Keithley DMM6500 User Manual

Section
2: Performance verification DMM6500 6½-Digit Multimeter with Scanning
Calibration and Adjustment Manual
2-38 DMM6500-905-01 Rev. E June 2021
Verify ac current on the 100 µA to 3 A ranges
To verify ac current accuracy, you will:
• Apply accurate voltages from the Fluke 5720A or 5730A multifunction calibrator to the DMM6500
front-panel terminals.
• Verify that the displayed readings fall within specified limits.
Use the values in the following tables to verify the performance of the DMM6500. Actual values
depend on the published specifications (see
Example reading limit calculation (on page 2-4
)).
To verify ac current accuracy:
1. On the DMM6500, press the FUNCTION key and select AC Current.
2. Press the HOME key.
3. Set the range you are verifying.
4. Press the MENU key.
5. Under Measure, select Settings.
6. Make sure that Detector Bandwidth is set to 30 Hz.
AC current is specified for the detector bandwidth setting of 3 Hz. 3 Hz measures accurately for input
signals from 3 Hz to 10 kHz, with reading rates of ≈ 0.5 readings/s. To improve verification
throughput to ≈ 3.3 readings/s, set detector bandwidth to 30 Hz for frequencies of 30 Hz to 10 kHz.
To verify frequencies 1 kHz and higher, set the detector bandwidth to 300 Hz for faster ≈ 55
readings/s throughput.

Keithley DMM6500 Specifications

General

Resolution	6.5 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
AC Current Range	10 µA to 10 A
Temperature Range	-200 °C to 1820 °C
Display	5-inch capacitive touch screen
Resistance Range	100 MΩ
Frequency Range	3 Hz
Sampling Rate	1 MS/s
Connectivity	USB, LAN, GPIB (optional), TSP-Link
Memory	7 million readings