Keithley 2700 Service Manual

Calibration 2-23
5. Press SHIFT then TEST, then display TEST:CALIB with the up or down range key.
Press ENTER, select RUN, then enter the appropriate calibration code (default:
002700).
6. Using the up or down range key, select CARD at the CAL:RUN prompt, then press
ENTER.
7. Set the display value to the cold calibration temperature (˚C) you measured in Step 3,
then press ENTER to complete Model 7700 calibration.
Remote Model 7700 calibration
1. Connect the Model 7700 to the 7797 Calibration/Extender Board (see “Extender board
connections” above).
2. With the power off, install the Model 7700/7797 combination in Slot 1, and select the
rear inputs with the INPUTS switch. Allow three minutes for thermal equilibrium.
3. Accurately measure and record the cold temperature of the Model 7700 card surface at
the center of the card.
4. Press in and hold the Model 2700 OPEN key while turning on the power.
5. Enable calibration by sending the :CODE command. For example, the default com-
mand is:
:CAL:PROT:CODE 'KI002700'
6. Initiate calibration by sending the following command:
:CAL:PROT:CARD1:INIT
7. Calibrate the Model 7700 with the following command:
:CAL:PROT:CARD1:STEP0 <temp>
Here <temp> is the cold calibration temperature (˚C) measured in Step 3.
8. Send the following commands to save calibration and lock out calibration:
:CAL:PROT:CARD1:SAVE
:CAL:PROT:CARD1:LOCK

Keithley 2700 Specifications

General

Type	Digital Multimeter
Measurement Functions	DC Voltage, AC Voltage, DC Current, AC Current, Resistance, Frequency, Temperature
DC Voltage Range	100 mV to 1000 V
AC Voltage Range	100 mV to 750 V
Frequency Range	3 Hz to 500 kHz
Temperature Range	-200°C to +1372°C
Display	Vacuum Fluorescent Display
Connectivity	IEEE-488, RS-232
Channels	10
Power Supply	100V to 240V AC, 45Hz to 66Hz
DC Current Range	10 µA to 3 A
AC Current Range	10 µA to 3 A
Temperature Measurement	Thermocouple, RTD