1. Name: 4 channels load cell anlog amplifier for data accqusition (BRS-AM-109)
2. Functions
4 channels amplifier with aluminum alloy shell, could connect four load cells and send out analog output, the internal use of imported high-performance devices. The sensor output signal precision amplification, internal regulator, constant current for the bridge, voltage and current conversion, impedance adaptation, linear compensation, temperature compensation. The amount of mechanical conversion into the standard current, voltage signal output, can switch 0-10mA 0-20mA 4-20mA 0 ~ ± 5v 0 ~ ± 10v. It can be connected directly with the automatic control device PLC MCU host computer terminal interface or computer networking. With the standard signal outside the zero, external gain function, input overvoltage protection, output short circuit protection.
3. Data sheet
1, in accordance with the wiring requirements of the good line
(4, 4 of the sensor are connected to EXC +, EXC-, SIG +, SIG-, where EXC is connected to the sensor power supply line, SIG is connected to the sensor signal line; V, I, - is the amplifier output after amplification, V, Output, I, - represents current output)
2, to the transmitter connected to the size of the DC power supply
3, connected to the sensor, in the case of no load installed by zero adjustment potentiometer to adjust to the corresponding zero output value (for example: 0 ~ 10v output that is adjusted to 0.000v)
4, adjust the zero after the sensor load (preferably the maximum range), and then adjust the gain potentiometer to the corresponding value (for example: 0 ~ 10v input that is adjusted to 10.000v) can also be adjusted to any value.
5, the parameter adjustment is completed (it is best to repeat the calibration 2-3 times) and confirm after disconnecting the power supply.
6, with wax or nail polish and other coagulants sealed adjust the potentiometer screw to prevent jitter caused by error.
4. KEY FEATURES
A, the input range is wide, 0.4 ~ 6mV / V can be connected with most of the strain bridge sensor
B, the load capacity can be connected with four 350Ω sensor
C, the use of imported electronic components, high response frequency, long-term stability
Integrated accuracy of ± 0.05% FS
D, input power reverse polarity protection and output short circuit protection
E, power supply 16 ~ 30VDC (recommended 24VDC) or 12 ~ 24VAC
F, suitable for pressure tensile pressure torque tension and other strain bridge sensors
The analog sensor signal is amplified, filtered, converted by the analog-to-digital converter to digital. Digital measurement signal and then processed by the microprocessor, through the RS232 serial port transmission. The parameters are stored in the CPU, power loss is not lost.
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