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| ST550 weighing display controller |
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| ST550 weighing display controller |
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Brief introduction:
ST550 is my company special design and manufacture of weighing display controller ( the technical manuals referred to as ST550 instrument ) for the weighing of distributed control system , concrete mixing equipment. It can also meet the general requirement of weighing need.
1. Characteristics
6 led two tube display;
The 4 soft touch keys;
The cabinet structure, easy to install;
SIGMA-DELTA high precision A / D converter ( in resolution 1 millions );
A / D conversion rate of 200 times / sec
Continuous output weight data update rate of 25 times / sec;
Can drive 8 350 ohm resistor strain type load cell;
Optical isolation RS-232 / RS-422 serial interface;
Automatic zero tracking function;
Dynamic detection;
2 .technical specifications:
1 simulation part.
The load cell excitation: 5VDC, maximum for the current 120mA
A / D resolution: 1000000 ( 1 ppm )
A / D conversion rate: 200 times / sec
Load cell signal input range: 0 ~ 13mV
The sensitivity of the load cell signal input range: 2 ~ 15mV
Temperature coefficient of zero: 0.15 u V / C.
Temperature coefficient of sensitivity: 12PPM / C.
Display resolution : 1000 ~ 30000
Division value : 0.001 ~ 50kg
The 2 display and keyboard
Display: 6 yards led two tube display ( red, the word high 9.9mm ).
Keyboard: the 4 soft touch keys. Used for reset, peeled, clear skin and print.
3. serial communication interface
Interface: light across the RS-232 and RS-422 serial communication interface.
Baud rate: 300, 600, 1200, 2400, 4800, 9600 or 19200.
4. environmental conditions
Power: 24 Vdc ( 18 - 32 Vdc ).
Maximum power: 8 watts.
The use of the environment: temperature - 10 degrees to + 40 degrees c.;
Humidity is 10 ~ 90% no condensation.
Storage conditions: temperature - 40 degrees to + 60 degrees c.;
Humidity is 10 ~ 95% no condensation.
5. dimension
Size: 110 mm ( W) X 62 mm ( high ) X 120 mm ( deep ).
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