
In the field of electric locomotive manufacturing, ensuring the insulation performance of high-voltage electrical components is
Are you in need of high-quality megohmmeters and insulation resistance testers? DEMIKS, a leading supplier based in China, has got you covered. With years of experience in the industry, we have incorporated insulation resistance testing products that not only maintain unparalleled trust in the industry but are also precise. In order to enhance the safety and efficiency of your electrical appliances, we aid in effective and accurate resistance measurement. For any insulation resistance testing requirements, depend on DEMIKS. Reach out to us now for further assistance regarding our products.
Adaptable Insulation Testing: A DGZ617 series tester measures the insulation performance of electronic elements, dielectrics, wires and cables, as well as anti-static infrastructure. In addition, it measures weak currents such as photoelectric and dark currents.
Advanced Display & Features: Shows results of sorting, insulation resistance and leakage current simultaneously, alongside quadrant triggers and complete-range calibration.
Effective Decision Making: Embedded comparison functions with four distinct data partitions allow swift PER/FAIL determinations for evaluated components.
| Parameter | Specification |
|---|---|
| Model | CXT5017 |
| Test Parameters | Insulation Resistance (IR), Micro Current (I) |
| Measurement Range | Resistance: 10 kΩ – 100 PΩ |
| Current: | 2 mA – 0.0001 pA |
| Current Accuracy | I > 10 nA: ±2% |
| I ≤ 2 nA: ±5% | |
| I ≤ 20 pA: ±15% + 4.0 fA | |
| Resistance Accuracy | Calculated based on current accuracy |
| Voltage Range | 0.5 – 1000 V |
| Voltage Accuracy | Voltage ≥ 10 V: ±0.25% + 0.5 V |
| Voltage | < 10 V: ±1% + 0.5 V |
| Readback Voltage Accuracy | ±0.25% + 0.25 V |
Purpose and Application: The four-probe tester DGZ-618 is an advanced unit for measuring the resistivity and block resistances of semiconductors and other materials in compliance with national and ASTM standards.
High Accuracy: Through the use of double electrical measurements, errors due to sample shape, boundary effects, probe distance, and mechanical drift are corrected, ensuring better precision and reliability.
Advanced Display: This device has a 7-inch high brightness color LCD display with 480 by 272 resolution which offers usability and clear graphics with multilevel parameter display and interactivity (resistance, resistivity, square resistance).
Wide Range and Precision: These parameters are measured with broad ranges and are extremely precise (resistance: 10⁻⁴ Ω to 10⁵ Ω; square resistance: 10⁻⁴ Ω/□ to 10⁵ Ω/□) with additional forward/backward current source correction.
| Parameter | Specification |
|---|---|
| Temperature | 23°C ±5°C |
| Humidity | ≤80% R.H. |
| Warm-up Time | >60 minutes |
| Calibration Interval | 1 year |
Specialized Use: Intended for the insulation resistance measurements of water-cooled generators, may be utilized for other materials in laboratories and fieldwork as well.
High Performance: Contains >20mA output current with a maximum of 2500V output voltage, a digital boost system, and a high precision microcurrent measurement system.
User-Friendly: Large LCD improves measurement reading and result retrieval, enabling automation in measurements.
| Rated voltage: DC 2500V | Operating voltage: Rated voltage*(1±10%) |
|---|---|
| Withstand voltage: AC5kV 50Hz 1 min | Working power supply: 180~270VAC 50Hz/60Hz±1% |
| Dimensions: 320*240*135mm³ | Weight: 5kg |
| Measuring range:insulation resistance1MΩ~20GΩ | |
| Absorption ratio, polarization index:1-19.99 | |
| Margin of range: ±10RDG when1MΩ~5GΩ ±20% RDG when1MΩ~5GΩ;5MΩ~20GΩ | |
| Short circuit current: >20mA Insulation resistance:50MΩ(1000V) | |
| Working environment: temperature0~40°C Relative humidity20~80% |
High Performance and Accuracy: Outputs exhibit powerful output energy, substantial load capability, and strong anti-interference performance. For precise measurement and protection against external interference, a fourth-order active low-pass filter and an equipotential protection ring are employed to preserve accuracy in measurements made low-resistance and capacitive specimens.
