Fluke 321 User Manual

ClampMeters
Performance Tests
5
Performance Tests
WWarning
To avoid electric shock, do not perform the performance test procedures unless
the Meter is fully assembled.
The following performance tests verify the complete operation of the Meter and check the accuracy of
each meter function against the Meter’s specifications. If the Meter fails any part of the test, calibration
adjustment and/or repair is indicated.
In the performance tests, the Meter is referred to as the unit under test (UUT).
Table 1. Required Equipment
Equipment Minimum Specifications Recommended Model
AC Calibrator
DC Voltage: 0 to ±1020 V
AC Voltage: 1 mV to 1020 V, 10 Hz to 500 kHz, Sine
AC Current: 29 µA to 20.5 A, 10 Hz to 30 kHz, Sine
Ohms: 0 to 1100 MΩ
Fluke 5520A
50-Turn Current
Coil
Uncertainty due to Clampmeter/ Coil Interaction: ± (0.25% of effective
output + 0.5A), for toroidal-wound current clamps, such as the Fluke
80I and 80I-1000.
± (0.50% of effective output + 0.5A), for current clamps like the Fluke
80i-kw, 80i-400, 80i-410, 80i-500, 80i-1010, Fluke 31, Fluke 33, or
equivalent.
Fluke 5500A/Coil
Mirror
Testing the Display
Test the display by turning the Meter on while holding down the HOLD button. Check all segments for
clarity and contrast. Refer to Figure 2.
On/Off
HOLD
V
A
OFF
V
322
CLAMP METER
ade01f.eps
Figure 2. Testing the Display

Fluke 321 Specifications

General

Type	Clamp Meter
Continuity	≤ 30 Ω
Jaw Opening	25 mm
Safety Rating	CAT III 600 V
Battery Type	2 x AAA
Weight	220 g
AC Voltage Range	600 V
DC Voltage Range	600 V