CAS NT-580A User manual

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1. Introduction
We greatly appreciate for your purchase of the CAS industrial indicator.
These goods have hold excellent performance and splendid properties
through strike Tests as well as devoting ourselves under severe quality
management.
CAS indicator (NT-series) is shaped firmly and delicately designed
a coincide with the special requirements of several industrial fields and
includes many functions and various external interfaces. Also, it is
programmed on the basic of the user's convenience and contains help
display functions to be used easily.
Before using NT-580A, It is recommended to read this manual carefully
and to apply the function application fully.

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Precautions
Observe the following safety precautions :
Warning
When any damage or defect
occurs, contact your CAS
authorized dealer immediately
for proper repair.
Insert plug firmly to wall outlet to
prevent electric shock.
Scale must be grounded to
minimize electricity static. This
will minimize defect or electric
shock.
Do not pull the plug by its cord
when unplugging. Damaged
cord could cause electric shock
or fire.
To prevent from fire occurring,
Do not place or use the scale
near flammable or corrosive
gas.
To reduce electric shock or
incorrect reading, Do not spill
water on the scale or place it in
humid condition.
Avoid placing the scale near
heather or in direct sunlight.

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Attention
For consistent and accurate
reading, maintain periodical
check by your CAS authorized
dealer.
Avoid sudden shock to the scale.
Internal mechanism could by
damaged.
Attach the rubber pad to the
bottom of the indicator.
Elimination is possible.
Place the scale on firm and
temperature consistent
environment.
Keep the scale away from other electromagnetic generation devices.
This may interfere with accurate reading.
Our Dealers : CAS feels that each of its valued customers should get the best service
available. Whether it’s the initial installation of our product,
maintenance/repair work, or simply answering questions about our products,
CAS Corporation and all of its Authorized Dealers are highly trained to assist
you with any need regarding CAS products.

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Table of Contents
1. Features .............................................................................10
1-1. Features...................................................................................................... 10
1-2. Main function ............................................................................................ 10
1-3. Analog Part & A/D Conversion ............................................................... 11
1-4. Digital Part................................................................................................. 11
1-5. General Specification................................................................................ 12
1-6. Option Specification ................................................................................. 12
2. Measure of Appearance ..................................................13
2-1. Measure of Appearance ............................................................................ 13
2-2. Front Panel................................................................................................. 14
2-3. Rear Panel.................................................................................................. 18
3. Installation & Connection ..............................................19
3-1. Loadcell connection.................................................................................. 19
4. Calibration Mode.............................................................20
4-1. How to enter Calibration Mode ............................................................... 20
4-2. Available key in the Calibration Mode .................................................... 20
4-3. Calibration Menu ...................................................................................... 20
- Maximum Value Set.................................................................................................. 21
- Setting Minimum division and Dot position .......................................................... 21
- Setting Multi Calibration Range .............................................................................. 22
- Zero Calibration ......................................................................................................... 22
- Setting Weight value.................................................................................................. 23
- Weight Calibration ..................................................................................................... 23
- Zero Adjust ................................................................................................................. 24
- Weight Constant Calibration .................................................................................... 24
4-4. Sealing Method ......................................................................................... 25

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5. Set Mode ........................................................................... 26
5-1. How to enter Set Mode.............................................................................26
5-2. Available key in Calibration Mode ..........................................................26
5-3. Menu of Set Menu(F01 ~ F99) ................................................................27
5-3-1. General function ............................................................................................30
5-3-2. Serial interface ...............................................................................................33
5-3-3. Print function .................................................................................................37
5-3-4. Batching Operation Function.......................................................................41
5-3-5. Option Function.............................................................................................43
5-3-6. Input set point ..............................................................................................44
5-3-7. Initialize set Mode Value ..............................................................................44
6. Test Mode ......................................................................... 45
6-1. Method of enter the Test Mode ................................................................45
6-2. Explain key in the Test Mode...................................................................45
6-3. Test Menu ..................................................................................................46
- Key Test .......................................................................................................................46
- Display Test.................................................................................................................46
- A/D Test .......................................................................................................................47
- RS232(Serial) Test .....................................................................................................47
- Print Test ......................................................................................................................48
- External In/Out Test ...................................................................................................48
- BCD out(Option) Test................................................................................................49
- Analog out (Option) Test ...........................................................................................49
- BCD In(Option) Test .................................................................................................50
- RTC Test......................................................................................................................50

