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Water Treatment Controller for unparalleled versatility and a collection of sensors and powerful built-in algorithms for control of chemical metering pumps and valves in a broad range of water treatment applications.
Walchem is a leading manufacturer of all things related to water treatment systems and solutions. We provide innovative solutions for a broad range of applications and offer the highest quality products on the market. We have a great selection of water treatment controllers to choose from to help with all of your water treatment needs. Our water controllers are easy to use and come with advanced programming to help with specific requirements.
| 0.01 Cell Contacting Conductivity | 0-300 μS/cm | 0.01 μS/cm, 0.0001 mS/cm, 0.001 mS/m, 0.0001 S/m, 0.01 ppm | ±1% of reading |
| 0.1 Cell Contacting Conductivity | 0-3,000 μS/cm | 0.1 μS/cm, 0.0001 mS/cm, 0.01 mS/m, 0.0001 S/m, 0.1 ppm | ±1% of reading |
| 1.0 Cell Contacting Conductivity | 0-30,000 μS/cm | 1 μS/cm, 0.001 mS/cm, 0.1 mS/m, 0.0001 S/m, 1 ppm | ±1% of reading |
| 10.0 Cell Contacting Conductivity | 0-300,000 μS/cm | 10 μS/cm, 0.01 mS/cm, 1 mS/m, 0.001 S/m, 10 ppm | ±1% of reading |
| pH | -2 to 16 pH units | 0.01 pH units | ±0.01% of reading |
| ORP/Ion Selective Electrode | -1500 to 1500 mV | 0.1 mV | ±1 mV |
| Disinfection sensors | -2000 to 1500 mV | 0.1 mV | ±1 mV |
| 0 – 2 ppm to 0 – 20,000 ppm | Varies with range and slope | Varies with range and slope | |
| Electrodeless Conductivity | 500 – 12,000 μS/cm | 1 μS/cm, 0.01 mS/cm, 0.1 mS/m, 0.001 S/m, 1 ppm | ±1% of reading |
| 3,000-40,000 μS/cm | 1 μS/cm, 0.01 mS/cm, 0.1 mS/m, 0.001 S/m, 1 ppm | ±1% of reading | |
| 10,000-150,000 μS/cm | 10 μS/cm, 0.1 mS/cm, 1 mS/m, 0.01 S/m, 10 ppm | ±1% of reading | |
| 50,000-500,000 μS/cm | 10 μS/cm, 0.1 mS/cm, 1 mS/m, 0.01 S/m, 10 ppm | ±1% of reading | |
| 200,000-2,000,000 μS/cm | 100 μS/cm, 0.1 mS/cm, 1 mS/m, 0.1 S/m, 100 ppm | ±1% of reading | |
| Temperature | 23 to 500°F (-5 to 260°C) | 0.1°F (0.1°C) | ±1% of reading within range |
(model code dependent)
Relay Board Option 9: 100 to 240 VAC, 50 or 60 Hz, 20A max
All other options: 100 to 240 VAC, 50 or 60 Hz, 15 A maximum
Optional Auxiliary DC Power
12V or 24V, 10 Watts, fully isolated with short circuit protection
(0-8 depending on model code)
Contacting Conductivity: 0.01, 0.1, 1.0, or 10.0 cell constant, or
Electrodeless Conductivity or
Disinfection or
Amplified pH, ORP, or Ion Selective Electrode which requires a
preamplified signal. ±5VDC power available for external preamps.
Walchem WEL or WDS series pH/ORP sensors recommended.
Each sensor input card contains a temperature input.
Temperature: 100 or 1000 ohm RTD, 10K or 100K Thermistor
2-wire loop powered and self-powered transmitters supported
3-wire and 4-wire transmitters supported
All Channels fully isolated, input and power
Channel 1, 130 ohm input resistance, Channel 2-6, 280 ohm
input resistance
Available Power: Isolated 24 VDC ±15% supply per channel. 1.5 W
(62.5 mA maximum for each channel)
State-Type Digital Inputs
Electrical: Optically isolated and providing an electrically isolated 12V
power with a nominal 2.5 mA current when the digital input switch is
closed. Typical response time: < 2 seconds. Devices supported: Any
isolated dry contact (i.e. relay, reed switch). Types: DI State
Low Speed Counter-Type Digital Inputs
Electrical: Optically isolated and providing an electrically isolated 12V power with a nominal 2.5 mA current when the digital input switch is closed, 0-20 Hz, 25 msec minimum width. Devices supported: Any device with isolated open drain, open collector, transistor or reed switch.
