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INTRODUCTION
| Musktool-ETCR3000A+ Digital Earth Resistance Tester adopt 2-wire method, 3-wire method to measure grounding resistance, grounding voltage. |
Product features
1.The tester body is light, easy to carry and operate. 2.With the function of judge the auxiliary grounding pile, the tester can display the resistance value of the auxiliary grounding pile during testing, which can avoid the error caused by the excessive grounding resistance of the auxiliary grounding pole. |
SPECIFICATION
Measure Range and Accuracy
Measurement Function | Range | Accuracy | Resolution |
Earth Resistance | 0.01Ω～20Ω | ±2%rdg±3dgt (auxiliary earth resistance 100Ω±5%，Voltage to earth＜10V) | 0.01Ω |
0.1Ω～200Ω | 0.1Ω | ||
1Ω～2000Ω | 1Ω | ||
Earth Voltage | 0～200V AC | ±2%rdg±3dgt | 1V |
(Note: 23℃±5℃，below 75%rh)
Technical Specification
Function | Description |
Power Supply | DC9V, R6 AA dry batteryX6PCS |
Measurement Method | Earth resistance: rated current change-pole method, test current 20mA Max; Voltage to earth: average value rectification |
Grounding Resistance | Range：0.10Ω～2000Ω |
Resolution：0.01Ω | |
Accuracy：±2%rdg±3dgt | |
Grounding Voltage | Range：0～200V AC |
Resolution：1V | |
Accuracy：±2%rdg±3dgt | |
Display LCD | LCD:58mmX46mm |
Tester Dimension | 157mm(L)×100mm(W)×66mm(H) |
Weight | Host: about470g; total weight: about 1935g (include accessories) |
Test Indicator | TESTING indicator lighting, indicate that grounding ressitance is testing |
Auxiliary Grounding Indicator | indicator lighting, indicates that the auxiliary grounding electrode is qualified and the test result is accurate. Otherwise, please re-select the auxiliary grounding point. |
Measurement Time | Earth resistance: 15 seconds/time;Voltage to earth : 2 times/second; Current: 2times/s |
Auxiliary Grounding Rod | 2PCS:φ10mm×250mm |
Test Wires | Red 15m, yellow 10m, green 5m, red 1.5m (total 4 pcs wires) |
Line Resistance Verification | Avoid errors caused by the test line not fully inserted into the instrument interface or poor contact or the user replaces the lengthened test line, ensure grounding resistance measurement more accurate |
Auto Shutdown | 3 Minutes after power on, will automatic shutdown without any operation. |
Battery Voltage | While battery voltage decreases to around 7.2V, will display low battery voltage symbol“ ”, and remind to replace the battery. |
Overload Protection | Earth resistance: between each interfaces of E-P,E-C, AC 280V/3 seconds |
Electromagnetic Property | IEC61010-4-3, wireless frequency electromagnetic field≤1V/m |
Working Current | Backlight:56mA Max; Standby: 20mA Max(Backlight close); Measurement:200mA Max(Backlight close) |
Accessories | Tester:1PCS; Grounding rod: 2PCS; Test line:3PCS; Simple test line: 1PCS; Tester bag:1PC |
SELECTION GUIDE
Model | Earth Resistance (Ω) | Selection Method(Ω) | Double Clamp(Ω) | Soil Resistivity(Ωm) | Earth Voltage (V) | AC Current（A） | Data Storage(group) | Remark |
| Musktool-ETCR3000A+ | 0.00~2000 | N | N | N | 0~200 | —— | —— | —— |
| Musktool-ETCR3000+ | 0.00~2000 | N | N | N | 0~200 | 0～100 | —— | —— |
| Musktool-ETCR3000 | 0.00~2000 | N | N | N | 0~600 | N | 400 | —— |
| Musktool-ETCR3000C | 0.00~2000 | N | N | N | 0~600 | N | 400 | waterpoof protection box |
| Musktool-ETCR3000B | 0.00~30000 | N | N | 0.00~9000k | 0~600 | N | 300 | —— |
| Musktool-ETCR3100C | 0.00~30000 | N | N | 0.00~9000k | 0~600 | N | 300 | waterpoof protection box |
| Musktool-ETCR3200 | 0.00~30000 | 0.00~3000 | 0.00~100 | 0.00~9000k | 0.0~100.0 | 0.00~600 | 2000 | —— |
| Musktool-ETCR3200C | 0.00~300000 | 0.00~3000 | 0.00~100 | 0.00~9000k | 0.0~100.0 | 0.00~600 | 2000 | waterpoof protection box |
