ICON ProCon C500 Series User manual

C500 |C520 Series Controller
Conductivity |TDS |Resistivity |Salinity
Operating Manual

C500 | C520 Series Operating Manual
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Contents
Preface .........................................................................................................................................................................................................................................3
Features...........................................................................................................................................................................................................................................3
Technical Specications ...................................................................................................................................................................................................... 4
Typical Application.................................................................................................................................................................................................................. 4
Instrument Connection........................................................................................................................................................................................................5
Dimension......................................................................................................................................................................................................................................6
Instrument Installation .........................................................................................................................................................................................................6
Slim Line Wall Mount Bracket..........................................................................................................................................................................................7
Display Descriptions ...............................................................................................................................................................................................................8
Keypad Descriptions...............................................................................................................................................................................................................8
Menu Structure ..........................................................................................................................................................................................................................9
Factory Calibration.................................................................................................................................................................................................................. 11
Factory Default Current Outputs................................................................................................................................................................................. 12
Calibration.................................................................................................................................................................................................................................... 12
Field Calibration .......................................................................................................................................................................................................................13
Calibration.................................................................................................................................................................................................................................... 13
Measurement Settings (Quick Start).........................................................................................................................................................................15
Temperature Calibration....................................................................................................................................................................................................16
Point Calibration......................................................................................................................................................................................................................17
Field Calibration .......................................................................................................................................................................................................................18
Relays ..............................................................................................................................................................................................................................................19
4-20mA Ouput.........................................................................................................................................................................................................................20
RS485 Modbus..........................................................................................................................................................................................................................21
System Setup............................................................................................................................................................................................................................ 22
MODBUS RTU General Information.......................................................................................................................................................................... 23
MODBUS RTU Transmission Mode ............................................................................................................................................................................24
MODBUS RTU CRC Check ............................................................................................................................................................................................... 25
Implementation of MODBUS RTU in Instrument .......................................................................................................................................... 25
Data Format...............................................................................................................................................................................................................................27
Read Instruction Mode ......................................................................................................................................................................................................29
Daily Maintenance ................................................................................................................................................................................................................29
Troubleshooting......................................................................................................................................................................................................................30
Warranty.......................................................................................................................................................................................................................................30

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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
Data recording / curve display
Multiple automatic calibration
Manual and automatic temperature compensation
Three (3) relay control switches
4-20mA & RS485 multiple output modes
Multi-parameter display simultaneously shows conductivity and temperature
Password protection

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Technical Specifications
Measuring Range 0 – 500µS/cm
Resolution 0.1µS/cm |0.01mS/cm
Intrinsic Error ±0.5% F.S
Resistivity 0 – 18.25MΩ/cm
Resolution 0.01KΩ/cm | 0.01MΩ/cm
TDS 0 – 250g/L
Resolution 0.01mg/L |0.01g/L
Salinity 0 – 700ppt
Resolution 0.01ppm |0.01ppt
Working Temperature 32 – 302°F | 0 – 150°C
Temperature Compensation Automatic or Manual
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
Environmental 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
Typical Application
Conductivity / TDS / Salinity / Resistivity
2023-01-09 12:53:17
83.01
µS/cm
SP1 SP3SP2
14.51 mA
C1
25.0 °C
M ENU C AL
E SC E NT
I NFO I NFO
R

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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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Dimension
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

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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.
83.01 µS/cm
ATC
25.0
°C
2023-11-09 12:53:17
Conductivity / TDS / Salinity / Resistivity
14.51 mA
Measurement + Unit Year / Month / Day
Sensor Communication
Warning
Time : Minutes:Seconds
Relay 1 - Blue is Off
Relay 2 - Red is On
Relay 3
Instrument type
mA 1
mA 2
Sensor Cleaning Symbol
Temp.°F °C
Automatic Temp Compensation
1000Ω
Measurement Mode Programming Mode
Calibration Mode
Note: New Sensors are Factory Calibrated Data Logging Trend Chart
2023-01-09 12:53:17
Calibration
Set points
Output
History
System
25.0 °C
83.01 µS/cm
2023-01-09 12:53:17
2023-01-09 12:53:17
Voltage:-5 mV
Calibrating
Point 2
1413 µS/cm
20
16
12
8
4
050 100 15 0 200 250 300 350 400
2023-01-09 12:53:17
2021-11-09 12:53:17 1200 µS/cm 25.0 °C
Conductivity / TDS / Salinity / Resistivity
Conductivity / TDS / Salinity / Resistivity
Conductivity / TDS / Salinity / Resistivity
Conductivity / TDS / Salinity / Resistivity
Keypad Descriptions
1. Enter Calibration Mode
2. Check Calibration Status
Main Menu Return to Previous Menu Cursor Right / Display Trend Chart
Cursor Down / Info Confirm Selections

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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]
Item Display Selection Sub Menu
Congure
Sensor
Type
EC
TDS
Salinity
Resistivity
Unit
µS/cm
mS/cm
ppm
ppt
%
Electrode Constant 1.0 (Default, can be modied)
Temperature Coefcient 2.0 (Default, can be modied)
Temperature
Temperature Sensor
NTC2.252 kΩ
NTC10 kΩ
Pt100
Pt1000 (Default)
Temperature Offset 0.0000 (Enter Value if Required)
Temperature Input
Automatic
Manual
Temperature Unit
°C
°F (Default)
Calibration
Standard
Solution
Calibration
Calibration Point 1 0.01 μS/cm/cm (Default, can be modied)
Calibration Point 2 1413mS/cm (Default, can be modied)
Calibration Point 3 12.88mS/cm (Default, can be modied)
Calibration Point 4 111mS/cm (Default, can be modied)
Calibration Point 5 800 mS/cm (Default, can be modied)
Calibration Adjustment
Voltage 1 (Default: 00.010)
Voltage 2 (Default: 1413)
Voltage 3 (Default: 012880)
Voltage 4 (Default: 149812)
Voltage 5 (Default: 800000)
Field Calibration
Field Calibration 00.010 (Default)
Offset Adjustment 00.000 (Default)
Slope Adjustment 01.000 (Default)

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Item Display Selection Sub Menu
Set Points
Relay 1
Status ON
OFF
High/Low Setpoint
High Alarm
Low Alarm
Clean
Limit Value 00.00 (Default, can be modied)
Hysteresis 00.000 (Default, can be modied)
Relay 2
Status ON
OFF
High/Low Setpoint
High Alarm
Low Alarm
Clean
Limit Value 00.00 (Default, can be modied)
Hysteresis 00.000 (Default, can be modied)
Relay 2
Status ON
OFF
High/Low Setpoint
High Alarm
Low Alarm
Clean
Limit Value 00.00 (Default, can be modied)
Hysteresis 00.000 (Default, can be modied)
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