Types: Contacting Flowmeter
High Speed Counter-Type Digital Inputs
Electrical: Optically isolated and providing an electrically isolated 12V power with a nominal 2.5 mA current when the digital input switch is closed, 0-500 Hz, 1.0 msec minimum width. Devices supported: Any device with isolated open drain, open collector, transistor or reed switch.
Types: Paddlewheel Flowmeter
Pre-powered on circuit board switching line voltage
Two, three or four relays are fused together
(depending on model code) as one group,
total current must not exceed 6.A (resistive),
1/8 HP (93W)
6 A (resistive), 1/8 HP (93W)
Dry contact relays are not fuse protected.
Opto-isolated, solid-state relay, 200mA, 40V DC
VLOWMAX = 0.05V @ 18mA
Internally powered, 15VDC, Fully isolated
600 ohm max resistive load
Resolution 0.0015% of span
Accuracy ± 0.5% of reading
10/100 802.3-2005
Auto MDIX support
Auto Negotiation
Radio Protocol: IEEE 802.11 b/g/n
Security Protocols (Ad-Hoc Mode): WPA2-Personal
Security Protocols (Infrastructure Mode): WPA/WPA2-
Personal, WEP Certifications and Compliance: FCC, IC TELEC,
CE/ETSI, RoHS, WiFi Certified
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at their own expense.
Connector: Type A receptacle
Speed: High speed (480 Mbit)
Power: 0.5 A maximum
Model BR2032, 3-volt Lithium Coin Cell 20 mm diameter
High quality accessories for cooling tower, boiler, potable water, and wastewater applications.
Carefully designed accessories and selected for compatibility with our pumps and controllers to enable our customers to provide a complete system solution. Here is just a sampling of the sensors and accessories available.
Disinfection Sensors
Amperometric disinfection sensors offer a cost effective and reliable solution to your disinfection control requirements. We offer sensors, in varying ranges of concentration, for free chlorine/bromine, total chlorine, chlorine dioxide, ozone, peracetic acid and hydrogen peroxide. Whether the application is cooling tower, food and beverage, drinking water, wastewater or swimming pool, these sensors are the ideal solution.
Fluorometers
The Little Dipper 2 and Pyxis in-line fluorometers are rugged, 24/7 sampling devices that provide maximum performance, minimal maintenance and solid state reliability. They can be used with data collection systems to monitor and control the level of treatment chemicals for cooling tower and boiler applications. The handheld Little Dipper is a small, lightweight and highly durable fluorometer ideal for quick measurements in the field.
Contacting Conductivity Sensors
Contacting conductivity sensors are ideal for use in cooling towers and boilers, reverse osmosis equipment, and other non-oily applications. A variety of cell constants are available to handle a range of conductivities.
Electrodeless
Conductivity Sensors
Electrodeless conductivity sensors may be installed in a variety of very harsh chemical control applications, including oily cleaner baths, chromates, rinse tanks, fume scrubbers and other concentrated chemicals up to a conductivity of 1000 mS/cm (range varies with solution temperature).
pH/ORP Sensors
Cost-effective differential pH/ORP electrodes for industrial and municipal applications.
Water Meters
WFM Series water meters have earned a reputation for design simplicity, wide range of applications and accuracy in low-quality water. The WFM Series uses the widely recognized multi-jet principle, which has been accepted as an international standard for many years. These meters are available with either a two-wire reed switch, or a solid state, three-wire Hall effect sensor.
Metering Pumps
The E-Class is the most innovative and comprehensive metering pump product line in the world. Over 50 years of pump experience and a commitment to superior mechanical design has led to development of many industry firsts, including 360 stroke-per-minute technology, and the world’s highest capacity solenoid metering pumps.
Accessories
To complete your system, Walchem provides high quality accessories that are required for cooling tower, boiler, potable water, and wastewater applications. All of Walchem’s accessories are carefully designed and selected for compatibility with our pumps and controllers to enable our customers to provide a complete system solution.
Customer + Facilities Management
Process Monitoring + Control
Data Management + Visualizations
Alarms + Custom Notifications
Team Management
Water Treatment Controller for unparalleled versatility and a collection of sensors and powerful built-in algorithms for control of chemical metering pumps and valves in a broad range of water treatment applications.
