EYC DPME01 User manual

Operation Manual
eYc DPME01
Industrial Grade Online pH / ORP Controller
eYc DPME01

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eYc DPME01 Industrial Grade Online pH / ORP Controller
Controller
Contens
ⅠOverview...................................................................................................P. 2
ⅡCombination and installation............................................................... P. 3
2.1 Main engine fixed（Panel mounting）............................................ P. 3
2.2 Panel mounting reference drawing............................................... P. 3
2.3 Sensor and sensor protection tube............................................... P. 4
III Panel introduction.................................................................................. P. 6
3.1 Panel introduction......................................................................... P. 6
3.2 Key description............................................................................... P. 6
3.3 Display description........................................................................ P. 6
IⅤ Menu introduction.............................................................................. P. 7
4.1 System setting................................................................................ P. 8
4.2 Sensor setting................................................................................. P. 9
4.3 Output setting.............................................................................. P. 1 1
4.4 Factory reset................................................................................. P. 14
V Default factory setting......................................................................... P. 15
Maintenance....................................................................................... P. 1 5

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eYc DPME01 Industrial Grade Online pH / ORP Controller
Controller
Initial password：0000
Note：Please read the manual carefully before use.
Thank you for purchasing our products. In order to continuously improve the quality of
the controller and improve its functions, our company reserves the right to modify the
content and icon display at any time. The actual display may be different from the
operation manual, so the actual situation shall be subject to the machine. When using
the controller, please follow the function and installation method described in the
operation manual. Our company will not be responsible for any indirect or indirect loss
or damage caused by improper use of the product by any person or entity. If you have
any problems or find any omissions or errors in the operation manual, please contact
our sales.
Safety and matters needing attention
1. Please read this manual carefully before installation to avoid safety problems and
instrument damage caused by wrong records.
2. Please avoid high temperature, high humidity and corrosive environment to install
the controller, and avoid direct sunlight exposure.
3. Special wires shall be used for the transmission line of electrode signal. It is
suggested to use the wires provided by our company instead of general wires.
4. When using the power supply, it should avoid interference from the power supply,
especially when using the three-phase power supply, the ground wire should be used
correctly (if there is a power surge phenomenon occurs, the controller's power supply
and control devices such as：dosing machine, mixer, etc. can be separated, that is, the
transmitter uses a separate power supply.)
5. The controller output contacts carry alarm and control functions. For safety and
protection reasons, please be sure to connect external relays with sufficient current
value to protect the safety of the instrument.
I. Overview
This type of pH/ORP controller is a new controller. This meter has a high degree of
intelligence and flexibility. It can measure pH/ORP value and temperature at the same
time. It is widely used in urban sewage treatment plants, water supply and other
industries and can continuously measured the pH/ORP value of solution.

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eYc DPME01 Industrial Grade Online pH / ORP Controller
Controller
Basic function
1. Language diversity. Factory standard is Chinese interface and can switch to English
interface.
2. Temperature compensation diversity. Pt1000, NTC10K and manual temperature
compensation are available in three temperature compensation modes.
3. Two 4 ... 20 mA outputs, corresponding to pH/ORP value and temperature, using
isolation technology, strong anti-interference ability.
4. The high and low points of the two sets of relays can be switched freely, and the
hysteresis can be adjusted freely to avoid relays on and off frequently.
5. Password management function is to prevent the misoperation by non-professional
personnel.
6. Menu prompt function , greatly facilitates the user's operation.
II. Combination and installation
2.1 Main engine fixed (Panel mounting)
Note：For panel installation, please reserve a square hole of 92.5 mm×92.5 mm on the
panel of the power distribution box. The transmitter is directly inserted from the panel of
the power distribution box. The fixator attached to the transmitter is sletted in from the
rear and stuck into the fixing slot.
2.2 Panel mounting reference drawing

