HT Instruments IMP57 Line Impedance Probe
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HT Instruments IMP57 — line impedance probe for electrical safety with 0.1 mOhm resolution, 4-wire method, and RS-232 interface.
Product details
| Model | IMP57 |
| Manufacturer | HT Instruments |
| Category | Electrical Safety & Testers |
| Availability | Made to order |
Description
Overview
The HT Instruments IMP57 is a specialized line impedance probe for electrical safety testing and analysis. It measures loop and line impedance with high precision using a 4-wire measurement method, calculating maximum and minimum values of prospective short circuit current. The device provides LED panel indication and connects to master meters via RS-232 interface.
Key Features
- Loop and line impedance measurement (P-P, P-N, P-PE configurations)
- High-resolution measurements (0.1 mOhm)
- 4-wire measurement method for superior accuracy
- Maximum and minimum short circuit current calculation
- AC voltage measurement capability
- Frequency measurement
- RS-232 interface for master meter connection
- LED front panel indication
Applications
- Electrical safety compliance testing
- Fault loop impedance measurement
- Installation testing and verification
- Maintenance and troubleshooting of electrical systems
Included Accessories
- C7000: Set of cables for 10A test (3m length)
- C2001: Optical/RS-232 cable
- B80: Carrying bag
- ISO9000 calibration certificate
- User manual on CD-ROM
Specifications
| Measurement Type | Loop/Line Impedance (P-P, P-N, P-PE) |
| Resolution | 0.1 mOhm |
| Measurement Method | 4-wire |
| Voltage Measurement | AC voltage capable |
| Frequency Measurement | Yes |
| Output Interface | RS-232 |
| Short Circuit Current | Maximum and minimum calculation |
| Calibration | ISO9000 certificate included |
| Included Cables | C7000 (10A test, 3m), C2001 (Optical/RS-232) |
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HT Instruments IMP57 Line Impedance Probe
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