Chemitech IT Perdana pH/ORP-3500 Series Manuale utente
pH/ORP-3500
pH/ORPTransmitting controller
Operation manual
V1.1
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Introduction
Thanks for choosing pH/ORP-3500 series pH/ORP meter. Please read the operation manual
carefully before installation. Proper sensor installation and parameter setting would give maximum
performance and advantage of this instrument for your good usage. So please carefully read this
manual before installation.
This instrument is a precise electrochemical analysis Dosing &Control Integration System,
which should be operated by technicians with relevant professional knowledge.
Please contact technical backup when you meet any problems during installation and usage.
Check the actual product with complete set after you receive the package, and contact us if
any missing or damage.
Our serious promise:
1. The meter’s quality guarantee is one year from the date of purchasing. During this period,
if the meter has quality problems, manufacturer is responsible for maintenance for free or
replacement.
2. We provide lifelong maintenance service for the product whatever you purchase from us or
distributors.
3. If the damage of the meter is caused by the following reasons, it is out of the maintenance
service:
A).The meter is burned caused by misconnection with high voltage power supply or soggy.
B).The meter is refitted or misused without permission.
C).The meter is damaged under the condition out of use environment.
D).The relevant damage caused by choosing the wrong type.
E).The physical damage caused by ultimate load
F).The meter is out of operation caused by improper storage and transportation (refer to
SJ/T10463-93 standard)
G).Consumable material is out of maintenance service.
Please take care of the items which with this sign.！
*Without the influence on the operation, any small change or improvement on the products by the
manufacturer will not be notified separately. Please make the object as the standard
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Content
Ⅰ、GENERAL..............................................................................................................1
1.1 WORKING PRINCIPLE................................................................................................................. 1
1.2APPLICATION................................................................................................................................ 1
1.3 CLASSIFICATION......................................................................................................................... 2
1.4TECHNIQUE INDEX...................................................................................................................... 3
Ⅱ、INSTALLATION....................................................................................................4
2.1 INSTALLATION OF INSTRUMENT............................................................................................ 4
2.2ELECTRICAL CONNECTION....................................................................................................... 5
2.3DIAGRAM OF 4-20MA OUTPUT.................................................................................................. 6
2.4 RELAY CONTROL CONNECTION.............................................................................................. 7
2.5 CONTROL MODE.......................................................................................................................... 7
2.6INSTALLATION OF SENSOR....................................................................................................... 8
2.6.1ASSEMBLING AND REPLACEMENT.................................................................................. 8
2.6.2INSTALLATION METHOD.................................................................................................... 9
2.6.3 INSTALLATION REQUIREMENT...................................................................................... 10
Ⅲ、SETTINGS............................................................................................................10
3.1MEASUREMENT MODE............................................................................................................. 12
3.1.1NORMAL DISPLAY..............................................................................................................12
3.1.2 TRANSIENT DISPLAY........................................................................................................ 12
3.2 SETTING MODE.......................................................................................................................... 12
3.2.1 FUNCTION SELECTION..................................................................................................... 13
3.2.2 4MA SETTING...................................................................................................................... 13
3.2.3 20MA SETTING.................................................................................................................... 13
3.2.4HIGH-LIMIT ALARM SETTING.......................................................................................... 13
3.2.5 LOW-LIMIT ALARM SETTING.......................................................................................... 13
3.2.6 ALARM HYSTERSIS SETTING.......................................................................................... 14
3.2.7 TEMPERATURE SETTING.................................................................................................. 14
3.3 SENSOR CALIBRATION............................................................................................................14
3.3.1 SYSTEM CALIBRATION..................................................................................................... 14
3.3.2 BUFFER SOLUTION CALIBRATION................................................................................ 14
3.3.3 OFF-LINE CALIBRATION.................................................................................................. 15
Ⅳ、MAINTENANCE................................................................................................. 16
4.1 SENSOR MAINTENANCE......................................................................................................... 16
4.2 USAGE OF SENSORS................................................................................................................. 16
Ⅴ、TROUBLE SHOOTING.......................................................................................17
Ⅵ、COMPLETE SET................................................................................................. 17
Ⅶ、ORDER DIRECTORY......................................................................................... 18
7.1SENSOR SELECTION.................................................................................................................. 18
7.2FLOW DEVICE SELECTION....................................................................................................... 18
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1
Ⅰ.GENERAL
pH/ORP-3500 series is a kind of popular and cost-effective online pH and ORP
controller , with plug-in pH/ORP-1220 sensor, which have good measurement
accuracy, anti-interference,easy to install and operation features.
¾White backlight LCD screen,several operations, easy for operation
¾Be compatible for six kinds of buffer solution(10.00,9.18,7.00,6.86,4.00,4.01)
which suitable for international standard.
