8250
High Voltage Cable Tester
The 8250 delivers advanced high voltage testing for demanding applications. With modular architecture, support for active components, and integration with external instruments, this system adapts to complex assemblies and scales for production environments of any size.
The 8250 now succeeds the CH2 model.

Experience unmatched flexibility with the 8250, our most powerful system for high voltage cable testing. Designed for complex assemblies such as harnesses and backplanes, the 8250 combines modular scalability with advanced capabilities to meet the demands of modern production environments.
Programming is fast and intuitive with options to auto-learn samples, create programs through the user interface, or import existing test files. The 8250 supports active component testing and integrates seamlessly with external instruments, including high-capacity power supplies and meters, for complete test coverage.
Modular base units and expansions allow you to distribute test points, minimize adapter cable lengths, and reduce costs. Multiple units can be combined for large assemblies or reconfigured for smaller setups without additional hardware, delivering maximum agility and efficiency.
Enhance your testing with advanced features such as high-speed test points for detecting intermittent connections, flexible modules for energizing relays and active components, and optional digital I/O for external device control. Built-in temperature and humidity monitoring ensures consistent performance in any environment.
Transitioning from the CH2 Platform
The 8250 is a direct replacement for the CH2 and is fully compatible with your existing cabling, adapters, and test programs.
Features

Fast, Accurate Testing
Solid-state circuitry and high-speed test points deliver quick low-voltage checks and precise high-voltage performance.

Flexible Measurement Options
Advanced test points adapt to complex assemblies and integrate with external instruments for complete testing coverage.

Combined Power & Measurement
Flex Test Points save space by energizing and measuring components in one module, controlled through intuitive software.

Connected & Controllable
Optional API and OPC UA support enable smooth integration with external applications and automated workflows.

Digital I/O for External Devices
Add optional sourcing or sinking digital I/O modules to interface with light curtains, safety switches, and other equipment.

