AMPTEC Research · Accessories & Test Leads
OP-401
Gold Plated Single Point Kelvin Probe Set for every AMPTEC 620 Series instrument (igniter testers, failsafe ohmmeters)
The OP-401 is a gold-plated single-point Kelvin probe set for direct probing of terminals and contacts with any AMPTEC 620 Series instrument. Dual banana plugs also fit any other tester with banana jacks; the PG-401 is the same probe on a pistol grip.
Overview
Leads are 48″ red and 48″ black, 1 lb, with dual banana plugs at the instrument end and single gold-plated tips at the working end. Operating 0° to 50° C, storage -10° to 70° C. AMPTEC builds custom lengths and tip types to order; send us the spec. Evencat is the sole distributor for AMPTEC Research in Taiwan and handles selection, quotation and delivery.
Key specifications
| Category | Accessory · 620 Series accessories |
|---|---|
| Cable length | Red 48″, black 48″ |
| Weight | 1 lb |
| Instrument-end connector | Dual banana plugs |
| Probe / clip type | Single gold-plated tips |
| Operating temperature | 0° to 50° C |
| Storage temperature | -10° to 70° C |
| Compatible instruments | All AMPTEC 620 Series instruments (igniter testers, failsafe ohmmeters) and any tester with banana jacks |
| Manufacturer | AMPTEC Research (made in USA) |
Features
Single-point probes
One gold tip per probe lands directly on a terminal or contact. Simple to handle and the most common probe style on the 620 Series.
Gold-plated contacts
Gold plating keeps contact resistance low and resists oxidation, so readings stay repeatable over years of use.
Banana plug interface
Dual banana plugs fit every AMPTEC 620 Series unit and any other tester with banana jacks.
Custom length and tip type
AMPTEC builds other lengths and tip types to order. Tell us the application; we confirm spec and lead time with the factory.
Compatibility and applications
Compatibility
AMPTEC instruments that take the OP-401
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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