AMC-1聪明AC multimeter(液晶显示器的ac multimeter)

AMC-1 Multifunction smart AC meterFunction and Technical Specifications(1)Basic precision and laboratory precision0.5level(2)Measurement parametersInstantaneous current, Instantaneous voltage, Effective current value, Effective voltage value, Active power, Reactive power, Power factor, supply frequency(3)Range50V 100V 250V 500V, 200mA 1A 2A 10A(4)Display4 lines LCD display(5)Frequency range10Hz 10KHz(6)Instrument appearancelength: 24cm width: 20cm height: 12cm(7)Auto-locking function(8)Manual reset function(9)Over range measurement protection, audible-visual alarm(10)Extra overload ability(11)Encryption software(12)With 485 interface2. Precautions for use of meter(1)Meter power220V±5%, 50HZ(2)Work environmentTemperature: -5 40°CRH: ≤85%No corrosive gas around(3)The meter must be preheated for 15sec after being connected to power supply3. Main characteristics (1). Multifunctional A/D dual-display meter combining a 4 1/2 bit D meter and a pointer A meter of 0.5 grade calibration accuracy (2). Wide-and multi-range measurement options (3). Extra-strong overload capacity to protect the meter in case of any incorrect wiring or operation during experiment and measurement, without affecting power connection to other parts (4). Automatic sound-light alarm when overloaded; automatic retrieval of measurement after overload is eliminated (5). Automatic record of overload times to facilitate examination and check-ups during teaching (6). The AC wattmeter has voltage display, current display, single and combined overload display to facilitate troubleshooting (7). Wide frequency response (50KZ-20KHZ) for the AC meter (8). The sub-ideal meter does not change the circuit state when connected to the circuit, and can greatly increase the experimental test accuracy. (9). Reading latch functions (10). With independent protection system and independent stabilized power supply, independently workable away from experiment bench (11). Variable ranges for continuous circuit measurement. No need to disconnect and reconnect power supply (12). With data communication interfaces