Fieldpiece DRX3 Refrigerant Leak Detector

Description

The compact and rugged DRX3 Refrigerant Leak Detector helps you find leaks fast in the field. It comes equipped with a sensitive heated diode sensor that quickly detects HC, HFC, HCFC, CFC, HFO, H₂/N₂ (Tracer Gas), and blend refrigerants.

Multiple indicators ensure you catch even the smallest leaks. The flashing LED at the tip lets you keep your eyes on the target. The loud beep changes with leak intensity. The large backlit LCD displays bars and numerical values of relative leak intensity, and it is visible in both bright sunlight and low light. With the Job Link® System app, you can see the readings right on your phone.

You have full control to hone in on leaks with the ability to switch between automatic (AZERO) and manual (MZERO) zeroing modes.

Detect more leaks with up to 60 hours on a set of four Energizer L91 AA Lithium Iron Disulfide batteries. Replaceable batteries mean no time wasted waiting for it to charge. The DRX3 is ready whenever you are. It's built for the field with a rugged IP54 body designed to keep out water and dust.

Visual Description of Product: A sleek, black handheld device with a silver probe extending from the top. The probe tip has a red LED indicator. The device features a clear LCD screen displaying numerical values and a bar graph, along with several buttons labeled "MAX ON/OFF", "ZERO", "SENSITIVITY", "REFRIGERANT", and "POWER". The brand "Fieldpiece" is prominently displayed.

What's Included

• DRX3 Refrigerant Leak Detector with A3/A2L/A1 Refrigerant Sensor Module
• Heated Diode Sensor, Replaceable (RXA3)
• 4x Energizer L91 AA Lithium Iron Disulfide Batteries
• Blow Molded Carrying Case
• Operator's Manual
• 1 Year Limited Warranty

Safety First!

RISK OF EXPLOSION. DANGER: This machine is for use only by qualified and certified technicians in the safe use, handling, and transporting of refrigerants. Please refer to flammable refrigerant safety guides, regional codes and legislation for more information. Read and understand this operator's manual in its entirety before using to prevent injury or damage to you or equipment.

WARNINGS - Failure to heed these hazards and actions while using this device can result in serious injury or death. This device is intended to be used strictly as a leak detector (spot reading device). THIS IS NOT A SAFETY DEVICE INTENDED FOR MONITORING REFRIGERANT LEVELS.

Explosion Hazard Warnings (A2L & A3 Refrigerants)

• WARNING: EXPLOSION HAZARD. Verify the batteries are installed correctly and that the cover is properly sealed outside of the Temporary Hazard Zone with a 3-meter/10 foot perimeter.
• WARNING: EXPLOSION HAZARD. Do not change batteries in the Temporary Hazard Zone.
• WARNING: EXPLOSION HAZARD. To maintain ATEX Compliance, only use 4 x AA Energizer L91 batteries.
• WARNING: EXPLOSION HAZARD. Do not remove or change the sensor tip or module in the Temporary Hazard Zone.
• Always wear Proper Protective Equipment (PPE), which includes gloves and safety glasses.
• Know proper safety and handling requirements of the refrigerant in the Safety Data Sheet (SDS).
• Avoid breathing refrigerant and oil vapors. Inhalation of high concentrations of refrigerant vapor can block oxygen to the brain causing injury or death.
• Perform leak detection in accordance with recommended practice.
• Only work in well-ventilated areas (minimum of 6 air exchanges per hour).
• Electrostatic hazard - don't clean with dry cloth, ensure that user is appropriately discharged/grounded.
• Inspect this device prior to use. Do not use if there is obvious damage.

Additional Safety Instructions for Handling A2L & A3 Refrigerants with Other Equipment

