Keithley DMM7510 Reference Manual

Section
8: TSP command reference Model DMM7510 7½ Digit Graphical Sampling Multimeter Referenc
e Manual
8-168 DMM7510-901-01 Rev. B / May 2015
dmm.measure.math.format
This attribute specifies which math operation is performed on measurements when math operations are enabled.
Type TSP-Link accessible Affected by Where saved Default value
Attribute (RW) Yes
Restore configuration
Instrument reset
Power cycle
Measure configuration list
Configuration script
Measure configuration list
dmm.MATH_PERCENT
Usage
operation = dmm.measure.math.format
dmm.measure.math.format = operation
operation
Math operation to be performed on measurements:
• y = mx+b: dmm.MATH_MXB
• Percent: dmm.MATH_PERCENT
• Reciprocal:
dmm.MATH_RECIPROCAL
Details
This specifies which math operation is performed on measurements for the selected measurement
function.
You can choose one of the following math operations:
• y = mx+b: Manipulate normal display readings by adjusting the m and b factors.
• Percent: Displays measurements as the percentage of deviation from a specified reference constant.
• Reciprocal: The reciprocal math operation displays measurement values as reciprocals. The displayed
value is 1/X, where X is the measurement value (if relative offset is being used, this is the measured
value with relative offset applied).
Math calculations are applied to the input signal after relative offset and before limit tests.
Example
dmm.measure.func = dmm.FUNC_DC_VOLTAGE
dmm.measure.math.format = dmm.MATH_RECIPROCAL
dmm.measure.math.enable = dmm.ON
Enables the reciprocal math operation on
voltage measurements.
Also see
Calculations that you can apply to measurements (on page 3-7)
dmm.digitize.math.format (on page 8-103)
dmm.measure.math.enable (on page 8-167)

Keithley DMM7510 Specifications

General

Resolution	7.5 digits
DC Voltage Range	100 mV to 1000 V
AC Voltage Range	100 mV to 750 V
DC Current Range	10 µA to 10 A
Resistance Range	10 Ω to 1 GΩ
Sampling Rate	1 MS/s
Memory	27.5 million readings
Display	5 inch capacitive touchscreen
AC Voltage Accuracy	±0.06% of reading
AC Current Range	10 A
Connectivity	USB, LAN, GPIB