Description
Name: 85L1 sheet
Model: 85L1-300mA
Outer size: 65x55mm opening size 55x50mm
Main technical parameters
Name common specification remarks
AC ammeter A:0.5-50A can be directly connected.
A:10/5A-800/5A secondary current through current transformer
KA:1KA-10KA secondary current through current transformer
AC voltmeter V:10V-600V can be connected directly.
KV:1KV-35KV through current transformer through secondary current 100V
DC ammeter A, mA:50, A-500, A 1mA-500mA can be directly connected.
A:1A-15A can be connected directly.
A:15A-750A externally attached shunt 75mV
KA:1KA-3KA externally attached shunt 75mV
DC voltmeter V:3V-600V can be directly connected.
KV:1KV-3KV external fixed value resistor
Measurement range of current voltmeter
This series of products is suitable for measuring current and voltage in power frequency alternating current or direct current.
Structural features:
This series of products use magnetoelectric system internal magnetic structure when measuring DC; AC current, voltmeter is a DC head of internal magnetic structure, attached transistor rectifying circuit device, this device is attached to the meter table with backpack outside, and they are separated from the measuring mechanism in two rooms for maintenance. The cover of the meter housing is made of transparent plexiglass and white plastic.
Conditions of use:
-20 C ~50 C, relative humidity is less than 85% (25 C)
Main technical parameters
The technical specifications of this series of products are fully in line with GB/T676-1998. Technical requirements for direct acting analog indicating electrical measuring instruments and accessories.
The accuracy of the meter is grade 1.5 or 2.5.
Withstand voltage: withstand voltage of sinusoidal wave AC 50Hz, 2KV voltage, lasting one minute.
Damping time: less than 4 seconds
Working position: vertical use.
Direct measurement: 3V; 5V; 7.5V; 10V; 15V; 20V; 30V; 50V; 60V; 75V; 100V; 120V;
The limits of measurement are: 3.6KV; 7.2KV; 12KV; 18KV; 42KV; 15KV; 300KV; 460KV; 450KV; 600KV.
Mutual inductor ratio: 3KF/100V; 6KV/100V; 10KV/100V; 15KV/100V; 30KV/100V; 110KV/100V; 220KV/100V; 300KV/100V; 380KV/100V; 500KV/100V.
Measuring transformer ratio by mutual inductor: 5A/5A; 10A/5A; 15A/5A; 20A/5A; 30A/5A; 50/5A; 75/5A; 100A/5A; 150A/5A; 200A/5A; 250A/5A;
The current, voltage, power, power factor and frequency meter are magnetoelectric series instruments. It has the advantages of high sensitivity, low power consumption, uniform calibration and good damping. It mainly uses various high and low voltage switchgear, power supply cabinet, control cabinet and various electronic control devices to monitor circuit current, voltage, power, power factor and frequency. The performance of the product meets the standard of GB7676-1998. The main technical parameters: the accuracy is: 1.5 level use conditions: -20 ~ + 50 C, relative humidity less than 85% pressure resistance: self frequency variation of + 15%, the indication error does not exceed the basic error mechanical performance: can bear acceleration of 30 meters per second 2, the impact frequency 80-120 times per minute, two hours to transport the working position of earthquake: The structural features of vertical direction are: plastic, bakelite shell, glass window, magnetic structure in magnetoelectric system. The company specializes in the production of pointer type current voltmeter, power meter, power factor meter, frequency meter and other products.
Scope of application
This series of products are two kinds of magnetoelectric system and electromagnetic system. It is suitable for the display panel and large switch board installed in the control system and distribution system, such as AC and DC current, voltage, power factor, power, synchronization value, frequency, unfolded voltage and overload electric current. The variation of the self frequency fixed value is + 15%, which causes the error of the indicator value not to exceed the basic error; the mechanical performance can be accelerated to 30 meters per second, the impact frequency is 80-120 times per minute, and the operation position is in two hours.
