CeYeKo pHI01 User manual

CYK Tech
Online pH/ORP Meter
User’s Manual
pHI01
Copyright © CeYeKo Technology 2021 pHI01_V0.0
Committed to Process Automation Solutions

CYK Tech
Thank you for purchasing pH/ORP controller. Please read this manual carefully before
operating and using it correctly to avoid unnecessary losses caused by false operation.
Note :
 Modification of this manual’s contents will not be notified as a result of some factors,
such as function upgrading.
 We try our best to guarantee that the manual content is accurate, if you find something
wrong or incorrect, please contact us.
 This product is forbidden to use in explosion-proof occasions.
Version :
pHI01_V0.0
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P r e f a c e

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In order to use this product safely, be sure to follow the safety precautions described.
About this manual :
 Please submit this manual to the operator for reading.
 Please read the operation manual carefully before applying the instrument. On the pre-
condition of full understanding.
 This manual only describes the functions of the product. The company does not guaran-
tee that the product will be suitable for a particular use by the user.
Precautions for protection, safety and modification of this product
 To ensure safe use of this product and the systems it controls, Please read carefully the
operation manual and understand the correct application methods before putting into
operation, to avoid unnecessary losses due to operation mistakes. If the instrument is
operated in other ways not described in the manual, the protections that the instru-
ment give may be destroyed, and the failures and accidents incurred due to violation of
precautions shall not be borne by our company.
 When installing lightning protection devices for this product and its control system, or
designing and installing separate safety protection circuits for this product and its cont-
rol system, it needs to be implemented by other devices.
 If you need to replace parts of the product, please use the model specifications speci-
fied by the company.
 This product is not intended for use in systems that are directly related to personal sa-
fety.Such as nuclear power equipment, equipment using radioactivity, railway systems,
aviation equipment, marine equipment, aviation equipment and medical equipment.If
applied, it is the responsibility of the user to use additional equipment or systems to
ensure personal safety.
S a f e t y P r e c a u t i o n s

CYK Tech
 Do not modify this product.
 The following safety signs are used in this manual:
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Hazard, if not taken with appropriate precautions, will result in serious per-
sonal injury, product damage or major property damage.
 Confirm if the supply voltage is in consistent with the rated voltage before operation.
 Don’t use the instrument in a flammable and combustible or steam area.
 To prevent from electric shock, operation mistake, a good grounding protection must
be made.
 Thunder prevention engineering facilities must be well managed: the shared grounding
network shall be grounded at is-electric level, shielded, wires shall be located rationally,
SPD surge protector shall be applied properly.
 Some inner parts may carry high voltage. Do not open the square panel in the front
except our company personal or maintenance personal acknowledged by our company,
to avoid electric shock.
 Cut off electric powers before making any checks, to avoid electric shock.
 Check the condition of the terminal screws regularly. If it is loose, please tighten it be-
fore use.
 It is not allowed to disassemble, process, modify or repair the product without authori-
zation, otherwise it may cause abnormal operation, electric shock or fire accident.
 Wipe the product with a dry cotton cloth. Do not use alcohol, benzine orother organic
solvents. Prevent all kinds of liquid from splashing on the product. If the product falls
into the water, please cut off the power immediately, otherwise there will be leakage,
electric shock or even a fire accident.
 Please check the grounding protection status regularly. Do not operate if you think that
the protection measures such as grounding protection and fuses are not perfect.
 Ventilation holes on the product housing must be kept clear to avoid malfunctions due
to high temperatures, abnormal operation, shortened life and fire.
 Please strictly follow the instructions in this manual, otherwise the product's protective
device may be damaged.
D A N G E R !

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 Don’t use the instrument if it is found damaged or deformed at opening of package.
 Prevent dust, wire end, iron fines or other objects from entering the instrument during
installation, otherwise, it will cause abnormal movement or failure.
 During operation, to modify configuration, signal output, startup, stop, operation safety
shall be fully considered. Operation mistakes may lead to failure and even destruction
of the instrument and controlled equipment.
 Each part of the instrument has a certain lifetime, which must be maintained and repai-
red on a regular basis for long-time use.
 The product shall be scrapped as industrial wastes, to prevent environment pollution.
 When not using this product, be sure to turn off the power switch.
 If you find smoke from the product, smell odor, abnormal noise, etc., please turn off
the power switch immediately and contact the company in time.
W A R N I N G !
 Do not modify this product.
 The following safety signs are used in this manual:
Warning:Pay special attention to the important information linked to pro-
duct or particular part in the operation manual.

