Lake Shore Model 218 Temperature Monitor User’s Manual
3-4
Installation
3.3.2 Sensor
Inputs
This section covers Sensor Input Connector and Pinout in Paragraph 3.3.2.1, Sensor Lead Cable in
Paragraph 3.3.2.2, Grounding and Shielding Sensor Leads in Paragraph 3.3.2.3, Sensor Polarity in
Paragraph 3.3.2.4, Four-Lead Sensor Measurement in Paragraph 3.3.2.5, Two-Lead Sensor
Measurement in Paragraph 3.3.2.6, and Lowering Measurement Noise in Paragraph 3.3.2.7.
3.3.2.1
Sensor Input Connector and Pinout
This paragraph details how to connect sensors to the Model 218 inputs. The sensor inputs operate
with most resistive and diode sensors. Refer to Paragraph 4.5 to configure inputs for a sensor type
with software.
Disable unused sensor inputs with the Input Type key (Paragraph 4.5). It is possible for an overload
condition on one sensor to affect the reading on another in the same connector. Wire redundant
sensors in separate connectors for best reliability. Split fewer than eight sensors evenly between
connectors for best reading efficiency.
F218-3-3.bmp
Input Connector (Inputs 1-4)
Input Connector (Inputs 5-8)
PIN DESC. PIN DESC. PIN DESC. PIN DESC.
1 NC
1 NC
2 S 14 S 2 S 14 S
3 1I+ 15 1I- 3 5I+ 15 5I-
4 1V+ 16 1V- 4 5V+ 16 5V-
5 S 17 S 5 S 17 S
6 2I+ 18 2I- 6 6I+ 18 6I-
7 2V+ 19 2V- 7 6V+ 19 6V-
8 S 20 S 8 S 20 S
9 3I+ 21 3I- 9 7I+ 21 7I-
10 3V+ 22 3V- 10 7V+ 22 7V-
11 S 23 S 11 S 23 S
12 4I+ 24 4I- 12 8I+ 24 8I-
13 4V+ 25 4V- 13 8V+ 25 8V-
Figure 3-3. Model 218 Input Connector Pinouts
(S = Shield, NC = No Connect)
Summary of Contents for 218S
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