TPS OCS-TPS User manual

Electronic Crane Scale
User’s Guide
CRANE SCALE OCS-TPS

Table of contents
1. Overview………………………………………………………………………2
2. Features & Specifications………………………………………………………2
3. Keypad Operation…………………………. ………………………. …………3
4. General Scale Operations………………………………………………………4
5. Battery Charging…………………………………………………. ……………5
6. Precautions………………………………………………………………………5
7. Calibration Method……………………………………………………………. 5
8. Sub-menu Function Setup…………………………………………………….. 5
9. Displays …………………………………………. ………………………. ……6
10. Schematics………………………………………. ………………………. ……7

Overview
The electronic crane scale combines reliable, advanced electrical hardware with good software.
Using AT-89 series micro-processor and high speed, high precision A/D conversion technology,
this series of scale has a specially designed jittering compensation circuitry so they can reach
steady state quickly with strong anti-interference capability. This series of scales can be used for
weighing application in commercial trade, mines, storage and transportations.
Specifications
Product Execute Standard GB/T11883-2002
Accuracy Grade III
Time to Stable Reading <10 Seconds
Maximum Safe Load 150% Full Scale
Display Specifications 5-digit Super High Brightness 25 mm red LED display
Or 5-digit 20 mm FSTN LCD display with back lighting
Hanging Fixture 360-degree swirl safe hook & shackle
Operating Temperature -10℃~ +40℃
Operating Humidity 30% ~ 90% RH
Low Voltage Indicator Low voltage indicator turns on when the scale power supply voltage is
low.
Power Supply 6V/3.2AH lead-acid rechargeable Battery (self contained)
Adaptor Input:100-240V output:DV 6V/800mA
Auto Power Off 30 minutes after the scale inactive or at extreme low power supply
Scale casing Cast aluminum casing, corrosion safe, anti-static and light weight
Keypad Light touch keypad
The keypad includes those keys such as division selection, Zero, Hold.
(Note: The above keys can be used in sub-menu to set up Kg-lb conversion, Beeper On/Off,
Zeroing and indicator exchange, internal code displaying, etc.)
Max. Capacity
(kg)
Mini. Weight
(kg) Measured Division Selectable Division
500 5 0. 2 0. 1
1000 10 0.5 0.2
1500 10 0.5 0.2
2000 20 1.0 0.5

Keypad Function/Operation
HOLD
SW
1.［］: Press this key to set the current display to zero. Under weighing mode of
operation to turn on/off the display backlighting (only applicable to LCD series)
2. ［］: Press this key to change between Measured Division and Selectable Division.
3.[ ]: Press this key to keep the current display, the screen will flash. Press it again to quit
this operation.
General Scale Operations
1. Turn On the Scale
Press the mechanical switch located on the back of scale to “1” position to turn on the scale. The
scale’s maximum weighing capacity is first shown, and then the scale goes through a self-check
sequence. After 0.0 is displayed and stable light is lit, the scale is ready for weighing operation.
(Note: it is recommended to allow scale 3~5 minutes of warm-up time before starting weighing
operation).
2. Zeroing
When the scale is switched on and with no load on the hook, press the ZERO key to obtain
the zero reading. .
3. Weight Measurement
Once the load is suspended completely, the display shows the weight value of the load. When the
“Stable” indicator is lit, weight value can be recorded. In case there is tare such as cable, load the
tare and press to zero the display to “0”kg. The weight value after this will be the net
weight. This will not change until the tare change or the scale being turned off.
4. Turn Off the Scale
After weighing operation, the scale should be turned off. Press the mechanical switch on the back
of the scale to “0” position to shut off the power to the scale completely to prevent the leakage of
the battery.
5. Division Conversion
Under weighing mode and the unit is ‘kg’, press key to change between Measured Division
and Selectable Division
.
Battery Charging Method

