Quotation for Double Clamp Grounding Resistance Meter

Quotation for Double Clamp Grounding Resistance MeterQuotation for Double Clamp Grounding Resistance MeterModel: M406864 Library Number: M406864 View hh

Technical Specifications

Measurement of functional grounding resistance, soil resistivity, DC resistance, conducting resistance, equipotential bonding resistance, grounding voltage, AC current, and leakage current

Power supply DC 7.4V 1.8Ah rechargeable lithium battery

Backlight controllable backlight, suitable for use in dark fields

Measurement methods include four wire, three wire, simple two wire, selection method, and double clamp method for measuring grounding resistance

Measurement method two, three, four wire method: pole changing method, short circuit measurement current 20mA Max

Selection method measurement: pole changing method, short circuit measurement current 20mA Max

Double clamp method: non-contact mutual inductance measurement method, testing current 1mA Max

Soil resistivity: Quadrupole method (Wenner method)

DC resistance: pole changing method

AC current: average rectification (clamp)

Ground voltage: average rectification (between P (S) - ES interface)

Measurement of grounding resistance (Re) and DC resistance using the range of 2-3 wires method:

0.000Ω to 30000Ω

Selection method for measuring grounding resistance (Re): 0.00 Ω~3000 Ω

Double clamp method for measuring grounding resistance (Re): 0.01 Ω~200 Ω

Soil resistivity (ρ): 0.00 Ω m~9000k Ω m

Grounding voltage (50Hz/60Hz): AC 0.0~100.0V

AC current (50Hz/60Hz): AC 0.00mA~300.0A

Resolution measurement of grounding resistance (Re) and DC resistance using the 2-3 line method:

0.01Ω (0.000Ω to 29.999Ω)

0.01Ω (30.00Ω to 299.99Ω)

0.1Ω (300.0Ω to 2999.9Ω)

1Ω (3000Ω to 30000Ω)

Selection method for measuring grounding resistance (Re):

0.01Ω (0.00Ω to 29.99Ω)

0.1Ω (30.0Ω to 299.9Ω)

1Ω (300Ω to 3000Ω)

Double clamp method for measuring grounding resistance (Re):

0.01Ω (0.01Ω to 0.99Ω)

0.1Ω (1.0Ω to 29.9Ω)

1Ω (30Ω to 200Ω)

Soil resistivity (ρ):

0.01Ωm（0.00Ωm～99.99Ωm）

0.1Ωm（100.0Ωm～999.9Ωm）

1Ωm（1000Ωm～9999Ωm）

10Ωm（10.00kΩm ～99.99kΩm）

100Ωm（100.0kΩm～999.9kΩm）

1kΩm（1000kΩm～9000kΩm）

Grounding voltage (50Hz/60Hz): 0.1V

AC current (50Hz/60Hz): 0.01mA

Precision measurement of grounding resistance (Re) and DC resistance (R -) using the 2-3 wire method:

±2%rdg±0.05Ω （0.000Ω～29.999Ω）

±2%rdg±3dgt （30.00Ω～299.99Ω）

±2%rdg±3dgt （300.0Ω～2999.9Ω）

±4%rdg±3dgt （3.000kΩ～30.00kΩ）

Note: 1. The additional error at rC max or rP max is ≤± 5% rdg ± 5dgt. (rC max:4kΩ+100R＜50kΩ, rP max:4kΩ+100R＜50kΩ)

2. The additional error at 5V voltage is ≤± 5% rdg ± 5dgt.

Selection method for measuring grounding resistance (Re):

±2%rdg±5dgt（0.00Ω～29.99Ω）

±2%rdg±3dgt（30.0Ω～299.9Ω）

±2%rdg±3dgt （300Ω～3000Ω）

Double clamp method for measuring grounding resistance (Re):

±10%rdg±5dgt（0.01Ω～100Ω）

±20%rdg±5dgt（101Ω～200Ω）

Soil resistivity (ρ): determined by the measurement accuracy of R

（ρ=2πaR a:1 m～100m；π=3.14）

Grounding voltage (50Hz/60Hz): ± 2% rdg ± 3dgt

AC current (50Hz/60Hz): ± 2% rdg ± 3dgt

Test voltage waveform sine wave

Test frequency: 128Hz/111Hz/105Hz/94Hz (automatic frequency selection)

