Product Features GDJD-6804 Ground Resistance Tester as follows:
First, the table instead of the traditional manual hand power operating mode, the use of advanced large-scale integrated circuits, application of DC / AC conversion technology will be three side buttons, button four-terminal measurement combined into a new type of ground resistance measurement instrument.
Works inside the grounds of DC / AC inverter DC into AC low frequency constant current through the auxiliary ground electrode C and E analyte composition circuit generates an AC voltage drop on the measured object, the auxiliary ground electrode P fed AC amplifier, and then through the detector into the meter display. With the override switch, available in three different amounts limit: 0 ~ 2Ω, 0 ~ 20Ω, 0 ~ 200Ω.
Second, the use
This table is suitable for electric power, telecommunications, railways, telecommunications, mining and other sectors of various grounding resistance measurement device and measuring the resistance value of low resistance conductor; this table also measure soil resistivity and ground voltage.
Third, the main features:
1, the structure of high-strength aluminum alloy as housing, in order to prevent the circuit frequency, RF interference detection using the phase-locked loop synchronous tracking mode and with a switched-capacitor filter, so that the instrument has good anti-jamming capability.
2, DC / AC conversion technology into AC low-frequency DC constant current in order to measure.
3, allowing the secondary grounding resistance 0 ~ 2KΩ (RC), 0 ~ 40KΩ change between (RP), as to affect the measurement results.
4, the instrument does not need to manually adjust the balance, 3 (1/2) LCD display, in addition to measuring the resistance, it can also measure low resistance conductor resistance, soil resistivity and low AC voltage.
5. Should the test loop nowhere meter shows "1" represents the overflow, in line with the General Survey habits.

GDJD-6804 Ground Resistance Tester Technical parameters:
1, conditions of use
Ambient temperature: 0 ℃ ~ + 45 ℃
Relative humidity: ≤85% RH
2, measuring range and current value (rms)
Resistance: 0 ~ 2Ω (10mA), 2 ~ 20Ω (10mA), 20 ~ 200Ω (1mA)
Voltage: AC 0 ~ 20V
3, the measurement accuracy and resolution
Accuracy: 0 ~ 0.2Ω≤ ± 3% ± 1d
0.2Ω ~ 200Ω≤ ± 1.5% ± 1d
1 ~ 20V≤ ± 3% ± 1d
Resolution: 0.001Ω, 0.01Ω, 0.1Ω, 0.01V
4, auxiliary grounding resistance and the measurement error caused by ground voltage
Allow the auxiliary earthing resistance RC (between C1 and C2)
0 ~ 2Ω, 2 ~ 20Ω ≤1KΩ
20 ~ 200Ω ≤2KΩ
RP (between P1 and P2) <40KΩ error ≤ ± 5%
Allows ground voltage (RMS frequency) ≤5V error ≤ ± 5%
5, power supply and power consumption
Maximum power dissipation ≤2W
DC: 8 × 1.5V (AA, R6) batteries
AC: 220V / 50Hz
6, volume and weight
Volume: 220mm × 200mm × 105mm
Weight: ≤1.4kg Volume: 220mm × 200mm × 105mm
Weight: ≤1.4kg

1. Instrument host 1
2. Comprising a total of four test leads: 1.5m 1.5m red a black line a black line 20m 40m a red one
3. Ground probe 2
4. A power line
5. User's Manual 1
6. A certificate

DJD-6804 Ground Resistance Tester for electric power, telecommunications, railways, telecommunications, mining and other sectors of various grounding resistance measuring device and measuring the resistance value of low resistance conductor; this tab