SCT-1 is a stand-alone scale on a circuit board. It is intended
to be embed in bigger and more complex devices and instruments.
Mostly is used when dosing processes take place and weight
measurement is needed. It is build of ADC, memory, serial
interface and a small microcontroller. Power supply is 8-30V
DC. Scale calibration, and the following weight measurement
can be done only via serial interface RS-232/RS-485, using
special software, developed by GINEERS. Data protocols are
free downloadable at our web site.
user manual
| number of divisions |
500 - 30 000, step 500 |
| division value |
1,2,5*10ˆк g., К = -1 ÷ 6 |
| decimal point position |
1 |
| initial zero settling
|
±10% |
| function “ZERO” range |
±2% |
| zero tracking speed |
0,5е/1s |
| function “TARE” range |
50% |
| maximal display value |
Мах + 8е |
| weight measurement, using
tensometric load cells |
| input resistance (signal) |
> 1 MOhm |
| output resistance of sensor |
82 Ohm ÷ 2 kOhm |
| sensor connection type |
4/6-wire |
| sensitivity |
2.0uV |
| maximal range of measuring signal |
20mV |
| maximal cable lengths, when 4-wire connection
is used |
5m; cable type LIYCY 4x0.5mm2 |
| serial interface |
RS-232 standard; RS-485 option |
| measurement cycle |
0.1s ÷ 3 s |
| measurement error |
0,5е; for class III - according to EN 45501:2001 |
| power consumption |
< 0.4 W |
| work temperature |
from -10° C to +40° C |
| storage temperature |
from -50° C to +90° C |
| dimensions (H/W/D) |
77/55/15 mm |
| mounting |
4 holes 3 mm |
| power supply |
8 ÷ 30V DC |
| own weight |
35 g |
All external connections - sensor, power supply, serial
interface, are connected on terminal blocks at the
circuit board. For more information please refer to User manual.
Calibration and set-up are made with random weight, still
the user must know exactly how much it is. Initial calibration
is made at two points - zero condition and some known weight. This is carried out
by commands via serial interface. Functions "Zeroing" and
"TARE" are also working with serial interface commands.
We have developed special software for PC, intended for
use with SCT-1. Transmission protocols are free for use, if somebody wants to
use own software.
Changes in parameters and functions of SCT-1 are acceptable, so special tasks to be carried out if needed.
