Mode



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Enhanced Manual Operation Mode



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Autonomous Return-to-Home (RTH)

Manual RTH

Chemical Depletion RTH

Low-Battery RTH

Link-Loss RTH

Home Point Selection

Access the Mission Interface in the Applicator View App by Ceres Air.
Confirm home point mode is set to "Current Aircraft Position".
Execute manual landing at a new location to trigger automatic home point refresh.

RTH Proximity Restriction

RTH Activation Prerequisites

Obstacle Avoidance During RTH

Low and Critical Battery Protection

Upon a Low Battery Warning activation in the App, immediately navigate the aircraft to a secure landing zone. After landing, perform a battery replacement. When configured for Return-to-Home (RTH) response at critical battery threshold: Activation of the Low Battery Warning in the App triggers audible or visual RTH alerts, followed by autonomous execution of certified RTH protocol. When configured for hover response at critical battery threshold: the activation of the Low Battery Warning in the App triggers geostationary position hold, with the aircraft awaiting manual intervention within a 5 minute operational timeout.



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Upon Critical Battery Alert or Severe Low Voltage Warning activation in the App, the aircraft auto-triggers controlled descent at current position with non-interruptible emergency protocols. Pilot intervention is system-locked during this type of landing sequence.

Aircraft Indicator Lights

Status Light Definition（M1/M4)



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ESC (Electronic Stability Control) Indicator Light Definition

RTK Positioning System



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RTK Function Activation or Deactivation

 Warning: Aircraft takeoff is prohibited when RTK is enabled but unavailable.

Network RTK Service Implementation

Confirm remote controller displays active internet connection.
Access App Mission Interface > RTK Settings, select "NTRIP CORS" as signal source.
Select "Coverage Check" to verify service availability in your area and then proceed to "Service Management Portal" for subscription purchase/activation.
Monitor RTK status until a connection is established (icon indicates RTK-FIXED state), confirming centimeter-level positioning active.



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HD201 Mobile Base Station Integration

This offers complete air-to-ground pairing and base deployment per HD201 documentation.
Power on the base station and await satellite acquisition. When the RTK status icon in the Mission Interface displays, the aircraft is actively utilizing base station corrections for centimeter-accurate positioning.

Radar System Functions



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Common Settings

Flowmeter Calibration



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When flow inaccuracy is detected.
After changing nozzle types/sizes.
After spray system modifications.

Weight Calibration



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IMU Calibration

Fold all four arms of the aircraft
Place the aircraft on a level surface, ensuring the airframe is within 1° of horizontal.

Calibration Procedure - Only When Prompted

In the Applicator View App by Ceres Air: Navigate to Home Screen, tap "Start Operation", open right-side slide-out panel then select "Aircraft Settings".
Navigate to "Advanced Settings", select "IMU". With two operators securely grip aircraft extremities (never touch sensors) and perform 3+ horizontal 360° rotations following on-screen orientation prompts. Success will be confirmed via remote controller notification.
If calibration fails, repeat the procedure following all previous steps.



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Basic Flight

Manual Takeoff



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Manual Landing



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High-speed rotating propellers can cause severe lacerations or amputations. Maintain 10ft (3m) minimum clearance from operating drone, establish safety zones to keep aircraft away from crowds, animals, obstacles.
Maintain active control of the transmitter and ensure positive aircraft command until full motor cessation is confirmed.
Never cut motor power during flight - immediate loss of lift will cause uncontrolled crash descent. Execute emergency motor shutdown Only when imminent collision with people is unavoidable, as a last resort to minimize injury severity.
After landing, power off the aircraft first, then deactivate the transmitter.

Motor Startup Procedure

 At the Mission Start interface, execute arming sequence only when all three conditions are met: Drone battery ≥30% capacity, stable RC link, active RTK positioning. Push both control sticks downward and inward (45° position) simultaneously to initiate motors.
Immediately release the throttle sticks after motor start-up and take off promptly. If not taking off, do not input stick commands to spin motors. Failure to comply may cause aircraft instability, drifting, or unintended takeoff, resulting in personal injury or property damage.

Motor Shutdown Procedure

After Landing: Pull the throttle stick to the lowest position and hold for 5 seconds until the motors stop.

 Warning: Propellers remain hazardous while spinning. Maintain a safe distance from the aircraft and keep it clear of people, animals, or obstacles.

Before motors stop, keep the remote controller in hand and ensure full control of the aircraft.
In-Flight Motor Shutdown (Emergency Only): Never stop motors mid-flight—this will cause an immediate crash. Exception: Only in emergencies (e.g., risk of collision with people) to minimize injury.
Post-Landing Shutdown Sequence: First power off the aircraft. Then power off the remote controller.