User-Friendly Design: Features an ergonomic interface, a battery-operated power supply with auto range selection, and an LCD screen which streamlines the capture of measurements enhancing agility and precision.
Advanced Functionality: Automatic estimation of output short-circuit current, prompt escalation of voltage to nominal levels, and linear testing structure further enhance accuracy capture precision.
| Environment temperauture:0°C~45°C | Relative humandity:≤85%RH |
|---|---|
| Output voltage:500V,1000V,2000V,2500V | Measurement range: 0-19990MΩ |
| Resolution:0.01MΩ, 0.1MΩ,1.0MΩ,10.0MΩ | relative error: 0-2000MΩ<±5%±2d |
| Voltage/load:2500V/20MΩ | 2000MΩ-19990MΩ≤±10%±2d |
| Short-circuit current:>1.6mA | Voltage dips: about 10% |
| AC: 8*1.5V(AA,R6)battery | DC: 220V/50Hz |
| Static power consumption:≤160mW | Maximum power:≤2.5W |
| Volume:235mm*200mm*135mm | Weight:<1.4kg |
Purpose and Composition: This type of intelligent insulation resistance tester (megohmmeter) is designed to perform insulation resistance testing. It consists of medium and large scale integrated circuits.
Key Features: Moreover, it can measure DC/AC voltage, absorption ratio, and polarization index. It also has data storage/review capabilities which includes backlight LCD display, alarms, self shutdown, and other more functions.
Performance and Design: Provides remarkable stability, wide dynamic range, steady performance, strong anti-jamming, high accuracy, dependable results, and rugged protection against dirt and moisture.
Applications: Extensively for industrial power or energy in telecommunications and electric power industries, meteorological fields, oil fields, mechanical and electrical maintenance industry.
| Rated voltage:100;250;500;1000;2500;5000V | Measurement voltage:rated voltage*(1±10%) |
|---|---|
| Insulation resistance range:0.01MΩ-1000 MΩ | Insulation resistance resolution:0.01 MΩ |
| DC voltage range:0-1000V | DC voltage resolution:0.1V |
| AC voltage range:0-750V | AC voltage resolution:0.1V |
| Output short-circuit current:≥5mA(5KV) | Dimension:277.2mm*227.5*153mm |
Purpose and Composition: Also known as megohmmeters, intelligent insulation resistance testers are applied for insulation resistance examinations and are constructed using thick and thin film integrated circuits.
Key features: The device in question measures DC/AC Voltage, Absorption Ratio, Polarization Index, and other essential values while providing alarms, data storage and review functions. The device's casing renders it portable. It is accurate and reliable and it can withstand shock, dust, and moisture.
Applications: It is used in oil fields, telecommunications, meteorology, electric power, and mechanical and electrical maintenance. The system has a high output power with six voltage levels which enhances its versatility in various industries.
| Rated voltage:100;250;500;1000;2500;5000V,10kV | Measurement voltage:rated voltage*(1±10%) |
|---|---|
| Insulation resistance range:0.01MΩ-2000 GΩ | Insulation resistance resolution:0.01 MΩ |
| DC voltage range:0-1000V | DC voltage resolution:0.1V |
| AC voltage range:0-750V | AC voltage resolution:0.1V |
| Output short-circuit current:≥5mA(10KV) | Dimension:277.2mm*227.5*153mm |
Purpose: Geared for measuring insulation resistance of high voltage transformers, equipment, and cables during powerful voltage interferences. Applicable across multiple industries.
Key Features: Exceptional anti-interference capability (up to 2mA, 50Hz), vast range of resistance measurement capability (0.01MΩ~2000GΩ), and test voltage 20V is adjustable to any level from 0V.
Additional Functions: Also supports overload testing of >10mA short-circuit current with timer functions to evaluate absorption ratio and polarization index.
| Measurement voltage:0- Arbitrary voltage required | Temperature: 0~40°C, Relative Humidity: 20~90%. |
|---|---|
| Insulation resistance range:0.01MΩ-2000 GΩ | Insulation resistance resolution:0.01 MΩ |
| Output short-circuit current:>10mA | Dimension:315mm*240mm*155mm,5kg |
Understand how insulation resistance testers operate, their role in diagnosing electrical issues, and how to select the appropriate one to optimize performance while enhancing system safety.

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