HTHT234E接地電阻測試HT-234E @HT-234E%

HTHT234E ground resistance test of HT-234E @HT-234E%

Grounding resistance instrument characteristics:

The 1 instrument function

* line, three line, four line resistance measurement

* measurement voltage U

* the wire resistance measurement and automatic zero calibration

Measure resistance coefficient of soil P *

The 2 main parameters measuring voltage: 80V p

* measurement current: 10mA

* measurement frequency: 125Hz

* range: 0 ~ 1999

* resolution: 0.01

* accuracy: 2%

3 instructions and measurement

(1) the operating instructions (see below)

(2) (double measurement of ground resistance measurement)

Double measurement method is very useful, it has the characteristics ofsimple and rapid (shown below)

Figure 3 a pipe has been used as a grounding related, in general thegrounding resistance is very small, so you don't have to put on the linedriving, measuring steps are as follows:

* short circuit test line

* display letters K press SAVE

* press the START key, the first test lead resistance, and then displays the 0 meter instrument has been calibrated, it can be the normal measurement

* were measured by START key

* press the SAVE key storage measurement

* RCL reads the stored value

Low voltage power supply system at home most of the TT mode, the TT system, the HT234 grounding resistance instrument can convenientlymeasure the grounding resistance.

Fig. 4 power supply socket from the measurement of grounding resistance wiring diagram, operation steps. As the voltage and currentare zero line, HT235 grounding resistance instrument in voltage <automatically when 20V interference, voltage, automatic alarm,protection, measurement instrument 20V stop, so even if themisoperation to phase measurement will not damage the instrument.

The three line, four line resistance measurement is similar to the secondmethod, the following are the test chart their.