ICON ProCon D400 Series User manual

D400 Series
pH/ORP Digital Analyzer Controller
Operating Manual

D400 Series Operating Manual
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Contents
Preface .........................................................................................................................................................................................................................................3
Features...........................................................................................................................................................................................................................................3
Technical Specications ...................................................................................................................................................................................................... 4
Typical Application.................................................................................................................................................................................................................. 4
Instrument Connection........................................................................................................................................................................................................5
Dimension......................................................................................................................................................................................................................................5
Instrument Installation .........................................................................................................................................................................................................6
Keypad Descriptions...............................................................................................................................................................................................................7
Display Descriptions ...............................................................................................................................................................................................................8
Menu Structure ..........................................................................................................................................................................................................................9
Calibration....................................................................................................................................................................................................................................10
pH Buffer Reading vs Temperature............................................................................................................................................................................12
Field Calibration .......................................................................................................................................................................................................................12
Measurement Settings (Quick Start).........................................................................................................................................................................13
SimplCal® Calibration (Quick Start) ............................................................................................................................................................................14
Field Calibration (Quick Start) ........................................................................................................................................................................................ 15
Calibration Adjusment (Quick Start) .........................................................................................................................................................................16
Alarm / Relay Settings (Quick Start)...........................................................................................................................................................................17
Output Settings (Quick Start).........................................................................................................................................................................................18
Measurement Settings (Quick Start).........................................................................................................................................................................19
MODBUS RTU General Information..........................................................................................................................................................................20
MODBUS RTU Transmission Mode.............................................................................................................................................................................21
MODBUS RTU CRC Check ...............................................................................................................................................................................................22
Implementation of MODBUS RTU in Instrument .......................................................................................................................................... 22
Data Format...............................................................................................................................................................................................................................24
Read Instruction Mode ......................................................................................................................................................................................................26
Daily Maintenance ................................................................................................................................................................................................................26
Troubleshooting......................................................................................................................................................................................................................27
Warranty.......................................................................................................................................................................................................................................27

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Preface
Please read this manual carefully before use.
When receiving the instrument, please open the package carefully, check whether the instrument and accessories are damaged by trans-
portation and whether the accessories are complete. If any abnormalities are found, please contact our after-sales service department or
regional customer service center, and keep the package for return processing.
This instrument is an analytical measurement and control instrument with highly precision.Only skilled,trained or authorized person should
carry out installation, setup and operation of the instrument.Ensure that the power cable is physically separated from the power supply
when connection or repair. Once the safety problem occurs, make sure that the power to the instrument is off and disconnected.
For example,
1. Apparent damage to the analyzer
2. The analyzer does not work properly or provides specied measurements
3. The analyzer has been stored for a long time in an environment where the temperature exceeds 70°C
The analyzer must be installed by licensed professionals in accordance with relevant local specications, and instructions are included in
the operation manual. Comply with the technical specications and input requirements of the controller.
Features
The instrument is equipped with different types of pH or ORP sensors. Widely used in power plants, petrochemical industry, metallurgical
electronics, mining, paper industry, biological fermentation engineering, medicine, food and beverage, environmental protection water
treatment, aquaculture, modern agricultural planting and other industries. The pH (acidity and alkalinity) value, ORP (redox potential) value
and temperature value of water solution were continuously monitored and controlled.
Large color LCD display
Intelligent menu operation
Multiple automatic calibration
Double high resistance measurement mode, stable and reliable
Manual and automatic temperature compensation
Three relay control switches
High & low alarm and hysteresis control
4-20mA (2-wire), 4-20mA (4-wire direct to controller), or 4-20mA + RS485
Multi parameter display simultaneously shows – pH, Temp, mV, etc.
Password protection

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Technical Specifications
Measuring Range pH: -2 – 16pH |ORP: -2000 – +2000mV
Unit pH |mV
Resolution pH: 0.001pH |ORP: 1mV
Basic Error pH: 0.001pH |ORP: 1mV
Temperature 14 – 302°F | -10 – 150°C (Sensor Selection Dependant)
Temperature Resolution 0.18°F | 0.1°C
Temperature Accuracy ±0.54°F | ±0.3°C
Temp. Compensation 32 – 302°F | -10 – 150°C
Temp. Compensation Manual or Automatic
Stability pH: 0.01pH/24h |ORP: 1mV/24h
Output Two 4–20mA |20–4mA |0–20mA
Communication RS485 MODBUS RTU
Relay Control Contact 5A 240VAC |5A – 28VDC
Power Supply 85 – 265VAC |9 – 36VDC | Power Consumption 3W
Working Temperature 14 – 140°F | -10 – 60°C
Relative Humidity ≤ 90%
Waterproof Rating IP65
Weight 0.5kg
Dimensions 98 × 98 × 130mm
Installation Opening Size 93 X 93mm
Installation methods Panel |Pipe |Wall
Typical Application