Flight Environment Requirements

Do not operate in high winds. Flying is prohibited when the wind force is above 17.9 MPH.
No flight in: Heavy fog, causing low visibility and a risk to reduced sensory performance.
No flight in strong winds (≥18mph), rain, snow, lightning, icing, or ice accumulation, and/or other hazardous weather.
Choose an open area  to operate that is free of tall structures. Buildings may block GNSS signals, causing RTK failure and flight instability.
Always fly within VLOS. Keep clear of obstacles, crowds, water, and animals.
Avoid flying in areas near high-voltage power lines, communication towers or other strong EMI sources.
Flight is strictly prohibited above an altitude of 400 feet.
Ensure strong GNSS reception and keep the RTK antenna unobstructed.
Never operate the drone indoors.
The operator must maintain a minimum distance of 49 feet from the aircraft, and all other personnel must keep a safety distance of at least 49 feet before the drone is allowed to take off.

Safe Landing Procedure

Before every landing: Confirm mission termination and manual control authority, gradually pull down the throttle stick, execute controlled descent to suitable terrain.
After touchdown: Lower throttle stick to minimum position and hold for 3+ seconds until motors stop.
Shutdown sequence: Power off aircraft first then power off controller.

 Warning: During flight, if the App indicates 'Low Battery': Immediately navigate the aircraft to a safe landing zone. Land the Drone and replace the battery with a charged battery. If the App displays 'Critical Low Battery', the aircraft will initiate auto-landing at its current position. Use extreme caution when applying stick commands to adjust position during auto-landing. Intervention may accelerate descent.

Controller

Controller Overview

Power On or Off

Charging

Internal Battery

 Warning: For optimal charging, use a 65W or higher charger (not included).

External Battery



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Controller Button Functions



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Joystick Control

 Warning: Factory default mode is Mode 2 (American Style). Never arm the aircraft under any circumstances if you're uncertain about the current control mode configuration.



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Joystick Calibration



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Plan Fields



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RTK planning

Ensure the high-precision RTK positioning module is installed on the remote controller.
Turn on the remote controller. Swipe down from the top of the screen and ensure the "USB" toggle switch is turned on.
From the App's main interface, tap "Plan Field" and select "RTK Planning".
Enter > RTK Settings. Select the RTK signal source (Network RTK, RTK Mobile Station) and complete the corresponding setup. Wait until the RTK positioning status bar at the top of the screen turns green, indicating that RTK positioning is active.
Walk while holding the remote controller along the area boundary. At each field corner, tap the "Add" icon. By default, this adds a boundary point. Add boundary points at all corners sequentially to complete field boundary planning.
Adding Obstacle Points: For non-circular obstacles, plan them similarly to the field. Walk while holding the remote controller along the obstacle boundary. At each obstacle corner, set the point type to "Obstacle Point" and tap the "Add" icon. Add obstacle points at all corners sequentially to complete obstacle mapping.
Important: When adding obstacles, we strongly advise planning the obstacle boundary at least 3 meters away from the actual obstacle for subsequent flight safety. You can also adjust this uniformly within the field editor after planning.
Adding Circular Obstacles: While holding the remote controller, walk to the circular obstacle.Set the point type to "Circular Obstacle", then tap any point on the obstacle's edge. Drag to adjust the radius size of the circular obstacle.
Smart Route Planning: The flight route is generated automatically once the field is added. After adding obstacles, the route automatically adjusts to find the optimal path around them.
Adding a Reference Point: If needed, you can add one reference point outside the planned field. This serves as a starting point, making it easier to correct the flight route using the aircraft's latest RTK position when calling up the field later.

Start RTK planning



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RTK planning for field boundaries



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RTK planning for irregular obstacles



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RTK planning for circular obstacles



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Remote Control Planning

Power on the remote controller and establish a stable connection. Then, navigate to the App's main interface, and tap Field "Planning", then select "Remote control planning".
Verify that there is  ≤6ft horizontal positioning accuracy. Follow identical procedures to the RTK Planning.



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Aircraft-Based Field Planning

Manually navigate the aircraft to desired locations and add survey waypoints via remote controller or mobile app to add map field boundaries and mark obstacle locations.
Power on the remote controller and launch the App to connect to the Drone.
Select Plan Field, choose Aircraft Planning mode.
Execute throttle stick inward diagonal movement (arm motors). Ascend to safe hover altitude (≥6ft).
Follow standard RTK Planning workflow, the key difference in flying the aircraft is that it replaces walking the perimeter.



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Map Planning



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 Warning: For map-planned fields, perform boundary verification before takeoff. Use drone-mounted vision systems and adjust via remote controller. This ensures centimeter-accurate positioning during operations.

