Dwyer 8B User Manual
Page 6
Page 6
WIRING
Do not run thermocouple or other class 2 wiring in the same conduit as power leads. Use
only the type of thermocouple or RTD probe for which the control has been programmed.
Maintain separation between wiring of sensor, auxiliary in or out, and other wiring. See the
Initial Setting Menu for input selection.
For thermocouple input always use extension leads of the same type designated for your
thermocouple.
For supply connections use No. 16 AWG or larger wires rated for at least 75˚ C. Use
conductors only. All line voltage output circuits must have a common disconnect and be
connected to the same pole of the disconnect.
Input wiring for thermocouple, current, and RTD; and output wiring for current 14 VDC is
rated CLASS 2.
Control wiring as show below:
Terminal Identification
32B
16B
140VDC
OR
4-20MA
OR
0-10V
-
+
OUT1
NO
COM
1
6
11
EV2
EV1
L
CT
N
AC 100-24OV
50/60 HZ
5VA
12
2
7
RTD
SG
3
8
+
+
-
-
Tc
13
OUT2
DATA-
4
9
5 10
RS-485
DATA+
14
15
COM
3A
250VAC
ALM1
3A
250VAC
AC, Event / CT Input
AC, No Event / CT Input
AC
DC
DC, No Event/CT Input