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 The company does not make any guarantees for the terms outside the scope of this
product warranty.
 This company is not responsible for damage to the instrument or loss of parts or unpre-
dictable damage caused directly or indirectly by improper operation of the user.
D i s c l a i m e r
After opening the box, please confirm the package contents before starting the operation.If
you find that the model and quantity are incorrect or there is physical damage in appearan-
ce, please contact us.
Number Name Quantity Note
1pH/ORP Controller 1-
2Manual 1-
3Certificate 1-

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C o n t e n t s
Preface 2
Safety Precautions 3
Disclaimer 6
Contents 7
Chapter 1 : Introduction 8
1.1 Characteristics 8
1.2 Parameters 9
Chapter 2 : Installation 10
2.1 Instrument Installation 10
2.1.1 Installation Precautions 10
2.1.2 Installation should be kept away from the following site 10
2.1.3 Installation Methods 11
2.2 Electrode Installation 12
2.3 Wiring 13
2.3.1 Identification of Terminals 13
Chapter 3 : Navigation Keys 14
3.2 Definition of Buttons 14
Chapter 4 : System Menu & Operating 15
4.1 Monitoring Page 15
4.2 Password Verification Page 16
4.3 Operation Menus 16
4.3.1 Main Menu 16
4.3.2 System Setting 17
4.3.3 Signal Setting 17
4.3.4 Online Calibration 18
4.3.5 Remote Setting 18
4.3.6 Alarm Setting 19
4.3.7 Information Inquiry 19
Chapter 5 : Communication 20
Chapter 6 : Maintenance 22
Chapter 7 : Troubleshooting 23

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Independent research and development of electronic online monitoring pH / ORP va-
lue, through the RS485 or current transmission remote access to the monitoring room for
record and save.
pH / ORP tester is one of the intelligent online chemical analysis equipment, is a
widely used in thermal power, chemical fertilizer, metallurgy, environmental protection,
Pharmaceutical, biochemical, food and tap water solution pH value or ORP value and tempe-
rature of the continuous monitor.
Continuous monitoring data through the transmission output connection recorder to
achieve remote monitoring and recording, you can also connect the RS485 interface through
the MODBUS-RTU protocol can be easily connected to the computer to achieve monitoring
and recording.
C h a p t e r 1 : I n t r o d u c t i o n
After opening the box, please confirm the package contents before starting the operation.If
you find that the model and quantity are incorrect or there is physical damage in appearan-
ce, please contact us.
1 . 1 C h a r a c t e r i s t i c s :
 Design of board card modularity, for convenience of assembly and configuration.
 2.4 inches 12864 lattice screen.
 Isolating transmitting output, with little interference.
 Isolating RS485 communication.
 Can be pH / ORP measurement, temperature measurement, upper and lower limit
control, transmission output, RS485 communication.
 Configurable manual and auto temperature offset function.
 Configurable upper/lower limit warning and delay.
 Configurable hummer and LCD backlight switch.

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1 . 2 P a r a m e t er s :
Screen Size 2.8 inch Monochrome LCD (Liquid Crystal Display)
with a resolution of 128*64
Overall Dimension: 100mm × 100mm × 150mm
Cutout Dimension 92.5mm × 92.5mm
Weight 0.58Kg
Ingress Protection IP65
Measure Variables pH/ORP
Measure Range
pH : 0.00 ~ 14.00pH
ORP : -1000 ~+1000mV
-2000~+2000mV ( Optional )
Accuracy pH : ± 0.02pH
ORP : ± 1mV
Input Resistance ≥10¹²Ω
Temperature Compen-
sation
NTC10K : -10~60°C Accuracy ± 0.3°C
NTC10K : 60~130°C Accuracy ± 2°C
PT1000 : Accuracy ±0.3 °C
-10-130°C Manual / Automatic
Output 4~20mA Output, Maximum Loop is 750Ω ±0.2 %FS
RS485 Output Isolated, MODBUS-RTU RS485
Alarm Relay 2 Channels, Pickup/Breakaway AC250V/3A
Relative Humidity 10~85 %RH (No Condensation)
Operating Temperature 0 ~ 60°C
Power Supply AC：220V±10%，50Hz/60Hz
Storage Conditions
Temperature：-15~65°C
Relative humidity：5~95 %RH (No Condensation)
Altitude:<2000m

