
ETCR
Efficiency, Trustworthy, Consistency, Reliability

Overview
- ETCR2100A+ Clamp Earth Ground Resistance Tester is widely used for measuring grounding resistance in power substations, telecommunications, meteorology, oilfields, construction, and various industrial electrical equipment. When testing a grounding system with a loop, it does not require disconnecting the grounding down lead or using auxiliary electrodes, making operation safe, fast, and simple. The tester can also detect ground faults that traditional methods cannot measure. Since it measures the combined resistance of the grounding body and grounding lead, it is especially effective in applications where conventional testing methods are not applicable.
- ETCR2100A+ Clamp Earth Ground Resistance Tester Features:
- Instant start-up for immediate testing, no waiting required
- Upgraded relay self-test mode with advanced processing algorithms
- Lightweight, ergonomic design for comfortable use
- Intuitive six-button panel for user-friendly operation
- Audible and visual alarms with “beep-beep-beep” alert sound
- Interference signal detection and indication with corresponding alarm tone
- Measurement range: 0.01O – 200O; Data storage capacity: 99 records
- Low power consumption; maximum operating current less than 50mA
- The ETCR2100A+ is designed for measuring loop resistance and is not suitable for single-point grounding tests. For single-point grounding measurements, please choose one of the following models from our store: ETCR3000, ETCR3040, ETCR3000B, ETCR3100C, or ETCR3200C.
Specific Application Case Examples of an Earth Ground Resistance Tester

Power Substations
Verifies grounding resistance of transformers, switchgear, and transmission towers to ensure lightning and fault currents safely dissipate.

Construction Sites
Checks temporary grounding systems for cranes, generators, and site offices to comply with safety standards.

Telecommunication Sites
Measures ground resistance of telecom towers and base stations for reliable signal transmission and lightning protection.

Residential and Commercial Buildings
Tests grounding electrodes, rods, and loops to meet electrical code compliance and improve safety against faults.
ETCR2100A+ Ground Resistance Meter Technical Specifications
![]() ETCR2100A+ | ![]() ETCR2100+ | ![]() ETCR2100C+ | ![]() ETCR2000A+ | ![]() ETCR2000+ | ![]() ETCR2000C+ | |
|---|---|---|---|---|---|---|
| Customer Reviews | — | — | — | — | — | — |
| Price | — | — | — | — | — | — |
| Clamp Size | F32mm | F32mm | F32mm | 65mm×32mm | 65mm×32mm | 65mm×32mm |
| Resistance Range | 0.010O~200O | 0.010O~1200O | 0.010O~1200O | 0.010O~200O | 0.010O~1200O | 0.010O~1200O |
| Current Range | ? | ? | 0.00mA~20.0A | ? | ? | 0.00mA~20.0A |

Overview
- ETCR2100A+ Clamp Earth Ground Resistance Tester is widely used for measuring grounding resistance in power substations, telecommunications, meteorology, oilfields, construction, and various industrial electrical equipment. When testing a grounding system with a loop, it does not require disconnecting the grounding down lead or using auxiliary electrodes, making operation safe, fast, and simple. The tester can also detect ground faults that traditional methods cannot measure. Since it measures the combined resistance of the grounding body and grounding lead, it is especially effective in applications where conventional testing methods are not applicable.
- ETCR2100A+ Clamp Earth Ground Resistance Tester Features:
- Instant start-up for immediate testing, no waiting required
- Upgraded relay self-test mode with advanced processing algorithms
- Lightweight, ergonomic design for comfortable use
- Intuitive six-button panel for user-friendly operation
- Audible and visual alarms with “beep-beep-beep” alert sound
- Interference signal detection and indication with corresponding alarm tone
- Measurement range: 0.01O – 200O; Data storage capacity: 99 records
- Low power consumption; maximum operating current less than 50mA
- The ETCR2100A+ is designed for measuring loop resistance and is not suitable for single-point grounding tests. For single-point grounding measurements, please choose one of the following models from our store: ETCR3000, ETCR3040, ETCR3000B, ETCR3100C, or ETCR3200C.
Specific Application Case Examples of an Earth Ground Resistance Tester

Power Substations
Verifies grounding resistance of transformers, switchgear, and transmission towers to ensure lightning and fault currents safely dissipate.

Construction Sites
Checks temporary grounding systems for cranes, generators, and site offices to comply with safety standards.

Telecommunication Sites
Measures ground resistance of telecom towers and base stations for reliable signal transmission and lightning protection.

Residential and Commercial Buildings
Tests grounding electrodes, rods, and loops to meet electrical code compliance and improve safety against faults.
ETCR2100A+ Ground Resistance Meter Technical Specifications
| Function | Ground resistance test, Loop resistance test |
| Resistance Range | 0.010O-200O |
| Resolution | 0.001O |
| Power Supply | DC: 6V ( 4 PCS of LR6 Alkaline batteries) |
| Clamp Size | F32mm |
| LCD Size | 4 Digits LCD display, Screen : 47mm(L)×28.5mm(W) |
| Accuracy | ±1%rdg ± 0.01O |
| Data Storage | 99 sets |
| Auto Power-Off | Automatically power off after 5 minutes without any operate |
| Power Consumption | =50mA, Continuously working for 30 hours |
| Working Environment | -20?~55? 20%rh~80%rh |
| Store Environment | -20?~60?; below 90%rh |
| Alarm Threshold Setting Range | Resistance: 1O~199O |
| Audible and Visible Alarm | "Beep-beep-beep” alarm sound, alarm symbol flashing, press AL key to turn on/off and setting |
| Interference Signal Recognitio | "Beep-beep-beep” indicator,NOISE symbol blinking |
| Protection Level | Double insulation |
| Structural Feature | Clamp CT |
| Shift | Automatic shift |
| External Magnetic Field | <40A/m |
| External Electrical Field | <1V/m |
| Single Measurement Time | 0.5 second |
| Resistance Measure Frequency | >1KHz |
| Measured Current Frequency | 50/60Hz Automatic |
| Low Battery Voltage Indicator | When the battery voltage is lower than 5.3V, the low battery voltage symbol is displayed |
| Storage Full Indication | Storage data full of 99 sets, flashed display "MEM" symbol |
| Over Range Indication | Exceed range indication “OLO”, “L0.01” or “OL A” |
| Tester Weight | 1030g (with batteries) |
| Tester Dimension | 260mm×90mm×66mm |
![]() ETCR2100A+ | ![]() ETCR2100+ | ![]() ETCR2100C+ | ![]() ETCR2000A+ | ![]() ETCR2000+ | ![]() ETCR2000C+ | |
|---|---|---|---|---|---|---|
| Customer Reviews | — | — | — | — | — | — |
| Price | — | — | — | — | — | — |
| Clamp Size | F32mm | F32mm | F32mm | 65mm×32mm | 65mm×32mm | 65mm×32mm |
| Resistance Range | 0.010O~200O | 0.010O~1200O | 0.010O~1200O | 0.010O~200O | 0.010O~1200O | 0.010O~1200O |
| Current Range | ? | ? | 0.00mA~20.0A | ? | ? | 0.00mA~20.0A |
ETCR
Efficiency, Trustworthy, Consistency, Reliability


































