| Customization: | Available |
|---|---|
| Certification: | ISO9001, CCC, Contact Us |
| Protection: | Shock Resistance |
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• Guard terminal to eliminate surface leakage current
• Voltage indicating range
• Portable tester
• No scale multipliers
• Multiple test voltages for spot and step voltage testing
• Large, easy-to-read scale
The MJ159 insulation resistance tester provides excellent test voltage regulation and is the ideal instrument when high ranges are needed for measuring insulation resistance. It also has an external guard terminal to eliminate surface leakage current from the measurement.
The instrument generates a regulated DC high voltage and use low-zero-drift, high-accuracy circuits, with high current sensitivity. Designed for portability, it is enclosed in a moulded, impact-resistance, flame-retardant case that is made with ABS plastic with a fold down carrying handle.
The MJ159 is operated by a low voltage, hand-cranked generator that has been designed to be easy to turn even under full load conditions. The low voltage generator is connected to an electronic inverter to provide a very stable test voltage. Accuracy of measurement is unaffected by variations in the generator cranking speed and the test voltage is maintained at its rated value.
The MJ159 has four selectable test voltages of 100, 250, 500, and 1000 V DC. It measures insulation resistance up to 2000 MΩ, and an ohm range to 5000 Ω.
| Portable tester | Large, easy-to-read scale |
| No scale multipliers | Acceptance testing at time of installation to check conformance to specifications |
| Multiple test voltages for spot and step voltage testing | Routine preventive maintenance testing after installation |
| Guard terminal to eliminate surface leakage current | Quality assurance testing by the manufacturer |
| Voltage indicating range | Diagnostic testing to isolate faulty components for repair |
As a safety feature, the AC voltage range becomes effective as soon as the instrument is connected to the circuit under test. Therefore, a warning is given that the circuit under test is not de-energised before the instrument is operated. Though calibrated for AC voltage, this range also monitors the automatic discharge feature so that after equipment having capacitance (i.e., a cable), has been tested, an indication can be given that the voltage has discharged to a level that is safe for removing the test leads.
It is portable and self-contained, designed to give rapid and accurate measurements. The instrument is protected for connection to power distribution systems up to 300 V Line-Ground and 500 V Line-Line for Installation Category III. This relates to transient overvoltage likely to be found in fixed installation wiring.
Please note that the 210600, 21017 and MJ359 have been discontinued.
AVANTEST ELECTRONICS established in February 2018, integrates sales, system integration, customized services, R&D, and production.The company serves as a leading solution provider in relevant industries. Its R&D department team is experienced in microwave radio frequency, communication, and semiconductor industries. All of the core technical staff hold doctoral degrees. Its products and solutions are widely used in traditional industries and emerging technological fields, including but not limited to communication, aerospace, power electronics, industrial automation, automotive electronics, rail transit, semiconductor, new energy, LED lighting, medical electronics, and electromagnetic compatibility. Its customer base comprises research institutes, testing organizations, and industrial clients.
In addition to one-stop solutions for clients, the company also acts as an authorized agent for leading domestic and international brands in product testing and measurement. including, but not limited to: Keysight, Ceyear, Rohde Schwarz, Tektronix, Agitek, Anritsu, VIAVI, Gwinstek, ActionPower, Xinertel, and others.
The product range includes but is not limited to: oscilloscopes, signal generators, spectrum analyzers, network analyzers, DC power supplies, AC power supplies, parameter analyzers, device analyzers, microwave power meters, frequency counters, noise figure testers, EMI test receivers, signal quality analyzers (high-speed bit error rate testers), wireless communication testers, protocol analyzers (PCIe, SAS/SATA, USB, etc.), safety compliance testers, digital multimeters, LCR meters, electronic loads, special power sources, network testers, network impairment emulators, and others.
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