Fluke 5520A - Page 261

Remote Commands
Commands
6
6-57
Example: WAVE? returns SQUARE,NONE
Returns SQUARE when the ac primary output (Calibrator front panel NORMAL
terminals) is a square wave and NONE when there is no secondary output on the front
panel AUX terminals.
ZCOMP
Overlapped CoupledIEEE-488 RS-232 Sequential
xx xxx
(Impedance Compensation command) Activates or deactivates 2-wire or 4-wire
impedance compensation. For resistance output, compensation is allowed when the
resistance is less than 110 kΩ. For capacitance output, compensation is allowed when the
capacitance is equal to or greater than 110 nF. For all other resistances and capacitances,
the compensation is NONE and attempts to use other parameters results in the error
message “Can’t change compensation now.” For RTD temperature simulation,
compensation is allowed for all temperatures.
Parameter: NONE (Turns off impedance compensation circuitry)
WIRE2 (Turns on the 2-wire impedance compensation circuitry)
WIRE4 (Turns on the 4-wire impedance compensation circuitry)
Example: ZCOMP WIRE2
Set 2-wire impedance compensation for the Calibrator UUT connection. (Resistance if
the ohms value is less than 110 kΩ, capacitance if the farads value is 110 nF or more, or
RTD temperature simulation, any value.)
ZCOMP?
Sequential Overlapped
Coupled
IEEE-488 RS-232
x x xx
x
(Impedance Compensation query) Returns status of 2-wire or 4-wire impedance
compensation.
Responses: NONE (impedance compensation is turns off)
WIRE2 (2-wire impedance compensation is on)
WIRE4 (4-wire impedance compensation is off)
Example: ZCOMP? returns NONE
Returns NONE when no impedance compensation is applied to the resistance,
capacitance or RTD output.
ZERO_MEAS
Sequential Overlapped
Coupled
IEEE-488 RS-232
x x xx
x
(Zero Offset for Pressure Measurement command) Zeros the pressure module or sets the
zero offset for capacitance measurement using the -SC600. For pressure measurments, if
the pressure module is an absolute module, the reference parameter must be supplied
along with optional units as the second argument.
Parameter: 1. (boolean) ON
(boolean) OFF
2. Reference value for absolute pressure modules