Brecknell SBI-505 User manual
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SBI-505 Indicator
User Instructions
AWT35-500827
Rev. A1
2
1.1 Contents
Introduction on page 3
Installation on page 5
Basic Operation on page 7
If you choose clr n, the indicator exits the accumulation mode without clearing
the total weight. If you choose clr y, the total weight is cleared and the indicator
exits accumulation mode. on page 10
Calibration and Parameter Setting on page 11
Output Format on page 19
Troubleshooting and Maintenance on page 22
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1.2 Introduction
For safe operation please read and follow all safety information and
instructions.
This indicator is designed for basic weighing function. This includes:
lZero
lTare
lGross weight
lNet weight
lAccumulation
lPrinting
lAnimal weighing
Both kg and lb units of measure are available.
The default print format contains the following information:
lS.N. (serial number)
lGross weight
lNet weight
lTare weight
lDate
lTime
1.2.1 Options:
lPrinter
lRS232 serial interface or second display (remote)
WARNING: Settings, calibration, inspection and
maintenance should only be done by trained personnel.
WARNING: This indicator is a static sensitive device.
Remove power before making any electrical
connections. Do not touch any internal components.
Please take all anti-static precautions.
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1.2.2 Specifications:
Accuracy class: 6000 e
Resolution display: 30, 000
ADC: 2,000,000
Zero stability error: TK 0< 0.1μV//K
Span stability error: TK spn< ± 6 ppm//K
Sensitivity (internal): 0. 3V /d input voltage -30 ~ 30μmV DC
Input voltage: 9-13.8 VDC: 0.3 amps (center terminal positive)
Excitation circuit: 5 VDC, 4 wire connection
maximum of 6 - 350Ω load cells
AC power adapter: AC100/240V: 50-60Hz, 1.6 amp
center positive 9 [email protected] amps
Maximum power source: 12VDC
Operation temperature: - 10 °C ~ + 40 °C
Operation humidity: ≤90%RH
Storage temperature: - 40 °C ~ + 70 °C
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1.3 Installation
1.3.1 Power Supply Connection
The indicator is powered by an A/C adapter that plugs directly into the DC pin
at the bottom of the indicator. The indicator accepts 9 - 12 VDC center positive
adapter.
1.3.2 Connection of Loadcell and Indicator
The indicator can be connected up to 6 - 350Ω load cells. 4 wire or 6 wire
loadcells are acceptable.
Figure 1.1 Quick Disconnect
If using interface cable p/n AWT05-505848 (optional):
red = + exc., green = +sig, white = -sig, black = -exc.
Figure 1.2 PC Board Connection
51
42
3
HD
+Exc
+Sen
+Sig
-Sig
-Exc
-Sen
+SIG GND+EXC -EXC-SIG
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1.3.3 Communication interface
Below is the RS232 DB9 pin:
Pin assignments are shown below:
DB9 joint Definition Function
2 TXD Sending data
3 RXD Receiving data
5 GND Ground interface
1
9
99
5
7
1.4 Basic Operation
1.4.1 Power
Press and hold the ON/OFF key, shown below, for two seconds to power on or
off the indicator. After a self-test, normal weighing mode will be accessed.
1.4.2 Zero Operation
Initial Zero Setting During power up, if the weight on the scale is
within the initial zero tolerance, the indicator will
show zero automatically. The center of zero and
stable annunciators will be lit.
Pushbutton Zero When the scale is stable and not showing a
negative weight, you can zero the weight, within
tolerance, by pressing the Zero key, shown
below.
1.4.3 Tare Operation
When a gross weight is tared, the indicator will show the net weight. The Net
and Tare annunciators will light.
In tare mode, press the Tare key to clear the tare weight and the indicator will
show the gross weight.
1.4.4 Print
If the weight is stable, press the Print key to print the weight to a connected
printer.
ON
OFF
Zero
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1.5 Counting Function
Follow these steps to count items of the same weight.
1.5.1 Getting a Piece Weight
1. While in the weighing mode, press the Zero key to clear weight from the
scale.
2. Load pre-counted sample pieces of (5, 10, 20, 50, 100, 200, or 500) on
the scale and press the Count key.
PCS 0 is displayed.
3. Using the Zero key, select from the quantity choices (5, 10, 20, 50,
100, 200, 500).
4. Press the Print key to select the displayed choice.
The quantity of items is shown.
5. Remove the sample pieces and zero the scale if necessary.
6. Load the items to be counted on the scale.
The quantity of items is shown.
7. Press the Count key to return to weighing mode.
If you want to weigh items with a different piece weight you must turn the unit
off and on again and then repeat steps 1 through 7.
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1.6 Accumulation Operation
1. With 0 on the display, add the weight to the scale. Press the Total key
to enter the accumulation mode.
The Total annunciator turns on and the display shows n 001,
and then the display goes back to the loaded weight.
2. Unload the weight.
The display shows 0.
3. Load the second weight and press the Total key.
n 002 is displayed then the display goes back to the loaded
weight.
4. Repeat the previous steps for a maximum 999 times.
Viewing the Accumulation
1. To view the values during accumulation, press and hold Total and ON/
OFF keys.
nnn is displayed and then the total accumulated weight is
displayed. nnn is the number of accumulations included in the
total weight.
2. If the total weight is beyond the display capability, it will show the first
4 digits then the last 4 digits. For example, the first four digits are 0012
and the last 4 digits are 34.56, the actual weight is 1234.56.
Clearing the Accumulated Weight
Follow these steps to exit the accumulation function:
1. While the display shows the last 4 digits of the accumulated weight,
press and hold the Total key.
clr n is displayed. This prompt means Clear the accumulated
weight? - No.
2. Press Zero or Tare to toggle between clr n and clr y which means
Clear accumulated weight? - Yes.
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3. When the desired choice is displayed, press the Print key to accept
that choice.
If you choose clr n, the indicator exits the accumulation mode
without clearing the total weight. If you choose clr y, the total
weight is cleared and the indicator exits accumulation mode.
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