Fluke 1650B Инструкция по эксплуатации онлайн [33/62] 4485

Electrical Installation Tester

Making Measurements

4. Press 3 to select the RCD type. Valid types are:

• E – Standard AC RCD, normal setting.

• F – Pulse current sensitive RCD (Type A).

(Models 1652B and 1653B only)

• E G – Delayed response AC RCD.

• F G – Delayed response pulse current sensitive RCD.

(Models 1652B and 1653B only)

5. Press 4 to select the test current phase, 0° or 180°. RCDs should be

tested with both phase settings, as their response time can vary

significantly depending on the phase.

6. Press and release T. Wait for the test to complete.

• The primary (upper) display shows the trip time.

• The secondary (lower) display shows the fault voltage (N to PE)

related to the rated residual current.

• If the trip time is according to the appropriate standard of the RCD and

the fault voltage is below the chosen limit (25V, 50V), the RCD W

indicator displays. For more information, see Maximum Trip Time

Table on page 50.

To measure RCD tripping time for a custom RCD setting – VAR mode:

1. Turn the rotary switch to the ΔT position.

2. Press 1 to select the VAR current rating. The current custom setting

shows on the primary display. Use the U arrow keys to adjust the value.

3. Press 2 to select a test current multiplier. Normally you will use x 1/2 or

x 1 for this test.

4. Repeat steps 4 through 6 listed in the preceding RCD tripping time

procedure.

5. To view the nominal setting used for the test, depress the U arrow key.

Note

The maximum setting for type A RCDs is 700 mA.

To measure RCD tripping time using Auto mode:

1. Plug the tester into the outlet.

2. Turn the rotary switch to the ΔT position.

3. Press 1 to select the RCD current rating (10, 30, or 100 mA).

4. Press 2 to select Auto mode.

5. Press 3 to select the RCD type.