Lake Shore Model 331 Temperature Controller User’s Manual
3.3
REAR PANEL DEFINITION
This paragraph provides a description of the Model 331 rear panel connections. The rear panel consists
of the line input assembly, RS-232 Connector, HEATER OUTPUT Connector, INPUT A and B Sensor
Input Connectors, the RELAY and ANALOG OUTPUT Terminal Block, and the IEEE-488 INTERFACE
Connector. Please read the entire chapter before performing the initial setup and system checkout
procedure in Paragraph 3.10. Rear panel connector pin-out details are provided in Paragraph 8.4.
CAUTION:
Verify AC Line Voltage shown in the fuse holder window is appropriate for the intended
AC power input. Also remove and verify the proper fuse is installed before plugging in and
turning on the instrument.
CAUTION:
Always turn off the instrument before making any rear panel connections. This is especially
critical when making sensor to instrument connections.
60V MAX
60V MAX
120
RS-232 (DTE)
100/120V
220/240V
1.60 A T 250V
0.80 A T 250V
100/120/220/240 V
10% +6% Voltage
50-60 Hz 120 VA MAX
5×20mm
5×20mm
IEEE-488 INTERFACE
SH1 AH1 T5 L4 SR1 RL1 PP0 DC1 DT0 C0 E1
RELAYS 30VDC 5A
RELAY 1 RELAY 2
NC
NO
+
ANALOG
OUTPUT
COM
NC
NO
COM
HEATER OUTPUT
HI
LO
GND
1
2
3
4
5
6
INPUT A
I+
V+
I
V
INPUT B
I+
V+
I
V
NO USER SERVICEABLE PARTS
INSIDE. REFER SERVICING TO
TRAINED SERVICE PERSONNEL
WARNING
!
!
F-331-3-1.eps
Description Details
Line Input Assembly
Paragraph 3.4
Figure 8-1
RS-232 (DTE) 9 pin D-Style Connector
Paragraph 6.2.1
Figure 8-5
HEATER OUTPUT and Ground Banana
Jacks
Paragraph 3.7
Figure 8-3
INPUT A and INPUT B Sensor (or
Thermocouple) Input Connectors
Paragraphs 3.5
and 3.6
Figure 8-2
RELAYS and ANALOG OUTPUT Terminal
Block (Model 331S Only)
Paragraphs 3.8
and 3.9
Figure 8-4
IEEE-488 INTERFACE Connector
(Model 331S Only)
Paragraph 8.4.2
Figure 8-6
Figure 3-1. Model 331 Rear Panel
3-2
Installation
