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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
High or Low Side Switch
The Job Link™ app knows which side you
have selected for each probe. Select Suction
line or Liquid line and place it on the system
appropriately.
Remote Data Logging
(Data logging will be available shortly after
time of printing. Look for Job Link™ app updates.)
Use the Job Link™ app to program the JL3PR
to log measurements starting at a specific time
of day for up to 7 days. Auto power off disables.
1 Make sure JL3PR is powered OFF.
2 Open the Job Link™ 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 JL3PR 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 Job Link™ app
to extract your data log from the JL3PR.
Auto Power Off (APO)
The pressure 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.
Auto Calibration
Automatically calibrate your JL3PR by ensur-
ing the sensor is open to atmosphere when you
power ON the probe.
Maintenance
CLEANING: Clean the exterior with a damp
cloth. Do not use detergents or solvents.
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 batter-
ies. You can also monitor battery life in the Job
Link™ app tool manager.
GASKET: The black rubber gasket that seals
the pressure probe to the service port may
become worn over time potentially causing a
leak. This results from overtightening or con-
necting to damaged service port fittings.
1 Use needle nose pliers or a similar tool to
unscrew the Schrader valve depressor from
the gasket.
2 Remove and replace the worn gasket.
3 Screw the depressor back into the gasket.
Specifications
Minimum Device Requirement:
BLE 4.0 devices running iOS® 7.0 or Android
TM
5.0
(Latest compatibility at www.fieldpiece.com)
Sensor Type: Relative pressure
Connector Type: Standard 1/4" NPT female flare fitting (angled)
Measurement Range:
29” HgV to 580 psig, 74 cmHgV to 0 to 4000 kPa
Accuracy:
29” HgV to 0” HgV: ±0.2” HgV; 74 cmHgV to 0 cmHgV: ±1 cmHgV
0 to 200 psig: ±1 psig; 0 to 1378 kPa: ±7 kPa
200 to 580 psig: ±2 psig; 1378 to 4000 kPa: ±14 kPa
Maximum Overload Pressure: 800 psig (5500 kPa)
Battery Type: 2 x AAA, NEDA 24A, IEC LR03
Battery Life: 150 hours typical alkaline. LED blinks red when bat-
tery 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 0.6°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: 0.39 lbs (177 g)
Water Resistant: Designed to IP55
Liquid Line
(High Side)
(Red)
Suction Line
(Low Side)
(Blue)
Schrader Valve Depressor
Gasket
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Pressure Measurement
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Weight and Dimensions
