Univex 5100-02-IT - Manual (Page 12)

Model 5100-02-IT Combustible Gas Sensor Module
Page: 10
4. INSTALLATION
NOTE
All IT modules are factory pre-configured and calibrated.
All modules are tagged to indicate the configuration including the sensor module number
Identify all components during unpacking and install using the factory configuration.
4.1 SENSOR MODULE LOCATIONS
Select locations for each sensor modules based on the following:
• Modules should be placed close to the potential source of gas.
• Modules should be placed in areas accessible for calibration.
• Sensors should be pointed down and the conduit should include an inverse trap to reduce moisture
(condensation) from accumulating in the electronics enclosure.
• Remote calibration fitting (5360-00) should be used to facilitate calibration gas delivery. Run
polyurethane tubing (1/4” O.D. x 1/8” I.D.) from fitting to an accessible location.
NOTE
Module must always be installed vertically with sensor pointing down.
4.2 WIRING (Figure 4-2 refers to Analog, Modbus and Sentry operation)
4.2.1 ANALOG 4-20 MA OPERATION
For a 3-Wire non-isolated connection, set jumpers, located on the bottom of the transmitter board, to the
lower position as illustrated in Figure 4.4. Verify that both jumpers are in the position marked by 3-wire.
When using a 3-wire connection, a minimum of an 18 AWG, 3 conductor shielded cable must be used. A
Figure 4 - 1: Typical Mounting Options