ICON ProCon D700 Series User manual

D700 |D720 Series
pH/ORP Digital Analyzer Controller
Operating Manual

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Contents
Preface .........................................................................................................................................................................................................................................3
Features...........................................................................................................................................................................................................................................3
Technical Specications ...................................................................................................................................................................................................... 4
Dimension..................................................................................................................................................................................................................................... 4
Instrument Connection........................................................................................................................................................................................................5
Instrument Installation .........................................................................................................................................................................................................6
Typical Application...................................................................................................................................................................................................................6
Keypad Descriptions...............................................................................................................................................................................................................7
Display Descriptions ...............................................................................................................................................................................................................8
Menu Structure ..........................................................................................................................................................................................................................9
Calibration.....................................................................................................................................................................................................................................11
pH Buffer Reading vs Temperature............................................................................................................................................................................12
Field Calibration.......................................................................................................................................................................................................................12
Data Logging Graphic Trending (Trend Chart) .................................................................................................................................................. 13
Measurement Settings........................................................................................................................................................................................................ 15
SimplCal® Calibration ...........................................................................................................................................................................................................16
Field Calibration.......................................................................................................................................................................................................................17
Calibration Adjusment ........................................................................................................................................................................................................18
Alarm / Relay Settings..........................................................................................................................................................................................................19
Output Settings ......................................................................................................................................................................................................................20
MODBUS RTU General Information ...........................................................................................................................................................................21
MODBUS RTU Transmission Mode ............................................................................................................................................................................22
MODBUS RTU CRC Check ............................................................................................................................................................................................... 23
Implementation of MODBUS RTU in Instrument .......................................................................................................................................... 23
Data Format............................................................................................................................................................................................................................... 25
Read Instruction Mode ...................................................................................................................................................................................................... 27
Daily Maintenance ................................................................................................................................................................................................................27
Troubleshooting......................................................................................................................................................................................................................28
Warranty.......................................................................................................................................................................................................................................28

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Preface
Please read this manual carefully before use.
When receiving the instrument, please open the package carefully, check to ensure the instrument and accessories have not been
damaged during transportation. If any issues are found, please contact our after-sales service department or regional customer service
center. Ensure item is returned in the original packaging.
Only properly skilled authorized personnel should carry out installation, setup and operation. Ensure that the power cable is physically
separated from the power supply during the initial wiring connection or repair.
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
Large color LCD display
Intelligent menu operation
Data Recording / Curve display / Data upload function
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 & RS485 Multiple output modes
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 1.5Kg
Dimensions 235 × 185 × 120mm
Installation methods Wall
Other functions Data record & Curve display
Dimension

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Instrument Connection
EC1, EC2, EC3, EC4 Electrical conductivity/resistivity wiring
T+T Temperature connection
INPUT pH/ORP/lon measure
REF pH/ORP/lon reference
S+S Membrane dissolved oxygen, FCL
CE RE WE Constant voltage Residual Chlorine/chlorine Dioxide/ozone
I1 G I2 Output current
I3 G I4 Input current
RLY3, RLY2, RLY1 Three Relays
G, L, N G-ground wire, L-live, N-neutral
V + V- RX TX RS-232 communication output
V + V- A, B Digital input channel 1
V + V- A B Digital input channel 2
A1 B1 RS-485 communication output
+ - DC power supply

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Instrument Installation
1. Cable (Recommended stripping length for cables is at least 90mm, please use 0.5 to 1 square meter wire)
2. Cable ties
3. Waterproof cable glands
Typical Application

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Keypad Descriptions
Keypad Operation Tips:
Short Press: Release the button immediately after pressing.
Long Press: Press the button for 3 seconds and then release
Press and hold: Press the button, and accelerate after a certain time until the data is adjusted or changed to the user’s required value
before releasing the button.

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Display Descriptions
All pipe connections and electrical connections should be checked before use. After the power is switched on, the meter will display as
follows.
4.01
pH
ATC
25.0
°C
2021-11-09 12:53:17
pH/ORP
14.51 mA
pH Value + Unit Year - Month - Day
Sensor Communication
Warning
Hour : Minutes : Seconds
Relay 1 (blue is off)
Relay 2
Relay 3 Sensor Cleaning Relay
Instrument Type
Current 1
Current 2
Sensor Cleaning Symbol
Temp. + Unit
Automatic Temp Compensation

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Menu Structure
The following is the menu structure of the instrument:
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
Relay 3
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
Data Log
Graphic Trend
(Trend Chart)
Record Interval
Display according to
interval settings
480 points/screen
1h/point
12h/point
24h/point
Record Query Data Points Recorded Year/Month/Day |Time:Minutes
Record Interval
7.5s
90s
180s
Data Output
Upload Data
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

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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
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 solutioncalibration 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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Data Logging Graphic Trending (Trend Chart)
Press the [MENU] button to enter the setting mode,set the recording interval, and the instrument will:
Data Log
Graphic Trend
(Trend Chart)
Interval/point 400 points per screen, displays the most recent data trend graph
according to interval settings
1h/point 400 points per screen, displays trend chart of the last 16 days of data
12h/point 400 points per screen, displays trend chart of the last 200 days of data
24h/point 400 points per screen, displays trend chart of the last 400 days of data
Data Query Year/Month/Day Year/month/day time : minute : second value unit
Field Calibration
7.5s Store data every 7.5 seconds
90s |1.3 minutes Store data every 90 seconds |1.5 minutes
180s |3 minutes Store data every 180 seconds |3 minutes
Press the [MENU] button returns to the measurement screen. Press the /TREND button in the measurement mode to view the
trend chart of the saved data directly. There are 480 sets of data record per screen, and the interval time of each record can be selected
[7.5s, 90s, 180s], corresponding to the data displayed in [1h, 12h, 24h] per screen.
In the current mode, press the [ENT] button to move the data display line to the left and right (green), and display the data in left and
right circles. Long pressing of the [ENT] button can accelerate displacement. (When the bottom icon is green, the [ENT]
button is displacement direction, press the /TREND button to switch the direction of displacement)

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Measurement Settings

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SimplCal®Calibration

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Field Calibration

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Calibration Adjusment

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Alarm / Relay Settings

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Output Settings