• Adhere to local occupational safety codes and possess detailed knowledge and skills when handling flammable refrigerants.
• Have emergency, evacuation, and fire protection plans.
• Designate and monitor a Temporary Hazard Zone with a 3-meter/10 foot perimeter. Identify and disable all possible ignition sources within this zone. Monitor air to verify refrigerant levels stay below hazardous levels as specified in Safety Data Sheet (SDS). Use a ventilation fan to maintain 6 air exchanges per hour within this zone.
• WARNING: EXPLOSION HAZARD. When using additional corded equipment, ensure unit(s) power is switched OFF (0️⃣) before connecting and lock the power cord onto the unit(s). Continue by connecting the main power. Connect any other equipment outside of the Temporary Hazard Zone.
• WARNING: EXPLOSION HAZARD. For battery powered devices, recharge or replace batteries outside of the Temporary Hazard Zone.
• WARNING: EXPLOSION HAZARD. When using additional equipment, ensure area around the device(s) is free of debris that could enter air vents and fan and cause accidental sparking.
• WARNING: EXPLOSION HAZARD. Always remain in attendance and observant when equipment is operating.
• Do not mix flammable refrigerants with air.
• If recovering a system with a suspected leak, stop recovery at 0 psig/bar to prevent air from entering the recovery tank.
• Use an evacuated recovery tank that complies with local regulations.
• After recovery, purge system with 100% nitrogen before opening system for repair.
• Handle hoses and equipment carefully as refrigerant is under high pressure and can cause frost bite.
• Ensure power and extension cords are in good working condition to prevent shock and spark hazards.
• Failure to use as intended / per instructions will void warranty and functionality of equipment.

Cautions

CAUTIONS - Failure to heed these conditions can cause equipment damage.

• Ensure that all equipment is in good working condition.
• Prevent prolonged exposure to direct sunlight. Store indoors.
• Do not submerge the sensor tip in water. Sensor will need to dry out before resuming function.
• The unit must be protected against severe impact. Solid objects must not be allowed to fall onto the unit.

Quick Start

1. Install sensor (see Sensor Installation section for details).
2. Move to a refrigerant-free environment and hold until your DRX3 powers on.
3. Allow warm-up (calibration) to complete. Total used sensor hours is also displayed.
4. Press the REFRIGERANT button as needed to select the appropriate refrigerant.
5. Begin searching for the leak source. Move the tip slowly ~ 7.62 cm (3 inches)/sec and as closely as possible to the suspected refrigerant line.
6. Search until refrigerant gas is detected. The red light flashes, an audible alarm triggers, and the display indicates the relative gas intensity.
7. Confirm leak source. Move tip away from alarm location for a few seconds to clear the sensor. Return tip back to suspected leak, looking for the highest value.

Scan for your region: [QR code placeholder - actual QR code excluded as per instructions].

Sensor Installation

1. Ensure your DRX3 is powered off.
2. Align the new sensor tip (RXA3) notch with the module notch and push into place at the end of the module. DO NOT TWIST.
3. For a new sensor, enter factory mode by holding the ZERO and SENSITIVITY buttons together for more than 5 seconds.
4. Press ZERO until "2. Reset Sensor Life" appears. Press and hold ZERO and SENSITIVITY to reset sensor hours.
5. Press and hold the POWER button to power off.

Visual Description of Diagram: Shows the sensor tip and the module, each with a distinct notch. The diagram illustrates aligning these notches and inserting the sensor tip into the module without twisting.

Maintenance

• CLEANING: Wipe with a damp cloth to clean the exterior. Do not use detergents or solvents.
• BATTERY REPLACEMENT: Place the unit face down on a non-abrasive surface. Remove the 4 screws, lift the panel off, and remove the old batteries. Replace with 4x Energizer L91 AA Lithium Iron Disulfide batteries. NOTE: To maintain ATEX compliance, only use Energizer L91 batteries. Ensure the red seal is fully inside the groove when replacing the panel and tightening the 4 screws.
• SENSOR REPLACEMENT: Ensure your DRX3 is powered off. Remove the old sensor by holding the module firmly and pulling the sensor tip straight out. DO NOT TWIST. Align the new sensor tip (RXA3) and push into place at the end of the module. For a new sensor, with the unit powered off, enter factory mode by holding the ZERO and SENSITIVITY buttons together for more than 5 seconds. Press ZERO until "2. Reset Sensor Life" appears. Press and hold ZERO and SENSITIVITY to reset sensor hours. Press and hold the POWER button to power off. NOTE: Do not reset sensor hours if you are re-installing the same sensor. Depending on gas exposure, the RXA3 sensor should be replaced after approximately 300 hours of use, or if you get a "REPLACE SENSOR" alert.
• FIRMWARE UPDATE: On the Job Link® app, select Measurements from the home screen, then Evacuation. For Leak Detection, tap LINK TOOL and select the DRX3. If there is a firmware update available, you will be notified by a notice on the bottom of the screen and a red dot by the tool. Tap the red dot, and follow the steps to download/install the latest firmware. With the DRX3 powered off, press and hold SENSITIVITY, and then for more than 5 seconds to access Update Mode "UPDATE".

Functionality Test

Use a refrigerant tank and a cap to check if your DRX3 is detecting refrigerant properly.

