Amprobe AD40B Pengguna Manaul - Halaman 4

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AC Current Measurement (Fig. 2)

1. Set the slide switch to ACB position.

2. Open spring-loaded clamp by pressing lever on left side of meter.

3. Position clamp around wire or conductor and release clamp lever.

Make sure that the conductor is centered in the clamp and that the

clamp is entirely closed. The clamp must be positioned around only

one conductor. If it is placed around two or more current carrying

conductors, the reading is FALSE.

4. Read the measured value on the display. If the measured value

exceeds the highest range for a period of time, overheating may occur.

Interrupt measurement.

Do not measure current on high-voltage conductors

(>600 V) in order to avoid risk of discharge and/or

incorrect reading.

AC & DC Voltage Measurement (AC40B) (Fig. 3)

1. Connect the black test lead to the COM input and the red test lead to

the "+" input.

2. Set the selector switch to V C position.

3. Press the AC DC button to select AC or DC voltage (B or F is

displayed).

4. Connect probe tips to circuit, in parallel to the load.

5. Read the measured value on the display.

Resistance & Continuity Measurement (AC40B) (Fig. 4)

1. Remove any voltage from resistance to be measured and discharge all

capacitors.

2. Connect the black test lead to the COM input and the red test lead to

the "+" input.

3. Set the selector switch to Ω R position.

4. Connect the probe tips across the circuit or resistance.

5. Read the measured value on the display.

The instrument emits a continuous tone and the R symbol is displayed

when the measured resistance is < 40 Ω.

Display Hold

Press the HOLD button to keep the measured value on the display for later

viewing. Press HOLD again to release the "Display Hold" function before

taking a new measurement. Display Hold can be applied to all measuring

functions.

Specifications

General Specifications

Display: (AC40B & AD40B) 3-3/4 digit LCD (max. reading 3999).

Polarity Indication: Automatic, negative indicated, positive implied

Overrange Indication : "OL" indicated.

Measuring Principle: Dual slope integration.

Range Selection: Automatic.

Low Battery Indication: N when battery voltage falls below operating

voltage.

Note