1:operating power :AC 85—264V or isolation DC 24V
2:current: 50mA(under the condition of connection without keyboard display and sound of buzzer) 3:signal output :one channel standard isolation RS485 output

One channel isolation 4-20mA or 0-20mA active output.
One channel OCT output(programmed between the pulse width(6-1000ms),default before leaving

factory (200ms))
One channel isolation relay output,with positive,negative,net accumulation pulses and different

alarm signals.
4:signal input: two channel three wire system PT100 platinum resistor input loop,to make heat meter has the

function of displaying heat quantity.
Three channel 4-20mA input optional,accuracy:0.1%,has the ability to input the signals of pressure,

liquid level, temperature and so on. 5::display:2*20 backlit LCD(Chinese and English optional)

6:operating:4*4 tactile keypad or magnetic 4 keypads operating(F4 mainframe)
7:other functions:automatic memory the positive,negative,net totaliser flow rate and heat quantity of the last 512

days,128 months,10years
Automatic memory the time of power on/off and flow rate of the last 30 times, realize to replenish by hand or automatically,read the datas through Modbus communication protocol.

8:protection level:mainframe:IP65,IP68(F4 mainframe),transducer:IP:68