1. Tightly cap a refrigerant tank port to seal it.
2. Open valve to coat the inside of the cap, then close the valve.
3. With DRX3 set to high sensitivity (H), remove the cap and wave the tip over the cap. You should see a very large leak size of approximately "99" and a full bar graph. If not, the sensor may need to be replaced.

Visual Description of Diagram: A three-step process: 1. A refrigerant tank port is sealed with a cap. 2. The tank valve is opened to expose the cap's interior to refrigerant, then closed. 3. The DRX3 probe is waved over the cap, showing a high reading (99) and a full bar graph.

Operation

• Power (⚡): Press and hold for >1 second to toggle power on/off.
• Backlight (?): Press to toggle the blue backlight.
• Refrigerant Selection (❄️): After warm-up, press and hold REFRIGERANT to select A1-2L, specific A3 refrigerants (R50, R290, R600, R600a), or H₂/N₂.
• Zero Modes:
  • AZERO (Automatic Zero): DRX3 starts up in automatic zero mode, which sets a new zero point every three seconds, indicated by AZERO blinking twice. Moving closer to the leak source shows the relative increase in concentration, triggering the alarm. Conversely, stopping at or moving away from the leak source will not trigger a response.
  • MZERO (Manual Zero): Press and hold ZERO and SENSITIVITY for > 2 seconds to toggle manual zero mode. DRX3 does not zero automatically while MZERO is displayed and will continue to alarm and display the relative leak size.
• Zero Set (0️⃣): Press ZERO to manually set the currently measured concentration to 0, indicated by the Message Line blinking twice.

Visual Description of DRX3 Components: The unit features a Leak Indicator LED (red light at the tip), a Speaker for audible alerts, and a Status Bar displaying icons for Sensitivity (⚙️), Mute (?), and Battery (?). The display includes a Message Line, Max Text, and a Numerical Leak Size Indicator with Bar Graph, showing a value from 0-99 and a corresponding bar graph. Buttons include Power (⚡), Backlight (?), Refrigerant Selection (❄️), Zero Set (0️⃣), and Sensitivity (⚙️).

• Numerical Leak Size Indicator with Bar Graph: The number (0-99) represents the relative concentration of refrigerant gas. The bar graph shows the same measurement in steps for easy monitoring. Higher numbers and fuller bars indicate higher concentration and proximity to the leak.
• Maximum Mode (MAX): Press and hold MAX ON/OFF for >1 second to toggle max mode. When active, the highest leak size detected is continually recorded. The recorded maximum is cleared when sensitivity or selected refrigerant is changed, or if manually zeroed.
• Sensitivity (H/M/L) (⚙️): DRX3 starts in High (H) sensitivity, recommended for most situations. To pinpoint leaks in areas with excess triggering or sensor saturation, press SENSITIVITY to cycle to Medium (M) or Low (L) sensitivity.
• Mute (?): Press ZERO and SENSITIVITY simultaneously for < 1 second to toggle the speaker on/off.
• Leak Indicator LED: The red LED at the tip is often easier to monitor than the display. Its blink rate increases with relative concentration, allowing many leaks to be found without viewing the display.
• Sensor Hours Counter: With the unit powered off, press and hold ZERO and SENSITIVITY to enter factory mode. Press ZERO until "2. Reset Sensor Life" is displayed. The RXA3 sensor tip should be replaced after approximately 300 hours of use, or if a "REPLACE SENSOR" alert appears.
• LINK TOOL: Power on the DRX3 and allow it to warm up. On the Job Link® app, navigate to Measurements > Evacuation, then tap LINK TOOL and select the DRX3. This allows viewing the relative concentration (0-99 units) via the Numerical Leak Size Indicator and Bar Graph. Use LOG to record measurements (up to 6), TAG to add notes (up to 6), and EDIT to modify tags. Tap "..." Options to Log Data and Create PDF reports.