Walchem is a leading manufacturer of all things related to water treatment systems and solutions. We provide innovative solutions for a broad range of applications and offer the highest quality products on the market. We have a great selection of water treatment controllers to choose from to help with all of your water treatment needs. Our water controllers are easy to use and come with advanced programming to help with specific requirements.
| 0.01 Cell Contacting Conductivity | 0-300 μS/cm | 0.01 μS/cm, 0.0001 mS/cm, 0.001 mS/m, 0.0001 S/m, 0.01 ppm | ±1% of reading |
| 0.1 Cell Contacting Conductivity | 0-3,000 μS/cm | 0.1 μS/cm, 0.0001 mS/cm, 0.01 mS/m, 0.0001 S/m, 0.1 ppm | ±1% of reading |
| 1.0 Cell Contacting Conductivity | 0-30,000 μS/cm | 1 μS/cm, 0.001 mS/cm, 0.1 mS/m, 0.0001 S/m, 1 ppm | ±1% of reading |
| 10.0 Cell Contacting Conductivity | 0-300,000 μS/cm | 10 μS/cm, 0.01 mS/cm, 1 mS/m, 0.001 S/m, 10 ppm | ±1% of reading |
| pH | -2 to 16 pH units | 0.01 pH units | ±0.01% of reading |
| ORP/Ion Selective Electrode | -1500 to 1500 mV | 0.1 mV | ±1 mV |
| Disinfection sensors | -2000 to 1500 mV | 0.1 mV | ±1 mV |
| 0 – 2 ppm to 0 – 20,000 ppm | Varies with range and slope | Varies with range and slope | |
| Electrodeless Conductivity | 500 – 12,000 μS/cm | 1 μS/cm, 0.01 mS/cm, 0.1 mS/m, 0.001 S/m, 1 ppm | ±1% of reading |
| 3,000-40,000 μS/cm | 1 μS/cm, 0.01 mS/cm, 0.1 mS/m, 0.001 S/m, 1 ppm | ±1% of reading | |
| 10,000-150,000 μS/cm | 10 μS/cm, 0.1 mS/cm, 1 mS/m, 0.01 S/m, 10 ppm | ±1% of reading | |
| 50,000-500,000 μS/cm | 10 μS/cm, 0.1 mS/cm, 1 mS/m, 0.01 S/m, 10 ppm | ±1% of reading | |
| 200,000-2,000,000 μS/cm | 100 μS/cm, 0.1 mS/cm, 1 mS/m, 0.1 S/m, 100 ppm | ±1% of reading | |
| Temperature | 23 to 500°F (-5 to 260°C) | 0.1°F (0.1°C) | ±1% of reading within range |
(model code dependent)
Relay Board Option 9: 100 to 240 VAC, 50 or 60 Hz, 20A max
All other options: 100 to 240 VAC, 50 or 60 Hz, 15 A maximum
Optional Auxiliary DC Power
12V or 24V, 10 Watts, fully isolated with short circuit protection
(0-8 depending on model code)
Contacting Conductivity: 0.01, 0.1, 1.0, or 10.0 cell constant, or
Electrodeless Conductivity or
Disinfection or
Amplified pH, ORP, or Ion Selective Electrode which requires a
preamplified signal. ±5VDC power available for external preamps.
Walchem WEL or WDS series pH/ORP sensors recommended.
Each sensor input card contains a temperature input.
Temperature: 100 or 1000 ohm RTD, 10K or 100K Thermistor
2-wire loop powered and self-powered transmitters supported
3-wire and 4-wire transmitters supported
All Channels fully isolated, input and power
Channel 1, 130 ohm input resistance, Channel 2-6, 280 ohm
input resistance
Available Power: Isolated 24 VDC ±15% supply per channel. 1.5 W
(62.5 mA maximum for each channel)
State-Type Digital Inputs
Electrical: Optically isolated and providing an electrically isolated 12V
power with a nominal 2.5 mA current when the digital input switch is
closed. Typical response time: < 2 seconds. Devices supported: Any
isolated dry contact (i.e. relay, reed switch). Types: DI State
Low Speed Counter-Type Digital Inputs
Electrical: Optically isolated and providing an electrically isolated 12V power with a nominal 2.5 mA current when the digital input switch is closed, 0-20 Hz, 25 msec minimum width. Devices supported: Any device with isolated open drain, open collector, transistor or reed switch.