Modular, Scalable Design
Distribute test points up to 200 feet or combine multiple base units for large assemblies—then reconfigure as needed.
Specifications
Test Points
64 to 100,000+ test points in 64-point increments
High Voltage Test
Insulation Resistance Test (IR)
- Voltage: 100 to 1500VDC ± 5% ± 5 V
- Resistance: 5 MΩ to 3 GΩ ±10% (Optional 10 GΩ ±10%)
Dielectric Withstand Test
- Voltage: 100 to 1500 VDC ± 5% ± 5 V or 100 to 1070 VAC ± 5% ± 5 V
- Current Limit: (DC) 10 μA to 2.5 mA, (AC) 10 μA to 2.5mA (RMS)
- Max Capacitance Per Net: 30 nF @ 1500 VDC; 6.3 nF @ 1000 VAC
- HV Energy Limit: 35 mJ
- HV Charge Limit: 45μC
Max Points Per Net
Unlimited
Low Voltage Test
2 Wire
- Voltage: 3.3 V standard
- Current: 0.1 μA to 10 mA
- Resistance: 0.1 Ω–10 MΩ ±2% ±0.1 Ω
4 Wire
- Voltage: 3.3 V standard
- Current: 0.1 μA to 2 A
- Resistance: 0.001 Ω to 100 Ω ±2% ±0.001 Ω
Component Tests
- Diodes: 0 to 6 V standard; 0-30 V optional with Advanced Test Points
- Resistors: 0.1 Ω to 1 MΩ ±1% ±0.1 Ω, 1 MΩ to 10 MΩ ±2%
- Capacitors: 10 pF to 5000 μF ±10% ±50 pF
- Twisted Pairs: Verify proper pairing in twisted pair cables
Digital Input/Output
- Sourcing (PNP): 16 inputs, 16 outputs, 12 V – 24 V
- Sinking (NPN): 20 configurable Inputs/Outputs, 8 Outputs,
3.3 V – 24 V
Available Test Point Modules
- High Speed Test Points 64pt: Single relay per test point for high voltage switching. Uses solid state circuitry to maximize test speed during low voltage testing.
- Advanced Test Points 64pt: Two relays per test point, allowing external meter integration, floating selected nets to isolate high voltage and capacitance measurements, optionally allows stimulus up to 30 VDC 10mA during low voltage testing.
- Flex Test Points 32pt: Dual-function module enables testing and energizing up to 60VDC/2A or 40 VAC/1.4A RMS on each point. Supports external meter integration and can be combined in systems with Advanced Test Point modules.
- Low Voltage Only Test Points 64pt: For complex functionality without High Voltage. The system can be field upgraded with HV scanner replacement modules and adding an HV module.
Test Point Interface
96 pos. Female VME Eurocard connector-32 pos. loaded
User Interface
PC Requirements
- Test Station: 2.0 GHz min. processor speed, Windows 11 Pro®, 15 GB hard drive space, 4 GB RAM, 256 MB min. video memory, 1024 x 768 min display resolution, sound (for audible feedback), USB 2.0 or 3.0 port
- Optional Network Database Server: As above except no sound or USB ports required.
Power
115 / 230 V 50/60 Hz
Dimensions
(width x height x depth)
17.35” x 7.14” x 13.65” (44.07cm x 18.14cm x 34.67cm)
Weight
40 lbs (18kg) fully loaded
Datasheet
Product Options
8250 Base Unit (C8250-BU)
8250 Base with Easy-Wire software and Controller Module (No HV or test points)
8250 Expansion Box (C8250-EX)
8250 Expansion with Controller Module and Expansion Cable
System Modules
CM-HV15: 1500DC / 1070 VAC High Voltage Module
CM-HV15-10G: 1500DC / 1070 VAC High Voltage Module, Supports IR measurements up to 10 GΩ
CM-DIOSR: Sourcing Digital I/O Module
CM-DIOSK: Sinking Digital I/O Module
Energization Power Supply
- ZPWR-05: Energization Power Supply 5V
- ZPWR-12: Energization Power Supply 12V
- ZPWR-15: Energization Power Supply 15V
- ZPWR-24: Energization Power Supply 24V
- ZPWR-28: Energization Power Supply 28V
- ZPWR-48: Energization Power Supply 48V
Easy-Wire Scripting Option (SCPT-EW-CUS)
- Provides increased flexibility for unique test processes.
- Make highly customized reports or cable tags.
- Extra control for external devices such as lamps, hold-down clamps, markers, etc.
- Increased flexibility for testing switches, gas fuses, zener diodes, bi-color diodes, etc.
- Verify color and lighting of LEDs.
- Display operator selections to customize the test process.
- Hipot different nets at different voltages.
OPC UA Server for Easy-Wire Software (OPC-EW)
Transmit tester status and test information in real time to other information systems or equipment.
Cirris Tester Access API for Easy-Wire Software (CTA-EW)
Alternatively control the tester with third party applications written in LabVIEW, Python, C, C#, C++ and Delphi.
8250 Performance Check Kit
(PCHK-XHW-3G) 3GΩ IR Capability
(PCHK-XHW-10G) 10GΩ IR Capability
Verify calibration with the performance check kit. The certificate of calibration included with a performance check kit is valid for two years.
Product Documentation & Software
Getting Started
User Manuals
Learn how to set up and operate your 8250 tester.
Easy-Wire Software
Easy-Wire Software controls the 8250 tester. If networking, the Cirris Server Software must be the same version as the Easy-Wire Station Software.
Cirris Server + Hub
Allows stations running Easy-Wire to share the same network database. Support station monitoring and optional advanced reporting. Requires password provided by your sales rep.
Cirris Software Installer
Version 2026.1.0.8221 | 603.45 MBSoftware installer for Easy-Wire, Cirris Server + Hub, and Cirris 42XX Hub.
MD5 Checksum: 60fd383266f41c52c8fe2016f9a66f69
Supporting Documentation & Software
Advanced Instructions
Advanced Instructions provide full control over test voltage and current measurement. Integrate external instruments to expand measurement ranges, increase accuracy, and to perform specialized testing.




