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620ES | Mid-Range Digital Failsafe Ohmmeter
The AMPTEC 620ES failsafe ohmmeter was specifically designed for ultra-safe testing on squibs, flares, bridge-wire, and other explosive devices. The 620ES meets mid-range resistance requirements and offers a fail-safe current limiting resistor network circuitry to insure test currents cannot exceed 8 mA. Capable of making highly accurate resistance measurements from 2 Ω to 200 KΩ, this ohmmeter has a proven track record of durability: with 20+ year old units still being used in the field today. This product was derived from the USAF Non-Nuclear Munitions Safety Board approved AMPTEC 620A-4 meter – thus creating a product line that is the industry standard in igniter testing.
Please contact us to purchase.
Specifications
Range, Resolution, Accuracy, & Current Levels
| Range | 2 Ω | 20 Ω | 200 Ω | 200K Ω |
|---|---|---|---|---|
| Nominal Current | 5 mA | 5 mA | 50 uA | .5 uA |
| Failsafe Current | 8 mA | 8 mA | 8 mA | 8 mA |
| Resolution | 100 uΩ | 1 mΩ | 10 mΩ | 10 Ω |
| Accuracy | ± .02% of reading & ± .05% of range | ± .02% of reading & range | ± .02% of reading & range | ± .02% of reading & of range |
General Specifications
| Display | 4 1/2 digit LED | Terminals | Banana jack binding posts |
|---|---|---|---|
| Storage Temperature Range | -20° to 70° C | Operating Temperature Range | 0° to 50° C |
| Dimensions | 9.75″ x 10″ x 3.25″ | Weight | 3.5 lbs. |
| Power | 4 ea rechargeable 5AHr NICAD batteries | Max. Input Voltage | 250 VDC |
| Open Circuit | 1.6 VDC | Max. Internal Voltage | 4.8 VDC |
| Update | 3 readings/second | Temperature Coefficient | ± .002% per 1° C |
For further specifications (such as the various modified versions of this product) contact us or see the product data sheet.
Ordering Information
| Product | Description | Price |
|---|---|---|
| 620ES | Includes 620ES failsafe ohmmeter, (OP-300) lead set, (620-DC) battery charger, & U.S. N.I.S.T Calibration Certificate. | Request a quote! |
| Lead/Probe Sets | The 620ES ohmmeter is compatible with our 620 Series probe/lead sets and accessories. |
|---|
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