D39 electronic weighing indicator a kind of weighing indicator specializing in digital truck  scale application. It adopt technical platform of multi—task operation system, TFT display  and all touch operation. It has digital advantage to a considerable degree and shows  directly scale adjustment operation by graphical form and make it clear and high efficient;  it reminds wrong operation and error by dialog,  and the descriptive instruction in the dialog  make the error solution easy and precise; It has the management interface for the clear  weighing data records and suitable for static digital truck scale systems. 

Main features: 
1. 7inch800*480 TFT color display 
2. High precise touch operation and quick reaction speed, no need for external keyboard support 
3. Support Ethernet interfaces, RS232s, RS232, RS485,  Parallel printing interface and  scoreboard interface
4. Various interface for digital scale adjustment and make full use of the digital function  for truck scale. 
5. Abnormal condition reminding with clear information and instruction for error solution 
6. Support Chinese and English touch scoreboard input and make words editing easier 
7. Various scale analytic interface and make error solution easier 
8. Supporting column load cells with angle test ( Optional ) 
9. Multi level management for user, maintenance people and manufacturer 
10. Support routine C.E.K communication protocols. 
11 . Isolated load cell with all external connection device in electric part and the load cell  has no influence the external electric leakage, the load cell interface of indicator has  strong anti—surge and static protection 
12. Type setting function for printing weighing note 


Main Technical Parameters

Digital load cell interface: RS485, total cable 75 m if connecting 12 pcs load cells 
Transmission rate: 9600, 19200 bps; 
Power supply : DC 12V/750mA 
Load cells numbers: 1~16pcs 
Communication protocols: Keli's C protocols, C customizeds, E customized and K protocol 
Display mode: 7inch800*480 TFT color display
Keyboard : Resistive touch screen 
Screen interface: 20mA current loop constant current serial output, baud rate 600, transmission distance ≤ 100 m
Serial communication interface: standard: RS232 and Rs485, baud rate 600—19200 optional 
Printer interface: standard parallel printer interface, suitable with EPSON LQ-300K+ Il EPSON LQ-300Ks EPSON LQ- 680K EPSON LQ-730K EPSON LQ-1600K ( + ), KX-P1131s KX-P1121s POS581V ,DS-300 or AB-300K 
Ethernet interface : 10/1 OOMbps 
Data storage: 1000 sets of tare,4500 sets of new weighing Records, 300 sets of new incomplete weighing
Power supply : AC 110-220V, 50-60Hz
Dimension: 318*218*100mm
Weight: Approx 2.7kg