Technical data
High-potential AC and DC milliammeter ITV-140R
Working range of measureable currents:
Execution of milliammeter
|
ITV-140R3(5)
|
ITV-140R9(10)
|
ITV-140R30
|
Working range of
measureable currents, mA
|
DC
|
0,01 – 7
|
0,02 – 12
|
0,03 – 45
|
AC
|
0,01 – 5
|
0,02 – 10
|
0,03 – 30
|
Note: milliammeters measures the average value of the DC and RMS value of the AC, 50-60 Hz.
Bandwidth on AC – 0-1000 Hz;
Input impedance of High-Potential Unit (HPU):
Execution of milliammeter
|
ITV-140R5
|
ITV-140R10(9)
|
ITV-140R30
|
Input impedance, Ohm
|
110±10
|
65±5
|
36±5
|
Limit of permissible main absolute error of measurement on the working range of the measured currents (RMS of AC and average value of DC, respectively) in the working temperature range defined by the formula:
D=0,01∙ix+ 5 LSB,
- where, ix– the value of the measured current, mA; LSB – least significant bit.
Discrete readings – 0,001 mA;
Speed of measurements – two per second;
Radio frequency range – 845-945 MHz;
The number of frequency channels – 20;
Transmitter power, no more than – 1 mW;
Communication range (open space) – 5-10 m;
The meter withstands overload a single current pulse duration of 10 ms and an amplitude of not more than – 150 A;
Power supply of units – Ni-MH batteries size AA with a nominal voltage of 1.2 V and with capacity (1300-2000) mA∙h;
Supply voltage – 5 V;
Duration of continuous operation without recharging – at least 8 hours.