Product pictures
HM2305 5kv insulation resistance tester
Technical Specifications
- Display: Liquid crystal display insulation resistance range:(Max.1200 counts) VAC/DC range: (Max.630counts) Bar graph: Max.36points DAR/PI value:Max.9.99 Time:Max.99.59
- Low battery warning: Battery symbol (in 4 levels)
- Overrange indication: "OL" mark appears on insulation resistance range.
- Auto-ranging: Range shifts to upper range:1000 counts
- Range shifts to lower range:80 counts
- (Only on the insulation resistance range)
- Auto-power-off: The instrument will be powered off if there is no switch or button operation for 10 min.(This function does not work during a measurement.)
- Altitude: 2000m or less
- Temperature ＆ humidity range(guaranteed accuracy):
- 23℃±5℃/Relative humidity 85% or less(no condensation)
- Operating temperature ＆ humidity range:
- 0℃ to 40 ℃/Relative humidity 85% or less (no condensation)
- Storage temperature＆humidity range:
- -20℃ to ± 60%/ Relative humidity75% or less(no condensation)
- Overload protection: Insulation resistance range: AC 1200V/10sec. Voltage range:AC720V/10sec.
- Withstand voltage: AC5160V(50/60Hz)5sec.(Between electrical circuit and enclosure)
- Insulation resistance: 1000MΩ or more/DC1000V(Between electrical circuit and enclosure)
- Dimension: 177(L) ×226(W) ×100(D)mm
- Weight: ****:approx. 1.9kg(battery included)
- Power source: DC12V: LR14(Alkaline battery size C)x8pcs
Use of Guard terminal
When measuring the insulation resistance of a cable, leakage current flowing on the insulator are mixed and the current flowing inside the insulator are mixed and may cause error in insulation resistance value. Ln order to prevent such error, wind a conductive wire around the point where leakage current flows. Then connect it to the Guard terminal. This is to move out the surface leakage resistance of the cable insulation to measure only the volume resistance of insulator. Make sure to use the Guard cord supplied with this instrument to connect the instrument to Guard terminal.
*It is possible to move out the surface leakage resistance of the insulation and measure only the volume resistance by using the Guard terminal. This is helpful when performing tests in humid air.
1 Backlight function
This function to facilitate working at dimly illuminated location or at nighttime work.
Press the backlight button when the range switch is at any position other than"OFF". Then backlight will light up for about 60 sec, and then turn off automatically.(The light will not turn off automatically during a measurement.)
2Auto-power-off function
The instrument will automatically turn itself off if there is no function change or button press for about 10 min. To return to the normal mode, turn the Range swich to OFF position once, and then to any desired position. (This function does not work during a measurement or while the instrument is giving an audible and visible live circuit warning.)
Battery replacement
- Set the Range switch to "OFF" position, and disconnect the test leads form the instrument.
- Loosen the Battery compartment cover-fixing screws, and remove the Battey compartment cover. Remove all eight batteries and replace them with new ones.
- After replacing batteries, be sure to tighten up the screw for the Battery compartment cover.
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