Fluke 1621 — пользовательское руководство по измерительным приборам [16/26]

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1621

Users Manual

Table 3. Display

No. Description

A RH, RS and RE icons indicate the resistance type being displayed:

RH = Auxiliary electrode resistance

S = Probe resistance

E = Earth ground electrode resistance

B ACTIVE icon indicates a measurement is in progress

C Digits display measurement results and messages

D ke icon indicates reading value is in kilohms (x1000)

E >LIMIT icon indicates measurement value exceeds the set limit or

that auxiliary electrode resistance or probe resistance value

exceeds 199 ke

F W icon flashes if measurement value exceeds set limit or leakage

voltage exceeds 20 V

G LO-BAT icon indicates battery voltage is low

H U icon indicates the displayed measurement is stray interference

voltage (above 20 V)

Interference Detection

The Tester automatically checks for interference voltage (noise) fault voltage

above 20 V. Interference above 20 V greatly diminishes the accuracy of

measurements. If the Tester detects interference voltage above 20 V, the

measurement automatically stops, the W icon flashes, the U icon displays, and

the value of the stray voltage displays.

Auto Shut-Off

The Tester has an auto shut-off feature that turns the device off after 10

minutes of inactivity. The Tester beeps to alert you that it is about to turn off.

To disable auto shut-off, simultaneously press and hold START and

DISPLAY while setting the rotary switch to any On position (3 pole, 2 pole

or LIMIT). To reset auto shut-off or to reset the Tester, turn off the Tester and

then turn it on again.