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eYc DPME01 Industrial Grade Online pH / ORP Controller
Controller
2.3 Sensor and sensor protection tube combination
2.3.1 Sensor cable line and wiring method
Configuration of coaxial cable：
Center line：+ sensor wire line：- sensor reference line
The correct configuration diagram like up, the outer peel of the black rubber mandrel
guide be stripped off. Conductive rubber or aluminum foil sensor signal line of the central
axis and the cable must be stripped off. The cable extends to the middle of the host,
can’t have any contact, directly to the central axis of the cable to the GLASS contact is
connected to the back of the host, the cable connected to the Ref contact.
Note：If the standard cable can’t meet the requirements, shall not extend the cable,
please contact the supplier to provide a dedicated cable, otherwise the instrument
produces adverse consequences to bear. Recommended site not more than 30m to
extend the cable, or need to increase the signal amplifier.
Installation form

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eYc DPME01 Industrial Grade Online pH / ORP Controller
Controller
Pipeline installation considerations
Note：
1. The sensor should be installed in the bypass of the main pipeline, the front end
should install the valve, control the flow rate, the flow rate should be as small as
possible, generally as long as the outlet has a stable aqueous solution dripping out
can be. The sensor should be installed vertically and penetrate into the active water
body, and the outlet should be higher than the inlet to ensure that the electrode is
completely immersed in the solution.
2. The sensor should be calibrated before installation.
3. The measuring signal is a weak electrical signal, its acquisition cable should be
independent wiring, and the power line, control line connected to the same set of
cable connectors or terminal panels, so as not to interfere with or penetrate the
measuring unit.
Plastic shell sensor sink type installation
1. Sensor back-end threads wrapped with
appropriate raw material tape (to prevent
leakage).
2. Pass the sensor cable through the sensor
protection tube, and tighten the thread of the
sensor back-end to the thread of the inner shell.
15 cm cable is reserved at the tail of the
protective tube. The cable passes through the
splice-1. Lock it with the PG9 joint, and peel the
cable with the reference sensor stripping
method.
3. After the sensor extension line is stripped, it
passes through the splice-2 and locks, and
extends to the main machine.
4. For reserved wires, the REF to the REF, the
GLASS to the Glass, fixed on the M4 screws, and
then fixed the bracket to the pool, fixed well to
complete the assembly.

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eYc DPME01 Industrial Grade Online pH / ORP Controller
Controller
III. Panel introduction
3.1 Panel introduction
3.2 Key description
To prevent improper operation by non-users, enable password protection when entering
parameter settings and corrections. Each function description is as follows：
：Trigger the setting interface in the measurement mode, return to the previous
menu under the setting interface.
：Switching and numerical adjustment of menus under the setting interface.
：Switching and numerical adjustment of menus under the setting interface.
：View historical alarm information in measurement mode, enter the next level
menu under the setting interface, and the shortcut key of the alarm information
interface.
Enter：View the basic parameters in measurement mode, and the setting interface is used
to enter the next level menu, the shortcut key of the system information interface.
3.3 Display description
In the display mode of system measurement, it will be shown as follows：
Indicator light description：

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eYc DPME01 Industrial Grade Online pH / ORP Controller
Controller
R1：Action indicator of relay 1, the high displays the red light, the low displays the green
light.
R2：Action indicator of relay 2, the high displays the red light, the low displays the green
light.
The figure above shows the display interface of system information and alarm
information respectively.
System information：All setting parameters of the meter are displayed in the system
information. Press Enter to enter the system information interface.
Alarm information：Up to 60 relay alarm messages can be stored. Press the button to
enter the alarm information interface.
IV. Menu introduction
The instrument is divided into four first-level menus according to the function, and each
level menu includes two or even two sub-menus. Each menu is numbered for easy
viewing and setting of meter parameters. Moreover, the secondary menu will display the
setting parameters of the lower menu instrument according to the function at the upper
right of the screen, and the user can know the instrument parameters without entering
the lower menu.
The main menu includes four first-level menus：
1. System setting
The system setting parameters of the instrument include language, password, date,
backlight, etc.
2. Sensor setting
Includes display mode, calibration, digital filtering, temperature mode, temperature
regulation, and compensation.
3. Output setting
Including relay 1, relay 2 and two 4 ... 20 mA parameter settings.
4. Factory reset
Including setting recovery and alarm information recovery.