Specifications

• Sensor Type: Heated diode
• Sensor Life: 300 hours typical
• Sensitivity Levels: High, Medium, Low (selectable)
• Maximum Sensitivity: 1g/yr (0.03 oz/yr) stationary; 3g/yr (0.1 oz/yr) in motion
• Detection Feedback: Flashing LED, LCD bar graph and digits, audible beep, Job Link® app
• Refrigerants: HC, HFC, HCFC, CFC, HFO, H₂/N₂ (Tracer Gas: 5% Hydrogen, 95% Nitrogen), and blends
• For Use With: A3 (R-290, R-600a, R-600, R-50), A2L (Including R32, R1234yf, R1234ze), and A1 refrigerants
• Not For Use With: R-702, R-717, R-744
• ATEX Rating: II 3 G Ex ic IIA T2 Gc
• Operating Environment: -20°C to 50°C (-4°F to 122°F); < 95% RH (non-condensing)
• Battery Type: 4x Replaceable AA Lithium Iron Disulfide (To maintain ATEX compliance, only use 4 x Energizer L91 AA batteries.)
• Battery Capacity: 1.5 VDC (nominal) 3500 mAh
• Battery Life: 60 hours typical
• Auto Power Off: 10 minutes without detection or button press
• Radio Frequency: 2.4 GHz
• Wireless Range: Up to 305 meters (1000 feet) line of sight
• Storage Temperature: -20°C to 60°C (-4°F to 140°F); < 95% RH
• Weight: 442g (15.6 oz)
• Main Body Water Resistance: IP54
• US Patents: www.fieldpiece.com/patents
• Wireless Compatibility: Latest compatibility at www.fieldpiece.com
• Job Link System Minimum Device Requirement: BLE 4.0 devices running iOS 13.4 or Android Marshmallow 6.0

Certifications and Compliance

• CE (European Conformity)
• UKCA (UK Conformity Assessed)
• Ex (ATEX Compliance: II 3 G Ex ic IIA T2 Gc, -20°C <=Tamb<= +50°C)
• RoHS (Restriction of Hazardous Substances Compliant)
• FCC (Federal Communications Commission)
• IC (Industry Canada)
• WEEE (Waste Electrical and Electronic Equipment - Do not dispose through typical waste streams.)
• Regulatory Compliance Mark

FCC Statement

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.

This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one of the following measures:

• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.

FCC Caution: To assure continued compliance, any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate this equipment. (Example - use only shielded interface cables when connecting to computer or peripheral devices).

FCC Radiation Exposure Statement: This equipment complies with FCC RF radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum distance of 0.5 centimeters between the radiator and your body. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. The antennas used for this transmitter must be installed to provide a separation distance of at least 0.5 cm from all persons and must not be co-located or operating in conjunction with any other antenna or transmitter.

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) This device must accept any interference received, including interference that may cause undesired operation.

Industry Canada Statement

This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canada's licence-exempt RSS(s). Operation is subject to the following two conditions: (1) This device may not cause interference. (2) This device must accept any interference, including interference that may cause undesired operation of the device.

L'émetteur/récepteur exempt de licence contenu dans le présent appareil est conforme aux CNR d'Innovation, Sciences et Développement économique Canada applicables aux appareils radio exempts de licence. L'exploitation est autorisée aux deux conditions suivantes : 1) L'appareil ne doit pas produire de brouillage; 2) L'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement.

IC Radiation Exposure Statement: This equipment complies with RSS-102 radiation exposure limit set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 0.5 cm between the radiator and your body. Cet équipement est conforme aux CNR-102 d'Industrie Canada. Cet équipement doit êtreinstallé et utilisé avec une distance minimale de 0.5 centimètres entre leradiateur et votrecorps. Cet émetteur ne doit pas être co-localisées ou opérant en conjonction avec autreantenne ou émetteur. Les antennes utilisées pour cet émetteur doivent être installés etfournir une distance de séparation d'au moins 0.5 centimètre de toute personne et doit pas être co-située ni fonctionner en conjonction avec une autre antenne ou émetteur.

Limited Warranty

This product is warranted against defects in material or workmanship for one year from date of purchase from an authorized Fieldpiece dealer. Fieldpiece will replace or repair the defective unit, at its discretion, subject to verification of the defect.

This warranty does not apply to defects resulting from abuse, neglect, accident, unauthorized repair, alteration, or unreasonable use of the machine.

Any implied warranties arising from the sale of a Fieldpiece product, including but not limited to implied warranties of merchantability and fitness for a particular purpose, are limited to the above. Fieldpiece shall not be liable for loss of use of the machine or other incidental or consequential damages, expenses, or economic loss, or for any claim of such damage, expenses, or economic loss.

Local and national laws vary. The above limitations or exclusions may not apply to you.

Obtaining Service

Visit www.fieldpiece.com/rma for the latest information on how to obtain service in the U.S. and Canada.

For customers outside the U.S., warranty for products should be handled through local distributors.

Visit www.fieldpiece-europe.com/store-locator for local distributors in Europe.