Standard Sensor Connections - Ametek Thermox 2000 ATEX Series User Manual

Table 3-3.
Sensor connections.
Table 3-4.
Combustibles
connections.

Standard sensor connections

All WDG sensors, regardless of the sensor type, requires that you make
the following connections from the control unit to the sensor using twisted
pair cable (see Table 3-3).
CONTROL UNIT
LABEL
Cell +
Cell -
Furnace
15V COM
T/C +
T/C -
15V SPLY
15V SPLY
Combustibles connections
If you have a combustibles detector in your sensor, also make the following
connections between the control unit wiring card and the sensor board on
the sensor (H2 represents the hydrogen/carbon monoxide style of combus-
tibles detector. This detector can measure both CO and H2) - refer to Table
3-4.
CONTROL UNIT
LABEL
H2 Act +
H2 Act -
H2 REF +
H2 Ref -
SENSOR TERMINAL
NUMBER
1
(one pair)
2
3
(one pair)
4
5
(one pair)
6
12
(one pair)
12
SENSOR TERMINAL
NUMBER
7
(one pair)
8
9
(one pair)
10
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Installation 3-29