PressureMAT User Guide
Revision 1
Page 20/29
2. Using the System
2.1. System Setup
1. Connect the pressure sensor cables to the back panel. If a pressure sensor is not connected
when power is supplied to the system, the pressure will go to a value greater than 5.3 bar and
an high pressure alarm condition will occur on the respective channel(s). If a sensor is
inadvertently disconnected during a process and stops monitoring pressure, there will be an
alarm notification. The associated relay will switch and the analog output will send 20mA.
2. Connect the analog and relay outputs, if required as shown in Section 1.2.1
3. Connect the pressure sensor(s) to the cable(s) connected to the system.
4. Connect system to appropriate power source.
Note: If a pressure sensor is not connected when power is supplied to the system, the
pressure will go to a value greater than 75 psi / 5.17 bar and a high pressure alarm condition
will occur on the respective channel(s) and the relay will switch to the alarm position and the
analog output will send 20mA. If a sensor is inadvertently disconnected during a process and
stops monitoring pressure, there will be an alarm notification. Also, a new sensor that has
not been zero-calibrated can bypass an alarm set-point triggering an alarm condition.
5. Using the instructions from the previous section 1.2.3 and while the sensor(s) is at atmospheric
pressure, zero calibrate the sensor(s) being used (if not reading 0.0 psi / 0.00 bar when
installed) by pressing the LEFT ARROW button with the proper channel selected.
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