Wavelength Electronics LFI-3751, User Manual

Page: 63 / 132

63
Chapter 2 - Front Panel Operation
Measuring Auxiliary Thermistor Temperature
Measuring Auxiliary Thermistor Temperature
This sensor input is available to monitor the temperature of an auxiliary zone
(e.g. heatsink or ambient). It is calibrated to the TCS-610 10 k
Ω
thermistor
and uses a 100
µ
A bias current. The temperature range of this sensor is
-8°C to +150°C. Only temperature can be displayed.
1. Wiring the Output Connector
Wire the thermistor to the output connector on the rear panel.
1
9
4
3
10 k
Ω
Thermistor
(Wavelength
part number TCS-610
Auxiliary Sensor)
P ACT T
LIM I
AUX T
TE V
SET T
TE I
B
C
I
A
D
°
C
2. Displaying Auxiliary Temperature
•
Rotate the Display Select Switch to AUX T ( Shift Button OFF ) to
display the auxiliary sensor temperature.
•
The decimal point position changes automatically to display maximum
resolution.
•
If not installed, four dashes will be displayed “----”.
•
RS-232 Command: [AUX T]
Display Auxiliary Temperature
Display Resolution:
-199.9
-19.99
100.0
to
to
to -20.0°C
99.99°C
199.9°C
2