CAS EXP-2000A User manual

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TABLE OF CONTENTS
1. Introduction......................................................................... 4
2. Explosion structure & class ............................................. 4
3. Caution ................................................................................. 5
4. Features................................................................................ 6
5. Specification ........................................................................ 6
6. Measure of appearance..................................................... 8
7. Front display description.................................................. 9
8. Installation & connection ................................................11
9. Communication program .............................................. 14
10. Transmit data format.................................................... 15
11. Test mode ......................................................................... 16
12. Calibration mode ........................................................... 18
13. Set mode........................................................................... 20
14. Main usage of EXP-2000A........................................... 24
15. Accessory.......................................................................... 28
16. Check message and trouble shooting......................... 29

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1. Introduction
We greatly appreciate for your purchase of the CAS Explosion proof indicator.
These goods have hold excellent performance and splendid properties through strike tests as
well as devoting ourselves under severe quality management.
The EXP-2000A indicator is specially designed not to transmit the internal flame to external
area even if a internal explosion occurs in explosive environment, and is shaped firmly and
delicately designed to coincide with the requirements of severe industrial field.
Before using EXP-2000A, It is recommended to read this manual carefully and to apply the
function application fully.
2. Explosion Structure & Class (Ex d B T4)Ⅱ
Section Description Marking
Type of protection Flameproof enclosure Ex d
Apparatus Group Surface Industries BⅡ
Temperature Class Max. surface temperature 135℃T4
Explosion
Class T1 T2 T3 T4
Class 1
(USE)
Acetone, Ammonium,
Carbon Monoxide,
Titan, Acetic Acid,
Ethyl Acetate, Toluene,
Propane, Benzene,
Methanol, Methane
Ethanol,
Buanol,
Butane,
Acetic
Anhydridede
Gasoline,
Hexane
Acetaldehyde,
Ethyl Ether
Class 2
(USE) Cool Gas Ethylene Oxide
Class 3
(Don't use) Water Gas Hydrogen Acetylene
( Be able to use EXP-2000A only in the inside thick line)

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3. Cautions
(1) Cautions when install EXP-2000A at explosion zone.
■Check to tighten bolts on a front cover.
■Certainly Connect EXP-2000AAC POWER to AC220V, 50Hz/60Hz AC power.
■Should use power supply cable included an earthing line.
■When connect AC POWER at explosion a zone, certainly use PLUGS AND
RECEPTACLES(Cable Gland).
(2) Cautions when check EXP-2000A at a fixed period.
■Certainly cut off power supply Before open the front cover.
■When assemble the front cover, certainly tighten bolts.
♣CHECK ITEMS
ITEMS Check Method Description Remark
CASE Naked eye Have no rust, damage Clean, Exchange
Display
Window Naked eye Have no damage Exchange
BOLT Naked eye,
Touch
Don't get loose.
Have no rust, dust. Tighten, Clean
PACKING Naked eye.
Touch
Have no
crack, notable modify. Exchange
Cable Gland Naked eye,
Touch
Have no damage, blazing fire.
Don't get loose.
Tighten,
Exchange
Terminal Naked eye Don't get loose. Tighten
(3) Entering Method of External Wire
■External Wire should be passed through CABLE GLAND and connected to terminal.
■The Conduit is used PF 1/2" size.
(4) CAUTIONS before uses EXP-2000A
■Do not press the keys hardly, for the keys are in operation with soft touch.
■Keep away EXP-2000A from the rain.
■Avoid sudden temperature change.
■Do not install EXP-2000A in a place with high voltage and excessive electrical noises.
■Keep it in dry place.
■Do not use under direct rays.
■Do not use at the place with excessive electrical

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4. The Features of EXP-2000A
(1) Features
■High quality, High accuracy
■Appropriate for weight and measurement system
■Easy operation
■RFI/EMI screened
■WATCHDOG circuitry (System restoration)
■WEIGHT BACK-UP (Weight memory at sudden power failure)
(2) Main Function
■Store date, time and calculated data at sudden power failure
■Adjustable display rate(Digital filter function)
■Printer connection (serial printer)
■Tare weight setting with keys
■Storage of measured times
■PC interface
■Zero-tracking function
■Automatic, manual hold function
■Users can set the desirous max. weight and a division freely
■Print date and time by built-in clock
■Selfhardwaretest
5. Technical Specification
■Analog Part & A/D Conversion
Loadcell Exciting Voltage DC 5V, Up to 4×350Ωload cells
Full Scale Input Signal 20 mV, including dead load
Zero Adjust Range 0.05 mV ～5 mV
2 ㎶/D (H-44, OIML)
Input Sensitivity 0.5 ㎶/D (Non H-44, OIML)
System Linearity 0.02％of FS
A/D internal resolution 1 / 200,000
5,000 dd (H-44, OIML)
A/D external resolution 30,000 dd (H-44, OIML)
A/D conversion speed 10 times/sec

