M O R E A Hygrometers C U R A T E Optidew F A S T E R E S ...

1 OptidewOptical Dewpoint and RH HygrometerFundamental, optical technology in a PID controlled,digital dewpoint hygrometer. Measuring dewpoint,temperature and relative humidity, the Optidew isinexpensive to purchase and easy to use. Featuresinclude: Dewpoint, temperature and RH measurement Range: -40 to +194 Fdp; to 100% RH Fundamental measurement principle Transmitter and digital display models available Single and two stage sensor options Analog and digital outputs; Alarm relay Accuracy: F dewpointSimple And EconomicalThe Optidew Dewpoint Hygrometer uses fundamentaloptical dewpoint measurement to provide drift-freelong-term performance.

2 It offers a wide measurementrange of -40 to +194 F dewpoint (or to 100% relativehumidity) at temperatures from -40 to +194 F. Optidewprovides two linear 4 - 20 mA outputs in addition to serialcommunication, allowing set-up and monitoring by asuitable computer or PLC system or via Optidew s ownlogging software. An adjustable dry alarm contact meansthat Optidew can be used for direct process Flexibility and Rugged DesignOptidew can be mounted in a variety of ways to suit theapplication direct in process, flange mounted, teemounted, or via an external sample line. A bench mountversion the Optidew Vision includes remote sensors,interconnecting cables, and a separate display unit mountedin a contemporary bench-top housing with an ergonomiccarrying handle.

3 No other hygrometer offers suchperformance and flexibility in a single package. Lowdewpoint capability, coupled with cable length of upto 800 feet (100 feet for Optidew -Bench unit) and apressure rating up to 3600 PSIG, make almost anyindustrial application possible. Three sensor versions areavailable: single stage, two stage and high three sensors are completely sealed to preventcontamination or corrosion of internal is sufficiently rugged to withstand most industrialconditions, while retaining the performance and sensitivity ofa high-level reference or calibration hygrometer.

4 The sensorincludes a corrosion-resistant, gold plated mirror and ruggedconstruction. The transmitter unit is NEMA 4 protected andsuitable for outdoor use. The temperature sensor is equallyrugged with its four wire 100 ohm mount transmitter with integral temperatureand dewpoint sensorsOptidew-BenchHygrometer with remote sensors, interconnectingcables and separate display Wells Road, Wethersfield, CT 06109(860) 529-8643 Fax: (860) 529-1895 INSTRUMENTS, Measurement RangeSingle and Dual StageModelsThe Optidew is available with a fixedor remote sensor together with wall,bench, panel, and flange mountprovisions giving great flexibilityto suit all applications.

5 All modelsfeature dewpoint and Mount Optidew WallTransmitter with Integral SensorOptidewOptidew Transmitter Remotewith Remote Sensor and 6-foot CableOptidewOptidew Transmitter Probewith Probe Type SensorOptidewBench Mount Optidew BenchHygrometer withmonitor, carryinghandle, remote sensor, and 6-foot cableMeasurement ReliabilityTo alleviate the problems ofmeasurement accuracy due tocontamination, Kahn Instrumentshas engineered a totally newcontamination compensationsystem for Optidew . DynamicContamination Correction (DCC)automatically eliminates any errorthat may be caused by mirrorparticulate contamination.

6 DCC isa self-learning system that adaptsitself to operating conditions,predicts and reacts to the realrequirements for contaminationcorrection to achieve optimumtransmitter performance at alltimes. Although the DCC systemis fully automatic, it can be userconfigured to accommodate yourown process is designed to satisfya wide range of industrial andlaboratory applications including: Industrial process control Environmental test chamber Air intake monitoring to gas turbine Engine test cell Furnace monitoring Calibration laboratoriesOptidew can be effectively deployedin any situation where precise andcontinuous measurement of thedewpoint or relative humidity ofa process is Type.

7 Sealed Optical (Chilled Mirror) Single stage, Two stage andHigh temperatureDewpoint Range:-22 to +194 F (single stage)-40 to +194 F (dual stage)-4 to +266 F (high temperature)Relative Humidity:2 to 100% (single stage) to 100% (dual stage)Accuracy: F dewpoint F dewpoint (optional)Operating Temperatures: Sensor: -40 to 194 FElectronics: -4 to +122 FOperating Pressure:Vacuum to 3600 PSIGR esolution:Analog and digital outputs: FDigital Display: FPower:90-264 VAC, 47-440 Hz, 20 WattsDimensions:Wall Mount Version:9"W x "H x 4"DRemote Sensor Version:9"W x 9"H x 4"DSensor: "L x " diameterProbe Type Version:10"W x "H x "D (max)Bench Mount "W x "H x "DWeight:Wall Mount Version: 7 poundsRemote Sensor Version: 8 poundsProbe Type Version: poundsBench Mount Version: poundsOptions:Sample blockLiquid cooled sample blockAir cooled heat sinkSensor guardWeatherproof cable pack19" rack kit ( Optidew -Bench)885 Wells Road, Wethersfield, CT 06109(860) 529-8643 Fax: (860) 529-1895 INSTRUMENTS, Rate (in Sample Block) to 4 SCFH ( to 2 l/min)Maximum Velocity.

8 33 feet/sec direct insertion 100 feet/sec with sintered guardOutputs:4-20 mA or 0-20 mA analogRS232 @9600 baud rateRS485 (optional)Alarms:Relay @120 VAC; 2A@30 VDC Optics status DP, RH, and T (User Settable)Enclosure Ingress Protection:NEMA 4 for transmitter modelsStatus LEDs:Power on, DCC, alarm statusCable length ( Optidew Remote andBench) 6 ft. standardUp to 800 ft. optional ( Optidew Remote)Up to 100 ft. optional ( Optidew Bench)Number 031904 Printed in USANOTE: The information included herein was correct at the time of publication and supercedes all previous data. It is our policy to continually improveour products to insure even better performance.

9 Consequently current Kahn products may incorporate modifications not shown on these pages.