This product appears in the Icon Process Controls Catalogue 2026
Rolls-Royce
Bureau Veritas
Renouveau La Fontaine
Englobe
National Defence
Government of QuébecOverview
The C400 is a ProCon conductivity controller with color LED display. It has a modular design, SimplCal calibration and an on-screen step-by-step setup, and relay, 4-20mA and RS485 outputs are included. It measures conductivity, resistivity, TDS and salinity with a color LED display.
- SimplCal auto-calibration and step-by-step on-screen menu
- Relay, 4-20mA and RS485 outputs included
- Modular design, panel, pipe or wall mount
- High limit, low limit and hysteresis control
- Password protection
- Active red alarm LED
Specifications
- Relay Contacts
- 5A 240VAC / 5A 28VDC
- Outputs
- Two 4-20mA + RS485 Modbus RTU
- Power Supply
- 9 to 36 VDC (std)
- Operating Temperature
- 14 to 140 F (-10 to 60 C)
- Enclosure Rating
- IP65
Documents
Calibration and repair
Send it to our Montreal service team. We evaluate the instrument and send a detailed quote before any work starts.
Compare with similar models
Icon Process Controls · Water Quality Controller| Spec | This model Icon C400 Conductivity Controller with Color LED Displayfrom $899.85 CAD
|  Icon IS-750D Online Ion Analyzer IS-750D$938.65 CAD
|  Icon D500 pH/ORP Controller with Single-Channel Data Trendingfrom $849.85 CAD
|  Icon C500 Conductivity Controller with Single-Channel Data Trendingfrom $999.85 CAD
|
|---|---|---|---|---|
| Measuring Range | 0 - 500 mS/cm | — | pH -2 to 16 / ORP -2000 to 2000 mV | 0 - 500 mS/cm |
| Output | 4-20mA + RS485 + relays | 2 x 4-20mA / RS485 | 4-20mA + RS485 + relays | 4-20mA + RS485 + relays |
| Power | 9 - 36 VDC | 12 - 24 VDC | 9 - 36 VDC | 9 - 36 VDC |
Questions, answered
How fast will I get a price?
Send the quote request and a specialist replies within 4 business hours, Monday to Friday, 8:00 to 4:30 ET. This item also has an online price: you can buy it straight from the cart.
Can we pay on account or by purchase order?
Yes. With established credit, terms are Net 30 days, and you can send your purchase order with the quote request. We also accept Visa, Mastercard and American Express.
How is shipping charged?
Bought online, the shipping cost shows at checkout before you pay. On quotes and account orders, freight is F.O.B. Montréal: the carrier charge is worked out at shipment from the packed weight and dimensions, and added to your invoice. In-stock items can also be picked up the same day in Montréal (8605 rue du Champ-d'Eau).
Can I return it?
Yes, within 30 days of purchase, with a return authorization number from customer service first. A 25% restocking fee applies, unless it is a defect covered by the warranty. Special orders, hazardous materials, flammable liquids and gases can't be returned. Return policy
Can ERE calibrate or repair it?
Yes. Our Montréal service shop calibrates and repairs it in-house. Request service
What warranty does it carry?
The manufacturer's warranty applies. The exact terms are in the warranty document. Read the warranty
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