¾Selectable temperature sensor which reduce the replacement cost.
¾Manual calibration is easy for on-site calibration.
¾EMC enhancement type could run smoothly under kinds of industry
environment.
¾（4~20）mA output support instrument/transmitter modes and satisfy all
（4~20）mA receiving unit.
¾Double relay high/low and delay control function could fulfill pH or ORP
interval control and adjustment.
¾Several power supply to be selection according to the different models.Input
AC/DC power, no polarity connection.
1.1 Working Principle
The weak voltage change is generated when H+affected the inserted sensor, the
changeable value will transmit to the instrument. After converting and calculating the
generated pH/ORP signal, the instrument will show the values on the screen.
1.2Application
This series instruments are widely used for online pH/ORP monitoring in
environment protection water treatment, pure water treatment, industrial process and
so on.
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1.3 Classification
model Power
supply
frequency
（Hz）Current mode Sensor selection
pH/ORP-3500 DC 24V ------- Instrument/transmitter pH-1220B plug-in
sensor;
ORP-1220B plug-in
sensor or other
sensors;
TE-1230-14
temperature sensor
pH/ORP-3510 AC
110V 50/60 Instrument/transmitter
pH/ORP-3520 AC
220V 50/60 Instrument/transmitter
【NOTE】
1. Put the instrument in dry environment and the water-drop or moisture will
cause the damage or measurement error；
2. Pay more attention on the power supply before wiring connection.
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1.4Technique index
model pH/ORP-3500series pH/ORP online transmitting controller
Measureme
nt range
pH 0.00~14.00
ORP -2000mV~2000mV
Temp. （0.0~50.0）℃（temperature compensation component: NTC10K
Resolution
pH 0.01
ORP 1mV
Temp 0.1℃
accuracy
pH 0.1 level
ORP ±5mV（electronic unit）
Temp ±0.5℃
Approximate input
impedance 3×1011Ω
Buffer solution 10.00；9.18；7.00；6.86；4.01； 4.00
Temp. compensation
range
（0~50）℃（with 25℃ as standard）
Manual and automatic temperature compensation
(4~20)mA
characteristic
s
Isolated,fully adjustable,reversible,instrument/transmitter for
selection
Loop
resistance 500Ω（Max），DC24V
accuracy ±0.1mA
Control
contact
Electrical
contacts Double relay SPST-NO, hystersis model
Loop
capacity AC220V/AC110V 2A(Max)；DC24V 2A(Max)
Power consumption ＜3W
Working
environment
temperature （0~50）℃
humidity ≤85％RH(none condensation)
Storage environment Temp.(-20-60) ℃;relative humidity:≤85%RH(none condensation
Outline dimension 48mm×96mm×80mm（H×W×D）
Hole dimension 44（H）mm×92（W）mm
installation Panel mounted,fast installation
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Ⅱ、INSTALLATION
Top view Side view
2.1 Installation of instrument
pH/ORP-3500 series is adopted panel mounted type, which could be installed easily.
Please follow the steps:
1. Put the instrument into the fixed hole 44mmX92mm(HxW)
2. Then push the quick clamp along with the trench and fasten the instrument.
3. Do not let the instrument drop on the floor when dismounting the
meter.Withdraw the quick clamp and take the instrument down.
Do not put the instrument unde
r
the sun since the UV will dama
g
ethe
LED screen.
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2.2Electrical Connection
The measurement cable can not be mixed with high-pressure and high frequency
cable. To avoid any interference, the cables should be 30cm distance and connect
with the ground.
Connect the power line and signal line according to the below diagrams:
pH/ORP-3500 rear terminal
pH/ORP-3510 rear terminal
pH/ORP-3520 rear terminals
Wiring connection:
0V/220V AC 220V input interface (pH/ORP-3520)
0V/110V AC 110V input interface (pH/ORP-3510)
24VA/B DC 24V input interface (pH/ORP-3500)
（Internal automatic recognition of polarity ）
Electromagnetic compatibility group protection terminal
Hi High limit alarm control terminal blocks
Low Low limit alarm control terminal blocks
T- （T+、T-） transmitting mode external feed
T+/I- Transmitting /Instrument Mode public terminal
I+ (I+、I-)Instrument mode mA output terminal
TEMP-I Connect the receiving terminal of the temp.sensor(red)
TEMP-G Connect grounding terminal of the temp. sensor (black)
NC Empty terminal
BNC connector Connect pH or ORP sensor
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2.3Diagram of 4-20mA output
Instrument mode
Transmitting mode
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2.4 Relay control connection
Relay ON/OFF contact component control wiring diagram
2.5 Control mode
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