Field Planning via Map

Flight Path Editing



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Flight Path Direction Adjustment



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Set Starting Point



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Waypoint Editing



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Obstacle Editing

Add Reference Point

Undo Action

Flight Path Segmentation



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Field Preview



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Spray Control

Spray Button



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Application Rate Per Acre Settings



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FPV/Map Toggle



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Customizable Buttons



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One-Tap Return-to-Home (RTH) Button

Remote Controller Signal Range

Remote Controller Audio Prompts

Remote Controller Pairing

Turn on the remote controller, launch the Applicator View App by Ceres Air, then power on the aircraft.
Navigate to Settings > Remote Control Settings, and tap "Pair", then tilt the drone's nose or tail upwards to an angle greater than 30 degrees relative to the ground. Wait until you hear a "beep-beep" confirmation sound and see the pairing status indicator light change from flashing red to solid green, indicating successful pairing. If pairing fails, re-enter pairing mode and repeat the process.



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Flight Intelligent Battery



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Overview

Carrying Handle

Power Button

LED Indicators

Power Port

Silicone Protective Sleeve

HE102 Battery Usage Guidelines

After connecting the battery to the aircraft, power on: Short-press, then long-press the power button.
Power off (after landing): Short-press, then long-press to shut down. Disconnect from the aircraft.
Ensure battery level exceeds 95% before each flight.
Low-battery alert: Land immediately and replace the battery.
Cold weather operation: Pre-warm batteries above 5°C (41°F); 20°C (68°F) recommended. Achieve this by hovering briefly.

 Critical Warnings:

It is prohibited to use near heat sources (direct sunlight, hot vehicles, flames, heaters, or generator exhaust).
Batteries must be charged on non-flammable surfaces with adequate ventilation and clearance from fuels and combustibles.
Never expose to liquids. Water contact may cause thermal runaway, fire, or explosion. Avoid rain/humid environments.
Do not use swollen, leaking, or damaged batteries. Contact authorized dealers immediately.
Always power off before installing/removing batteries. Hot-swapping damages ports.
Use the battery within an ambient temperature range of 23°F to 113°F. Excessive heat (above 122°F) may cause fire or explosion. Extreme cold (below 23°F) severely reduces performance; normal function resumes at room temperature.
Avoid strong electrostatic or magnetic fields,  which may trigger protection circuit faults.
Never disassemble or puncture the battery with sharp objects, as this may cause fire or explosion.
Electrolyte leakage, Highly corrosive!  If leakage occurs, stay away. If skin or eyes are exposed, rinse immediately with clean water and seek medical help.
Discard batteries after impacts or drops.
After water immersion, send batteries for inspection. Do not reuse.
Fire response, use in this order: Water/mist, Sand, Fire blanket, Dry powder, CO₂ extinguisher.
Never short-circuit terminals with metal objects.
Avoid impacts or compression. No heavy objects on batteries or chargers.
Clean terminals with dry cloth to prevent poor contact or charging failure.
Land immediately if battery falls below 15% , as this may damage the battery or cause flight accidents.
Reverse polarity PROHIBITED. Improper charging may cause overheating, explosion, or fire. Only use official-recommended batteries. Unauthorized batteries may lead to accidents or malfunctions, for which the user is responsible.Unauthorized batteries void warranty; user assumes all liability.
Place on flat surfaces to avoid puncture by sharp objects..
Danger: Never stack items on batteries or use as seating, as this may cause damage or danger.

 Warning: Do not leave batteries unattended while charging.

Transportation, Storage, and Maintenance

Transportation and Storage

During transportation, ensure the battery is powered off and disconnected from the drone or any other device.
Store the battery out of reach of children. If any parts are accidentally swallowed, seek immediate medical attention.
If the battery indicates a critically low charge after flight, recharge it to approximately 25% before storage. Prolonged storage at a low charge may damage the battery.
Do not place the battery near heat sources, such as direct sunlight, inside a hot car, near open flames, or heating appliances.
Store the battery in a dry environment. Avoid exposing it to water or areas prone to leaks.
Do not store or transport the battery with metal objects (e.g., glasses, watches, metal necklaces, hairpins) or flammable/explosive materials.
Never transport damaged batteries or those with a charge exceeding 30%. Discharge the battery to around 25% before transportation.
When placing the battery, ensure the surface is flat to prevent sharp objects from puncturing the bottom.
For long-term storage (over 3 months), keep the battery in an environment with a temperature between -20°C and 40°C.
Avoid storing the battery in a fully discharged state for extended periods, as this may cause over-discharge, leading to irreversible cell damage.
If the battery is severely depleted and left idle for too long, it will enter deep sleep mode. To reactivate it, recharge the battery.
For long-term storage, disconnect the battery from the aircraft.

Maintenance

Do not clean the battery with water.
Never store the battery in environments where temperatures exceed 45°C (113°F) or fall below -20°C (-4°F).
Long-term inactivity may negatively impact the battery’s performance.
Recharge and discharge the battery approximately every 3 months to maintain its activity.
Batteries that go without maintenance (charging/discharging) for over 5 months will not be covered under warranty.

Packing List



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Aircraft Center of Gravity



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Equipment Configuration for Transportation

Hazard List and Response Procedures



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Fault Handling Guide



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Technical Specifications



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