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7. Weighing Mode ................................................................51
7-1. Method of enter the Weighing Mode....................................................... 51
7-2. Explain key in the Weighing Mode ......................................................... 51
7-3. External In/Out control Interface ............................................................. 53
7-4. Item Code .................................................................................................. 55
7-5. Set Point Input ........................................................................................... 56
7-6. Regulation of Input Set Point ................................................................... 57
7-7. Batching Operation ................................................................................... 58
User Program Control Mode .................................................................................. 58
- Normal Batching ........................................................................................ 60
- Loss-in- Weight Batching.......................................................................... 62
Automatic Program Control Mode ........................................................................ 58
- Normal Batching ........................................................................................ 64
- Loss-in- Weight Batching.......................................................................... 66
8. Serial Communication ....................................................68
8-1. RS-232C Connection................................................................................ 68
8-2. Serial communication device connection................................................ 69
8-2-1. Sub display connection ................................................................................69
8-2-2. CAS TOP printer connection .................................................................... 69
8-2-3. CP-7000 Series printer connection............................................................. 69
8-3. RS-232C PROTOCOL............................................................................. 70
8-3-1. 22 Bytes of CAS ........................................................................................... 70
8-3-2. 10 Bytes of CAS ........................................................................................... 71
8-3-3. 18 Bytes of AND ..........................................................................................71
8-4. Simple Interface Program......................................................................... 72

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9.OPTION ............................................................................ 73
9-1. Current Loop Serial Out ...........................................................................73
9-2. RS-485 Serial Interface.............................................................................74
9-3. BCD Out Interface ....................................................................................75
9-4. Analog Out Interface(4~20mA)...............................................................77
9-5. Analog Out Interface(0~10V) ..................................................................80
9-6. BCD IN Interface ......................................................................................82
10. Error Message ............................................................... 84
10-1. Error Message in the Calibration Mode ................................................84
10-2. Error Message in the Weighing Mode...................................................85

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1. Features
1-1. Features
■High speed, High accuracy
■High speed micro processor adoption
■A/D conversion speed : Maximum 200 times/sed
■Appropriate for weight and measurement system
■Easy operation and various options.
■Simple and prompt Full Digital Calibration
(SPACTM: Single pass automatic span Calibration)
■RFI./EMI screened
■Watch Dog circuitry (System restoration)
■Weight Back-up
(Weight memory at sudden power failure)
1-2. Main Functions
■Store date, time and calculated data at sudden power failure.
■Various specification on weight conversion speed.
(Digital filter function)
■Various printer connection. (RS-232C Serial printer)
■Tare weight setting with keys.
■Storage of measured times.
■Set Point input & highest, lowest limit input.
■External input 6 relay.
■External output 8 relay.
■Users can set the desirous max. weight and a division freely.
■Control various external equipment by inner external input/output.
■Print date and time by inner clock.
■Self hardware Test.
■Prompt A/S is available for Test of each part of circuit by module is possible.

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1-3. Analog Part & A/D Conversion
Load Cell Excitation Voltage DC 10V, 8 x 350Ωload cells
Zero Adjustment Range 0.05mV 20mV∼
Input Sensitivity 1.2μV/D (H-44,OIML)
0.6μV/D (Non H-44,OIML)
System Linearity Within 0.01％of F.S.
A/D Internal Resolution 1 / 200,000
A/D External Resolution 1/5,000 (H-44,OIML)
1/20,000 (Non H-44, OIML)
A/D Conversion Speed Maximum 200 times/sec
1-4. Digital Part
Span Calibration Full Digital Calibration : SPAC™
(Single automatic span Calibration)
Display VFD 7Digit
Size of letter 13 mm (Height)
Division ×1, ×2, ×5, ×10, ×20, ×50
Tare Subtraction Full capacity
Display Below Zero “-”Minus