描述
- ETCR3000B grounding resistance soil resistivity tester consists of host, monitoring software, test lines, auxiliary grounding rods, and communication lines. Host large LCD display, white screen backlight. At the same time can store 300 sets of data
- The ETCR3000B earth resistance soil resistivity tester measures the grounding resistance using the precision 4-wire method, 3-wire method, and simple 2-wire method. Grounding resistance range: 0.00Ω～30.00kΩ, soil resistivity range: 0.00Ωm～9000kΩm, grounding voltage range: AC 0～600V.
- Data retention: "HOLD" symbol display; Data Review: "READ" Symbol Display; Overflow display: "OL" symbol display; Working environment: -10 °C ~ 40 °C; 80% rh below; Storage environment: -20 °C ~ 60 °C; 70% rh below; Line voltage: Measurement to ground voltage: AC 600V or less
- Overload protection: Grounding resistance: AC 280V/3 seconds between E-P and E-C ports; Electromagnetic characteristics: IEC61010-4-3, radio frequency electromagnetic field ≤ 1V/m; Suitable for safety regulations: IEC61010-1 (CAT III 300V, CAT IV 150V, pollution degree 2); IEC61010-031; IEC61557-1 (grounding resistance); IEC61557-5 (soil resistivity); JJG 366-2004.
- Data upload function: With RS232 interface, software monitoring, storage data can be uploaded to the computer, save the print; Low battery: When the battery voltage drops to about 7.5V, the battery voltage is low and the symbol is displayed to remind you to replace the battery;
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Function: Earth resistance measurement, Earth voltage measurement, Low resistance measurementPower Supply: DC 9V (Zi-Mn dry battery R14S 1.5V 6 PCS, continuous standby for 300 hours )Measuring Mode: Precise 3-pole measurement, simple 2-pole measurementMeasuring Method: Earth ground resistance: constant current change-pole method, measurement current 3mA Max，820Hz；Voltage to ground: average value rectificationData Mode: Average value, maximum, minimumWire Resistance Verification: Avoid error caused by testing wire such as failed to be fully inserted into tester interface or by poor contact or by user’ s replacing or lengthening testing wires, making it more accurate for earth ground resistance measurement.Display Mode: 4-digital super-large LCD display, blue screen backlight, LCD dimension: 128mm×75mm；Display field：124mm×67mmMeasuring Indication: During measurement, LED flash indicator, LCD count down displayEarth Ground Resistance: Range：0.01Ω～2000Ω；Resolution：0.01Ω；Accuracy：±1%rdg±3dgtEarth Ground Voltage: Range：0V～600V AC；Resolution：1V；Accuracy：±1%rdg±3dgtTester Dimension: LWH：215mm×190mm×95mmTesting Wires: Three wires: each for Red 20m, Yellow 10m, and Green 5mSimple Testing Wire: 2 wires: each for Red 1.5m and Green 1.5mAuxiliary Earthing Rod: 2 PCS: Φ10mm×150mmMeasuring Rate: Earth voltage measurement: 3 times/second; Earth resistance: 5 seconds/timeMeasuring Times: Over 5000 times (20Ω range measuring 10Ω for one time and repeat after 25 seconds)
