Ammeter M145, voltmeter, M145, M145 kiloampermetr (M-145, M 145, m145, m-145, m 145)
For measuring the current and the DC voltage in networks of marine power plants.
Accuracy class 2.5.
Resistant to shaking, vibration, shock resistant.
Ammeter M145, voltmeter, M145, M145 kiloampermetr designed to measure current and voltage direct current network of marine power plants.
Response time less than 3s. Residual deviation pointer device from zero scale for smooth traverse a pointer to that point from the outermost point of it is less than 1mm. Limit of permissible variation readings equal to the limit of permissible basic error.
Measurement range ammeters M145 0 - 0.5 A, 0 - 1 A, 0 - 2A, 0 - 5 A, 0 - 10A, 0 - 20A - with the direct inclusion, 0 - 30A, 0 - 50A, 0 - 75A, 0 - 100A; 0 - 150 A, 0 - 200A, 0 - 300 A, 0 - 500A, 0 - 750A, 0 - 1000 A, 0 - 1500 A-when you turn on the external shunt with 75mV.
Parameters overload ammeter shown in Table. 1, the parameters of voltmeters - Table. 2 (direct inclusion).
Operating position device ammeters M145, voltmeters, M145, M145 kiloampermetry vertical. Changing readings caused deviation of ambient temperature from normal (within the operating temperature range) for every 10 K, does not exceed ± 0,5% of full scale of the measuring range - for voltmeters, ± 1,2% of full scale of the measuring range - for ammeters. Change under the influence of reading external constant homogeneous magnetic field with induction of 0.5 mT is less than ± 0,5% of full scale range. Measuring system M145 magnetoelectric type moving part on cores, hermetic performance. Reliabilities for 4000ch continuous operation without monitoring and maintenance of at least 0.89. In terms of resistance to climatic influences device complies with GOST.
Table 1 Parameters overload ammeter M145 and M145 kiloampermetr
Table 2 Parameters voltmeters M145