CALibration Subsystem

Note

Read the calibration procedure before calibrating. Improper calibration can reduce accuracy and reliability.

CALibration:ADC?

CALibration[:ALL]?

CALibration:COUNt?

CALibration:DATE?

CALibration:SECure:CODE

CALibration:SECure:STATe

CALibration:STORe

CALibration:STRing

CALibration:TEMPerature?

CALibration:TIME?

CALibration:VALue

CALibration:ADC?

Performs a low-level calibration of the ADC (analog-to-digital converter) circuitry.

Note

You must unsecure the instrument to calibrate it or to change the calibration code or security code.

Parameter Typical Return
(none) 0 (successful) or 1 (unsuccessful)
Calibrate the ADC:

CAL:ADC?

CALibration[:ALL]?

Performs a calibration using the calibration value based on the function and range (CALibration:VALue). A short must be applied for the resistance and voltage measurement functions, and the inputs must be open for the current measurement functions.

Note

You must unsecure the instrument to calibrate it or to change the calibration code or security code.

Parameter Typical Return
(none) +0 (pass) or +1 (fail)
Perform a zero calibration of the ACV measurement function and return a pass/fail indication:

CONF:VOLT:AC
CAL:SEC:STAT OFF,MY_CAL_CODE
CAL:VAL 0.0
CAL?
CAL:STOR
CAL:SEC:STAT ON

CALibration:COUNt?

Returns the calibration count. Read and record the initial count when you first receive your instrument.

Parameter Typical Return
(none) +117
Return the calibration count:

CAL:COUN?

See Also

SYSTem:SECurity:COUNt?

CALibration:DATE?

Returns the date of the last calibration in the format yyyy,mm,dd.

Parameter Typical Return
(none) 2014,4,26
Return the calibration date:

CAL:DATE?

See Also

SYSTem:DATE

SYSTem:TIME

CALibration:SECure:CODE <new_code>

Sets the security code (calibration password) to prevent unauthorized calibrations.

Note

You must unsecure the instrument to calibrate it or to change the calibration code or security code.

Parameter Typical Return
Unquoted string up to 12 characters
Must start with letter (A-Z)
May contain letters, numbers (0-9) and underscores
(none)
Set new security code (calibration password):

CAL:SEC:STAT OFF,OLD_CAL_CODE
CAL:SEC:CODE TST_DUT165
CAL:SEC:STAT ON

CALibration:SECure:STATe {ON|1|OFF|0}[, <code>]
CALibration:SECure:STATe?

Unsecures or secures the instrument for calibration.

Note

You must unsecure the instrument to calibrate it or to change the calibration code or security code.

Parameter Typical Return
{ON|1|OFF|0}. Default: ON. 0 (OFF) or 1 (ON)

Unsecure calibration:

CAL:SEC:STAT OFF,MY_CODE_272

Secure calibration:

CAL:SEC:STAT ON

CALibration:STORe

Takes calibration constants in volatile memory (CALibration:ALL?), and places them in nonvolatile memory, where they are not changed by cycling power, *RST, or SYSTem:PRESet. Do this at the end of calibration to avoid losing changes.

Note

You must unsecure the instrument to calibrate it or to change the calibration code or security code.

Parameter Typical Return
(none) (none)

Store calibration constants into non-volatile memory:

CAL:STOR

CALibration:STRing "<string>"
CALibration:STRing?

Stores a message in calibration memory. Common messages include the last calibration date, calibration due date, or calibration department contact information. You can perform this query regardless of whether the instrument is secured.

Note

You must unsecure the instrument to calibrate it or to change the calibration code or security code.

Parameter Typical Return
Quoted string up to 40 characters
May contain letters, numbers, spaces, and other common characters.
"FOR CAL HELP, CALL JOE AT EXT 1234"
(If no string stored, returns "")
CAL:STR "FOR CAL HELP, CALL JOE AT EXT 1234"

CALibration:TEMPerature?

Returns the temperature of the last calibration in °C.

Parameter Typical Return
(none) +2.42850208E+001
Return the calibration temperature:

CAL:TEMP?

CALibration:TIME?

Returns the amount of time since the last calibration in the format hh,mm,ss.sss.

Parameter Typical Return
(none) 20,15,30.000
Return the calibration time:

CAL:TIME?

See Also

SYSTem:TIME

SYSTem:DATE

CALibration:VALue <value>
CALibration:VALue?

Specifies the value of the applied calibration signal.

Note

You must unsecure the instrument to calibrate it or to change the calibration code or security code.

Parameter Typical Return
Numeric, default 0.0 +2.37000000E-02

Specify calibration value 0.0237:

CAL:VAL 2.37E-2