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C h a p t e r 2 : I n s t a l l a t i o n
2 . 1 I n s t r u m en t I n s t a l l a t i o n :
Please read the instruction of installation location and method of instrument as described during ins-
tallation.
2 . 1 . 1 I n s t a l l a t i o n P r e c a u t i on s
 This product is tray mounted.
 Please install it indoors, avoiding wind, rain and direct sunlight.
 In order to prevent the internal temperature of this product from rising, please install it
in a well-ventilated place.
 When installing this product, please do not tilt it to the left and right, try to install it ho-
rizontally (it can be tilted back <30 °).
2 . 1 . 2 I n s t a l l a t i o n s h o u l d b e k ep t a w a y f r o m t h e f o l l o w i n g s i t e
 In direct exposure to sunlight and near thermal equipment.
 With ambient temperature over 60 degrees in operation.
 With humidity over 85% in operation.
 Nearby electromagnetic source.
 In strong mechanical vibration.
 With varying temperature and dew condensation.
 With oil smoke, steam, humidity, dust and corrosive gases.

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2 . 1 . 3 I n s t a l l a t i o n M e t h o d s
Install a 92.5*92.5 mm mounting hole on the instrument cabinet or mounting panel. The thickness of
the mounting panel is 1.5mm~13mm.

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The instrument into the mounting hole and then buckle on the Snap, as shown below.
2 . 2 E l e c t r o d e I n s t a l l a t i o n :
Schematic Diagram of Common Installation Method
❶Side wall installation
❷Flange mounted at the top
❸Pipe installation
❹ Top installation
❺Submersible installation
❻Flow-through installation
The interface must be in 15°oblique angle, or it will affect the normal test and use of the
electrode. We won’t be responsible for any results due to this.

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Wiring Diagram
2 . 3 W i r i n g :
2 . 3 . 1 I d e n t i f i c a t i o n o f T e r m i n a l s
 INPUT : Measuring terminal of the electrode
 REF : Reference terminal of the electrode
 NC : Unidentified
 A: Temperature compensation terminal A,NTC10K and PT1000 connect here
 B: Temperature compensation terminal B,NTC10K and PT1000 connect here
 C: Temperature compensation terminal C, PT1000 three-wire temperature gro-
unding, PT1000 two-wire need to be short-connected to TEMPB, not NTC10K.
 NC : Unidentified
 485A+ : RS485 communication interface A +
 485B- : RS485 communication interface B-
 I (+) : 4-20mA output end+
 I (-): 4-20mA output end-
 220V L : AC220V Live Wire
 220V N : AC220V Neutral Wire
 HO : High alarm normally open relay
 HC : High alarm normally closed relay
 LO : Low alarm normally open relay
 LC : Low alarm normally closed relay
 COM : Common

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C h a p t e r 3 : N a v i g a t i o n K e y s
3 . 1 B u t t o n D i s p l a y :
3 . 2 D e f i n i t i o n o f B u t t o n s :
Sign Button
Name Key Function
EXIT
Under "Monitoring Page" - Alarm view
Under "Menu Page" - Return to the previous page
Under "Calibration Page" - Skip this item
RIGHT Make a recurrent selection of digit of parameters modify the
original indication value
MENU Under “Monitoring Page” - Enter the MENU
Under “Menu Page” - Exit the MENU
DOWN Under “Menu Page” - Select the related menü
Modify the values in the configuration state
ENTER Under “Menu Page” - Enter the sub-menu or confirm modifi-
cation

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C h a p t e r 4 : S y s t e m M e n u & O p e r a t i n g
4 . 1 M o n i t o r i n g P a g e :
The instrument is equipped with monochrome lattice LCD, 128*64 resolution.
 Push [MENU] to enter password verification page; input password to enter the home
page.
 Push [EXIT] to enter alarm inquiry page, to inquire the current warning configuration
information.
pH Monitoring Page
ORP Monitoring Page

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4 . 2 P a s s w o r d V e r i f i c a t i o n P a g e :
4 . 3 O p e r a t i o n M e n u s :
4 . 3 . 1 M a i n M e n u :
- - - - U S E R P A S S W O R D - - - -
P a s s w o r d : 0 0 0 0
 Input password and push [ENTER] to enter home page.
 Initial password is 0000, which can be modified via password modification function.
 Please contact us if you forget your password.
 System Setting : Settings of language, buzzer and backlight,
modification of password and factory settings
 Signal Setting : Toggle electrode type and automatic/manual
temperature compensation.
 Online Calibration : Calibrate or correct pH and ORP signal.
 Remote Setting : Settings of RS485 parameters and
current transmission output.
 Alarm Setting : Settings of parameters of high and low warning.
 Information Inquiry : Current version number.

