Ammeter

NP48, NP72, NP96, NP80B series analog meter/panel meter/ pointer analog meter  

Introduction: 

NP48, NP72, NP96, NP80B series products are electronic magnetic type, adopting rejecting structure. It consists of measuring mechanism and indication device with fire-proof type of cover, ABS material, safe measuring terminal and highly efficient wiring mode. Besides, it also adopts the printed dia plate and crystal cover, which makes it aesthetic, generous and extensive.

Product range: Ammeter, voltmeter, frequency meter, active power meter, reactive power meter, power factor meter.

Technical parameters:

Assembly Position: The instrument is suitable for vertically mounted, it is permitted to incline ±5°, unless otherwise specified.

Overshoot and damping time: Overshoot usually means the instrument with deflection angle less than 180°, and the overshoot not exceed the 20% of the scale length. For other instruments, not exceed 25%.

Damping time =4S, means measurement for the final indication of the indication device at the 2/3 of the scale forced by sudden power and the deviated final static location of the indication device not exceed 1.5% of the scale at any time after the 4s.

Storage temperature range:-40?~+70?

Working environment: The reference ambient temperature is 23?±2? and the relative humidity is 25%~85%. The working environment temperature is -20?~+40? and the relative humidity is not exceeding 95%, and no breakdown if there is no ash and corrosive gas in the air.

AC voltage test: No electrical breakdown and flashover after frequency of 50Hz sine wave alternative voltage of 2kV lasted 1 min.

Isolation strength:>20MO/DC500V

Zero adjusting device: Except for the non-mechanism zero-reading instrument, all of other instruments are equipped with front zero adjusting device, used for adjusting the mechanism zero settings for the instrument.

Overload current meter: The overload multiples normally is one and two times, and we can provide special offer for 1.5 times, 1.5 times, 3 times, 4 times, 5 times and 6 times overload according to user’s need. Its function is to indicate the short-time general value of the current> rated current, to protect the instrument, for instance, the start current when the electromotor starts.

Specification and accuracy:

Application: 

With the advantages of the direct indication of the variation trend of the measured electrical quantity and convenient reading, it is mainly applied into the electrical equipment of industrial and mining area, new energy area, petrochemical area, transportation and shipping area, aeronautics and astronautics area and power transmission and distribution area, featured with simple construction, easy installation, clean printing, aesthetic and generous outlook and wide vision.

Warranty: 

We guarantee free reparation and change for the meter if found any unconformity with the standard, under the circumstance of that the users operate fully complying with this instructions and complete seal after delivery within 18 months.