CAS PR-II Series User manual

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CAS ELECTRICS CO.,LTD
PR-II Series
Service Manual
(English)
2016. 05. 13

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CAS ELECTRICS CO.,LTD
Table of Contents
1. Introduction.........................................................................................................................3
1.1. Preface .......................................................................................................................3
1.2. Precaution...................................................................................................................3
2. Classification .......................................................................................................................4
2.1. Overall View ................................................................................................................4
2.2. Specifications ..............................................................................................................5
2.3. Display & Key ..............................................................................................................6
2.3.1. Display ...............................................................................................................6
2.3.2. Key Function .......................................................................................................7
2.4. Dimension...................................................................................................................8
2.4.1. Scale..................................................................................................................8
2.4.2. Loadcell..............................................................................................................9
2.5. Sealing Method ............................................................................................................9
3. Calibration......................................................................................................................... 10
3.1. Calibration Mode ........................................................................................................10
3.2. Span Calibration ........................................................................................................11
4. The Schematics and Diagram...............................................................................................16
4.1. System Block Diagram................................................................................................16
4.2. Circuit Diagram.......................................................................................................... 16
4.3. Interface................................................................................................................... 16
4.3.1. RS232C Interface (direct) ...................................................................................16
4.3.2. USB Interface....................................................................................................17
5. Firmware Update Method.....................................................................................................17
6. Exploded Views ..................................................................................................................17
7. Parts List........................................................................................................................... 19
7.1. Electronic Parts.......................................................................................................... 19
7.2. Mechanical Parts ........................................................ 오류! 책갈피가 정의되어 있지 않습니다.
7.2.1. BODY ASS'Y ......................................................................................................22
7.2.2. UPPER CASE ASS'Y ............................................................................................ 23
7.2.3. TRAY ASS'Y....................................................................................................... 23
7.2.4. PLATFORM ASS'Y ...............................................................................................24
7.2.5. PLATFORM ASS'Y ...............................................................................................24
7.2.6. IMAGE ASS'Y.....................................................................................................25
7.2.7. C/T ASS'Y .........................................................................................................26
7.3. Loadcell Parts ............................................................................................................26
Revision................................................................................................................................ 27

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CAS ELECTRICS CO.,LTD
1. Introduction
1.1. Preface
Thank you for purchasing of our CAS scale.
This scale has been designed with CAS reliability, under rigid quality control
and with outstanding performance.
WE hope that your departments enjoy with high quality of CAS product.
This manual will help you with proper operations and care of the PR-II.
Please keep it handy for the future references.
1.2. Precaution
Make sure that you plug your scale into the proper power outlet.
Place the scale on a flat and stable surface.
Plug into a power outlet 30 minutes before operations.
Keep the scale away from strong EMI noises may cause incorrect weight readings.
This scale must be installed in a dry and liquid free environment.
Do not subject the scale to sudden temperature changes.
Do not subject the platter to sudden shocks.
If the scale is not properly level, please adjust the 4 legs at the bottom of the scale (turn
legs clockwise or counterclockwise) so as to center the bubble of the leveling gauge
inside the indicated circle.

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2. Classification
2.1. Overall View
■Rcolumn instaltion

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2.2. Specifications
MODEL
PR-ΙΙ
Capacity
Dual
Interval
Single
Dual
Interval
Single
Dual
Interval
Single
Max
3/6kg
Max
6kg
Max
6/15kg
Max
15kg
Max
15/30kg
Max
30kg
e
e=1/2g
e=2g
e=1g
e=0.5g
e=0.2g
e=2/5g
e=5g
e=2g
e=1g
e=0.5g
e=0.5/1g
e=10g
e=5g
e=2g
e=1g
External
Resolution
1/3000
1/3000~
1/30000
1/3000
1/3000~
1/30000
1/3000
1/3000~
1/30000
MAX Tare
-MAX
Display
6/6/6(Weight / Unit price/ Total price)
Symbols
ZERO, TARE, kg/lb,100g/1oz, ADD, SUM, Low Battery, AC POWER
Keys
ZERO, TARE, M1~M7 KEY, FUCTION, ADD, SUM
Functions
Direct PLU 7, Unit Conversion, Power Save Mode
Print out Function, Back-light ON/OFF Control Function
Dimensions
P TYPE : 341 (W) x 435 (D) x 474 (H)[mm] / 134 (W) x 171 (D) x
186 (H)[inch]
B TYPE : 341 (W) x 383 (D) x 102 (H)[mm] / 134 (W) x 151 (D) x 40
(H)[inch]
Platter size
330 (W) x 235 (D)[mm] / 129.92 (W) x 92.52 (D)[inch]
Weight
2.8 kg
Power
1.5 V x 3 units (D size Battery), Pb 4V/4Ah, 6 V Adapter
Operation
Time
Approx. 250hours (Manganese battery)/
500 hours (Alkaline at 20 °C /68 °F)
Operating
Temperature
-10 °C ~ +40 °C / 14 °F ~ 104 °F
Option
RS232, USB, Mn Battery, Pole Type
※Notice: Specifications are subject to change for improvement without notice.

