Bongshin BS-105 User manual
BS-105
Digital Indicator
The Better Way for Weighing &
Measurements
1
CONTENTS
Introductions . . . . . . . . . . 2
The Features of BS-105 . . 3
Technical Specification . . 4
Dimensions . . . . . . . . . . . . . 6
Front Panel . . . . . . . . . . . . 7
Rear Panel . . . . . . . . . . . . . . 9
Parameter . . . . . . . . . . . 14
ZERO Calibration . . . . . . . 19
Actual Load Calibration . . . 20
Equivalent Calibration . . . 22
Comparator Data . . . . . . . 24
Hold Function . . . . . . . . . 32
Key Lock . . . . . . . . . . . 34
Option . . . . . . . . . . . 35
Error Message
and Trouble Shooting . . . 43
2
Introduction
1. Introduction
Thank you for purchasing BS-105 High precision digital indicator.
Check for any breakdown during transit and discrepancy of the
specification. Always keep this manual at hand.
The BS-105 Series are configured as follows :
Check that there is no discrepancy between the model and its
specifications you have chosen when ordering and the model and its
specifications under your hand.
In order to obtain the highest performance of your BS-105, thoroughly
read this manual before use.
2. Precautions
■ Place the indicator on a flat and stable surface.
■ Applying voltage and current exceeding the maximum permissible
value results in the breakdown of the meter.
■ Do not severely press because the light pressing of keys can incite
the operation.
■ Do not subject the scale to sudden temperature changes.
Operating temperature : -10℃~+50℃
■ Keep the scale away from strong EMI noises may cause incorrect
weight readings.
■ Keep the main body from rain and keep in dry area.
■ Do not use inflammable materials in cleaning.
■ The contents of this manual are subject to change without notice
for further improvement.
3
The Features of BS-105
1. Features
■ 24 bit Sigma-Delta A/D converter for high accuracy.
■ Appropriate for weight and measurement system.
■ Simple full digital calibration.
■ Simulative (mV/V memory) or live load calibration.
■ Watchdog circuitry (system restoration)
■ Weight Back-up (power on actual weight)
2. Main Function
■ Various specification of weight conversion speed.
(Digital Filter Function)
■ 3 Set point relay output.
■ Hold, peak hold and auto zero.
■ Optional serial output or analog output.
■ User can set the max. weight which users want to and division
at one’s disposal.
4
Technical Specification
1. Analog Input & A/D Conversion
Analog signal input range 0mV ~ ±30mV
Non-linearity 0.01% F.S. max.
Max. Display resolution 99,999d
Min. Input sensitivity 0.3μV/Digit (min.)
Temperature drift Zero : ±0.1μV/℃ RTI max.
Span : 10ppm/℃ max.
Load cell excitation
Voltage
DC 5V ±5%, 60㎃
(350 ohm x 4 load cells)
Input Noise ±0.3μVp.p
Input Impedance 10㏁
A/D converter 24bit Sigma-Delta
A/D internal resolution Approx. 1,000,000
A/D sampling speed 50 times/sec
Display range -19,999 ~ 99,999
2. Digital Part
Display LED, 7 Segment 8.0mm high
5 Digits
Display speed 50 times/sec ~ 1 times/sec
Polarity indication (-) “-”Minus sign
Annunciators HOLD, ZERO, STABLE,
Relay point(LO, OK, HI)
Display increments
1, 2, 5, 10, 20, 50, 100, 200 selectable
Decimal Point Selectable to any points
5
3. Technical
Operating voltage DC 24V ( DC 20 ~ 27V)
Power consumption Approx. 10VA
Operating temperature
-10℃ ~ 50℃
Overall dimensions 48(W) x 48(H) x 138.5(D)
Weight Approx. 170 g
4. Option
Standard Relay 3CH Output
Option – 1 RS-232C (Serial output)
Option – 2 RS-422 (Serial output)
Option – 3 RS-485 (Serial output)
Option – 4 DC 0 ~ 10V (Analog output)
Option – 5 DC 4 ~ 20mA (Analog output)
Example) Option- 4 : Relay 3CH + DC 0 ~ 10V
6
Dimensions
M
(unit : mm)
Panel cut-out
FRONT
REAR
To mount the BS-105 to the panel, remove its fittings and insert it through
the hole in the front of the panel. From the back of the panel, fix the
product to the panel with the fittings.
7
Front Panel
M
Key Switch
Weight Value Display
Status Lamp
1. Display Lamp ( )
LO (L1) lamp : It will lamp when 1step control works.
Indicates the result of judgment and turns on
if the measured value < LO judgment value.
OK (L2) lamp : It will lamp when 2step control works.
Indicates the result of judgment and turns on
if LO judgment value ≦ the measured value ≦
HI judgment value.
HI (L3) lamp : It will lamp when 3step control works.
Indicates the result of judgment and turns on
if the measured value > HI judgment value.
HD (Hold) lamp : Lamp is on when moving object is weighed.
Turns on if “peak hold/ instant hold” is on.
ZR (Zero) lamp : ON when the current weight is 0 kg.
Turns on if “digital zero” is on.
ST (Stable) lamp : ON when the weight is stable.
8
M1
2
3
4
M1
M1
4
4
2. Keyboard
1) Pressing the increments and mode keys together changes
to the parameter setting mode.
2) Returns to the measurement mode.(ESC)
3) Selects the item to be set.
1) Holding down the increment key for about two second
moves to the peak hold & instant mode.
2) Changes the value or content of a selected digit.
(Increments the value)
1) Holding down the increment key for about one second
moves to the peak hold & instant clear mode.
2) Changes the digit to be set.
1) Store current condition and exit.
+ = Parameter setting mode
+ = Relay setting mode
+ = Digital zero function
+ = Key LOCK or Key LOCK clear mode
2
3
2
3
9
Rear Panel
■ POWER (DC IN) :
Use a stable power supply DC20~27V
Connect power supply to terminals No.6 and No.7.
Pin No. 명칭 내용
6 POWER Power terminal without polarity for both DC24V
7 POWER Power terminal without polarity for both DC0V
※ You can also connect regardless of the polarity.
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