Model Q45CT Toroidal Conductivity Monitor for Water Qualit

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Model Q45CT Toroidal Conductivity Monitor from Analytical Technology

The Model Q45CT toroidal conductivity system is designed for on line monitoring of chemically aggressive process solutions. This sensor consists of two metallic ribbon coils that are fixed in place by the sensor jacket material. The drive coil is used to induce a current in the process solution. The second sensing coil is used to measure the current in the process solution, the magnitude of this current is proportional to the conductivity of the process solution.

Toroidal sensors are available in polypropylene, Kynar and PEEK to ensure sensor wetted materials are chemically resistant to process chemicals. Sensor material is also non-conductive, thereby isolating the sensor from electrical noise and ground loops that can influence the integrity of the measurement. This material also makes the sensor resistant to electrode coating, as most substances do not adhere to the sensor material.

Sensors can be submersion mounted for easy installation in open tanks or pipe mounted in the optional 2" tee fitting, which is keyed to the sensor for proper alignment. Tee fitting materials is either polypropylene or 316 stainless steel. For larger pipe diameters, the sensor can be insertion mounted through a 1 1/2" NPT ball valve for easy retraction.

The Q45CT is also available as a Concentration Monitor. The monitor comes with concentration/temperature tables for sodium hydroxide, potassium hydroxide, hydrochloric acid, nitric acid and sulfuric acid. A user configurable table is also available for entering data points for a custom concentration curve.

The Model Q45CT toroidal conductivity system is well suited for aggressive chemical processes, water application that coat of foul traditional sensors and plating bath operations where high current densities are present.

Specifications - Monitor

Measuring Range	Main Input: 0.0 uS to 2000 mS % concentration mg/L Total Dissolved Solids Loop current 4.00 to 20.00 mA Sensor temperature: -10 to 210°C
Main Parameter Range	0 to 2,000 uS, 0.000 to 2.000 mS, 0.00 to 20.00 mS, 0.0 to 200.0 mS, 0 to 2000 mS, 0.0000 to 2.000S
Repeatability	+/- 3% or span or 0.1 uS whichever is greater
Sensitivity	0.05% of span or 0.1 uS whichever is greater
Non-Linearity	0.3% of span or 0.1 uS whichever is greater
Stability	0.1% of span per 24 hours
Temperature Drift	Span or zero, 0.03% of span/°C
Warm-Up Time	7 seconds to rated performance
Response Time	6 seconds to 90% of step input at lowest setting
Max Sensor to Analyzer Distance	200 feet
Temperature Input	Selectable Pt1000 to Pt100 RTD with automatic compensation
Filter	Adjustable, 0-9.9 minutes additional damping to 90% step input
Output Isolation	600 V galvanic isolation
EMI/RFI Influence	Designed to EN 61326-1
Location	Designed for hazardous and non hazardous locations
Keypad	4 key membrane type with tactile feedback, polycarbonate with UV coating, integral EMI/static shield and conductively coated window
Display	Large, high contrast, Super-Twist (STN) LCD 4 digit main display with sign, 0.75" seven segment characters, 12 digit alpha numeric second line display, 5 x 7 dot matrix characters
Mounting Options	Wall, panel or pipe/handrail
Conduit Openings	3 M16 openings, cord grips and conduit adapter included
Temperature	Service: -20 to 60°C Storage: -30 to 70°C
Humidity	0-95% RH, non-condensing
Weight	Loop powered: 1 pound Other configurations: 1.5 pounds
Enclosure	Panel mount standard, NEMA 4X wall mount optional

Specifications - Sensors

Sensor	Toroidal electrode
Wetted Materials	Polypropylene, Kynar or PEEK
Sensor Cable	20 feet standard, 200 feet maximum
Response Time	90% in 2 seconds
Temperature Element	Pt1000 RTD
Temperature Limits	0 -105°C
Pressure Limits	0-150 psig
Process Connection	3/4" MNPT rear thread, optional 2" keyed tee fitting
Minimum Conductivity	500 microSiemens

Ordering Information

For pricing please call AFC International at 800-952-3293, 219-987-6825 or fax 219-987-6826 or email sales@afcintl.com.

Downloads

Q45CT Toroidal Conductivity Monitor datasheet

Features

Non-Contacting Sensor: The non-contacting sensor contains two toroids that are isolated from the process by the body material, making the sensor resistant to foulants and electrical interferences.

Multiple Body Materials: The sensor body materials can be made of polypropylene, Kynar (PVDF), or PEEK.

Loop-powered, AC or Battery Versions: This line of microprocessor based instrumentation allows for easy implementation of loop-powered or battery-powered capability within the same instrument. This instrument can be rapidly converted between any of these versions with no requirements for software change.

Loop-powered (16-35 VDC) Transmitter, 4-20 mA output

Line-powered (115/230 VAC) Analyzer, dual relays, dual 4-20 mA outputs

Battery-powered (( VDC) Monitor/Data Logger, dual 0-2.5 VDC outputs

Standard PID Output: A PID control output is standard in every Q45CT monitor, with control parameters easily user configurable.

Dual Alarm Relays/Analog Outputs: AC operated systems provide two relays that are configurable for either "control mode" or "alarm mode" of operation and two analog outputs that are assignable for conductivity and/or temperature.

Flexible Calibration: Two point and sample calibration options include stability monitors to check temperature and main parameter stability before accepting data.

Large, Dual Line Display: The large, high contrast, super twist display provides excellent readability over a wide operating temperature range, even in low light conditions. The main display line consists of large, segmented characters with measurement units. The secondary display utilizes easily readable dot matrix characters for clear display of calibration and diagnostic messages. Two or four measured parameters may be displayed simultaneously.

Last Revised: 2/1/09