BM500A Digital Insulation Resistance Meter 1000V 1999M Resistance Tester Meter Megohmmeter Megger Multimeter

BM500A Digital Insulation Resistance Meter 1000V 1999M Resistance Tester Meter Megohmmeter Megger Multimeter

I. Overview

BM500 /500A is a digital insulating resistance tester. BM500Output test voltage can be switched among 100V/250V/500V, BM500A Output test voltage can be switched among 250V/500V/1000V, The measurement range of the meter can reach up to1999MΩ. The product is applicable to measurement of the insulating resistance of various insulating materials and electric equipments such as transformers, motors, cables, switches, and electric apparatuses. It is also applicable to maintenance, test, and inspection of various electric equipments. It is compact in structure, convenient to carry, and an ideal electrical and electronic testing meter of yours.

II. Safety information

(1) Description of safety marks:

Warning: important safety information the user must read.

Danger: high-voltage electric shock is present.

Double-insulated protection

(2) Read the operating instructions carefully before use the meter.

(3) It is strictly prohibited to use the meter before its rear cover is put in place. Otherwise, it might cause an electric shock.

(4) Check and make sure the insulating layer of the test cable is in good condition without any breakage.

(5) To avoid electric shock, do not touch the test cable and the circuit under test when performing a test.

(6) Make sure one end of the test cable is securely inserted into the terminal.

(7) During test, any range must not exceed its specified maximum input value.

(8) During test, do not operate the switch knob for changing a range to avoid damaging the meter.

(9) Before performing insulation test, make sure the range selection switch has been set within an appropriate voltage range.

(10) Do not perform insulating resistance test in a combustible environment. Spark may cause explosion.

(11) Stop using the meter, if its case or test cable is broken during use and the metal is exposed

(12) When open the rear cover for changing battery, make sure the test cable has been removed out of the test terminal and the range switch switched to OFF position.

(13) Take the battery out when the meter will not be used for a long time.

(14) When “” is displayed in the meter, it is necessary to change the battery in time to ensure measurement accuracy.

III. Name and function of parts (see the figure)

1.LCD

2.Data-hold Switch (HOLD)

3.Rotary Switch: use this switch to select functions and ranges

4.L (LINE) input terminal (connected to line terminal of the to-be-tested object).

5.G input terminal: shielded terminal of the insulating resistance.

6.E (EARTH) input terminal (connected to EARTH terminal of the o-be-tested object)

7.TEST/STOP key: it is used to measure the insulating esistance

to-be-tested object)

8. Indicator light of high voltage

IV. General character