Keithley 2520 Service Manual page 64

2-34 Calibration
Table 2-13 (continued)
Remote current measurement calibration currents and commands
Channel Current range Test resistor*
Detector 1 100mA
Detector 2 10mA
20mA
* Nominal values shown. Calculate actual current from characterized resistance and DMM voltage reading: I = V/R.
Model 2520 Pulsed Laser Diode Test System Service Manual
Calibration
currents*
200Ω
-100mA
0mA
0mA
+100mA
2kΩ
-10mA
0mA
0mA
+10mA
1kΩ
-20mA
0mA
0mA
+20mA
Calibration commands*
:SENS2:CURR:RANG 100e-3
:SOUR1:FUNC:SHAP DC
:SENSE2:CURR:POL POS
:SOUR2:VOLT -20
:CAL:PROT:SENS2 <Current>
:SOUR2:VOLT 0
:CAL:PROT:SENS2 <Current>
:SENSE2:CURR:POL NEG
:CAL:PROT:SENS2 <Current>
:SOUR2:VOLT 20
:CAL:PROT:SENS2 <Current>
:OUTP1 OFF
:OUTP1 ON
:SENS3:CURR:RANG 10e-3
:SOUR1:FUNC:SHAP DC
:SENSE3:CURR:POL POS
:SOUR3:VOLT -20
:CAL:PROT:SENS3 <Current>
:SOUR3:VOLT 0
:CAL:PROT:SENS3 <Current>
:SENSE3:CURR:POL NEG
:CAL:PROT:SENS3 <Current>
:SOUR3:VOLT 20
:CAL:PROT:SENS3 <Current>
:SENS3:CURR:RANG 20e-3
:SOUR1:FUNC:SHAP DC
:SENSE3:CURR:POL POS
:SOUR3:VOLT -20
:CAL:PROT:SENS3 <Current>
:SOUR3:VOLT 0
:CAL:PROT:SENS3 <Current>
:SENSE3:CURR:POL NEG
:CAL:PROT:SENS3 <Current>
:SOUR3:VOLT 20
:CAL:PROT:SENS3 <Current>