Fieldpiece JL3RH - Job Link System Flex Psychrometer Probe Manual

Quick Start

1. Install the Fieldpiece Job Link system app on your mobile device and sign up for an account if you're a new user.
2. Remove the single screw of the yellow battery cover and install 2 x AAA batteries.
3. Press for 1 second to power on.
4. Open Measurements in the Job Link app and favorite the probe to the tool manager.
5. Remove protective slip cover from tip.
6. View live measurements on your mobile device up to 350 feet away.

What's Included

Job Link System Flex Psychrometer Probe
1 Protective Slip Cover
2 x AAA Batteries
Operator's Manual
1 Year Limited Warranty

Prevent damage, do not drill holes blindly into a plenum that houses the evaporator or heat exchanger.

Description

The JL3RH Job Link System Flex Psychrometer Probe sends air measurements directly to the Fieldpiece Job Link app up to 350' away.
Measure %RH, dry bulb, wet bulb, dew point, and enthalpy at a register/grille, in the duct, or just walking around. Bend the flexible probe and slide the magnet to conveniently configure the JL3RH to your situation.
The rubberized protective housing is both ergonomic and rugged for daily use. Flip the switch and app immediately knows which side of the system you're going to place your psychrometer probe.
Use the long wireless range, strong magnet, and flexible probe for quick and easy psychrometrics testing.

Maintenance

CLEANING: Clean the exterior with a damp cloth. Do not use detergents or solvents. Do not touch the sensor.

BATTERIES: When the LED slow blinks Red, the batteries must be replaced. Ensure the power is OFF. Remove the single screw from the yellow battery cover. Install 2 x AAA batteries. Monitor battery life in the app's tool manager.

SENSOR CARE: Cover the sensor with the slip cover when not in use. Extreme conditions or exposure to solvent vapor may offset the RH sensor. To re-calibrate, place the sensor in a controlled environment of 75%RH and between 68°F - 86°F for a period of 24 hours. To create a 75%RH environment, add wet salt to a clean open container (bottle cap). Be careful to not let the solution touch the probe. Place this container and the probe in a large sealed bag at room temperature, undisturbed for 24 hours.

Specifications

Minimum Device Requirement:
BLE 4.0 devices running iOS 7.0 or Android™ 5.0
(Latest compatibility at www.fieldpiece.com)
Battery Type: 2 x AAA, NEDA 24A, IEC LR03
Battery Life: 150 hours typical alkaline. LED blinks red when battery replacement is needed.
Auto Power Off: 2 hours (APO can be disabled)
Wireless Range: 350 feet (107 meters) line of sight.
Obstructions affect distance.
Radio Frequency: 2.4 GHz
Operating Environment: 32°F to 122°F (0°C to 50°C) at <75% RH
Storage Temperature: -4°F to 140°F (-20°C to 60°C), 0 to 80% RH (with batteries removed)
Temperature Coefficient: 0.1 x (specified accuracy) per 1.8°F
(32°F to 64°F, 82°F to 122°F), per 1°C (0°C to 18°C, 28°C to 50°C)
Weight: 0.33 lbs (150 g)
Flexible Probe: 0.36" (9mm) diameter; 9.25" (235mm) length
US Patent: www.fieldpiece.com/patents

Relative Humidity (%RH)
Sensor Type: Capacitance polymer film
Hysteresis: ±1%RH typical (Excursion of 10% to 90% to 10%RH)
Measurement Range: 0%RH to 100%RH
Accuracy: (At 73.4°F (23°C))
±2.5% (10%RH to 90%RH); ±(5%) <10%RH, >90%RH
Response Time: 60 seconds typical for 90% of total range

Temperature
Sensor Type: Precision thermistor
Measurement Range: -4°F to 140°F (-20°C to 60°C)
Accuracy: ±(1°F) 32°F to 113°F, ±(0.5°C) 0°C to 45°C;
05±(2°F) -4°F to 32°F, 113°F to 140°F, ±(1°C) -20°C to 0°C, 45°C to 60°C

Operation

Press for 1 second to power ON/OFF.

LED Color Indications

Green slow blink: normal operation
Red slow blink: batteries need to be replaced

Supply or Return Side Switch

The Job Link system app knows which side you have selected for each probe. Select Supply air or Return air and place it on the system appropriately.

Magnetic Hanger

You can slide the magnet to where you need it. Slide it to the top and reach high grilles/ registers.
The magnet also holds the psychrometer in place when testing in duct air. Just bend the probe and slide into a 3/8" (10mm) hole in the duct.

Remote Data Logging

(Data logging will be available shortly after time of printing. Look for updates.)
Use the Job Link system app to program the JL3RH to log measurements starting at a specific time of day for up to 7 days. Auto power off disables.

1. Make sure JL3RH is powered OFF.
2. Open the Job Link system mobile app.
3. Press for 5 seconds to enter data logging mode. The LED will shine solid green.
4. Set up the probe's data logging parameters within the app. The LED will blink green while the app is sending setup instructions. The LED will slow blink blue when waiting for programmed start time to occur.
5. Place the JL3RH on the system.
6. When the programmed start time is reached, the LED will very slowly blink green to indicate data logging has begun.
7. When the programmed span has finished, the LED blinks and powers OFF.
8. Repeat steps 1-3 and use the app to extract your data log from the JL3RH.

Auto Power Off (APO)

The probe will automatically power off after 2 hours. To disable APO until powered off, while power is on tap twice. The LED will briefly blink red. To enable APO, while power is on tap twice. The LED will briefly shine red.

Documents / Resources

References

• HVAC Vacuum Pump | Fieldpiece
• Patents - Fieldpiece Instruments

Download manual

Here you can download full pdf version of manual, it may contain additional safety instructions, warranty information, FCC rules, etc.

Download Fieldpiece JL3RH - Job Link System Flex Psychrometer Probe Manual