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Instrument Connection
N/C NO 1
N/C COM 1
Temp NC 1
Temp NO 2
Input COM 2
Ref NC 2
N/C pH/ORP
N/C
N/C Pow DC+
(9–36V)
Cur 1+ Pow DC-
Com - Pow PE
Cur 2+
RS-485 B
RS-485 A
Pow ACL
(85–265V)
Pow AC N
Pow PE
Terminal Function Terminal Function
N/C No Connection NO 1 High set relay working position
N/C No Connection COM 1 Alarm relay common
Temp Temperature Sensor NC 1 High set relay resting position
Temp Temperature Sensor NO 2 Low set relay working position
Input Measurement COM 2 Alarm relay common
Ref Reference NC 2 Low set relay resting position
N/C No Connection
N/C No Connection Pow DC + (9 – 36V) DC power + (9 – 36V)
N/C No Connection Pow DC - DC power -
Cur 1 + Current output 1+ Pow PE Earth wire
Com - Current output common
Cur 2 + Current output 2+ Pow ACL (85 – 265V) Live wire
RS485 B Communication Terminal Pow AC N Neutral wire
RS485 A Communication Terminal Pow PE Earth wire
Dimension

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Instrument Installation

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Keypad Descriptions
Keypad Operation Tips:
Short Press: press the button and release immediately. if not specied below,
means short press.
Long Press: press the button for 3 seconds and then release it.
Press and hold: hold the button for a while and press the button until the right data is displayed then release the button.

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Display Descriptions
Check all pipe connections and electrical connections before use. The instrument will display as shown in the gure below after the power
is turned on.
pH / ORP
4.01 pH
25.0 °C
C1 14.51 mA
SP1 SP2
Main measurment + Unit
Relay 1
[blue is off and red is on]
Instrument type
Temp. + Unit
Automatic temp. comp.
Relay 2 Current 1
Current 2
Sensor Communication
Warning
pH / ORP
235mV
25.0 °C
C1 14.51 mA
SP1 SP2
Measurement Mode
Configure
Calibration
Set Points
Output
System
pH / ORP
Programming Mode
pH / ORP
Calibration Mode

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Menu Structure
Press [MENU] key to enter programming mode:
If the monitor prompts you to enter the calibration security password, press the or key to set the calibration security password, and
then press the [ENT] key to conrm the calibration security password. No initial password here, please enter directly by pressing the
[ENT] key.
Item Display Selection Sub Menu
Congure
Sensor
Type pH
ORP
Unit pH
mV
Temperature
Temperature Sensor
NTC2.252 kΩ
NTC10 kΩ
Pt100
Pt1000 (Default)
Temperature Offset 0.0000
Temperature Input Automatic
Manual
Temperature Unit °C
°F (Default)
Calibration
Standard
Solution
Calibration
USA : 7.00,4.01,10.01 [ ] 7.00 [ ] 4.01 [ ] 10.01
NIST : 6.86,4.01,9.18 [ ] 6.86 [ ] 4.01 [ ] 9.18
ORP Standard Solution 235mV (Default)
Field Calibration
Field Calibration Enter Value
Offset Adjustment Enter Value
Slope Adjustment Enter Value
Calibration
Adjustment
Offset Adjustment 1 Offset 2 Adjustment
Slope Adjustment 1 Slope 2 Adjustment
Set Points
Relay 1
Status ON
OFF
High/Low Setpoint
High Alarm
Low Alarm
Clean
Limit Value 0.00 (Default)
Hysteresis 00.000
Relay 2
Status ON
OFF
High/Low Setpoint
High Alarm
Low Alarm
Clean
Limit Value 0.00 (Default)
Hysteresis 00.000

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Item Display Selection Sub Menu
Output
Current 1
Channel Main
Temperature
Output Option
4-20mA (Default)
0-20mA
20-4mA
Upper Limit 00.00
Lower Limit 00.00
Current 2
Channel Main
Temperature
Output Option
4-20mA (Default)
0-20mA
20-4mA
Upper Limit 00.00
Lower Limit 00.00
Output RS485
Baud Rate
4800BPS
9600BPS (Default)
19200BPS
Parity Check
None
Odd
Even
Stop Bit 1 Bit
2 BIT
Network Node 000001
System
Language English
Date/Time Year-Month-Day
Hour-Minute-Second
Display
Display Speed
Low
Standard (Default)
Medium
High
Backlight Power Saving [Enter Value]
Long Bright
Information
Soft Version 19-1.0
Password Settings 0000
Serial Number
Factory Default No Keep User Settings
Yes Reset back to Factory Default
Calibration
Press [MENU] to enter the calibration menu and select
Output
Standard Calibration
USA:7.00,4.01,10.01 Automatic Note: calibrate 7.00 rst
USA:7.00,4.01,10.01 Automatic Note: calibrate 6.86 rst
USA:7.00,4.01,10.01 235mV(Default)
Field Calibration
USA:7.00,4.01,10.01 Enter Value
Enter Value
Slope Adjustment Enter Value