Types: Contacting Flowmeter
High Speed Counter-Type Digital Inputs
Electrical: Optically isolated and providing an electrically isolated 12V power with a nominal 2.5 mA current when the digital input switch is closed, 0-500 Hz, 1.0 msec minimum width. Devices supported: Any device with isolated open drain, open collector, transistor or reed switch.
Types: Paddlewheel Flowmeter
Pre-powered on circuit board switching line voltage
Two, three or four relays are fused together
(depending on model code) as one group,
total current must not exceed 6.A (resistive),
1/8 HP (93W)
6 A (resistive), 1/8 HP (93W)
Dry contact relays are not fuse protected.
Opto-isolated, solid-state relay, 200mA, 40V DC
VLOWMAX = 0.05V @ 18mA
Internally powered, 15VDC, Fully isolated
600 ohm max resistive load
Resolution 0.0015% of span
Accuracy ± 0.5% of reading
10/100 802.3-2005
Auto MDIX support
Auto Negotiation
Radio Protocol: IEEE 802.11 b/g/n
Security Protocols (Ad-Hoc Mode): WPA2-Personal
Security Protocols (Infrastructure Mode): WPA/WPA2-
Personal, WEP Certifications and Compliance: FCC, IC TELEC,
CE/ETSI, RoHS, WiFi Certified
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at their own expense.
Connector: Type A receptacle
Speed: High speed (480 Mbit)
Power: 0.5 A maximum
Model BR2032, 3-volt Lithium Coin Cell 20 mm diameter
High quality accessories for cooling tower, boiler, potable water, and wastewater applications.
Carefully designed accessories and selected for compatibility with our pumps and controllers to enable our customers to provide a complete system solution. Here is just a sampling of the sensors and accessories available.
Disinfection Sensors
Amperometric disinfection sensors offer a cost effective and reliable solution to your disinfection control requirements. We offer sensors, in varying ranges of concentration, for free chlorine/bromine, total chlorine, chlorine dioxide, ozone, peracetic acid and hydrogen peroxide. Whether the application is cooling tower, food and beverage, drinking water, wastewater or swimming pool, these sensors are the ideal solution.
Fluorometers
The Little Dipper 2 and Pyxis in-line fluorometers are rugged, 24/7 sampling devices that provide maximum performance, minimal maintenance and solid state reliability. They can be used with data collection systems to monitor and control the level of treatment chemicals for cooling tower and boiler applications. The handheld Little Dipper is a small, lightweight and highly durable fluorometer ideal for quick measurements in the field.
Contacting Conductivity Sensors
Contacting conductivity sensors are ideal for use in cooling towers and boilers, reverse osmosis equipment, and other non-oily applications. A variety of cell constants are available to handle a range of conductivities.
Electrodeless
Conductivity Sensors
Electrodeless conductivity sensors may be installed in a variety of very harsh chemical control applications, including oily cleaner baths, chromates, rinse tanks, fume scrubbers and other concentrated chemicals up to a conductivity of 1000 mS/cm (range varies with solution temperature).
pH/ORP Sensors
Cost-effective differential pH/ORP electrodes for industrial and municipal applications.
Water Meters
WFM Series water meters have earned a reputation for design simplicity, wide range of applications and accuracy in low-quality water. The WFM Series uses the widely recognized multi-jet principle, which has been accepted as an international standard for many years. These meters are available with either a two-wire reed switch, or a solid state, three-wire Hall effect sensor.
Metering Pumps
The E-Class is the most innovative and comprehensive metering pump product line in the world. Over 50 years of pump experience and a commitment to superior mechanical design has led to development of many industry firsts, including 360 stroke-per-minute technology, and the world’s highest capacity solenoid metering pumps.
Accessories
To complete your system, Walchem provides high quality accessories that are required for cooling tower, boiler, potable water, and wastewater applications. All of Walchem’s accessories are carefully designed and selected for compatibility with our pumps and controllers to enable our customers to provide a complete system solution.
Customer + Facilities Management
Process Monitoring + Control
Data Management + Visualizations
Alarms + Custom Notifications
Team Management
WJF Instrumentation Ltd.
#5 3610 – 29th Street N.E.
Calgary, Alberta
Canada
T1Y 5Z7
Calgary Head Office
Toll-Free: (877) 291-5572
Standard: (403) 291-5570
Ontario & Maritimes Sales:
Toll-Free (877) 291-5572
