AMPTEC Research · Accessories & Test Leads
OP-304
4 Wire Banana Jack Test Lead Set for every AMPTEC 620 Series instrument (igniter testers, failsafe ohmmeters)
The OP-304 is a four-wire lead set with banana jacks at both ends, used mainly during calibration to connect an AMPTEC 620 Series instrument to a resistance standard. It also suits any tester with banana jack binding posts.
Overview
Each lead is 48″ (96″ span), 1 lb, with banana jacks at both ends. 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 | 48″ per lead (96″ span) |
| Weight | 1 lb |
| Instrument-end connector | Banana jacks |
| Probe / clip type | Banana jacks |
| 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
Calibration lead set
AMPTEC lists this set for calibration: a four-wire link from instrument to resistance standard, with lead resistance out of the reading.
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.
Banana jack interface
Banana jacks at both ends mate with every AMPTEC 620 Series unit and any resistance standard or tester with banana jack posts.
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-304
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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