Wavelength Electronics LFI-3751, User Manual

Page: 50 / 132

P ACT T
LIM I
AUX T
TE V
SET T
TE I
B
C
I
A
D
decrease
increase
Adjust C
Enter Offset [C1]
Chapter 2 - Front Panel Operation
Controlling Temperature with an LM335
50
5. Entering Data Point - C
•
Rotate the Display Select Switch to C ( Shift Button ON ) to
display the Offset in mV. For the LM335, Offset is 0 mV.
•
Rotate the Digi-Pot Adjust Knob to change the value.
Default from the factory sets up for a 0 mV offset.
•
A, B, and C cannot be adjusted while the output is on.
•
Data pairs A , B , and C are saved in non-volatile memory.
•
RS-232 Command: [C1] = Offset
Display Resolution:
Offset -9.99 to 9.99 mV
P ACT T
LIM I
AUX T
TE V
SET T
TE I
B
C
I
A
D
°
C
SHIFT
6. Displaying Actual LM335 Temperature
•
Rotate the Display Select Switch to ACT T ( Shift Button
OFF ) to display the LM335 temperature.
•
RS-232 Command: [ACT T]
-199.9
-19.99
100.0
to
to
to -20.0°C
99.99°C
199.9°C
Display Actual LM335
Temperature
Display Resolution:
7. Adjusting LM335 Temperature Setpoint
•
Rotate the Display Select Switch to SET T (Shift Button
OFF) . Temperature will be displayed.
•
To adjust the setpoint, rotate the Digi-Pot Adjust Knob .
While the knob is rotating, the display will change, but the
instrument will not control to the new setpoint until the
knob stops moving.
•
The decimal point will move to display maximum resolution.
•
SET T is saved in non-volatile memory.
•
RS-232 Command: [SET T]
P ACT T
LIM I
AUX T
TE V
SET T
TE I
B
C
I
A
D
°
C
decrease
increase
Display Setpoint Temperature