Installation; Ntroduction; Installing The Control Unit - Delta DE212 Installation Manual

2. I
NSTALLATION
2.1 I

NTRODUCTION

The CU212 DP control unit is designed to monitor the DP Gauge modified by a switch or a sensor.
The control unit is available in two versions:
a) Art.no. 02358, prepared for reading of a DP reed switch NO or NC.
b) Art.no. 02865, prepared for reading of a DP proximity sensor or mechanical reed switch NO or NC.
2.2 I C
NSTALLING THE ONTROL
The control unit should normally be placed in the drivers cabin. It must be installed outside EX area. Make sure
that the control unit is easy accessible for service.
The control unit CU212-1S, has two cable glands. One is for the input signal from the deadman handle, the
second is for input power and for output and input signals.
It is recommended to use 0,5 to 0,75mm2 cable, and to use soft and multicore cables.
When connecting the cables, take off the two connectors, from the printed circuit board, and connect the
cables to the connectors while they are free to move and easy to keep in the right position.
When all cables are connected, replace the connectors to the printed circuit board and fasten the front panel
to the bottom section.
The installation of the control unit is now finished.
The cable used for the deadman handswitch is normally a coiled cable, witch can be stretched to about 14m.
Normally on an installation, the coiled cable is connected to a connection box, positioned at a central place of
the dispenser, where the operator can reach all the needed positions by stretching the coiled cable. The cable
between the control unit and the connection box is not a part of the delivery.
D RC AS
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Installation Manual for CU220 DP
Page 4 of 12
Document: 02974