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■Digital Part
Span calibration Full Digital Calibration : SPACTM
(Single pass automatic span calibration)
Display LED (6 digit)
Size of letter 14 mm (Height)
Division ×1, ×2, ×5
Display below zero “-” minus signal
Permitted limit tare Full capacity
“STABLE” ▄LAMP Weight is stable
“NET” ▄LAMP ON (net weight), OFF (gross weight)
“TARE” ▄LAMP tare is used
“ZERO” ▄LAMP “0” kg
■General Specification
Power AC 220V, 50/60 Hz
Optional : AC 110V, 50/60 Hz
Size 180(W) x 228(D) x 157(H)
Temperature -10℃~ +40℃
Weight/Internal Cubic Volume Approx. 7.4 kg / 2500 ㎤
Current Approx. 0.1 A

6. MEASURE OF APPEARANCE
합 격 일 :1998년 7월 3일
방폭등급 : Ex d B T4
제 조 원 : (주) 카 스
한국산업안전공단 검정필
합격번호 : 98 - 1165 - Q1
ST NET
CURRENT
SERIAL NO.
.A
.
.
.
.
.
.
.
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7. Front Display Description
(1) LED lamp
NETS T TARE ZERO
Stable Lamp : ON when the Weight is stable.
Net Lamp : ON when the current weight is NET weight.
Zero Lamp : ON when the Current weight is 0kg.
Tare Lamp : ON when the Tare weight is stored.
(2) Keyboard
■ZERO Key
Used to return the display to the center of ZERO when the platform is empty.
Used to enter the "TEST" mode.
■HOLD Key
Use to weight unstable things.
Used to enter the "SET" mode.
■TARE Key (automatic tare weight input)
Used for weighing item by using the container.
When this key is pressed, the scale stores current weight as the tare weight.
If you perss "TARE" key in unload condition, tare setting is released.
Used to enter the "CAL" mode.
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■SUM Key
Used to print total weight of previously weighed result by ID number.
For example, let's assume that the current specified ID number is 4.
The print form is as belows.
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SUM TOTAL
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DATE : 1997. 9. 25
TIME : 9:30
ID : 14
COUNT : 5
TOTAL : 350.0 kg
After printing is done, the total weight and count corresponding to the
ID number is initialized to 0.
■TOT Key
Used to print total weight regardless of ID number.
The print form is as belows.
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OVERALL TOTAL
---------------------------
DATE : 1997. 9. 25
TIME : 9:30
ID : 14
COUNT : 5
TOTAL : 350.0 kg
After printing is done, the total weight and count remains.
■ID Key
Type "ID" key, the ID code using by numeric key and then the ID code
is registered. The code range is from 0 to 4.
■PRT Key
Print key.
If this key is pressed, the print format you chose in set mode (see function F06)
is to be printed.
■G/N Key (Gross/Net key)
Toggle key between GROSS weight and NET weight. The annunciators and
display will alternate between GROSS and NET as well.
In case tare weight is REGISTERED, tare and item's total weight is G.
weight and only item's weight is N. weight.

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■K.T Key (key tare key)
When you already know the tare weight, press K.T Key and input tare
weight using by numeric keys and memorize it by pressing ENTER key.
■TIME Key
Used to check date and time.
■CLR Key
Usage 1: Clear the number you are entering on the display.
Usage 2: Used to enter such floating point number as 0.2, 0.01 etc.
■SET Key
Used to store current condition and exit in CALIBRATION, TEST, SET mode
8. INSTALLATION & CONNECTION
(1) Internal terminal connection
■TB1 : AC POWER
- AC : 220V,50/60Hz (Optional : AC 110V, 50/60Hz)
A C A C G N D- GND : Ground
■TB2 : RS-232/RS-489(OPTION)
OUT+ OUT- IN- IN+ GND TXD RXD
■TB3 : Load cell.
EX+ EX- SIG+ SIG- G
N D
(2) Load cell connection
Connect load cell wire to terminal in the indicator.
* Must connect load cell wire to be through electro-pipe.
Note. Each load cell manufacturer's or model's wire color could be different.
In that case, please note the following diagram.
* Manufactures's wire color