CKT688 Insulation Resistance Tester High Resistance Meter

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Product Overview


Product Description

 CKT688 adopts 4.3 inches true color IPS display shows the test value, programmable and adjustable, with test speed: 12 times/sec; dual display of resistance and leakage current,CKT688 is programmable sequential test mode, having 4-level comparator function of3-binGD and one NG.Equipped with HANDLER/RS232C/USB/RS485interface for remote control.U disk records test data and can remotely upgrade instrument firmware. With optional foot switch trigger function. CKT688 is widely used for high-value resistance; capacitor insulation resistance and leakage; various insulating materials and wire and cable equipment, etc.





CKT688 Insulation Resistance Meter


Insulation Resistance, Micro current

Output Voltage

0.5V~1000VDC (0.1V step NC)

Basic Accuracy

V > 10V: ±0.25% ±0.5V, V≤10V: ±1% ±0.5V

IR Test Range


Basic Accuracy

I > 10nA:±2%, I < 10nA:±5%, I < 1nA: ±10%

Current Test Range

10pA ~1mA

Basic Accuracy

I > 10nA:±2%, I < 10nA:±5%, I < 1nA: ±10%

Test Speed

Fast: single measurement time ≤45ms, Slow: single measurement time ≤85ms

Charging Test Time

Charging time: 0~999S, programmable

Test time: 0~999S, programmable


Auto/Hold range

Setup Save

5 groups inside the instrument or external U disk

Trigger Mode

Internal trigger, external trigger, BUS trigger, foot switch

Signal Output




Limit setting mode

3 bins; absolute value upper/lower limit or only unilateral judgment

Clear Zero

Open-circuit clear zero for all ranges




Temperature: 0~40; Humidity: 90%RH, no condensation


Power Supply 

Voltage:198V ~ 242V AC,Frequency: 47Hz~63Hz

Size and Weight

361mm(L) x 107mm(W)x264 mm(H); Weight: Approx. 4.6KG



Three-terminal Test Clip 

USB Communication cable

RS232 Communication cable

Handler Connector

AC Power Cord


Foot switch, data acquisition software



Company Information

Changzhou Chuangkai Electronic Co., Ltd is leading company specialized in producing, developing & selling various types of measuring instruments and testing equipment, such as temperature data logger, LCR meter, DC resistance tester (micro ohm meter), insulation resistance tester, digital power meter, power supply, transformer tester, battery tester, programmable DC electronic load, charger, hipot tester, impulse winding tester, transformer test system, cable tester, DC bias source, digital multimeter, thermal imager, infrared thermometer, oscilloscope, digital pressure gauge, pressure pump, temperature controller, tachometer, high voltage signal-amplifier, power amplifier, etc. 

Over the years Chuangkai has always adhered to "quality of products in order to survive, credibility and development services" business purposes. Committed to providing customers with high-quality products and quality services. Have a professional, dedicated design management team, from product design, mold making, molding to product assembly, for each aspect and processes are rigorously tested and control. 

Over the past few years of production and management and exploration, Chuangkai always implements the concept of customer value creation for customers tailored products to meet the needs of different customers, and continuously provide customers with solutions and technical problems. 

Chuangkai has cooperated with many clients both from domestic and overseas, and has obtained consistently high praise from our customers since it was set up. We hold managerial idea that 'Quality Proves Strength, Details Reach to Success', and try our best to do well at any aspect from each stitch, each point of procedure of manufacturing to final inspection, packing and shipment. We insist on the principle of development of 'High quality, Efficiency, Sincerity and Down-to-earth working approach' to provide clients with excellent service of processing! We sincerely welcome you to visit our company or contact us for cooperation! 

Warmly welcome you and opening up the boundaries of communication. We synchronize with your ideal partner! 

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Packaging & Shipping






Q: How long is the delivery date?
A: Inventory products will be delivered within 5-7 days after receipt of deposit; products
    requiring new production of common materials, usually within 15-20 days; products requiring        new production of special and rare materials, usually within 30-40 days.


Q: Can you customize it?
A: There are many models in our company, which can support customization.


Q: Are there any after-sales guarantees?
A: Were one-to-one after-sales It's absolutely satisfying to you.


Q: How many years have you guaranteed it?
A: Instrument quality guarantee for 1-2 years(different products), lifelong maintenance.


Q: Do you provide invoices?
A: Invoices are issued free of charge.


0.0162 s.