KONEL BM500A Operator's Manual

BM500A OPERATOR'S MANUAL
I. Overview
Welcome to use the product!
500A is a digital insulating resistance tester. 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 characteristics
(1) Auto range: "1" will be displayed for overload.
(2) Display mode: Liquid crystal display; maximum display:
1999；
(3) Sampling rate: 2.5 times per second；
(4) The meter can display actual insulation test voltage. LED
light is used to indicate high voltage output status；
(5) Operating environment: 0C-40C, less than 75%RH；
(6) Storage environment:-10C-60C, less then 80%RH；
(7) Indication for insufficient battery capacity: "
displayed；
(8) Power Supply: 9V battery, 6F22 or NEDA 1604
(9) Operating Temp.: 0℃ to 40℃ (relative humidity <75%)
(10) Storage Temp.:-10℃ to 50℃ ((relative humidity <85%)
(11) Dimension: 69x138x31mm(with holster)
(12)Weight: approx. 170g (including battery)
V. Technical characteristics and operating description of
the insulation tester
Accuracy is specified for a period of year after calibration
and at 18℃ to 28℃ (64℉ to 82℉) with relative humidity to
75%.
VI. Usage for insulating resistance measurement
Danger: If there is any measurement error, it may cause
personal injury and meter failure. Operate it only after read
the operating instructions carefully and thoroughly. Our
company will take no responsibility for the accident not
Rated voltage
Open circuit voltage
Measurement range
Minimum Resolution
Accuracy
The measurement
resistance value that can
maintain lower limit of
the rated voltage
short circuit current
caused due to any reason of our company.
1
" is
- +
250V/500V/1000V
90%~110% of the rated voltage
0.001~1999MΩ
0.001 MΩ
±(5%RDG+5)
250V： about 500kΩ
500V： about 1.5MΩ
1000V： about 5MΩ
Not less than 1.5mA