Megaohmmeter M1628.1 (M-1628.1, M 1628.1, m1628.1, m-1628.1, m 1628.1)
Megaohmmeter M1628.1 is for short-term (up to 1 min.) Insulation resistance networks of alternating and direct current, under voltages, including those with galvanic connection to AC current through a semiconductor rectifiers, and insulation resistance de-energized AC and DC networks current.
Accuracy class - 2.5.
Vibration, shock resistant.
Technical characteristics of the devices megaohmmeter M1628.1:
Operating temperature range - from -40 º C to +55 º C;
Relative humidity - 100% at +50 º C;
Measuring ranges - 0MOm-2 MW; 0MOm-5MOm;
Voltage range AC or DC:
- 0V-220V (for measuring range 0MOm-2 MW);
- 0V-400V (for measuring range 0MOm-5MOm);
Rated frequency - 50 Hz and 400 Hz;
Rated voltage of the power supply - 127V, 220V, 380V;
M1628.1 scale length - 180 mm;
The angle of the scale - 230 º;
Maximum permissible error of the instrument in the measurement range is ± 2,5% of the length of the scale;
The limit of additional error M1628.1 caused by:
- Changes in the ambient temperature of the normal 20 º C ± 5 º C to any temperature from -40 º C to +55 º C is equal to 1.25% of the length of the scale;
- Input voltage tolerance of ± 10% of nominal equal to 2.5% of the length of the scale;
- Connection to the megger M1628.1 DC network, either directly or through a semiconductor rectifiers (electrically connected to networks of alternating and direct current), equal to 2.5% of the length of the scale;
- Decrease in the voltage controlled network of 30V to zero - equal to 2.5% of the length of the scale;
- Changes in the operating position (tilt) of the device from the normal in any direction up to 45 º - is ± 1,25% of the length of the scale;
The limit of additional error M1628.1 and half amplitude oscillation index:
- Under the influence of a single-component vibration in the frequency range from 1Hz to 60Hz - when maximum acceleration 19.6 m / c 2 - equal to ± 2,5% of the length of the scale;
Dielectric strength between the circuits and the housing M1628.1 - 2kV;
Insulation resistance of electrical circuits against the housing of at least 20 MW;
Response time showing the device does not exceed 3 seconds;
Dimensions M1628.1 - 120h120h126 mm;
Dimensions of additional devices R1828 / 1 R1828.1 / 1 - 112h170h95mm;
Dimensions switches P1828 / 1, P1828.1/1- 132h170h122mm;
M1628.1 weight - not more than 1.3 kg;
Weight of additional devices R1828 / 1 R1828.1 / 1 - not more than 1.8 kg, switches P1828 / 1 P1828.1 / 1 - not more than 1.4 kg;
Full M1628.1 average life of 25 years. The warranty period of 5 years.
Also, this device may have different names: M1628.1 megaommetr, megommetrr M1628.1, M1628.1 megometr, megaometr M1628.1, M1628.1 megametr, megoommetr M1628.1, M1628.1 ohmmeter.