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HIGH-POTENTIAL DC AND AC METERS ITV-140R SERIES

Delivery time 30 days
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Specifications
Equipment

The operating range of the measured currents is shown in Table 1.

Table 1

 

Meter version

ITV-140R-3

ITV-140R-9

ITV-140R-30

Working range of measured currents, mA

0.010 - 3.000

0.030 - 9,000

0.10 - 30.00

 

NOTE - Meters measure the average (rectified average) DC value and AC RMS value with a frequency of 50-60 Hz.

AC bandwidth, Hz - 0-1000

 

Input resistances of BV are given in table 2.

table 2

 

Meter version

ITV-140R-3

ITV-140R-9

ITV-140R-30

Input impedance, Ohm

232

78

23

 

The limit of the absolute measurement error in the operating range of the
measured currents and temperatures is determined by the formula:

                                                                   D = 0.01 ∙ i x + 5 e.m.r., (1)

                   where, i x - the value of the measured current, mA; e.m. r. - unit of the least significant digit.

Discreteness of counting, mA - 0.001

Speed ​​- two measurements per second

Frequency range of the radio channel, MHz, 845-945

Number of frequency channels 16

Transmitter power, mW 1

Radio communication range (open space), m - 5-10

The meter can withstand an overload by a single current pulse with a duration of no more than 10 ms and an amplitude of no more than 150 A.

BV and MI are powered from built-in Ni - MH AA batteries with a voltage of 1.2 V and a capacity of 2.1 A ∙ h.

Supply voltage - 5V, duration of continuous work without recharging - at least 8 hours.

Dimensions / weight:

  • high-potential block ITV-140R-BV - diameter 170x100 mm / 1 kg;
  • indicator module ITV3-MI - 95x190x40mm / 0.5 kg

Product service life - 10 years

Designation

Name

Qty.

Note

ITV-140R-BV.00.00.00

 High-potential block

ITV-140R-BV

1

 

ITV-140R-MI.00.00.00

Indicator module

ITV-140R-MI

1

 

-

Power supply stabilized

2

Charger
(+ 12V stab., 300-500 mA)

 

Rechargeable Ni-MH rechargeable battery, size AA, 1.2 V, 1800 mAh

8

 

-

Three-pin cable socket

1

For terminating output coaxial cable

ITV-140R.00.00.00RE

Manual

1

 

High-potential DC and AC current meters ITV-140R series (hereinafter referred to as "meters") are designed to measure DC and AC sinusoidal currents with a frequency of 50-60 Hz and up to 3 mA (ITV-140R-3), 9 mA (ITV-140R- 9) and 30 mA (ITV-140R-30) in circuits at potential up to 140 kV.

 A feature of the meters is the absence of a galvanic connection between the high-potential measuring and low-potential indicator circuits, which ensures complete operational safety.

The meters are intended for use as part of indoor test facilities in the temperature range from + 5 ° C to + 40 ° C, relative humidity of the ambient air up to 90% at 25 ° C and pressure from 630 to 800 mm Hg. Art.

Shock, vibration, presence of corrosive liquid vapors (acids, alkalis, etc.) in the air are not allowed at the installation site.

The product can be operated by one operator from among the persons of electrical personnel who have permission to perform work in existing electrical installations with voltages up to and above 1000 V.

The version of the meters corresponds to group 3 of devices according to GOST 22261.