Fieldpiece JL3MN Job Link Manometer Probe Owner’s Manual
- June 5, 2024
- Fieldpiece
Table of Contents
Job Link® System Manometer Probe
OPERATOR’S MANUAL
Model JL3MN
Quick Start
- Install the Fieldpiece Job Link® System app on your mobile device and sign up for an account if you’re a new user.
- Remove the single screw of the yellow battery cover and install 2 x AAA batteries.
- Press ****for 1 second to power on.
- Open Measurements in the Job Link app and favorite the probe in the tool manager.
- Tap ****to zero.
- View live measurements on your mobile device up to 1000 feet (305 meters) away.
What’s Included
Job Link® System Manometer Probe
2 x AAA Batteries
Tubing with brass fitting
Bulk tubing| Gas adapter
Static pressure tip
Operator’s manual
1 Year limited warranty
---|---
Description
The JL3MN Job Link® System Manometer Probe sends static pressure or gas
pressure measurements directly to the Fieldpiece Job Link app up to 1000 feet
(305 meters) away.
Use two JL3MN probes to do even more.
Because they are untethered, you don’t need long hoses to measure differential
pressures.
Measure and view real-time return static, supply static, and total external
static pressure all at once. Use your static pressure tip with short tubing
for accurate static pressure measurements. Measure real-time inlet and
manifold pressures simultaneously with 2 Job Link manometers.
Mount your manometer to equipment for hands-free use in tight spaces. The
powerful rotating magnet holds tight even when the hose is tugged or the
equipment shakes. Slide the switch and the app immediately knows which side of
the system you’re going to place your manometer probe.
Maintenance
CLEANING: Clean the exterior with a damp cloth. Do not use detergents or
solvents. Do not apply pressurized air into the connection port.
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.
You can also monitor battery life in the Job Link app tool manager.
SENSOR CARE: Store JL3MN in a protective cover when not in use to prevent
debris or foreign contaminants from entering the barb tip. Do not pressurize
the probe above its max specification.
WARNING
To prevent damage, do not drill holes blindly into a plenum that houses the
evaporator or heat exchanger.
Do not place any part of the manometer on hot surfaces such as exhaust fumes.
Doing so can cause personal injury, damage to equipment, and void warranty.
Do not apply more than 11.6 psi.
Specifications
Minimum Device Requirement:
BLE 4.0 devices running iOS® 7.0 or Android™ 5.0
(Latest compatibility at www.fieldpiece.com)
Compatible Media: Dry, non-corrosive gas
Pressure Port: Tube connector for flexible tubing (4.5 to 8mm ID)
Units of Measure: WC, mmWC, bar, psi, Pa
Accuracy and Ranges:
inWC: ±(1.5% + 0.02) 0.00 to ± 60.00;
mmWC: ±(1.5% + 0.5) 0.0 to ± 1500.0;
bar: ±(1.5% + 0.05) 0.00 to ± 150.00;
psi: ±(1.5% + 0.001) 0.000 to ± 2.165;
Pa: ±(1.5% + 5) 0 to ± 14930
Maximum Overload Pressure: 321.08 inWC (11.6 psi; 80.0 kPa)
Battery Type: 2 x AAA, NEDA 24A, IEC LR03
Battery Life: 150 hours typical alkaline. LED slow-blinks red when
battery replacement is needed.
Auto Power Off: 2 hours (APO can be disabled)
Wireless Range: 1000 feet (305 meters) line of sight.
Obstructions affect distance.
Radio Frequency: 2.4 GHz
Operating Environment: -10°F to 122°F (-23°C to 50°C) at <75%
RH
Storage Temperature: -10°F to 140°F (-23°C to 60°C) at <80% RH (with
batteries removed)
Temperature Coefficient: 0.1 x (specified accuracy) per 1.8°F (-10°F to 64°F,
82°F to 122°F), per 1°C (-23°C to 18°C, 28°C to 50°C)
Weight: 0.30 lbs (137 g)
US Patent:
www.fieldpiece.com/patents
Operation
** Press for 1 second to power ON/OFF.
Tap to zero measurements.
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 P1 or P2 and place it on the system appropriately.
Static Pressure
Static pressure testing ensures if the equipment is operating within factory
specifications.
-
Zero your JL3MN while in ambient pressure with any tubing/probes attached before taking measurements.
For measurements less than 2 inWC, take reading within 1 minute after zeroing for best accuracy. -
Use the included static pressure tip when checking static pressure in an airflow stream.
NOTE:
The red arrow on the static probes should point toward the airflow of the stream. -
Place a JL3MN before and after the filter to measure your filter pressure drop ( B A ).
-
Place a JL3MN before and after the coil to measure your coil pressure drop ( DC ).
-
Place a JL3MN in the inlet and outlet air of the equipment to measure your total external static pressure ( C B ). Check with the manufacturer to determine TESP test locations.
NOTE: If you are in an environment where the temperature is noticeably changing while you are taking your reading, it is advised that you disconnect the probe from the tubing and ZERO it relative to the ambient air before each reading.
Gas Pressure
Prevent symptoms like rough starts or overheating your heat exchanger by
checking your gas pressure.
-
See manufacturer’s specification for target inlet and outlet fuel or gas pressures.
-
Shut off the main gas supply power to the furnace.
-
Zero your JL3MN while at ambient pressure with tubing attached before taking measurements.
-
Remove the outlet pressure tap screw and insert the brass screw fitting of the hose into the outlet pressure tap of the gas regulator.
NOTE: Some pressure taps have a 5/16” boss instead of an insert screw. In this case, use the included 5/16” adapter tube. Loosen the tap screw about 1 revolution and slide the tube over the boss. -
If you suspect high or low inlet pressure to the regulator, connect the JL3MN to the inlet tap.
-
Put the furnace into operation and begin to take measurements.
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.
Certifications and Module IDs
| EN 300 328 | Regulatory Compliance Mark |
|---|---|
| 2ALHR003 | Waste Electrical and Electronic Equipment |
| Restriction of Hazardous Substances Compliant |
IC: Industry Canada
22518-BT003| I FEEL: Federal Telecom Institute
RCPFI2A18-0235
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).
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.
This device complies with Industry Canada license-exempt RSS-247 standard.
Operation is subject to the following two conditions: (1) this device may not
cause interference, and (2) this device must accept any interference,
including interference that may cause undesired operation of the device.
IC Radiation Exposure Statement: This equipment complies with IC RSS-102
radiation exposure limit set forth for an uncontrolled environment. This
equipment should be installed and operated with a minimum distance of 0.5 cm
between the radiator and your body.
Fieldpiece Instruments 1636 West Collins Avenue, Orange, CA 92867
I FEEL Statement
The operation of this equipment is subject to the following two conditions:
(1) this device or device may not cause harmful interference, and (2) this
device or device must accept any interference, including interference that may
cause undesired operation.
ANATEL Statement
This equipment is not subject to protection from harmful interference and
may not cause interference with duly authorized systems.
Limited Warranty
This probe is warranted against defects in material and workmanship for one
year from the date of purchase from an authorized Fieldpiece dealer.
Fieldpiece will replace or repair the defective unit, at its option, 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
instrument.
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 instrument or other incidental or consequential
damages, expenses, or economic loss, or for any claim of such damage,
expenses, or economic loss.
State laws vary. The above limitations or exclusions may not apply to you.
Obtaining Service
For international customers, warranty for products purchased outside of the
U.S. should be handled through local distributors. Visit our website to find
your local distributor.
Designed in the USA
MADE IN TAWAN
© Fieldpiece Instruments, Inc 2021; v13
References
Read User Manual Online (PDF format)
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