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eYc DPME01 Industrial Grade Online pH / ORP Controller
Controller
Menu prompt function：
Enter the secondary menu and the parameter settings for the next menu will be displayed
at the top right of the screen.
For example, enter the backlight of the system setup menu, the backlight parameter is set
to 30 seconds.
4.1 System setting
Menu 1.1 Language
This instrument supports Chinese and English two
languages, two languages can switch freely.
For example：Select simplified Chinese and press
Enter key to confirm, the whole display interface of
the instrument will be changed into simplified Chinese.
Note：In order to prevent the user from misoperation, after the customer selects the
parameter and presses the Enter key, there will be four prompts‘ESC’, ‘OK’, ‘NO’
and‘ENT’at the bottom of the screen, corresponding to the four buttons of the meter.
The user needs to reconfirm whether the parameter is correctly selected. If yes, press the
button that is‘OK’, otherwise press is‘NO’
Menu 1.2 Password
The default password of this instrument is 0000.
You can change the password according to your
own needs. After changing the password, the user
will enter the new password after entering the
setup menu next time.
Menu 1.3.1 Date format
The meter supports the selection of three date
formats, and you can select the appropriate date
format according to your needs.

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eYc DPME01 Industrial Grade Online pH / ORP Controller
Controller
Menu 1.3.2 Date setting
Enter the date setting menu to set the year, month,
day, hour, minute, and so on. After successful setting,
the system time of the meter will automatically
change to the set time.
Menu 1.4 Backlight
This instrument supports four kinds of backlight time,
the user can set the corresponding backlight time
according to the demand. The screen will darken
when the meter reaches backlight time.
4.2 Sensor setting
Menu 2.1 Display mode
This instrument supports 7 display modes, each
display mode represents different measurement
accuracy and measurement unit selection.
Remarks：
14.00pH：Need to use pH sensor, the measuring range is 0.00 ... 14.00 pH.
14.00pH-Ti：Need to use pH sensor(TI), the measuring range is 0.00 ... 14.00 pH.
±2000 mV-ORP：Need to use ORP sensor, the measuring range is -2000 ... +2000 mv.
14.0pH：Need to use PH sensor, the measure range is 0.0 ... 14.0 pH.
14.0pH-Ti：Need to use pH sensor(TI), the measuring range is 0.0 ... 14.0 pH.
14pH：Need to use pH sensor, the measuring range is 0 ... 14 pH.
14pH-Ti：Need to use pH sensor(TI), the measuring range is 0 ... 14 pH.
Menu 2.2 Coefficient settings
2.2.1 Calibration 2-point
2.2.2 Calibration 3-point
Because the principle of two-point calibration is the same as that of three-point
calibration, here we take two-point calibration as an example.

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eYc DPME01 Industrial Grade Online pH / ORP Controller
Controller
2.2.1 Cal. 2 Point
Two-point correction includes low-point correction
and high-point correction：The default setting of
low-point calibration is 4.00 pH. First, clean the
probe with clean water and dry it. Insert the probe
into the calibration solution of pH 4.00, observe the
mV value in the calibration page, wait for the mV value to stabilize at 177.0 mV (Deviation
less than 50 MV) and press
Enter to determine. After successful calibration, return to the
two-point calibration interface. If the calibration is unsuccessful, it will stay at the
low-point calibration interface.
Note：Three-point calibration refers to two-point calibration. The calibration point of this
instrument can be set freely, but the value of the calibration fluid and the calibration
point should be consistent. Calibration should wait for the mV value to stabilize before
pressing
Enter key to determine.
Menu 2.3 Digital filtering
The measured value of the meter is filtered by
means of averaging, and three digital filtering
methods are supported.
Low point：Average every 5 seconds
Midpoint：Average every 10 seconds
High point：Average every 20 seconds
Note：The rate of change of the low point is higher than the rate of change of the high
point.
Menu 2.4 Temperature mode
The meter supports two types of temperature
compensation, Pt1000 and NTC10K. It can freely
set two temperature display modes：Celsius and
Fahrenheit.
Note 2.4.1 PTC°C：Pt1000 temperature probe, Celsius display mode.
2.4.2 NTC°C：NTC10K temperature probe, Celsius display mode.
2.4.3 MTC°C：Manual mode, Celsius display mode.
2.4.4 PTF°F：Pt1000 temperature probe, Fahrenheit display mode.
2.4.5 PTF°F：NTC10K temperature probe, Fahrenheit display mode.
2.4.6 MTF°F：manual mode, Fahrenheit display mode.

