Опис
Ф4104-М1 microohmmeter is intended for measuring direct current electrical resistance.
The microohmmeter is used during commissioning and electrical installation work in any industry.
The microohmmeter is manufactured in accordance with the requirements of the Technical Regulation of legally regulated measuring equipment (hereinafter referred to as the Technical Regulation), approved by the Resolution of the Cabinet of Ministers of Ukraine dated 13.01.2016 No. 94, DSTU OIML D 11:2012 Metrology. Electronic measuring devices. General technical requirements, Technical regulations on electromagnetic compatibility of equipment, approved by the resolution of the Cabinet of Ministers of Ukraine dated 16.12.2015 No. 1077, DSTU EN 61326-1:2016 Electrical equipment for measurement, control and laboratory use. Requirements for electromagnetic compatibility. Part 1. General requirements and DSTU EN 61010-1.
Technical characteristics
The measurement ranges, the current in the measured resistance, the duration of the pulse of the measuring current are given in the table:
| Measuring range |
Current in the measured resistance, А |
The duration of the pulse of the measuring current, ms, no more | ||
| min | max | |||
| 0-100 mW, 0-1 mW, 0-10 mW,
0-100 mW, 0-1 W, 0-10 W, 0-100 W, 0-1 kW, 0-10 kW, 0-100 kW, 0-1 MW, 0-10 MW |
3
0,6 0,6×10 -3 0,6×10 -6 |
4
0,8 0,8×10 -3 0,8×10 -6 |
160 800 постійний струм постійний струм |
|
Accuracy class according to DSTU OIMLR 34:2014 Metrology. Accuracy classes of measuring equipment (OIMLR 34:1979, IDT).: 1.5 on all ranges except: (0-1) mW, (0-10) mW, (0-100) mW, (0-1) W with accuracy class 2.5 and (0-100) mW with accuracy class 4.0
The time to establish the operating mode of the microohmmeter is no more than 1 min.
Duration of continuous work, not less than 8 hours. Break time before re-activation, at least 5 min. The duration of continuous operation from the built-in power source is limited by the capacity of the electrochemical current source.
The microohmmeter is powered by:
– from an alternating current network with a voltage of (220 ± 22) V, a frequency of (50 ± 0.5) Hz, (60 ± 0.5) Hz and the presence of harmonics up to 5%;
– from an alternating current network with a voltage of (220 ± 11) V, a frequency of (400 ± 10) Hz and the presence of harmonics up to 5%;
– from electrochemical DC power sources (nine A373 cells) at a voltage of (12+3-1.5) V.
Power consumption from the alternating current network – no more than 4 V×A.
Current consumption from electrochemical direct current sources is no more than 120 mA.
Working conditions of application:
- ambient air temperature from minus 30 ºС to plus 50 ºС;
- relative air humidity is 95% at a temperature of 30 ºС.
The degree of protection of the microohmmeter housing is IP42 according to DSTU EN 60529:2014 Degrees of protection provided by covers (IR Code).
The overall dimensions of the microohmmeter are not more than 305 mm x 125 mm x 155 mm.
Weight of the microohmmeter, not more than 2.3 kg;
The weight of the bag with accessories, no more than 2.1 kg.