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Calibration of Standard Solution
Select the Standard Solution Calibration,
USA: 7.00, 4.01, 10.01
NIST: 6.86, 4.01, 9.18.
After the selection is completed, press the [ENT] button to enter the calibration mode
Submerse sensor into individual reference solutions different for 10 seconds min.
Note: begin with 7.00 USA - 6.86 NIST reference solution.
Press [ENT] button to calibrate.
The calibrated value will appear in box Move to next reference liquid and follow same procedure If the instrument has been calibrated, the
calibration screen will display DONE calibrated state. If recalibration is needed, press the [ent] key in this state to enter recalibration.
If the monitor prompts you to enter the calibration password, press or key to set the calibration safety password, then press [ENT] to
conrm the calibration safety password.
Done
PH Calibration: After entering the calibration mode, the instrument displays as shown above. The instrument automatically identies
the standard liquid, rst calibrates the midpoint (example 7.00pH), then calibrates 4.01pH or 10.01pH. The corresponding mV value will be
displayed on the left side of the screen. After the calibration is completed, the offset and slope will be displayed on the right side of the
screen.The pH value of buffer solution was measured at 25°C.
To calibrate the instrument using an automatic identication buffer, you need a standard pH buffer that matches any of these values.
Before using automatic calibration, please select the correct buffer table (see “Buffer Table”).
Field Calibration — Select on-site calibration methods: [Linear calibration] , [Offset adjustment] , [linear adjustment] .
If only two points of calibration are needed, after two points of calibration, press the
[MENU] button to exit directly.
During the calibration process, Error prompt appears on the screen when the reference liquid is incorrect or sensor can not be calibrated.
(Replacement Sensor Required) The slope of glass electrode (> 0.90) is qualied.

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pH Buffer Reading vs Temperature
Temp(°C) pH 4.01 pH 6.86 pH 9.18 pH 4.00 pH 7.00 pH 10.01
04.01 6.98 9.47 4.01 7.12 10.32
54.01 6.95 9.38 4.00 7.09 10.25
10 4.00 6.92 9.32 4.00 7.06 10.18
15 4.00 6.90 9.27 4.00 7.04 10.12
20 4.00 6.88 9.22 4.00 7.02 10.06
25 4.01 6.86 9.18 4.00 7.00 10.01
30 4.01 6.85 9.14 4.01 6.99 9.97
35 4.02 6.84 9.10 4.02 6.98 9.93
40 4.03 6.84 9.07 4.03 6.97 9.89
45 4.04 6.83 9.04 4.04 6.97 9.86
50 4.06 6.83 9.01 4.06 6.97 9.83
55 4.08 6.83 8.99 4.07 6.97 9.91
60 4.10 6.84 8.96 4.09 6.98 9.97
70 4.12 6.85 8.92 4.12 6.99 9.76
80 4.16 6.86 8.89 4.16 7.00 9.74
90 4.01 6.88 8.85 4.20 7.02 9.73
ORP Calibration: Press the [MENU] button to enter the calibration mode, select ORP standard liquid calibration, and input the known
standard liquid value (Default 235mV).
Press the [MENU] button to return to the measurement screen and press the [CAL] button to enter the standard solution
calibration mode. If there is no need to modify the value, this setting is omitted.
Press the [CAL] button to enter the calibration mode. After entering the calibration mode, the instrument will be displayed as the upper
right image, and the corresponding mV value will be displayed on the left side of the screen.
After the calibration is completed, the slope will be displayed on the right side of the screen. If the instruemnt has been calibrated, press the
[CAL] button to inspect the calibration state, and then press the [ENT] button to enter the re-calibration.
Field Calibration

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Measurement Settings (Quick Start)

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SimplCal®Calibration (Quick Start)

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Field Calibration (Quick Start)

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Calibration Adjusment (Quick Start)

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Alarm / Relay Settings (Quick Start)

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Output Settings (Quick Start)

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Measurement Settings (Quick Start)

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MODBUS RTU General Information
Overview
The hardware version number of this document is V2.0; the software version number is V5.9 and above. This document describes the
MODBUS RTU interface in details and the target object is a software programmer.
MODBUS Command Structure
Data format description in this document;
Binary display, sufx B, for example: 10001B
- decimal display, without any prex or sufx, for example: 256
Hexadecimal display, prex 0x, for example: 0x2A
ASCII character or ASCII string display, for example: “YL0114010022”
Command Structure
The MODBUS application protocol denes the Simple Protocol Data Unit (PDU), which is independent of the underlying communication
layer.
Figure 1: MODBUS Protocol Data Unit
MODBUS protocol mapping on a specic bus or network introduces additional elds of protocol data units. The client that initiates the
MODBUS exchange creates the MODBUS PDU, and then adds the domain to establish the correct communication PDU.
Figure2: MODBUS architecture for serial communication
On the MODBUS serial line, the address domain contains only the slave instrument address. Tips: The device address range is 1...247. Set
the device address of the slave in the address eld of the request frame sent by the host. When the slave instrument responds, it places its
instrument address in the address area of the response frame so that the master station knows which slave is responding. Function codes
indicate the type of operation performed by the server. CRC domain is the result of the “ redundancy check” calculation, which is executed
according to the information content.