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2.3. Display & Key
2.3.1. Display
2.3.1.1 B Type
■LCD Front/Rear
■LED Front/Rear
2.3.1.2 P Type
■LCD / LED (front/rear is same)

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2.3.2. Key Function
KEYS
FUNCTIONS
Used to enter all the numeric data
PLU key.
Function key(Back-light, Power Save
Used to enter PLU setting
Used to clear all the numeric price display
Used to clear sum total price
Used to clear all the daily total prices
Used to correct the zero point
To set or clear tare value
PLU save key.
To make several sales transaction by adding up.
To check total sales amount or finalize sales transaction.
Used to enter the decimal point when price is entered.
+
Used to change back-light setting.(OFF, ON. AUTO)
+
Power Save Mode
+
Used to change the unit of weight.(kg or lb)
+
Used to price per 100g ($/100g) or 1oz ($/1oz)

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2.4. Dimension
2.4.1. Scale

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2.4.2. Loadcell
2.5. Sealing Method

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3. Calibration
3.1. Calibration Mode
PR-II supports two calibration mode.
Cal mode 1: Calibration after the initialization data
Cal mode 2: Calibration should only proceed again
After turning on the power, while the number is changed to "999999", "888888", "777777" on
the display, calibration jumper short to enter the cal mode 1. Before turning on the scale,
calibration jumper already shorted, turn on power and enter the cal mode 2.
Apart from calibration mode, PR-II supports Test function such as:
[ZERO] key while holding down, when the power is turned on, and go into test mode.
Test mode can be seen the AD value, voltage, key operation. Press [TARE] key, making the AD
value to 0, press the [ZERO] key to exit the test menu.
1st display: AD value
2nd display: voltage
3rd display: key value

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3.2. Span Calibration
Cal mode 1:
(1) Pressing and holding “Calibration Switch” push power on/off switch. It displays below:
Then enter the settings by pressing a number key, press the [+] key to save settings and
exit the following menu.

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For exampe,
DIGIT 6
DIGIT 5
DIGIT 4
DIGIT 3-2
DIGIT 1
2
0
0
10
0
Decimal 2
Vibration
filter
Disable
Weight unit
=> kg
30 kg
Single
1/3000
Unit price
weight unit
=> kg
Parameter setting, see below table.
DIGIT
Description
Value
Description
DIGIT 6
Unit price
Decinal point
0-3
0: use decimal 0
1: use decimal 1
2: use decimal 2
3: use decimal 3
DIGIT 5
Vibration Filter
0~1
0: Disable
1: Enable
DIGIT 4
Weight unit
0~1
0: kg
1: lb
DIGIT 3-2
Capacity setting
00~14
Refer to capacity table
DIGIT 1
Unit price
weight unit
0
kg (or lb)
1
100 g (or oz)
Capacity table
Setting
Value
Mode
Interval
e (g)
Resolution
00
6 kg
dual
1/2
1/3000
01
6 kg
single
2
1/3000
02
6 kg
single
1
1/6000
03
6 kg
single
0.5
1/12000
04
6 kg
single
0.2
1/30000
05
15 kg
dual
2/5
1/3000
06
15 kg
single
5
1/3000
07
15 kg
single
2
1/7500
08
15 kg
single
1
1/15000
09
15 kg
single
0.5
1/30000
10
30 kg
dual
5/10
1/3000
11
30 kg
single
10
1/3000
12
30 kg
single
5
1/6000

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13
30 kg
single
2
1/15000
14
30 kg
single
1
1/30000
Pressing a number key will be stored by pressing the Enter the set value, the + key.
Caution must be canceld if you do not enter in succession.
(2) Do not place anything on top of the tray, press the [+] key.
(3) Press [+] key and then it displays “On1” message
(4) Load middle weight (ex:1/3 full capacity) on the platform
(5) Press [+] key and then it displays “On2 ” message

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(6) Load middle weight (ex:2/3 full capacity) on the platform
(7) Press [+] key and then it displays “On3 ” message
(8) Load full weight on the platform

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(9) Press [+] key and then, the display will show all the segments and count up "9" to "0".
Cal mode 2:
Cal Mode 2 is a calibration method for using the weight that corresponds to one of the zero and
the three intervals. If you do not have the three weights, even if only a single weight has the
advantage that can be calibrated.

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4. The Schematics and Diagram
4.1. System Block Diagram
4.2. Circuit Diagram
Please call your CAS dealer.
4.3. Interface
4.3.1. RS232C Interface (direct)
1, 4, 6, 7, 8, 9: Not connected
2: RX DATA
3: TX DATA
5: Ground

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4.3.2. USB Interface
1: Vbus (5V)
2: D-
3: D+
5: Ground
5. Firmware Update Method
Please call your CAS dealer.
6. Exploded Views

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7. Parts List
7.1. Electronic Parts
No
Image
Part Code
Parts
Name
DESCRIPTION
Q'ty
1
6D00SWL00000
MAIN
PCB ASS'Y
1
2
6110PRE00000
1
3
6110PRE00010
1
4
6110PRE00020
1
5
6110PRE00030
1
6
6110PRE00040
1

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7
6110PRE00050
1
8
6130PRE00000
1
9
7840W0032750
1
10
7840W0022710
Switch Cable
1
11
7832W0003100
RS232 Cable
1