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Electrical measuring instruments >> analog panel meters >> ammeters and voltmeters >> alternating current high-frequency (to 1000Hz and more) >> size 80х80mm

Ammeter T4

999 RUB
250 UAH
53 pieces

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T4 ammeter

Also this device can be referred to: T-4, T 4.


T4 ammeter shield compact one limiting with separate thermocouple a thermoelectric device with a direct-reading system, and is intended to measure the current in high frequency circuits.

Dimensions - 80×80×50 mm.

Accuracy class - 2,5.

Shaking and shock resistance.


T4 ammeters are used as transmitters antenna ammeters in stationary and movable type.


Contact thermocouples, depending on the measuring range are available in two types:

- T-1 for ammeters with measuring range up to 10 A, inclusive;

- T -2 for ammeters with measuring range of current over 10 A.


Specifications T4:


Frequency - from 0,3 MHz to 7,5 MHz.

Measurement range - 0,5 A; 1 A; 2 A; 3 A; 5 A; 10 A; 20 A; 30 A; 50 A.


The basic error of the instruments:

- at 50 Hz - no more than ±2,5% of the nominal value of the scale;

- at frequencies from 0,3 MHz to 7,5 MHz - no more than ±5%.


Dials are quadratic and compressed in its initial part.

Working part of the scale - from 20% to 100%.

Operating position - vertical and horizontal.

Meter case - sprayproof.



- ammeter T4 - 0,240 kg;

- thermocouple T-1 - 0,18 kg;

- thermocouple T-2 - 0,37 kg.


As metals forming a thermocouple type temperature sensors in T-1 and T-2 used gold-palladium alloys and platinum-iridium.


Operating conditions ammeters T4:


The ambient air temperature - from -40° C to +60° C.

Relative humidity - 98%.


Ammeter T4 produced in a plastic housing for recessed mounting. T4 meters must be installed on the non-iron panels.

Photos: Ammeter T4

T4 device image.
T4 device image.
T4 front view (scale).
T4 front view (scale).
T4 side view (casing depth).
T4 side view (casing depth).
T4 rear view (connection).
T4 rear view (connection).
T4 overhead view.
T4 overhead view.