Digital Multimeters

 

 

 

 

 

 

 

 

 

 

Performance Tests

 

 

 

 

 

Table 3. DMM Performance Tests (cont)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Step

Function

Range

Applied

 

Display Reading

 

 

 

 

 

 

 

 

 

 

 

114[1]

115[1]

116[1]

 

117[1]

 

 

 

 

 

 

 

 

 

 

41

 

VoltAlert

Hi

 

 

 

 

 

Refer to

 

 

 

 

 

 

 

 

 

 

 

steps 1 – 5

 

 

 

 

 

 

 

N/A

N/A

N/A

 

in the

 

 

 

 

 

 

 

 

 

 

 

procedure

 

 

 

 

 

 

 

 

 

 

 

below

 

 

 

 

 

 

 

 

 

 

 

 

 

 

42

 

VoltAlert

Lo

 

 

 

 

 

Refer to

 

 

 

 

 

 

 

 

 

 

 

steps 6 – 9

 

 

 

 

 

 

 

N/A

N/A

N/A

 

in the

 

 

 

 

 

 

 

 

 

 

 

procedure

 

 

 

 

 

 

 

 

 

 

 

below

 

 

 

 

 

 

 

 

 

 

 

 

 

[1]

If using a Fluke 9100 calibrator, the Calibrator Frequency mode must be used to obtain accurate frequency.

 

 

[2]

To keep from tripping the calibrator to standby, ramp up the voltage in 50 V increments with a 5 second delay between

 

 

 

increments.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Testing the VoltAlert Function (117 only)

Use the following procedure to verify that VoltAlert functions properly.

Note

Ensure the instrument is REMOVED from the holster prior to performing the test.

Keep the meter away from electrical noise sources during the tests, i.e., florescent lights, dimmable lights, motors, etc.. These sources can trigger VoltAlert and invalidate the test.

It may be necessary in steps 4 and 8 below to slightly adjust the Meter’s position for maximum signal strength, in order to get the Meter’s beeper to sound continuously.

Refer to Figure 4 while performing the following steps.

1.Select the VoltAlert function, and verify that “Hi” is on the display. Verify that the beeper is silent and the red LED is off.

2.Connect a double banana plug to the output voltage terminals of the calibrator (Fluke 5500A or equivalent).

3.Set the calibrator output to 10 V at 60 Hz.

4.Hold the Meter so that the Meter’s top is vertically and horizontally centered and contacting the banana plug’s Hi terminal. Verify that the Meter’s beeper is on continuously, and the red LED, at the top of the display, lights up.

5.Place the calibrator in standby mode and verify that the beeper is now silent and the red LED is off.

6.Press the q(display should indicate ‘Lo’ range).

7.Set the calibrator’s output to 30 V at 60 Hz.

11

Page 11
Image 11
Fluke 114, 115, 116 specifications Testing the VoltAlert Function 117 only