Function & Feature
1. QPW transducer converts ac current and voltage signals into a load independent
dc signal proportional to active power (watt). This signal is capable of driving a number of independent instruments.
2. The current and voltage signals are passed into the circuit via precision instrument transformers to provide galvanic isolation between the input circuits and the transducer circuitry. Each pair of current and voltage signals is mathematically multiplied together to produce a product signal proportional to true power and independent of wave shape and phase angle.
3. These watt transducers to be connected to a variety of measuring and control devices and systems, such as analogue meters, PLC, computers, data loggers, digital instruments and telemetry systems.
4. Snap on to DIN rail 35 x 7.5 mm complies with DIN-EN 50022 BS 5584
Nominal input 1 or 5 Amp C.T. connected
110V, 230V, 240V, 400V, 415V ac +/-20%
Power consumption <1 VA voltage
<0.2 VA current
Overload capacity Current: 2 times continuous, 30 times /1s .
Voltage: 2 times continuous.
Frequency range 50Hz, 60Hz
Standard nominal outputs 4~20mA, 0-5V, (others on request) 0-20mA, 5-10v
Maximum load <750 Ω (0-20mA, 4-20mA)
>2000 Ω (voltage output)
Ripple <1% peak to peak
Response time <250ms 0-90%
Class ±0.2 % / ±0.5 %complying with IEC 688
Accurate range 0 - 120% I
Frequency influence <0.02% per Hz
Load influence <0.25% of full span for specific load range
48v, 110v, 230/240v ac 20%, 1.5va
24v, 48v, 110v dc 20% 2w
Isolation Galvanic isolation between input, output circuits and auxiliary supply
Test voltage 2KV RMS 50Hz for 1 minute
impulse 4KV 1.2/50µsec waveform
Storage -40~70C, 20 ~ 93%RH ; Noncondensing
Contact Name: Jane
Company Name: Blue Jay Technology Co., Ltd
Street Address: Building 13, 2-8,
Jialing Third Village Pioneer Park,
Jiangbei District, Chongqing
Jiangbei, Chongqing 400000
Member name: BlueJayTechnology
Member Since: 10 June 2014
Total Leads: 24 BlueJayTechnology Import Export Business Leads
Business focus: Energy Meter, Ampere Meter, Digital Power Meter, Voltmeter High Voltage, Digital Electronic Timer, Thermometer, Digital Frequency Meter, Digital Counter
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Product Category: Electric power transducer