Using the DPS Series Heated Dew Point/ Humidity Hygrometer

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1 ALICATION NOT 06_Nov DS ev sing the DS Series Heated Dew oint/ Humidity Hygrometer The DS series of heated chilled mirror hygrometers are designed to extract a gas sample from a heated process and measure its dew point. The DS is designed to measure dew point in the range of +9 C (0 F) to as low as - C (- F). ach model within the series consists of an optical chilled mirror hygrometer that is designed to continuously measure the moisture content of heated gases. The three models are the DS standard unit, the DS featuring the ability to measure and automatically compensate for pressure, and the DS deluxe unit that offers an advanced display, operational software and interface options. hy use a heated Hygrometer? hen the dew point temperature of a sampled gas is at a higher temperature than that of the sensing system, a condition of saturation or 00% elative Humidity will occur within the sensing system. This causes liquid water to form within the tubing and internal portions of the sensing system and utlimately causes a sytem failure. nder these conditions, reliable dew point reading are not possible. The solution to this problem is to heat all of the componenents of the sensing system to a temperature above the dew point temperature of the sampled gas. The DS series heated hygrometers have been specifically designed to solve this problem. The entire sampling system within each model including the chilled mirror sensor are heated. A heated sampling hose is provided to make connection to the process measuring point. The heated sensor allows the measurement of high dew points that are above ambient temperature. ithout the heated system condensation would occur and measurements could not be taken. The DS series uses the chilled mirror (C) dew point temperature condensation principle to determine the water vapor concentration in gas mixtures, and a precision platinum resistance thermometer to measure the mirror temperature. The C uses a thermo-electric device to control the temperature of the mirror in determining dew point. Since it is a direct measurement of dew point and thus a rimary Standard easurement Technique, the DS is highly regarded by pharmaceutical companies for monitoring fluidized beds, gas analysis laboratories, fuel cell testing facilities, air separation equipment, furnace operations and manufacturing facilities for its accuracy, quick dry down, fast response in detecting upset conditions and long life characteristics. ALICATIONS ood Veneer Drying Combustion rocesses Leakage testing: Nuclear eactors Fluidized Beds roduct Drying Chambers Bakeries xothermic rocess Chamber Fuel Cell Testing Furnace Applications harmaceutical owder Drying levated Temp rocess Chambers lastics/ olding rocess Chemical eactors Heat Treat/ Annealing Ovens Inc. 99 iver oad. Hudson. A. 079 ain: + (08) Fax:+ (08)

2 D Common to all DS odels: All standard dgetech DS models are designed for use with positive pressure sample gas. An vacuum pump option is available for sample extraction for near ambient pressure samples. The standard DS heated sampler includes a sample flow meter/valve, SS/ TF tubing and fittings, integrated heater and emergency thermal shutoff circuit all housed within an insulated NA enclosure. A ower ON- switch is located on the analyzer electronics enclosure. The sample inlet is equipped with an externally mounted VAC powered heated sample hose (/T) to ensure no vapors condense into the sampling lines. A sintered metal filter is provided within the heated enclosure to help prepare the sample gas for measurement. The NA painted steel enclosure is heated by an internal heater system and maintains a temperature above that of the sampled gas The temperature of the heated package is maintained by a control module located on the front panel of the electronics enclosure. The temperature may be adjusted via accessible buttons on the control module without the need to access the interior of the enclosure. An optional Loss of Sample Flow alarm is also available for all models to detect a clogged filter, malfunctioning pump or sample line blockage. DS: The DS heated chilled mirror hygrometer system includes an HTS heated stage sensor. This integrated system consists of two enclosures. An I6 plastic enclosure that includes a microprocessor based electronics is mounted to the door of the sampling system. Button access to the microprocessor electronics is available to enter the analyzer software setup. The door of the analyzer electronics enclosure must be opened to access the buttons. Changes may be The DS is configured with the HTS ( stage chilled mirror) dew point sensor designed for use in high temperature environments. D.7C Ts. C Tx. C X DS HATD DOINT SYST HATD SAL INLT HOS DS: Similar to the DS except this unit also includes pressure measurement and pressure-dew point compensation. A pressure transducer (rated for the heated environment) is mounted within the sampling system downstream of the sensor. ressure is displayed on the Digital Display and the option for automatic pressure compensation of Dew oint is available. The DS also provides front panel button access to initiate an Automatic ABC to compensate for mirror contamination plus a display button to scroll through viewing of measured parameters. Other features of the DS include analog outputs, relay alarm outputs, and serial interface. Sensor choices include the HTSx standard aluminum body or the HTX stainless steel body (for use with chemically aggressive sample gases). D 7.7 C ABC DS HATD DOINT SYST DISLAY HATD SAL INLT HOS Inc. 99 iver oad. Hudson. A. 079 ain: + (08) Fax:+ (08)

