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Keithley 2750 User Manual

Keithley 2750
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Model 2750 Multimeter/Switch System User’s Manual Remote Operations 10-11
SRQ
You can program the instrument to generate a service request (SRQ) when one or more
errors or conditions occur. When this indicator is on, a service request has been generated.
This indicator stays on until the serial poll byte is read or all the conditions that caused
SRQ have been cleared. See Section 11, “Status Structure,” for more information.
LOCAL key
The LOCAL key cancels the remote state and restores local operation of the instrument.
Pressing the LOCAL key also turns off the REM indicator and returns the display to nor-
mal if a user-defined message was displayed.
If the LLO (Local Lockout) command is in effect, the LOCAL key is also inoperative.
For safety reasons, the OUTPUT key will still be active in LLO.
Programming syntax
The information in this section covers syntax for both common commands and SCPI com-
mands. For information not covered here, see the IEEE-488.2 and SCPI standards. See
Section 12 through Section 15 for more details on common and SCPI commands.
Command words
Program messages are made up of one or more command words.
Commands and command parameters
Common commands and SCPI commands may or may not use a parameter. The following
are some examples:
*SAV <NRf> Parameter (NRf) required
*RST No parameter used
SYSTem:BEEPer <b> Parameter <b> required
SYSTem:PRESet No parameter used
NOTE At least one space between the command word and the parameter is required.
Brackets [ ] — Some command words are enclosed in brackets ([ ]). These brackets are
used to denote an optional command word that does not need to be included in the pro-
gram message. For example:
INITiate[:IMMediate]
2750-900-01.book Page 11 Wednesday, August 3, 2011 7:56 AM

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Keithley 2750 Specifications

General IconGeneral
InterfaceGPIB, RS-232, Ethernet
Switching SpeedUp to 500 channels/second
Maximum Voltage300V
Operating Temperature0°C to 50°C
Measurement FunctionsDCV, ACV, DCI, ACI, 2-wire Resistance, 4-wire Resistance, Frequency, Temperature
Resolution6.5 digits
Current1A
Maximum Current1A

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