Cooling & Heating Water
Evaporative Cooling Tower
Track ambient conditions, fan operation, water quality, and basin level around heat-rejection equipment.
Measures: Humidity & temperature · Vibration · Water quality · Level · Condenser water flow · Pump dry-run protection
Outdoor Humidity & Temperature Transmitters
Outdoor humidity and temperature are measured to optimize evaporative cooling efficiency and water usage.
Dwyer Series RHPX Humidity & Temperature Transmitter with Solar Radiation ShieldRH & Temperature Combo (Optional Absolute RH/Dew Point/Enthalpy); mA/VDC Output Signals; 2% & 3% Accuracy; Solar Radiation Shield
Dwyer Series RHPX Outdoor Humidity & Temperature TransmitterRH & Temperature Combo (Optional Absolute RH/Dew Point/Enthalpy); mA/VDC Output Signals; 2% & 3% Accuracy; Outdoor Enclosure
Vibration Transmitters
Vibration transmitters detect abnormal equipment vibration, preventing mechanical failures in the cooling tower.
Dwyer Series-VBS Compact Vibration Switch for RMS Monitoring, Adjustable Set Point & DelayCompact vibration switch; adjustable RMS velocity & delay; 4‑20 mA output
Omega Series VT-110 Compact Vibration Velocity TransmitterMonitor Vibration in Harsh Industrial Environments; 4- 20 mA Loop Powered; IP67; M12 Female Connector
Omega Series VBT-1 Vibration Transmitter with 4-20 mA outputVibration Transmitter; 10 to 1000 Hz; 4-20 mA Loop Powered; IP68 (NEMA 6); 316 SS; M12 4 Pin Female
Omega Series AS-667 B&K Vibro Low Frequency AccelerometerGeneral Purpose Measurements on Rotating Machinery; 4-20 mA Loop Powered; IP66/IP67; 316 SS; M12 4 Pin Male
Water Quality Sensors & Transmitters
Water quality sensors monitor conductivity and pH to prevent scale, corrosion, and biological growth.
Omega Series CDTX45 2-Wire Isolated Conductivity Transmitter SystemIsolated Conductivity Transmitter System; 2-Wire 4-20 mA Output; 4 Titanium Electrodes; High Chemical Resistance; NEMA 4X Enclosure
Omega Series AM-2250TX Multi-Variable pH, ORP, Conductivity & Flow Loop Powered TransmitterMulti Variable Controller (pH, ORP, Contacting Conductivity, Flow); Two 4-20 mA Outputs; 3 Dry Contact Relay Outputs; NEMA 4X Enclosure
Omega Series PHTX45 2-Wire Isolated pH/ORP Transmitter SystemIsolated pH/ORP Transmitter System; Two-Wire 4-20 mA Output; IP65 (NEMA 4X); Universal Mounting Configurations
Omega Series PHTX-100 Loop Powered Indicating pH/ORP Meter & TransmitterIsolated pH/ORP/Temperature Meter & Transmitter System; Two-Wire 4-20 mA Output; IP65 (NEMA 4X); Wall & Panel Mounted
Omega Series FMG80A Low Flow MagmeterLow Flow Electromagnetic Flow Meter; 1/4" to 3/4" Pipe Tube; 4-20 mA & Pulse Output; Chemical & Corrosion Resistant; IP66 (NEMA 4X)
Level Detection Transmitters & Switches
Level detection ensures proper water levels in the cooling tower basin for continuous operation.
Dwyer Series F6-F7 Vertical Level Switches for Water, Oil & ChemicalsLiquid Level Switch for Water, Oil & Chemicals; Reed Switch; Reversible Switch Action; Hermetically Sealed; Optional Float Materials/Stems
Omega Series LVN10-20 Vertical Mounted Liquid Level SwitchLiquid Level Switch; Reversible Switch Action; Reed Switch; IP68 (NEMA 6) Rating; Brass Stem; BUNA-N Float Material
Omega Series LVSW-701 Single Point Ultrasonic Liquid Level SwitchSingle Point Ultrasonic Level Switch; 316 Stainless Steel; Mounts in any Direction; SPDT Selectable contact; 1A switch Rating
Omega Series LVU150 Submersible Ultrasonic Level SwitchSubmersible Ultrasonic Level Switch; Selectable SPST N/O or N/C Relay; 1A Contact Rating; IP68 (NEMA 6)
Dwyer Series L10 Mini Brass & Stainless Steel Float Switches for Liquid ControlMagnetic Reed Switch; Side Mount; N/O or N/C Selectable Contact; Optional Float/Body Materials; IP66 (NEMA 4X)
Omega Series LVN90 Side Mount Liquid Level SwitchesSealed SPST Switch; Side Mount; N/O or N/C Selectable Contact; Optional Float/Stem Materials; IP68 (NEMA 6)
Omega Series LVV110 Vertical Buoyancy Level Switch SensorsFilling Baffle with Self Flushing Design; Sealed SPDT N/O or N/C Selectable Contact; Eliminates Surface Chatter; IP68 (NEMA 6)
Dwyer Series L8 Flotec Liquid Level Float SwitchesGeneral Purpose applications; Horizontal Mount; Excellent Chemical Resistance; SPDT Snap Switch; Optional Weatherproof Enclosure
Omega Series LVSW-710/720 Compact Ultrasonic Point Level SwitchSolid State Liquid Level Switch; Small Size; N/O SPST Relay, 1A Switch Rating; 316L SS Wetted Materials
LWT300 Guided Wave RadarThe LWT300 series addresses several industries such as oil and gas, petrochemical, chemical, power generation, water and wastewater, pulp and paper, and marine. To meet these challenging applications, this series of instruments offers a…
Condenser Water Flow
Clamp-on ultrasonic flowmeters measure condenser water circulation from outside the pipe, on pipes up to several metres across, and can be fitted to a running system without a shutdown.
Pump Dry-Run Protection
Thermal flow switches on the circulating pumps give early warning of dry running, before a pump fails or the cooling tower has to shut down.
Application data from the DwyerOmega Application Navigator ↗. Ronsor can help adapt it to your site.