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eYc DPME01 Industrial Grade Online pH / ORP Controller
Controller
Menu 2.5 Temperature settings
The temperature adjustment is divided into two parts,
the upper part is the temperature adjustment value,
and the lower part is the adjusted temperature display
value. Press
Enter key, the temperature display of the
meter will be the adjusted value.
Menu 2.6 Compensation
Users can set the temperature compensation
parameters freely according to the actual situation.
After confirming by press
Enter the measured values
will change accordingly according to the temperature
compensation parameters.
Note：The temperature compensation reference temperature of the instrument is fixed at
25°C, and the calculation formula is：
Ct = C25{1+α(T-25)}
C25 is DO value at 25°C.
α is temperature compensation coefficient.
T is temperature of the solution to be tested.
Ct is temperature of T°C.
4.3 Output setting
The output settings mainly include relay 1, relay 2 and two 4 ... 20 mA settings, of which
two 4 ... 20 mA correspond to the measured values of temperature. The following takes
the relay 1 and 4 ... 20 mA of dissolved oxygen as an example.
Menu 3.1 Relay 1
Relay 1 contains 3 sub-menus.
3.1.1 Relay 1 mode
3.1.2 Relay 1 trigger value
3.1.3 Relay 1 hysteresis value
Menu 3.1.1 Relay 1 mode
The relay is divided into three modes：off, high and low.
Users can set the corresponding relay mode according
to their needs, press
Enter to confirm.

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eYc DPME01 Industrial Grade Online pH / ORP Controller
Controller
Menu 3.1.2 Relay 1 trigger value
The user can freely set the trigger value within the
range allowed by the meter and press
Enter to
confirm.
Menu 3.1.3 Relay 1 hysteresis value
The user can freely set the hysteresis value within the
range allowed by the meter and press
Enter to
confirm.
Note：
Greater than (or less than) the alarm trigger value is pulled in. Below (or greater than) the
hysteresis value is released.
The relay action diagram is as follows：
High point trigger：
Relay 1 mode= high point
Relay 1 trigger=5.00
Relay 1 hysteresis=1.00
At this time, the working state is：When
the display value is higher than 5.00, the
relay sucks in, and when the display
value is lower than 4.00, the relay is
disconnected. In high point mode,
disconnection value = trigger value -
hysteresis value
Low point trigger：
Relay 1 mode= low point
Relay 1 trigger=2.00
Relay 1 hysteresis=1.00
At this time, the working state is：When
the display value is less than 2.00, the
relay will suck in, and when the display
value is higher than 3.00, the relay will
be disconnected. In low-point mode,
disconnection value = trigger value +
hysteresis value

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eYc DPME01 Industrial Grade Online pH / ORP Controller
Controller
Menu 3.2 Relay 2
The setting of relay 2 is the same as the setting principle of relay 1, please refer to the
setting of relay 1.
Menu 3.3 Electric current
This menu is divided into four sub-menus：
3.3.1 Electric current 1 ... 4 mA setting
3.3.2 Electric current 1 ... 20 mA setting
3.3.3 Electric current 1 ... 4 mA correction
3.3.4 Electric current 1 ... 20 mA correction
Since the setting and principle of correction of 4 mA and 20 mA of current are same, so
4 mA setting and correction are taken as an example here.
Menu 3.3.1 Electric current 1 ... 4 mA setting
The user can freely set the current 1 ... 4 mA setting value.
After pressing
Enter , the system will automatically save the
settings.
Menu 3.3.2 Electric current 1 ... 20 mA setting
The user can freely set the current 1 ... 20 mA setting value.
After pressing
Enter , the system will automatically save the
settings.
Note：The dissolved oxygen value and current value set in 4 ... 20 mA correspond to each
other, and the calculation formula is：
outMa =（20.00-4.00）/（endMa - startMa）*（hold- startMa）+ 4.00
outMa is the value of output current
startMa：pH/ORP value set by 4 mA
endMa：pH/ORP value set by 20 mA
Hold is present measured value
For example, 4 mA is set to 0.00 pH, 20 mA is set to 14.00pH, and when the pH value is
7.00 PPM, the current output is 12.00 mA.