Short circuit test current AC 20mA max

Open circuit test voltage AC 40V max

Electrode spacing range of 1m to 100m

Display mode: 6-digit large LCD display with backlight

Measurement indicator: LED flashing during measurement, LCD countdown display

LCD size 128mm × 75mm

LCD display area 124mm × 67mm

Equipment dimensions: Instrument length, width, and height: approximately 320mm × 275mm × 145mm

Current clamp length, width, and height: approximately 220mm × 100mm × 27mm

Packaging dimensions: outer packaging length, width, and height: approximately 400mm × 245mm × 335mm

One red 15m, one black 15m, one yellow 10m, and one green 10m test lines

2 simple testing lines: 1 red 1.6m, 1 black 1.6m each

辅助接地棒 4根： φ10mm×150mm

Two current clamps: one CT1 clamp with red and black plugs, and one CT2 clamp with blue and black plugs each

Current clamp diameter is 52mm

Current clamp turn ratio 1000:1

Current clamp lead length 2m

Measurement time AC current: about 2 times/second

Ground voltage: about 2 times/second

Grounding resistance: about 7 seconds/time

Measure more than 5000 times (short circuit test, test once, stop for 30 seconds and then test again)

Measurement of line voltage below AC 100V

The communication interface has a USB interface, and data storage can be uploaded to the computer through software

1 USB communication cable, 1.5m in length

The 'HOLD' symbol indicates data retention when keeping data

2000 sets of data storage, "MEM" storage indicator, displaying the "FULL" symbol indicates that the storage is full

The "READ" symbol indicates when searching for data

When the overflow display range overflows, the "OL" symbol indicates

When using the current clamp low current indication selection method or the double clamp method for measurement, if the current signal received by the CT2 clamp is lower than 0.5mA, the "" symbol will be displayed. At this time, the automatic identification signal of the CT2 current clamp's clamping direction test should be checked, and if the voltage is higher than 5V, the "Noise" symbol will indicate

The auxiliary grounding test has the function of testing the auxiliary grounding resistance value, ranging from 0.00k Ω to 30.00k Ω (100R+rC<50k Ω, 100R+rP<50k Ω)

When the measured value of the alarm function exceeds the alarm set value, an alarm prompt of "beep beep beep beep beep" will appear

When the battery voltage is insufficient, the low battery voltage symbol is displayed to remind that the battery needs to be charged.

Automatic shutdown after 15 minutes of startup

Power consumption backlight: 25mA Max (separate backlight power consumption)

Standby: 25mA Max (backlight off after power on)

Measurement: 150mA Max (backlight off)

Quality host: 2.66kg (including battery)

Total weight: 7.87kg (including test wire, grounding pin, packaging)

Toolbox design, capable of bearing up to 200kg

Working temperature and humidity -10 ℃ to 40 ℃; Below 80% RH

Storage temperature and humidity -20 ℃~60 ℃; Below 70% RH

Overload protection measurement grounding resistance: AC 280V/3 seconds between ports C (H) - E and P (S) - ES

Insulation resistance above 20M Ω (500V between circuit and casing)

Voltage resistant AC 3700V/rms (between circuit and casing)

Electromagnetic characteristics IEC61326 (EMC)

Suitable for safety regulations IEC61010-1 (CAT III 300V, CAT IV 150V, pollution level 2);

IEC61010-031； IEC61557-1 (Grounding Resistance);

IEC61557-5 (soil resistivity); JJG 366-2004 (Grounding Resistance Meter);

JJG 1054-2009 (clamp type grounding resistance meter).

Packing list:

1 instrument

1 toolkit

4 auxiliary grounding rods

4 test lines (red 15 meters; yellow 10 meters; green 10 meters; black 15 meters)

2 simple testing lines (red 1.6 meters; black 1.6 meters)

Two current clamps

1 set of USB charger and charging cable (communication cable)

1 software CD

1 copy of user manual, warranty card, and certificate of conformity