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4 . 3 . 2 S y s t e m S e t t i n g :
 Language : Language type; English.
 Buzzer : Settings of switch of buzzer during warning.
 Backlight : Settings of LCD backlight.
 Change Password : Password modification and log-in with new password.
 Factory Setting : Return to factory settings
4 . 3 . 3 S i g n a l S e t t i n g :
 Electrode Type : Set the electrode type, pH electrode and
ORP electrode two types.
 Temperature Compensation : Set the automatic warming or manual temperature
compensation, the temperature range of -10-130°C.
Temp Switch: auto temperature offset NTC10K or
PT1000 or manual temperature compensation,
temperature range: -10°C—130.0°C.

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 pH Calibration : Enter the pH calibration screen, the first pH electrode into the
4.00pH standard solution, standing for a moment, to be stable after the show, press
the 【ENT】, then the pH electrode into the 6.86pH standard solution Set the pH electro-
de into the 9.18pH standard solution, put it aside for a moment, after the test is stable,
press 【ENT】, the display shows the success of the calibration, the whole process of pH
calibration completes.
 pH Modification : The measured pH can be modified between 2 pH values.
 ORP Calibration : Enter the ORP calibration screen, the first ORP electrode into the
86mV standard solution, standing for a moment, to be shown after the stability, press
the【ENT】, then the ORP electrode into the 256mV standard solution, static Set a mo-
ment, after the display is stable, press the 【ENT】display calibration is successful, ORP
calibration process is over.
 ORP Modification : The measured ORP can be modified between 300mV.
 Temp. Modification : You can correct the temperature of the automatic tempe-
rature compensation, the correction range is ± 20.0 °C.
4 . 3 . 4 O n l i n e C a l i b r a t i o n :
4 . 3 . 5 R e m o t e S e t t i n g :
 RS485 Setting : Settings of 485 communication address and baud rate.
 Current Transmission : Settings of 4mA corresponding value and 20mA
corresponding value of 4-20mA output.

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4 . 3 . 6 A l a r m S e t t i n g :
 pH High Alarm : When the measured value is greater than the high reported pull
value, the high reported relay pull, when the measured value is
less than the high reported off value, the high news relay
disconnect.
 pH Low Alarm : When the measured value is less than the low pull-in value, the
lower newspaper relay pull, when the measured value is greater
than the low reported off value, the low alarm relay off.
 ORP High Alarm : When the measured value is greater than the high reported pull
value, the high reported relay pull, when the measured value is
less than the high reported off value, the high reported relay
disconnect.
 ORP Low Alarm : When the measured value is less than the low pull-in value, the
low relay relays, when the measured value is greater than the
low reported off value, the low alarm relay off.
4 . 3 . 7 I n f o r m a t i o n I n q u i r y :
 Information Inquiry : Inquire the current hard software version,
high traceability.

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C h a p t e r 5 : C o m m u n i c a t i o n
The instrument is provided with standard RS485 series communication interface, in
accordance with international universal standard MODBUS-RTU communication protocol,
supporting No.03 register reading and holding command. MODBUS standard format (No.03
register reading and holding command)
Command Format:
Definition Address Function
Code
Register
Address
Number of
Data CRC Check
Data ADDR 0x03 MNCRC 16
Number of Bytes 11222
Return Format:
Definition Address Function
Code
Register
Address
Number of
Data CRC Check
Data ADDR 0x03 2*N Data CRC 16
Number of Bytes 1112*N 2
Register Address Description :
Address Data Type Data Size Function
Code Description Access Authority
0x0000 Unsigned
Long 4 Bytes 0x03 pH Value (default two decimal places) Read Only
0x0002 Short 2 Bytes 0x03 Temperature
(default 1 decimal) Read Only
0x0003 Unsigned
Long 4 Bytes 0x03 ORP Value (signed integer) Read Only