Fluke 8842a Performance Test, Frequency Range Minimum Required Accuracy All Ranges

8842A

Instruction Manual

AC Calibrator Fluke 5700A and Fluke 5725A

Minimum Required Accuracy (By Range)

Frequency Range

1, 10, 100 mV1

1, 10, 100V2

1000V2

20 Hz – 30 Hz	.1 + .005	.1 + .005	.12	+ .005
30 Hz – 20 kHz	.02 + 10	0.2 + .002	.04	+ .004
20 kHz – 50 kHz		.05 + .005		+ .005
	.05 + 20		.08
50 kHz – 100 kHz		.05 + .005		+ .01
	.05 + 20		.1
1. ±(% of setting + μV) 2. +/-(% of setting + % of range)
AC Current Source		Fluke 5700A

Frequency Range

Minimum Required Accuracy (All Ranges)

30 Hz – 1 kHz 1kHz – 5 kHz

±.07% + 1 mA)

±(.07% + 1 mA) X frequency in kHz

Shorting Bar

6-Inch Jumper

Optional Test Equipment

Resistance <1.5 mΩ	Pomona MDP-S-0
Construction Soldered (not
rivetted)
----	E-Z-Hook 204-6W-S or equivalent

9010A, 9005A or Micro-System Troubleshooter; 9000A-8048 Interface Pod.

6-2. PERFORMANCE TEST

This test compares the performance of the 8842A with the specifications given in Section

1.The test is recommended as an acceptance test when the instrument is first received, and as a verification test after performing the calibration procedure. If the instrument does not meet the performance test, calibration or repair is needed.

To ensure optimum performance, the test must be performed at an ambient temperature of 18°C to 28°C, with a relative humidity of less than 75%. Also, the 8842A should be allowed to warm up for one hour prior to beginning any test other than the self-test.

6-3. Diagnostic Self-Tests

The diagnostic self-tests check the analog and digital circuitry in the 8842A. There are 21 analog tests followed by in-guard program memory, calibration memory, and display tests. Out-guard program memory is tested when self-test is initiated by a remote command. Microcomputer RAM tests are done only at powerup. Each test is described in detail under the heading Troubleshooting. All five digital tests are performed at powerup.

NOTE

The inputs must be left open-circuited while the self-tests are performed. Otherwise, the 8842A may indicate errors are present. Errors may also be caused by inductive or capacitive pick-up from long test leads.

If the FRONT/REAR switch is in the REAR position, the 8842A skips tests 3 and 4. Also, if Option -09 is not installed, the 8842A skips tests 1, 2, and 3.

6-4