Lake Shore Model 218 Temperature Monitor User’s Manual
Installation
3-7
3.3.3 Terminal Block (Model 218S only)
The terminal block on the Model 218S rear panel contains signals for analog outputs and alarm
relays. The terminal block connectors are detachable; remove the top or bottom half from the
instrument for convenient wire installation. Use up to 12 AWG stranded copper wire with the
terminals. Smaller wire is suitable for most applications. See Figure 3-4.
F-218-3-4.eps
PIN DESCRIPTION PIN DESCRIPTION
1
Relay 1 NC
15
Relay 5 NC
2
Relay 1 COM
16
Relay 5 COM
3
Relay 1 NO
17
Relay 5 NO
4
Relay 2 NC
18
Relay 6 NC
5
Relay 2 COM
19
Relay 6 COM
6
Relay 2 NO
20
Relay 6 NO
7
Relay 3 NC
21
Relay 7 NC
8
Relay 3 COM
22
Relay 7 COM
9
Relay 3 NO
23
Relay 7 NO
10 Relay 4 NC
24
Relay 8 NC
11 Relay 4 COM
25
Relay 8 COM
12 Relay 4 NO
26
Relay 8 NO
13 Analog 1 Signal
27
Analog 2 Signal
14 Analog 1 Gnd
28
Analog 2 Gnd
Figure 3-4. Terminal Block Connectors