Insulation Resistance Tester

NegotiableUpdate on September 11

Model

Nature of the Manufacturer: Manufacturer

Product Category: Insulation Tester

Place of Origin: City, Province

Online Consult Contact Information

Overview

Function：Insulation resistance, absorption ratio, polarization index, leakage current, capacitance testRated voltage：DC:250V/500V/1000V/2500V/5000V Standard500V/1000V/2500V/5000V/10000V/（12000V）HVAutomatic discharge：The relay automatically discharges, and the discharge voltage is digitally displayedMeasurement instructions：LED flashing indication during measurement, LCD counting, progress bar graph indicationTest frequency：Automatic frequency selection

Product Details

I.Introduction

The insulation resistance tester is mainly used to measure the insulation resistance, absorption ratio and polarization index of high-voltage and ultra-high voltage electrical equipment. The instrument has two sets of high-performance single-chip computers that can simultaneously perform data sampling, data processing and operation control. The instrument has functions such as automatic calibration, automatic measurement, and automatic discharge. The operation is simple and easy to use. Import FFT (Fast Fourier Transform) technology, AFC (Automatic Frequency Control) technology, automatically identify interference and select the measurement frequency, minimize the impact of interference, and provide more accurate insulation resistance. It has unique anti-interference ability and environmental adaptability, and good consistency of repeated tests, ensuring high precision, high stability and high reliability of long-term measurement. It is widely used in the measurement of insulation resistance, absorption ratio, polarization index, capacitance, and leakage current in electric power, telecommunications, meteorology, oil fields, construction, lightning protection and industrial electrical equipment.

Insulation resistance tester, also known as digital megohmmeter, electric shaker, is composed of a host and test wires. The special toolbox design of the host machine uses polypropylene plastic as the raw material and adds new composite fillers for one-time injection molding. The density, strength, rigidity, hardness, wear resistance, heat resistance, and insulation performance are superior, and the box can withstａnd The pressure of about 100kg ensures the high precision, high stability and high reliability of various environmental tests. The host's large LCD display, with backlight, analog bar graph indication, is clear at a glance.

II.Technical specifications

Function	Insulation resistance, absorption ratio, polarization index, leakage current, capacitance test
Power	DC12V 2.2Ah Rechargeable high-performance lithium battery
Back light	Controllable white screen backlight, suitable for dim places
measurement method	DC negative pressure output
Rated voltage	DC:250V/500V/1000V/2500V/5000V Standard 500V/1000V/2500V/5000V/10000V/（12000V）HV
Measurement	250V:0.5MΩ～600MΩ （Can be expanded to 0.2TΩ）
	500V:1.0MΩ～1GΩ （Can be expanded to 0.2TΩ）
	1000V:2.0MΩ～5GΩ （Can be expanded to 0.4TΩ）
	2500V:5.0MΩ～50GΩ （Can be expanded to 1TΩ）
	5000V:10.0MΩ～100GΩ （Can be expanded to 10TΩ）
	10000V:20.0MΩ～500GΩ （Can be expanded to 10TΩ）
	12000V:50.0MΩ～10TΩ
Highest resolution	0-999MΩ：0.1M
	1-10GΩ：10M
	100GΩ above：100M
Precision	±10%rdg±3dgt （0~50GΩ） ±15%rdg±3dgt （50GΩ～100GΩ） ±20%rdg±3dgt （100GΩ～10TΩ）
Capacitance measurement	0.1-5μF
Test frequency	(Automatic frequency selection)
Test current	DC0-5mA
Filter function	Three kinds
Overload protection	10seconds
Short circuit current	5mA
Automatic discharge	The relay automatically discharges, and the discharge voltage is digitally displayed
LCD size	128mm×75mm
Measurement instructions	LED flashing indication during measurement, LCD counting, progress bar graph indication
size	Instrument size: 320mm×275mm×145mm in length, width and height
size	Outer packaging size: length, width, height 400mm×245mm×335mm
Standard test line	3 strips: red 3m with probe, clip, hook, black 3m, green 3m, 1 each
Analog bar graph	38point
Number of measurements	More than 500 times (short circuit test, test once, stop for 30 seconds and then test)
DAR/PI	Automatic measurement, automatic display
Alarm function	When measuring, "beep--beep--beep--" alarm prompt
Automatic shut-down	Automatically shut down after 5 minutes of no operation
Operating Voltage	External AC220V power supply, internal conversion charging power supply is 19V
Quality	meter：4kg(With battery)
Quality	Total mass：6kg(With packaging)
Working temperature and humidity	-10℃～40℃；under 80%rh
Storage temperature and humidity	-20℃～60℃；under 70%rh
Electromagnetic properties	IEC61326(EMC)
Application standard	IEC61010-1(CAT Ⅲ 300V、CAT IV 150V、Pollution level 2)； IEC61010-031；IEC61010-31-1(Hand-held probe)；IEC60529；IP40。

III.Safety instructions

●This meter is designed, produced, and inspected according to IEC61010 safety specifications.

●It is strictly forbidden for this meter to touch the test wire during testing, otherwise it may cause electric shock.

●In any case, pay special attention to safety when using this instrument, and pay attention to the label text and symbols on the body of this instrument.

●Before use, make sure that the meter and accessories are in good condition, and that the insulation layer of the meter and test line is not damaged, exposed, or disconnected before it can be used. Please stop using it when the case or test wire is broken and the metal is exposed.

● After the instrument measures the high-capacity sample, the sample must be discharged again in accordance with the relevant high-voltage operating regulations.

● During the measurement, the test line is fixedly connected with the test product. The instrument will not be damaged by the reverse discharge of the test product to the instrument, nor will it affect the measurement accuracy of the absorption ratio and polarization index. The high voltage establishment time of the instrument does not exceed 30ms.

● When the measurement voltage is above 2500V and the insulation resistance of the tested product is less than 5 MΩ, the instrument will automatically stop measuring 20 seconds after starting the measurement, because the power consumption is large when measuring small insulation resistance, so as not to consume battery power too quickly.

●During the measurement process, it is strictly forbidden to touch the bare conductor and the circuit being measured.

●Please confirm the position of the "Start/Stop" function button before measuring.

●Confirm that the connecting plug of the wire has been tightly inserted into the interface of the instrument.

●Do not charge when the voltage fluctuates or directly use an external power supply for testing, otherwise the meter may be damaged.

●Do not measure in flammable places, sparks may cause explosion.

●Do not place or store the meter for a long time in a place with high temperature, humidity, condensation, or under direct sunlight.

●If the instrument is wet, please dry it before storing.

●When charging the battery, please make sure that the test lead has been moved away from the meter and the power switch is in the off position.

●If you do not use the meter for a long time, please charge the battery every 2 months.

●Pay attention to the measurement range and use environment specified by this instrument.

●The use, disassembly, calibration and maintenance of this instrument must be operated by authorized personnel.

●Due to the reasons of this instrument, if it is dangerous to continue to use it, it should be stopped immediately, sealed up immediately, and handled by an authorized organization.

●For the safety warning signs in the instrument and manual, the user must strictly follow the contents of this manual for safe operation.