Explosion-proof instrument

The basic function
The change table does not need to be re-calibrated, only the parameters of the original instrument can be used.
It is completely isolated from 0-5v / 0-10v / 4-20ma analog output, and can be calibrated in multi-mode.
The high speed output of RS485 and RS232 serial port; Flexible communication mode (continuous sending and command response)
External large screen current loop output interface.
The isolation switch is 3 out of 3 control.
Technical parameters
Accuracy: level 3, n=3000.
Input signal range: -15mv ~ +15Mv.
Nonlinearity: less than 0.01%F.S.
Sensor connection number: 1 ~ 4 only 350 Ω sensor
For bridge power supply: DC: 5V; 350 ma
Sensor connection: 6 wire system, long - term automatic compensation.
Display: single row of 7 LED, 0.5 inch high,11 status indicator light.
Value: 1/2/5/10/20/50/100.
Clock: can display real-time time, date.
Keyboard: five mechanical keys are used.
Large screen display interface: serial output mode, 20Ma constant current source signal.
Communication interface: serial RS232/RS422/RS485, optional; Baud rate 1200 ~ 9600 optional.
Printing interface: with serial port, can connect serial printer.
Output: contact capacity AC 220V/DC 30V; 0.5 A
External control input: switch contact (closed control is valid)
Power supply: AC 110 ~ 230V, 50/60hz 1A; Optional DC 24V power supply.
External dimensions: 315 x 300 * 190mm (length x width x height)