Strain Gauge Load Cell Amplifier Transmitter , isolated supply 4-20mA & 0-10Volt（247）


1.0~5V(10V)&4~20mA can output at the same time;0~5V&0~10V is adjustable by switch(view the pictures).


2. The built-in precision amplifier circuit, high precision, low temperature drift, long-term stability;
 
3. Current and voltage output offer at the same time, choose through the terminal blocks;
 
4. A wide range of power-supply modes
 
5. Input overvoltage and overcurrent protection, output short circuit protection;
 
6. Load capacity is strong, use with junction box, it can connect with more than one sensor;
 
7. Apply to weighing, pull pressure, torque, etc. Various kinds of strain bridge type sensor
 
8.The shell and cable connector waterproof design, tightness is good, applicable to various kinds of severe environment;
 
9.Load capacity:87Ω(can connect with 4pcs of 350Ω load cell sensor in parallel)
 

parameter

Input signal

Full bridge strain gauge/Load cell

Note

Bridge resistor

<2KΩ

 

Sensitivity

1.5~2.1mV/V

 

Excitation voltage

5V DC

 

Excitation current

<100mA#12V supply

<50mA#24V supply

 

 

Power supply

12~26V DC vs. 0~5V output & 4~20mA output

18~26V DC vs. 0~10V & 4~20mA output

 

Linear

0.3%

 

Temperature coefficient

50ppm#10~30 degree, 100ppm full work temperature range

 

Operating temperature

0~50 degree

 

Weight

98g

 

Dimension

83mm×58mm×33mm

 

 

Wiring

Terminal No.

1

2

3

4

5

6

7

8

9

10

Define

ToLoad cell

Power supply & Output

Shield

EXC-

SIG-

SIG+

EXC+

Vout

Iout

GND

12~26V DC

Shield

Zero point adjustment:
Voltage zeroing: Connect the sensor correctly according to the wiring definition, first place the sensor in an unloaded state, and adjust the voltage zeroing potentiometer (Vzero) to adjust the zero point. Measure the output terminal with a multimeter
VO voltage, make the reading as close as possible to the zero point reading.
Current zeroing: Connect the sensor correctly according to the wiring definition. First, place the sensor in a no-load state, adjust the current zero potentiometer (Izero), and connect IO and GND in series with the current range of a multimeter,
Measure the output current IO and try to bring it as close as possible to 0mA. If 4mA is required, adjust it to 4mA.
Full scale adjustment:
Voltage Full Scale: The sensor is loaded with a certain weight value (recommended: 80%~100% of full scale weight), and the output voltage value is calculated based on the proportional relationship between the loaded weight and the maximum range value, using the number ten thousand

Use a meter to monitor the output and rotate the voltage full scale potentiometer (Vspan) to adjust the full scale output. For example, for a 10Kg range 1mV/V sensor, with an excitation voltage of 10V, place a 9Kg weight,
Adjust the output voltage to+9V. Similarly, the tension full scale of the tension and compression sensor is also adjusted in the same way, and the output voltage corresponding to the tension is negative voltage.
Current Full Scale: The sensor is loaded with a certain weight value (recommended range: 80%~100% PS), and the output current value is calculated based on the proportional relationship between the loaded weight and the maximum weighing value, using a digital multimeter
Monitor the output and rotate the current full scale potentiometer (Islan) to adjust the full scale output as close to+20mA as possible. For example, a 10Kg range 1mV/V sensor, with an excitation voltage of 10V,
Place a 9kg weight and adjust the output voltage to+18mA. Similarly, the tension full scale of the tension and compression sensor is also adjusted in the same way, and the corresponding output current of the tension is negative current.