Installation
Instructions
PT-0-1.5PSI-01, PT-0-3PSI-01, PT-0-5PSI-01,
and PT-0-10PSI-01
Pressure Transducers
|
|
WARNING – Maretron pressure transducers are not approved for use with gasoline.
If you wish to use the FPM100 to monitor pressures or levels of gasoline, you
must obtain a pressure transducer that is approved for use with gasoline. |
Instructions
Please follow these instructions to connect any of the PT-0-1.5PSI-01,
PT-0-3PSI-01, PT-0-5PSI-01, or PT-0-10PSI-01 pressure transducers to the NMEA
2000® network via a Maretron FPM100 Fluid Pressure Module. The
wiring diagram appears in Figure 1 below. The diagram shows a connection to
channel #0, but connections to other channels are similar.
1.
Please refer to the FPM100 User’s
Guide for detailed information on selecting a mounting location for the
pressure transducer.
2.
All Maretron pressure transducer
assemblies are equipped with a ¼” NPT male threaded fitting. Install the
pressure transducer to a ¼” NPT female fitting on the system or tank to be
monitored with a maximum torque of 133 to 177 in-lbs
(15 to 20 Nm). If you are monitoring a system where pressure spikes or
transients will occur, or where the pressure will exceed the maximum pressure
rating of the pressure transducer, install a Pressure Snubber (PT-SNUB-01) onto
the system being monitored first, then install the pressure transducer to the
female port on the pressure snubber.
3.
Connect the two wires of the
pressure transducer to a free pressure monitoring channel. Connect the white
wire from the pressure transducer to the positive (+) terminal of the channel,
and connect the brown wire from the pressure transducer to the negative (-)
terminal of the channel. The example in Figure 1 shows the pressure transducer
connected to switch channel 0 with the white wire connected to “P0+”, and the brown
wire connected to “P0-”. Pressure transducers of “Gauge” type allow atmospheric
pressure to the sensor through the connecting cable. Take care to not allow the end of the cable with the tinned wire leads
to be exposed to moisture, or the sensor may become damaged due to corrosion. If
the area where the end of the cable is located might have moisture present, the
use of 1) a waterproof junction box with cable glands and a PTFE vent or 2) a
desiccant cartridge is highly recommended. Running the cable through a cable
gland will not affect its ability to allow atmospheric pressure through the
cable into the sensor.
4.
Use a Maretron DSM150 or DSM250 display
(firmware 1.4.7 or higher) or the DSM250 viewing function of the Maretron
N2KAnalyzer software to configure the connected channel. Please refer to the
FPM100 User’s Manual for configuration details.
5.
Supply Power to the NMEA 2000
network and verify that the pressure channel indicates a valid pressure reading.
Figure 1 – Pressure Transducer Connection Diagram
Pressure
Transducer Mechanical Drawing
Pressure
Transducer Specifications
|
Part
Number |
Range |
Accuracy |
Type |
|
PT-0-1.5PSI-01 |
0 to 1.5
PSI (0.10 bar) |
±3% Full Scale |
Gauge |
|
PT-0-3PSI-01 |
0 to 3
PSI (0.21 bar) |
±2% Full Scale |
Gauge |
|
PT-0-5PSI-01 |
0 to 5
PSI (0.34 bar) |
±2% Full Scale |
Gauge |
|
PT-0-10PSI-01 |
0 to 10
PSI (0.69 bar) |
±1% Full Scale |
Gauge |
|
Specification |
Value |
|
Compatible Fluids / Gases |
Refrigerant, Motor Oil,
Diesel, Hydraulic Fluid, Brake Fluid, Water, Waste Water, Hydrogen, Nitrogen,
Air |
|
Operating Temperature |
-5°C to 60°C |
|
Media Temperature |
-25°C to 125°C |
|
Over Pressure Max |
29 PSI (2 bar) |
|
Construction |
1.4305 (303 Stainless
Steel), Thick Film on Ceramic Al2O3 (96 %) Sensor, FKM 70
Sh O-Ring |
|
Cable |
IP67, PVC (cable gland
PA6-3) |
|
Cable Length |
4.9 feet (1.5m) |
|
Vibration |
4 g (10 – 2000 Hz) |
|
Shock |
50 g/8 ms |
|
EMC Compatibility |
EN 61000-6-3, EN
61000-6-2 |
|
Humidity |
Max. 95% relative |
|
Weight |
110g |
For installation support, please contact:
Maretron
9014 N. 23rd
Ave #10
Telephone: (+1) 866-550-9100
E-mail:
support@maretron.com