Keithley TEC SourceMeter 2510, Service Manual, Page: 51 / 120

2-24 Calibration Models 2510 and 2510-AT
4. With the 1
Ω
resistor still connected, send the following command to calibrate the cur-
rent protection DAC:
:CAL:PROT:IPD
5. Send this command to turn off the output:
:OUTP OFF
6. Disconnect the 1
Ω
resistor from the OUTPUT terminals.
Step 4: Temperature calibration
1. Connect the 100
Ω
resistor to the Model 2510 INPUT terminals, as shown in Figure 2-3.
2. Send the following command to select the thermistor type temperature sensor:
:SENS:TEMP:TRAN THER
3. Send the following command to enable 4-wire sensing:
:SYST:RSEN ON
4. Send this command to select the 100
Ω
resistance range:
:SENS:TEMP:THER:RANG 100
5. Send the following command with the characterized 100
Ω
resistance value as the
parameter to calibrate the 100
Ω
range:
:CAL:PROT:SENS:TEMP <Resistance_Value>
6. Short the INPUT terminals with clean copper wire (Figure 2-4). Allow one minute for
thermal equilibrium, then send this command:
:CAL:PROT:SENS:TEMP 0
7. Connect the 1k
Ω
resistor to the Model 2510 INPUT terminals (Figure 2-3).
8. Send this command to select the 1k
Ω
resistance range:
:SENS:TEMP:THER:RANG 1e3
9. Send the following command with the characterized 1k
Ω
resistance value as the param-
eter to calibrate the 1k
Ω
range:
:CAL:PROT:SENS:TEMP <Resistance_Value>
10. Short the INPUT terminals with clean copper wire (Figure 2-4). Allow one minute for
thermal equilibrium, then send this command:
:CAL:PROT:SENS:TEMP 0
11. Connect the 10k
Ω
resistor to the Model 2510 INPUT terminals (Figure 2-3).
12. Send this command to select the 10k
Ω
resistance range:
:SENS:TEMP:THER:RANG 1e4
13. Send the following command with the characterized 10k
Ω
resistance value as the
parameter to calibrate the 10k
Ω
range:
:CAL:PROT:SENS:TEMP <Resistance_Value>
14. Short the INPUT terminals with clean copper wire (Figure 2-4). Allow one minute for
thermal equilibrium, then send this command:
:CAL:PROT:SENS:TEMP 0
15. Connect the 100k
Ω
resistor to the Model 2510 INPUT terminals (Figure 2-3).
2510-902-01 (E - Mar 2010)(Service).book Page 24 Tuesday, March 16, 2010 1:04 PM