Keithley 2700 Service Manual

Calibration Reference B-17
:CODE
(:CALibration:PROTected:CODE)
Purpose To program the calibration code or password so that you can perform the
Model 7700 calibration procedures.
Format :cal:prot:code '<char_string>'
Parameter Up to a 8-character string including letters and numbers.
Description The :CODE command enables the Model 2700 calibration procedures
when performing these procedures over the bus. This command must be
sent to the unit before sending any other Model 7700 calibration command.
The default calibration code is KI002700.
NOTES The :CODE command should be sent only once before performing calibration. Do
not send :CODE before each calibration step.
The code parameter must be enclosed in single quotes.
Example :CAL:PROT:CODE 'KI002700' Send default code of KI002700.
:COUNt?
(:CALibration:PROTected:CARD1:COUNt?)
(:CALibration:PROTected:CARD2:COUNt?)
Purpose To determine how many times a Model 7700 has been calibrated.
Format :cal:prot:card1:coun?
:cal:prot:card2:coun?
Response <n> Calibration count.
Description The :CARD1:COUNt? and :CARD2:COUNt? commands allow you to
determine how many times a Model 7700 in Slot 1 and Slot 2 respectively
has been calibrated.
NOTE Use the :COUNt? command to help you monitor for unauthorized calibration
procedures.
Example :CAL:PROT:CARD1:COUN? Request card 1 calibration count.

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