Ohmmeter M
Offer type: salePublished: 22.08.2015
| Price: | 250 UAH |
| Seller: |  Lantrat Aleksandr |
| Phones: |  +380503522136 Show phone |
| Address: | Ukraine, Poltavs'ka Oblast' |
Ohmmeters M portable designed for measurement of active resistance on direct current with direct reading scale.
Ohmmeter M is designed to operate at ambient temperatures from minus 30 to plus 40°C and relative humidity up to 90% at 30°C.
The accuracy class of the instrument Ohmmeter M of 1.5.
The limit of permissible basic error of the instrument in the measurement range is ±1.5% of scale length. Maximum permissible variation of readings equal to the limit of permissible basic error. The residual deviation of the pointer from the mechanical zero mark for smooth traverse of the pointer to that point the most remote of the scale is less than 0.6 mm.
The limit of additional error device Ohmmeter M caused by changes in ambient temperature (20±5)°C to any temperature in the range from minus 30 to plus 40°C does not exceed ±0.75% of scale length for every 10°C change in temperature. The limit of additional error device caused by the change of position from its normal position in any direction up to 30°, equal to the limit of permissible basic error.
The limit of additional error device Ohmmeter M caused by the influence of an external constant uniform magnetic field with a magnetic induction of 0.5 MT at the most unfavorable direction of the magnetic field is ±1.0% of scale length.
The settling time of reading Ohmmeter M not exceed 4. continuous working Time not more than 1 min off intervals for 4 min.
Insulation between the casing and insulated from the body by direct current electric circuits of the device Ohmmeter Die for 1 min. test voltage is almost sinusoidal frequency of 50 Hz.
The RMS value of the voltage on the 10/100 Ohm and 100/1000/10000 Ohm, 500V, on the limits of 100k/10mom - 2000V. The insulation resistance between the case and isolated DC circuits not less than:
1/40 megohms under normal conditions of use;
2/5 Megohms at 40 °C and relative humidity not more than 80 %;
3/2 MW at an ambient temperature of (20±5)°C and relative humidity of 90 %. Overall dimensions of the device Ohmmeter Me more 125x110x56 mm. unit Weight is not more than 0.5 kg. the Length scale of not less than 82 mm
