Keithley TEC SourceMeter 2510, User Manual

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3-18 Basic Operation Models 2510 and 2510-AT User’s Manual
Temperature sensors
Open and shorted lead status indications
For temperature measurements only, Open Lead and Shorted Lead status indications iden-
tify when a sensor lead is open or shorted. The front panel will display “Open Lead” or
“ShrtLead” where appropriate. The conditions for open and shorted lead are summarized
in
Table 3-10 .
Solid-state sensor restrictions
I-SS and V-SS temperature sensors cannot be selected with the resistance function active.
The resistance function is intended for use only with thermistor and RTD sensors.
Thermistor sensor ranges
Available thermistor sensor ranges are 100
Ω
, 1k
Ω
, 10k
Ω
, and 100k
Ω
. For optimum accu-
racy, use the appropriate range for your sensor. The Model 2510 will display URR (Under
Resistance Range) or ORR (Over Resistance Range) if the sensor resistance is outside the
optimum range.
RTD sensor ranges
Available RTD sensor ranges are 100
Ω
and 1000
Ω
. Use the appropriate range for your
sensor to optimize accuracy.
Table 3-10
Sensor open lead and shorted lead ranges
Sensor Open lead Shorted lead
Thermistor
RTD
V-SS
I-SS Temp. < -50°C
Temp. > 250°C
Temp. < -50°C
Temp. < -50°C Temp. > 250°C
Temp. < -50°C
-0.001V to +0.001V
Temp. > 250°C