3 JAN 0 ::0 A SVOLOCK 7.0 C D.7 C AT 6. % H CHILLD IO HYGOT D C/F HAT Dewaster ABC COOL SC 0 NT SS NT FO N ABC DISLAY D D.7C Ts. C Tx. C X ON AC INT 9-0 VAC 0-60 HZ AD IN SA FS SIAL JAN 0 ::0 A SVOLOCK ABINT T. SS LAY LAY FAN O ANALOG OT ANALOG OT ANALOG OT C/F HAT ABC COOL SS NT FO N SNSO CABL DS: Same as the DS except the microprocessor system is replaced by an externally mounted Dewaster deluxe hygrometer. ressure measurement and compensation is optional. The Dewaster offers many features including programmable alarms (), analog outputs (), S- Serial Interface, a multi-line full feature display and keypad, troubleshooting and diagnostic control, as well as a full set of display functions. The Dewaster is connected to the sampling system via a -meterlong communications cable with a quick connection interface at the Dewaster. The DS HATD DOINT SYST Dewaster is standard as a table top unit or may be purchased in a NA enclosure. Sensor choices include the HTSx standard aluminum body or the HTX stainless steel body (for use with chemically aggressive sample gases). New, Cart Version: All three models in the DS series are available in a transportable cart version. This allows the DS model to be moved around within a facility to access a variety of process points. Includes portable steel frame cart with 0 foot (m) heated sampling hose with ¼ inch connector and a 0 foot power cord. ounting clips for the hose and power cord are supplied. O COD Temperature Control odlue HATD SAL INLT HOS Optional Flow Alarm Light O ON Optional Control Switches Sample xhaust Key Lock dgetech Instruments 7.0 C D.7 C AT 6. % H CHILLD IO HYGOT Dewaster A ANL O COD Dewaster SC 0 NT dgetech Instruments D 7.7 C DS HATD DOINT SYST DS HATD DOINT SYST DS HATD DOINT SYST Inc. 99 iver oad. Hudson. A. 079 ain: + (08) Fax:+ (08)

4 DS STANDAD FATS OTIONAL VAC HTS SNSO SL OTIONAL SITCH T TINAL BLOCK HATD SAL INLT HOS ANING DANG! DO NOT LAC HANDS ND LAT FILT SAL XHAST Chilled mirror sensor Sensor Temperature ange: 0 to 99 C (68 to 0 F) Dew oint ange: - to 9 C (- to 0 F) easurement Accuracy: ±0. C (±0. F) icroprocessor Controlled Dew oint and Temperature Displays ser rogrammable Temperature Controller Automatic Balance Control Integral Adjustable Flowmeter Two Available Alarm elays Selectable Analog Outputs, Serial S Output Sample Connection: ¼ inch Compression Fitting foot Heated Hose Supplied for sample input Sample ressure: p to 0psig VAC ower: 0 or 0VAC, 0/60Hz, 0 atts ST SCIFY VOLTAG odel Specific erformance Features DS: indow rotects ode/ Adjustment Buttons and Display, S- Serial access to menu DS: Offers ressure Dew oint easurement, Button Access anual ABC, and Viewing of arameters from the front panel. Operation settings may be configured at dip switches within the analyzer DS: Optional ressure Dew oint easurement and a Full Feature Alpha-Numeric Display and Keypad offers easy access to ser Friendly operations menu ADDITIONAL DS OTIONS Sample Flow Switch (ax temperature of enclosure is 0C) Sample Flow Alarm Lamp (ax temperature of enclosure is 0C) Vacuum ump BNFITS of the Chilled irror Sensor: liminate Dewoint sensor failures due to water condensation in sampling system Direct measurement method: recognized as a rimary Standard Technique Improve Sensor recision and Stability with our customized heated sampling system obust and Long Life: no moving parts, no consumable components Inc. 99 iver oad. Hudson. A. 079 ain: + (08) Fax:+ (08)

5 Sensor irror Choices Chilled irror Compatibility Chart Applications C Configuration General urpose Gases Acids Caustics Salts Organics Nuclear Application High Temperature Chrome lated Copper A D D C C D C 6 Stainless Steel A B B B B C B latinum A A A A A A A Teflon Coated Chamber A A A A A D D High ressure Chamber A N N N N N A A B C D N xcellent Very Good Good Not recommended Not ated TO OD TH DS series:. Select Base odel. Select Sensor Type: DS only available with the HTS. DS and DS available with HTSx standard aluminum body or the HTX stainless steel body (for use with chemically aggressive sample gases).. Select Sensor irror Type- Chrome (standard), Stainless Steel, or latinum. latinum is generally recommended for aggressive environments and for nuclear applications.. Select Options such as Vacuum ump. If you need to measure dew point at pressure, see the DS or the DS. List as separate line items : Accessories, Calibration ackages, and xtended arranty. DS- HTS SNSO TY IO TY OTIONS O CONTY DS SNSO TY IO TY OTIONS O CONTY DS SNSO TY IO TY OTIONS O CONTY Inc. 99 iver oad. Hudson. A. 079 ain: + (08) Fax:+ (08)

6 D ABC DISLAY D SL ON AC INT 9-0 VAC 0-60 HZ AD IN SA FS SIAL JAN 0 ::0 A SVOLOCK ABINT T. SS LAY LAY FAN O ANALOG OT ANALOG OT ANALOG OT C/F HAT ABC COOL SS NT FO N SNSO CABL DS OTIONS -FS Sample Flow Detection: Sample Flow Switch with SST Dry Contacts -FSL Sample Flow Detection: Sample Flow Switch Triggers ed Lamp Alarm -VH Vacuum ump to extract sample flow from process to the sensor -CAT Cart ount, specify model analyzer -0HOS xtended length sample hose, 0 foot long Y Year xtended arranty covers all repairs within the warranty statement YNIST calibrations for the price of (Dewoint) D.7C Ts. C Tx. C X OTIONAL VAC OTIONAL SITCH SAL XHAST DS HTS SNSO T ANING DANG! DO NOT LAC HANDS HATD DOINT SYST ND LAT FILT TINAL BLOCK HATD SAL INLT HOS HATD SAL INLT HOS Temperature Control odlue Optional Flow Alarm Light Optional Control Switches Sample xhaust Dewaster A ANL D 7.7 C Key Lock DS HATD DOINT SYST DS HATD DOINT SYST dgetech Instruments 7.0 C D.7 C AT 6. % H Dewaster SC 0 NT CHILLD IO HYGOT O COD HATD SAL INLT HOS O COD HATD SAL INLT HOS Inc. 99 iver oad. Hudson. A. 079 ain: + (08) Fax:+ (08)