The XL-2000AL controller has the following main functions:
The panel keyboard is set for parameter setting and range calibration.
It has the function of display weight zero.
¨ instrument faults, the operation error
4~20mA analog output can set the corresponding weight value of 4mA and 20mA current output.
The control output of low, medium and high 3-channel fixed value can be set to arbitrary control value and buffer value.
2. Main technical parameters.
2.1 A/D sampling rate: 7.5 times/second to 240 cycles per second.
2.2 internal resolution: 24 bits.
2.3 nonlinearity: less than or equal to 0.005%F.S.
Zero temperature drift 2.4:0.2 u V / ℃ or less
2.5 range temperature coefficient: no more than 10ppm/ m2.
2.6 full range net input signal range: 2~20mV.
2.7 initial signal range: -1~+9mV.
2.8 analog input signal sensitivity: 0.5uV /d (minimum)
1.5uV/d (recommended)
2.9 range: 100%FS.
2.11 display: 6 red LED digital tubes (height 14mm)
Working environment temperature: 2.14-5 ℃ ~ 45 ℃
2.15 relative humidity: ≯ 90% (no condensation)
2.16 power supply: +18 ~ +24 VDC, 0.5A.
2.17 sensor for bridge voltage: DC 5 v, can meet not less than 350 Ω four impedance sensors