Lakeshore 332 User Manual page 81

Analog Output In Input Mode (Continued)
Bipolar mode refers to whether or not negative voltages are used, as shown below.
Bipolar Mode: On Bipolar Mode: On
Input Mode Input Mode
Bipolar Mode: Off Bipolar Mode: Off
For this first example we will choose Bipolar Mode On. Press the Enter key.
The –10 V value is entered using the numeric keypad, which includes the numbers 0 – 9, +/–, and
decimal point. For this example, we will enter 0 K. Press the Enter key.
The +10 V value is entered using the numeric keypad, which includes the numbers 0 – 9, +/–, and
decimal point. For this example, we will enter 100 K. Press the Enter key. You are returned to the
normal display.
The analog output will now correspond to the input temperature as shown below. For example, if the
actual reading was 50 K, the analog output would be at 0 V (middle of the scale).
Bipolar Mode: On Bipolar Mode: On
If we repeat the same procedure using all the same settings, but select Bipolar Mode Off, the output
would be as shown below. In this case, if the actual reading was 50 K, the analog output would be
+5 V (middle of the scale).
Bipolar Mode: Off Bipolar Mode: Off
Operation
Lake Shore Model 332 Temperature Controller User's Manual
Lowest
–10 V
Lowest
0 V
Enter for AnOut
-10V Value
Enter for AnOut
+10V Value
0 K
–10 V
0 K
0 V
Input
Middle
0 V
Output
Input
Middle
+5 V
Output
0½
100½
Input
50 K
0 V
Output
Input
50 K
+5 V
Output
Highest
+10 V
Highest
+10 V
100 K
+10 V
100 K
+10 V
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