Transforming Technologies 7100.EFM51, Warmbier 7100.EFM51 Electrostatic Field Meter
Transforming Technologies 7100.EFM51 / Warmbier 7100.EFM51 Electrostatic Field Meter
The EFM51 is a full-featured handheld electrostatic field meter used to perform static surveys and evaluate charge accumulation in electronic manufacturing and industrial operations. It measures static voltages within ±20kV (20,000V) and calculates field strength (V/m) at four selectable distances. Results are displayed on a 12-digit alphanumeric LCD screen, and two LED guide ring lights help position the meter at the correct distance from the charged test object.
Key Specifications
| Specification | Value |
|---|---|
| Model | 7100.EFM51 |
| Measurement Range | ±20kV (±20,000V) |
| Field Strength Calculation | V/m at 1cm, 5cm, 10cm, and 20cm |
| Display | 12-digit alphanumeric LCD |
| Guide Lights | Two LED guide ring lights for distance positioning |
| Form Factor | Pocket-size, handheld |
| Includes | Storage bag, ground cable, and clip |
| Ionizer Testing | Compatible with EFM51.CPS Charge Plate Set (sold separately) |
| Compliance | ANSI/EOS/ESD S4.1, S7.1, S12.1, S2.1; ESD TR53 |
Key Features
- ±20kV measurement range — detects and measures electrostatic charge accumulation on surfaces
- 4 selectable measurement distances — 1cm, 5cm, 10cm, and 20cm for flexible field strength calculation
- LED guide ring lights — two LEDs help position the meter at the correct distance from the test object for repeatable measurements
- Pocket-size form factor — compact and portable for static surveys throughout the facility
- Ionizer performance verification — compatible with EFM51.CPS Charge Plate Set to check ionizer efficiency and offset voltage; measures static decay times from ±1,000V to ±100V
- ANSI/ESD compliant — meets periodic test requirements per ESD TR53; conforms to ANSI/EOS/ESD S4.1, S7.1, S12.1, S2.1
Frequently Asked Questions
What does the EFM51 measure?
The EFM51 measures electrostatic field strength and static voltages within ±20kV (20,000V). It calculates field strength in V/m at four selectable distances (1cm, 5cm, 10cm, 20cm) and displays results on a 12-digit alphanumeric LCD.
Can the EFM51 test ionizer performance?
Yes — the EFM51 can be used with the optional EFM51.CPS Charge Plate Set to verify ionizer efficiency and offset voltage. The kit measures static decay times from ±1,000V to ±100V. The Charge Plate Set is sold separately.
What standards does the EFM51 comply with?
The EFM51 meets periodic test requirements per Compliance Verification ESD TR53 and conforms to ANSI/EOS/ESD standards S4.1, S7.1, S12.1, and S2.1.
What is included with the EFM51?
The EFM51 ships with a storage bag, ground cable, and clip. The EFM51.CPS Charge Plate Set for ionizer testing is available separately.
