AMPTEC Research · Accessories & Test Leads
OP-302
Gold Plated Kelvin Lead Clips for every AMPTEC 620 Series instrument (igniter testers, failsafe ohmmeters)
The OP-302 is a pair of gold-plated Kelvin clips with unscrewable ends, for building your own lead set when the standard lengths or cable types do not suit the job.
Overview
Wire the OP-302 clips to your own cable and you have a Kelvin lead set of any length for the AMPTEC 620 Series or any tester with banana jacks. Proper storage and protection extend the life of leads and instrument and speed up field work. Evencat is the sole distributor for AMPTEC Research in Taiwan and handles selection, quotation and delivery.
Key specifications
| Category | Accessory · 620 Series accessories |
|---|---|
| Type | Gold-plated Kelvin clips (unscrewable ends) |
| Use | Self-assembled test lead sets |
| Compatible instruments | All AMPTEC 620 Series instruments (igniter testers, failsafe ohmmeters) and any tester with banana jacks |
| Manufacturer | AMPTEC Research (made in USA) |
Features
Build your own lead set
The clip ends unscrew for wiring. Add your own cable for a Kelvin lead set in the length and configuration you need.
Gold-plated contacts
Gold plating keeps contact resistance low and resists oxidation, so readings stay repeatable over years of use.
Four-wire Kelvin connection
Current and sense paths are separate at each clip or probe, so lead and contact resistance drop out of low-ohm readings.
Genuine AMPTEC accessory
Factory parts match the connectors, ratings and intrinsically safe design of AMPTEC instruments, avoiding the doubts that come with third-party leads.
Compatibility and applications
Compatibility
AMPTEC instruments that take the OP-302
All AMPTEC 620 Series instruments (igniter testers and failsafe ohmmeters) and any tester with banana jacks. On this site: 620A-4, 620A-4R, 620ES, 620MC, 620MG, 620BA, 620BH, 620EH, 620LM, 620RK, 620VL, 620VL-T, 620VN. Product lines: igniter testers, failsafe ohmmeters. Compatibility as stated by AMPTEC; ask Evencat if unsure.
Field
Defense, aerospace and shipboard work
Firing circuits, electro-explosive devices and bonding points vary in terminal shape and distance. The right tip and lead length make the reading repeatable.
Lab
Calibration and quality labs
A four-wire Kelvin hookup to a resistance standard or unit under test removes lead and contact resistance, keeping calibration and low-ohm checks accurate.
QA
Ordnance and pyrotechnic production QA
Lot sampling needs a fast, repeatable contact. Keep several lead sets with different tips on hand and match the terminal on each part.
Options and configuration
Tick the items you need. We compile them into a list and carry it into the quote form.
Standard (included)
Options and custom builds
Pair with an instrument
Downloads
Appearance, lead length or battery brand may differ slightly from the photo; the factory shipment governs. Custom lengths and tips on request via Evencat.
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