The scale uses maintenance-free 6V/3.2AH Lead-Acid battery. When scale is with low power, it
will display the following signals:
a When the low power indicator light is lit. The scale needs to be charged now.
However, the scale can continue to be operated for about 3 hours without charging.
b. After the low power indicator is ON for several hours without charging or there is no more
power in the battery, the crane scale will be powered off automatically. It will take about 5
hours to fully charge the battery.
c. After battery charging, if there is no display, it indicates that either there is difficulty in
battery charging or a damaged battery. Please contact supplier for repair or replacement.
d For Nickel – H battery,With a fully charged battery, the scale can be operated for about 30
hours. To prolong the battery life, please recharge the battery promptly using for every 20
hours of usage.
Scale Care
1. For weighing operation, please don’t load the scale with weight load exceeding the maximum
capacity.
2. Perform routine inspection and maintenance to ensure operation safety for these basic items:
a) Check for loose bolts.
b) Check hook and shackle for deformation, wearing and tearing.
c) Check other scale component for signs of metal fatigue.
d) Check for missing hook latch.
For the above problem, please stop using the scale and send it back to authorized dealer for repair
or replacement of problem parts.
3. Do not touch the displaying screen directly.
4 .Do not use the scale in the rain or in a polluted environment.
5. Please remove the battery and store the scale in a dry environment if the scale is not going to be
used for some time.

Calibration Method
Please do not attempt to calibrate the scale without standard weight
Step Operation Display Remarks
1
Press & Hold [ ]
Key to power on
00000 Enter the calibration procedure，needed to enter
password
2
Press [ ]Key to
add
Press [ ]Key to
move the digit left
***** Enter password
3 Press[
] to
confirm
SPAn Scale should be with no load
2
Press[ ]Key SEt
00000 Confirm zero point, when stable, display “00000”
3
Press [ ]Key to
add
Press [ ]Key to
move the digit left
1500.00
Load the scale. The closer to full capacity the better.
For example, 1500kg
4
Press[ ] Key HOLd To store the result once the weighing becomes stable
5 ------ 1500.00 System goes back to weighing mode after several
seconds.
Setup Functions in Sub-Menu
Step Operation Display Remarks
1
Press[ ] key during the
scale self-check sequence 00000 Enter the sub-menu, needed to enter
password

“9,….0” to enter the sub-menu
2
Press [ ]Key to add
Press [ ]Key to move
the digit left
***** Enter password
3
Press[ ] to confirm Enter the alarm ON/Off setup
mode. Press [ ] or [ ] key
to toggle the digit. “0” is Off, “1” is
“ON”
4
Press[ ]
HOd 1
Hold valid/invalid setting
Press[ ]or[
]to
change
“0” is invali
d, 1 is
valid
5
Press [ ]
Stb 0
Zero setting
Press[ ]or[
] to
switch
“ 0 ” can zero
under any
condition
“1” can zero only
obtain
the steady reading
6
Press[ ]
CHt 1
Unit
s conversion between
kg and lb
Press[ ]or[
]to
switch
“0” is lb，“1”is kg
7
Press[ ]
A
pplicable to LCD
series
For LED series
, please
refer to the next step
Aut 0
Manual /AUTO backlight setup
Press[ ] or [
] to
switch
“0”is manual，“1”is auto
8
Press[ ] YES 0 Save or not Press[ ]or[
]to

switch
“0”is not to save，“1”
is to save
9 Press[ ]
System will be restarted automatically
Displays
LED Display
kg HOLD
LCD Display
AM PM
AUTO SW
kg: Weighing in kg.
HOLD: The current weight is kept.
AUTO : Manual or Auto backlighting. When this symbol is lit, indicating the backlighting will
be on during the weighing process.
: ‘Low Battery‘indication. When the lamp flashed, the battery needs to be charged.

‘Division Conversion’ indication. When this symbol is lit, indicating the display value is at
selectable division status.
Stable indicator. When this symbol is lit, the weighing process is stable and customer can
take record of the weight.
Schematics
kg
HOLD
CRANE SCALE
HOLD
SW

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