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eYc DPME01 Industrial Grade Online pH / ORP Controller
Controller
Menu 3.3.3 Electric current 1 ... 4 mA correction
After entering the calibration interface, the current output
value will be displayed on the screen. The ammeter will
measure the output current value of the current 1 and
adjust the current value on the screen to be the same as
the current value measured by the ammeter.
Menu 3.3.3 Electric current 1 ... 20 mA correction
The setting principle of 20 mA is the same as that of 4 mA. Please refer to 4 mA for
correction.
Menu 3.4 Electric current2
The setting principle of current 2 is the same as that of current 1. Please refer to
current 1.
4.4 Factory reset
Menu 4.1 Setting recovery
Press Enter to confirm, all the parameter settings of the
meter will be restored to the default value.
Menu 4.2 Alarm recovery
After pressing
Enter key, the alarm information of the meter will be cleared.

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eYc DPME01 Industrial Grade Online pH / ORP Controller
Controller
V. Default factory setting
Menu
Range setting
Factory default
Sensor type
pH / ORP / Ti
pH
Digital filtering
Low / Middle / High point
Low point
Calibration
2-point / 3-point
2-point
Temperature
compensation
Auto / Manual Manual
Manual temperature
compensation
0.0 ... 100.0°C 25°C
High alert trigger value
pH：0.00 ... 14.00 pH
pH：12.00 pH
ORP：- 1999 ... + 1999 mV
ORP：+ 900 mV
High alert hysteresis value
pH：0.00 ... 14.00 pH
pH：1.00 pH
ORP：0 ... + 1999 mV
ORP：100 mV
Low alert trigger value
pH：0.00 ... 14.00 pH
pH：2.00 pH
ORP：- 1999 ... + 1999 mV
ORP：- 900 mV
Low alert hysteresis value
pH：0.00 ... 14.00 pH
pH：1.00 pH
ORP：0 ... + 1999 mV
ORP：100 mV
4 mA corresponding value
pH：0.00 ... 14.00 pH
pH：0.00 pH
ORP：- 1999 ... + 1999 mV
ORP：- 1999 mV
20 mA corresponding value
pH：0.00 ... 14.00 pH
pH：14.00 pH
ORP：- 1999 ... + 1999 mV
ORP：+ 1999 mV
User password
0 ... 9999
0000(General password：6666)
Backlight
30 sec ... Always
30 sec
Alarm sound
Open / Closed
Open
Maintenance
Our controller does not need any maintenance under normal conditions, but the sensor
needs regular cleaning and calibration to ensure accurate and stable measurements and
to maintain the normal operation of the system.
The cleaning cycle of the sensor depends on the degree of contamination of the tested
water sample. Generally speaking, it is better to have regular cleaning and maintenance
once a week. The following table is an introduction to the cleaning fluids needed for
different types of pollution. It provides operators with a reference for cleaning and
maintenance.

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eYc DPME01 Industrial Grade Online pH / ORP Controller
Controller
Types of pollution
Cleaning method
Contamination of sensor diaphragm
caused by protein in test solution
The sensor was immersed in Pepsin / HCL
solution for several hours.
Sulfide contamination
(Black of sensor diaphragm)
The sensor was immersed in Thiourea / HCL
solution until the diaphragm became white.
Pollution of grease or organic matter
The sensor was briefly cleaned with acetone or
ethanol for several seconds.
General pollution
Clean the sensor with 0.1 M NaOH or 0.1 M HCL
for several minutes.
When using the above method to clean the sensor, please rinse them thoroughly with
clean water, and put the electrodes into 3M OL KCL solution for about 15 minutes, then
do the sensor calibration again.
During the sensor cleaning process, do not rub the sensor sensing glass head, or
mechanical cleaning electrode, otherwise it will produce electrostatic interference,
affecting the reaction.
Platinum sensor can be cleaned with fine cloth stained with water to wipe the platinum
ring lightly.
Note：The sensor cleaning cycle must depend on the degree of contamination of the
water quality, it is generally recommended to clean and correct at least once a week, or
according to the sensor operating instructions and the original recommended cleaning
sensor (Probe).

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eYc DPME01 Industrial Grade Online pH / ORP Controller
Controller
Tel.: [phone] ,
Web : www.eyc-tech.com
e-mail : [e-mail]
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Temperature and Humidity / Dew Point / Air Velocity / Flow / Pressure
Measuring Specialist