Installation and operation instructions US-EN
24 DRYPOINT
®
M intelligence
4.4. Connection of power cable to power supply board
The connection of the power supply is made at the factory and is therefore not required.
Terminal assignment:
4.5. Connection of 4 ... 20 mA interface to control unit PCB
The 4 ... 20 mA interface is used for the output of the currently measured pressure dew point (depending on operating
mode).
4 mA ≙ -55 °F
20 mA ≙ +77 °F
Intervals: 0.9 °F
Output value in case of an error: 24 mA
Connect the 4 ... 20 mA interface according to the terminal assignment chart below:
4.6. Connection of oating contact to control unit PCB
This contact is used for alarm output signals. Connect the oating contact according to the terminal assignment chart
below:
5. Commissioning
After the unit has been integrated into the piping system and all electrical connections have been established, it can be
commissioned. To do this, connect the power plug to the power mains and slowly pressurize the pipeline system.
At the start of the commissioning process, the red warning LED might be lit, as it normally takes a few minutes until the set
drying level is reached. Should the red warning LED continue to be lit, refer to “Troubleshooting and repair“ on page 32.
X1.1 = N / -
X1.2 = L / +
X4.4 = - (recommended)
X4.5 = + (recommended)
X4.1 = n.o.
X4.2 = com
X4.3 = n.c.
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