Our weigh scale indicators are based on microcontrollers and
are fully programmable to different kind of scales. All set-ups
and parameters are memorized in EEPROM memory. For standard
instruments the user do not have access to metrological parameters,
otherwise requirements of EN 45501:2001 will not be suited.
We have basically two types of indicators - universal kind with
many functions, and a simpler one for basic scale functions.
It is possible to connect our devices to PC using RS-232C/RS-485
serial interface. Data transmission protocols are freely downloadable
from our web site, is someone wants to write his own software.
Of course we also can offer various kind of software for scales,
developed by us.
Scale
catalogue
Universal weight measuring unit, intended for building
scales
Details
Simple indicator for building a scale
Details
G1601
(obsolete)
Universal weight measuring unit, intended for building
scales
Details
Simple indicator for building a scale
Details
Our weight measuring instruments are based on microcontrollers
and are fully programmable. The setup parameters are written
in a non-volatile memory, which has about 1 000 000 re-write
cycles. For standard scales the user can not alter the
metrological parameters, because this will be a violation
of scale's standard - EN 45501:2001. It is possible to
connect the scale to a personal computer, using RS-232C
or RS-485 protocols and standards. The protocols for communication
are free for download. The client may also use our specialized
software.
The display of G1601 consists of one 5-digit super bright
red display for indicating weight, with digit height of
25.4mm, and two 6-digit super bright red displays for
indication of single and total price (or additional information)
with digit height of 14mm. Display of G1602 is organized
the same way, but weight digits are with height of 20mm,
and additional displays - 10mm.
The display of G5100 and G5102 is a 5-digit weight display,
super bright red with digit height of 25.4mm. All displays
are covered with dark purple
filter. That way we achieve very high contrast and
good readability, no matter of surround light. The extra
height of weight display assures visibility of the result
from distance of minimum 6m.
The weight measuring principle is based on measuring
resistance. The load cell basically is a Wheatstone bridge
with four tensometers. When force is applied (weight),
the deformation causes change in the resistance of these
tensometers. Because a supply voltage is applied to the
bridge, this occurs as a voltage change in the output
of the bridge. The problem here is in the very small voltages,
that should be measured - between 1mV and 10mV. G1602,
G1601 and G5102 are based on a modern sigma-delta analog-to-digital
converter from Analog Devices, but G5100 uses more traditional
way to measure voltage - dual slope architecture. Both
methods have their advantages and disadvantages, but they
cover the basic requirements of the scale standard EN
45501:2001 (OIML R76-1 and R76-2 recommendations). Time
for a stable measure in standard instruments is 1.5s for
full equilibrium. It is possible to achieve faster measurement
(about 150ms for good measurement), which takes place
in industrial applications and can be ordered.
Instruments are powered by 220VAC (+10/-15%), or 12VDC
- 35VDC when special order is made.
Dimensions of G1602 and G5102 are (H/W/D) 175/160/65mm.
Mounting on vertical surface is made using 4 bolts at
the back of the box.
Dimension of G1601 are (H/W/D) 278/205/60mm, which is
necessary because of the triple display and 16-button
keyboard. The keyboard is intentionally made with bigger
buttons, for ease of use. The mounting is made on any
given vertical or horizontal surface by the delivered
from GINEERS stand in the unit complectation.
Dimensions of G5100 are (H/W/D) 170/160/60mm, according
to the single display and 4-button keyboard.
A custom scale may be accomplished for industrial purposes
according to the way the scale is made. By means of service
set-up menus can be choose:
- number of metrological divisions
- division value, according to BDS EN 45501:2001
- decimal point position
- button “ZERO” range, in percents F.S.
- button “TARE” range, in percents F.S.
- initial zero “catch-up”, in percent
F.S.
- zero tracking speed (for 1s)
- maximal displayed value before overload
- tracking speed of hanging of load cell, if needed
for aluminum load cells
- work range (in mV) of the embedded analog-to-digital
converter, according to capacity of the cell
- Counting function - On/Off
- Percent function - On/Off
- “Below minimum” function - On/Off
- RS-232 serial interface - On/Off, setup the speed
and parameters for transmission/reception
- enable/disable working with predefined articles
- enable/disable working with block condition
- enable/disable manual define of article's price
- calibration with custom weight, entered during calibration
- precise tuning for linearity of measurement
- approximation, carried on 5 points