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1. General Description
KM05 is a weighing transducer promoted by Keli Electric Manufacturing (Ningbo)
Co., Ltd. It applies for an industrial control fields (or other applications with analog
output). It combines weight display and analog signal together. Its signal
transaction of former part adopts high-precise A/D converter with 24 bits, and the
output of analog signal adopts D/A converter with 16 bits. Its shell is a small box
made from aluminum, easily to be inserted into its control cabinet.
1.1. Main Specification
z Protection function of over load and short circuit in excitation loop for load cell
z High precision, high resolution Σ-△ mode A/D converter, maximum A/D pulse
1,000,000
z Updating rate: 6.25 times/second, 12.5 times/second, 25 times/second, 50
times/second
z Number of its division: 1000 ~ 10000
z Division value range: 0.001 ~ 50
z Two-point (off) relay output. Mode of output can be set: weight selective mode
and value-fixed mode.
z Isolated digital communication interface, RS232 or RS485 can be selected.
z Analog output mode can be set : 4～20mA、0～20mA、0～5V or 0～10V
z 7 bits of LED digital tube display, height of word is 0.56 inch
z 20 segments of light pole display
1.2. Technical Specifications
a. Loading capacity
z Excitation voltage: 5.0 VDC, connect 8pcs of 350Ω analog load cells
z Signal range: 1.5 ~ 40mV
z Zero signal range: －40～38.5mV
z Analog current output: Max 500Ω
z Analog voltage output: Min 10 KΩ
z Touched – point capacity of relay: AC 7A／250V, DC 12A／120V
b. Performance
z Full scale temperature coefficient: 5PPM/℃
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