Qinhuangdao Beidaihe Lande Technology Co., Ltd
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BZ2668 Programmable Dynamic Strain Gauge
☆ Single unit divided into 8 and 16 channel combination modes, parallel input and output
Product details

☆ Single unit with combination of 8 and 16 channels, parallel input and output.

☆ Computer program control, complete functions such as gain shifting, automatic balancing, automatic compensation, debugging and calibration.

Program control only controls and manages channels, and does not participate in the sampling and transformation of analog signals, ensuring that the amplitude, frequency, and phase of analog signals are not distorted, providing a reliable analog signal conditioning front-end for large-scale measurements.

The isolated USB and RS485 interfaces only transmit information between the instrument and the computer, effectively blocking electromagnetic interference.

When using an offline computer, the panel buttons can be independently operated to complete all measurement functions.

☆ It has an input self-test function indicator, eliminating the need for manual inspection of cable connections and bridge assembly.

The debugging and calibration of the signal are completed by software, which permanently stores the memory parameters and never loses them in case of power failure.

The embedded computer chip monitors and precisely adjusts the changes in bridge voltage and the connection of long cables in real time.

There are no mechanical movable parts inside the instrument (such as switches, potentiometers, etc.), which will not affect the reliability and long-term stability of the instrument due to factors such as oxidation and vibration.

Multiple units can be connected through RS485 interface and controlled and managed by one computer to form a multi-channel parallel measurement system.

The instrument bus communication protocol is Modbus RTU standard protocol, which is easy to use and convert.

Number of instrument channels 8通道、16通道
Maximum strain input quantity ±4.5×104with
input impedance 107Ω/6pF
Input protection voltage ±40V
Gain grading 100200300400500600700800900100020003000400050006000700080009000The10000µV/with
Basic error 0.2%red±1with
Linearity error 0.02%FS
frequency range 0~50kHz(±0.5dB
noise 3withrms (Gain:10000µV/with, bandwidth:50kHz
zero drift ±1with/2Hour, maximum: ±2with
Sensitivity variation ±0.05%red/2Hour, maximum: ±0.1%red
temperature drift 0.02%red±0.1with/
Phase difference between channels 0.6°(0~20kHz
output ±4.5V/5mA
Balance method Optional: Single channel automatic balancing; Unified automatic balancing
Balance range ±5000with
balance accuracy ±0.5with
Bridge pressure 2VDC
Bridge pressure correction range 1.4~2.2V
Bridge pressure correction accuracy 0.05%
Bridge assembly method 1/4The bridge1/4Bridge (public compensation), half bridge, full bridge, external bridge box
Bridge arm resistance 50~10000Choose Ω.
Automatic compensation for long cables Single cable resistance/Bridge arm resistance ≤20%
Input self-test If the light is on, it indicates a correct connection; if the light is off, it indicates an input fault or disconnection
operation program-controlled
control interface isolatedUSBInterfaceRS485interface
Multiple online devices 8-512通道
output interface Q98通道)、DB2516通道)
power supply 220VAC/0.2A/50Hz
ambient temperature 10~50
ambient humidity 90%
Overall dimensions 8通道:440×210×44mm1U);16通道:440×270×44mm1U

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