Overview ETCR2000B+ Explosion Proof Type Clamp Earth Resistance Tester is our company's technology research and development team on technical quality of the pursuit of excellence, through continuous innovation to improve, upgrade with the old product. Its performance is mainly reflected in: Breakthrough in self-test the boot a long time to waiting, start immediately into the test.Breakthrough relay self-test mode, using the most advanced processing algorithms and digital integration technology.Breakthrough the old product to heavy issues, more in line with characteristics of hand-held devices.New design, panel operation with 6 buttons, better performance.Increase sound and light alarm function, with "beep-beep-beep” alarm sound.Increase the interference signal recognition indicator function, with "beep-beep-beep” indicator.Measurement range: 0.01Ω-1200ΩStored data 99 Units. Lower power consumption, Maximum operating current less than 50mA. ETCR2000B + type clamp meter has passed the certification of explosion-proof and met GB3836-2000 explosive gas environment with electrical equipment. The explosion-proof marks is Exia Ⅱ BT3Ga. Explosion-proof qualified number: CE18.2380.It can be applied to the corresponding inflammable and explosive environment. Field Application The application of machine room earth resistance measurement The machine room of telecommunication system normally in the upper deck of the building. It is hard to use the meg-ohm meter to measure. However, ETCR Clamp meters are very convenient to test. The application of substation earth resistance measurement ETCR series clamp meter can use to test the situation of contact and connect of circuit. With the help of one test line, it can be used to test the connect situation of equipment in station and the grounding system. The application of building lightning protection grounding system measurement If the earth poles of the building are independent of each other, the earth resistance can be measured by clamp to testing any of the earth poles, and the earth resistance can also be measured by clamp the building roof lightning arrester.When the measured value is less than the allowable value, the earth electrode is qualified.If the measurement value of the clamp meter is larger than the allowable value, please use ingle earth point method to measurement. From the measuring principle, ETCR series Meter can only measure the loop resistance, the single-point grounding is not measured. However, users are able to use a testing line very near to the earth electrode of the grounding system to artificially create a loop for testing. For details, please read user manuals. Technical Specifications Model ETCR2000B+ Explosion Proof Type Clamp Earth Resistance Tester Resistance Range 0.010Ω-1200Ω Resolution 0.001Ω Power Supply DC: 6V ( 4 PCS of LR6 Alkaline batteries) Clamp Size 65mmX32mm LCD Size 4 Digits LCD display, Screen : 47mm(L)×28.5mm(W) Accuracy ±1%±0.01Ω Data Storage 99 sets Data Upload Function RS232 Interface (Optional) Auto Shutdown 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: 1Ω~199Ω Audible and VisibleAlarm "Beep-beep-beep” alarm sound, alarm symbol flashing, pressALkey 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 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 “OLΩ”, “L0.01” or “OL A” Tester Weight 1100g Tester Dimension 285mm×85mm×56mm EX-Mark Ex ia Ⅱ BT3Ga Explosion-proof Certification CE18.2380 ETCR2000B+ ETCR2000A+ ETCR2000+ ETCR2000C+ ETCR2200 ETCR2000 Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart Customer Reviews — 4.3 out of 5 stars 11 — — — — Price $329.00$329.00 $187.00$187.00 $308.75$308.75 $367.00$367.00 $535.00$535.00 $212.00$212.00 Clamp Size 65mm×32mm 65mm×32mm 65mm×32mm 65mm×32mm 65mm×32mm 55mm×32mm Resistance Range 0.010Ω~1200Ω 0.010Ω~200Ω 0.010Ω~1200Ω 0.010Ω~1200Ω 0.010Ω~1500Ω 0.010Ω-1000Ω Current Range ✘ ✘ ✘ 0.00mA~20.0A 0.00mA~40.0A ✘ ETCR2000X ETCR2100XC ETCR2000A ETCR2100+ ETCR2100A+ ETCR2100C+ Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart Customer Reviews — 5.0 out of 5 stars 2 — 4.6 out of 5 stars 40 4.4 out of 5 stars 113 4.8 out of 5 stars 9 Price $167.00$167.00 $216.00$216.00 $171.00$171.00 $218.00$218.00 $156.50$156.50 $365.00$365.00 Clamp Size 55X32mm 55X32mm 55mm×32mm Φ32mm Φ32mm Φ32mm Resistance Range 0.01-500Ω 0.01-500Ω 0.010Ω~200Ω 0.010Ω~1200Ω 0.010Ω~200Ω 0.010Ω~1200Ω Current Range ✘ 0-20A ✘ ✘ ✘ 0.00mA~20.0A