ICON proCon D500 Series User manual

D500 |D520 Series
pH/ORP Digital Analyzer Controller
Operating Manual

D500 | D520 Series Operating Manual
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Contents
Preface .........................................................................................................................................................................................................................................3
Features...........................................................................................................................................................................................................................................3
Technical Specications ...................................................................................................................................................................................................... 4
Dimension..................................................................................................................................................................................................................................... 4
Instrument Connection........................................................................................................................................................................................................5
Instrument Installation .........................................................................................................................................................................................................6
Slim Line Wall Mount Bracket..........................................................................................................................................................................................7
Typical Application...................................................................................................................................................................................................................7
Keypad Descriptions...............................................................................................................................................................................................................8
Display Descriptions ...............................................................................................................................................................................................................9
Menu Structure ........................................................................................................................................................................................................................10
Calibration.................................................................................................................................................................................................................................... 12
pH Buffer Reading vs Temperature............................................................................................................................................................................ 13
Field Calibration.......................................................................................................................................................................................................................13
Data Logging Graphic Trending (Trend Chart) ..................................................................................................................................................14
Measurement Settings........................................................................................................................................................................................................16
SimplCal® Calibration ...........................................................................................................................................................................................................17
Field Calibration.......................................................................................................................................................................................................................18
Calibration Adjusment ........................................................................................................................................................................................................19
Alarm / Relay Settings.........................................................................................................................................................................................................20
Output Settings .......................................................................................................................................................................................................................21
MODBUS RTU General Information.......................................................................................................................................................................... 22
MODBUS RTU Transmission Mode ............................................................................................................................................................................ 23
MODBUS RTU CRC Check ...............................................................................................................................................................................................24
Implementation of MODBUS RTU in Instrument ..........................................................................................................................................24
Data Format...............................................................................................................................................................................................................................26
Read Instruction Mode ......................................................................................................................................................................................................28
Daily Maintenance ................................................................................................................................................................................................................28
Troubleshooting......................................................................................................................................................................................................................29
Warranty.......................................................................................................................................................................................................................................29

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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
Multiple automatic SimplCal®calibration
Manual and automatic temperature compensation
Three relay control switches
4-20mA & RS485 multiple output modes
Multi-parameter display — simultaneously shows pH, ORP and temperature
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 Range 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
Temperature. Compensation Manual or Automatic
Stability pH: 0.01pH/24h | ORP: 1mV/24h
Outputs Two (2) 4–20mA | 20–4mA | 0–20mA
Communication RS485 MODBUS RTU
Relay Control Contact 5A 240VAC | 5A – 28VDC
Power Supply 9 – 36VDC (std) | 85 – 265VAC | Power Consumption 3W
Working Temperature 14 – 140°F | -10 – 60°C
Relative Humidity ≤ 90%
Enclosure Rating IP65
Weight 0.7kg
Dimensions 144 × 144 × 118mm
Installation Opening Size 138 × 138mm
Installation methods Panel |Pipe |Wall
Other functions Data record & Curve display
Dimension

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Instrument Connection
REF2
V+ V- A1 B1 V+ V- A2 B2
I1 G I2 A3 B3
T2+ T2-
EC1 EC2 EC3 EC4 RLY3 RLY2 RLY1 L N
G TX RX P+ P-
REF1
INPUT1
TEMP1 TEMP1
SEN-
SEN+
INPUT2
TEMP2
TEMP2
GND
CE
RE
WE
V+, V-, A1, B1 Sensor Input channel 1
V+, V-, A2, B2 Sensor Input channel 2
I1, G, I2 Current Output
A3, B3 RS485 Communication Output
G, TX, RX RS232 Communication Output
P+, P DC Power
T2+, T2- Temperature Connection
EC1, EC2, EC3, EC4 Conductivity | Resistivity Connection
RLY3 RLY2 RLY1 Three Relays
L,N, Communication Terminal L-Live wire, N-Neutral wire, -Earth wire
REF1 pH/Ion Reference 1
INPUT1 pH/Ion Measurement 1
TEMP1 Temperature 1
SEN-, SEN+ Membrane Dissolved Oxygen | Residual Chlorine
REF2 pH Reference 2
INPUT2 pH Measurement 2
TEMP2 Temperature 2
GND Ground Connection (used for testing)
CE,RE,WE Potentiostatic Residual Chlorine | Chlorine dioxide | Ozone

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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

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Slim Line Wall Mount Bracket
Typical Application

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Keypad Descriptions
Relay 1
Pump/Valve
Relay 2
Pump/Valve
Relay
Alarm/Cleaning
4-20mA
4-wire
pH/ORP
Sensor
pH/ORP
Sensor 1
pH/ORP
Sensor 2
Relay 1
Pump/Valve
Relay 2
Pump/Valve
Relay
Alarm/Cleaning
4-20mA
4-wire
No Pre-Amp Required No Pre-Amp Required
D400
R
PH / ORP
4.001
pH
14.51 mA
C
1
SP
1SP
2SP
3
pH / ORP
220
mV
25.0
°C
2019-01-09 12:53:17
D400
R
PH / ORP
4.01
8.05
pH
14.51 mA
C1
SP
1SP
2SP
3
pH / ORP
mV
1689
mV
25.0
°C
1689
mV
25.0
°C
2019-01-09 12:53:17

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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 (red is on)
Relay 3 Sensor Cleaning Relay
Instrument Type
Current 1
Current 2
Sensor Cleaning Symbol
Temp. + Unit
Automatic Temp Compensation
Calibration Mode
pH / ORP
14.51 mA
C1
SP1 SP2 SP3
7.00
4.01
10.01
-5 mV
170 mV
-5 mV
98 %
Done
Calibrating
Error
Offset:
Slope:
2023-11-09 12:53:17

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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