Q96-ZCO Q72-ZCO Q144-ZCO Ammeter DC

                                                             Q96-ZCO Q72-ZCO Q144-ZCO Ammeter DC

Overview

Q96-ZCO Q72-ZCO Q144-ZCO Ammeter DC is an instrument used to measure the strength of the current in a DC circuit. When a large current needs to be measured, a low resistance with a certain resistance value can be connected in parallel with the two input ends to expand the range. The zero point of its scale is generally placed on the far left of the dial. The selection of the commonly used DC ammeter is the same as that of the DC voltmeter. If a shunt is used, the shunt must be used together with the ammeter. The wiring of the DC ammeter is polar, and the positive pole of the power supply (the pole from which the current flows) must be connected to the + terminal of the ammeter, and the – terminal of the ammeter must be connected to the negative pole of the power supply (the pole where the current flows). When the polarity of the DC meter is not clear, the DC voltage regulator can be used to reduce the voltage and current and temporarily connect it. When the pointer is in the correct direction, the wiring is correct. When the direction is opposite, the positive and negative electrodes (﹢, ﹣) can be reversed and connected. Connection of DC ammeter.

Working principle of Q96-ZCO Q72-ZCO Q144-ZCO Ammeter DC

The DC ammeter mainly uses the magnetoelectric system or the electrodynamic system measurement mechanism. The basic measurement of these measurement mechanisms is current, which can be used to directly measure small currents. For large values of DC current, the magnetoelectric measuring mechanism uses a shunt, that is, a parallel resistor.

The role of the DC ammeter is to shunt most of the current being measured. For currents below about 10A, the built-in shunt is often used; for larger current values, a dedicated shunt is used.

A four-terminal structure is adopted, with two current terminals and two potential terminals. The selection conditions for the resistance value are: when the nominal current passes through the shunt, the voltage between the potential terminals is 45mV or 75mV; the voltage value is measured with a magnetoelectric millivoltmeter with a range of 45mV or 75mV, and the dial is on the dial. It is scaled by the current value.

Features of Q96-ZCO Q72-ZCO Q144-ZCO Ammeter DC

The DC ammeter is used in the laboratory to measure the current in the DC circuit.

     The DC ammeter has a measurement range of 0 to 0.6 amps and 0 to 3 amps. General DC ammeter specifications:

     . The instrument is a magnetoelectric instrument.

     . The accuracy of the instrument is 2.5, that is, when used under specified conditions, the maximum error does not exceed ±2.5% of the full scale value.

     . The specified working conditions of the instrument are: the ambient temperature is 0° to +40°C, and the relative humidity does not exceed 85%.

     . The normal temperature of the instrument in use is 20°±5°C, and the additional error caused by each 10°C change in the ambient temperature from the normal temperature (20°C) is not greater than 2.5%.

     . The symbols on the instrument panel are explained as follows:

     2.5 means that the accuracy of the meter is 2.5.

     A means that the meter is an ammeter.

     Before use, you should check whether the pointer is aligned with the zero point. If there is any deviation, you need to use the zero point adjuster to adjust the pointer to the zero position. When adjusting, you only need to rotate the zero point adjustment knob in the middle of the front of the cover.

     Note that under no circumstances should the ammeter be directly connected to the two poles of the battery to avoid burnout.

Main tech data of Q96-ZCO Q72-ZCO Q144-ZCO Ammeter DC

Accuracy: Class 1.5

Ambient temperature range: -25℃- +55℃

Shell protection: according to IP42/52

Vibration resistance: 0.7g

Front panel size: 96x96mm, 72x72mm, 48x48mm, 240x240mm, 190x190mm

Meter deflection angle: 90° 240°

Instrument scale: a black scale on a white background can draw a red line if the set value is required.

Instrument installation: fixed with two diagonal brackets

Ammeter limit can be customized + - scale

Note: Any special design or question of Q96-ZCO Q72-ZCO Q144-ZCO Ammeter DC, kindly contact the manufacturer for more details.