SF72 Dew-Point Transmitter

1 Humidity and Dew-Point InstrumentsPlease note: michell Instruments adopts a continuous development program which sometimes necessitates specification changes without notice. Please contact us for latest version. No: SF72_97324_V2_UK_0513SF72 Dew-Point TransmitterThe SF72 Dew-Point Transmitter is a compact sensor designed for use in industrial dryer applications at the key -40 to +10 Cdp measuring points, where response speed, reliability and long term stability of data within a control process is Transmitter is pressure rated to 450 bar, ensuring process gas safety, through the use of a 10-year field-proven stainless steel body and glass-to-metal seal.

2 The SF72 has three alternative industry-standard sample block connections giving form, fit & function polymer based sensor is calibrated on a high volume traceable calibration system, providing OEM quantities of units, each with an 8-point traceable calibration certificate. Highlights Ideal for membrane and refrigeration dryer use Compatible with Compressed Air Quality Class2 to 6 requirements Dew point measurement range -50 to +60 Cdp Fast response Rugged 316 stainless steel IP66 construction 8-Point traceable calibration certificate Accuracy 2 Cdp G 1/2 BSP, 3/4 and 5/8 UNF process connectionsTechnical SpecificationsPerformanceMeasurement range (dp)-60 to +60 C dew point Accuracy (dp)

3 2 C dew pointRepeatability C dew pointLong term stabilityLess than 1% per year at reference conditionsCalibrationTraceable 8-point calibration certificateElectrical SpecificationsOutput signal4-20 mA (2-wire connection, current source) OutputDew pointAnalog output scaled rangeStandard -60 to +60 C-50 to +50 C -50 to +30 CNon-standard available upon request Supply voltage12-28 V DCLoad resistanceMax 250 @ 12 V (500 @ 24 V)CE markedCertifiedOperating SpecificationsOperating temperature-40 to +60 C Operating pressure45 MPa (450 barg) maximumOver pressure ratingx2 operating pressure 90 MPa (900 barg)Flow rate1 to 5 Nl/min mounted in standard sampling block.

4 0 to 10 m/sec (0 to fps) direct insertionThermal compensationCharacterized over operating rangeMechanical SpecificationsIngress protectionIP66 in accordance with standardBS EN 60529:1992 NEMA 4 in protection accordance with standard NEMA 250-2003 Housing material316 Stainless steelDimensionsL=132mm (incl. connector & HDPE Filter) x 27mm FilterStandard HDPE Guard <10 mOptional Sintered guard 80 m Process connections and materialG 1/2 BSP, 3/4 - 16 UNF, 5/8 - 18 UNF316 Stainless steelWeight150gElectrical connectionsHirschmann GDS series (DIN 4350-C)Digital diagnostic communicationsRS485, 2-wire Modbus RTUD imensions A/F30mm5/8 -18 UNF,3/4 - 16 UNF,G 1/2 BSP1/8 NPT 5/8 -18 UNF,3/4 - 16 UNF,G 1/2 BSP1/8 NPTS ample Block (optional) 33 15, 703 ( 3 , ).

5 02)2636-0009( ) : 02)2636-4753 : : : and Dew-Point Instruments michell Instruments 2013132mm( )46mm( )10mm( )G1/2 BSP10mm( ) 27mm( ) 27mm( ) A/F45mm( ) G1/2 BSP Bonded Seal x ( x )SF72 Accessories and Spare PartsProcess Connection SizeG 1/2 3/4 5/8 Sensor ProtectorsPack of 10 replacement HDPE guards for protection against fine particulate <10 mEA2-HDPEEA2-HDPEEA2-HDPES tainless steel sintered guard replacement for protection against fine particulate <80 mSSGSSGSSGPack of 10 particulate filter cartridges for protection against fine particulate <25 m (for Sampler kits)

6 SSF-PF-10 PKSSF-PF-10 PKConnection Adaptors3/4" -16 UNF to 5/8" UNF adaptorAPT-PANG 1/2" BSP to 5/8" UNF adaptorAPT-GEI1/2" NPT to 5/8" UNF adaptorAPT-TSOS ampling BlocksG 1/2 316 Stainless steel sample block (with 1/8" NPT inlet & outlet ports)SB-12G 1/2 316 Stainless steel sample block with filter (with 1/8 BSP and 1/4 BSP ports)A000351SS 3/4 sample block with filter (with 1/8 BSP and 1/4 BSP ports)SB-345/8 316 Stainless steel sample block (with 1/8 NPT inlet & outlet ports)CSB5/8 Sampler kit- For atmospheric or pressure dp measurements (145 psig / 10 barg max)EA2-SAM 5/8 HP sampler kit For atmospheric or pressure dp measurements (2900 psig / 200 barg max)EA2-SAM-HPOther PartsPTFE sample tube 6mm ( ") outside diameter, thick-walled (for sampler kit) (price per meter- above ) galvanic isolator (Pepperl & Fuchs)GI-PF-01GI-PF-01GI-PF-01 Additional/replacement Transmitter labels (2 Labels)

7 GEN-LABELGEN-LABELGEN-LABELS ensor connectorEA2-SCEA2-SCEA2-SCO-rings/Bonde d seals for process connection pack of 5BS-12-PK5OR-34-PK5BS-58-PK5 Electrical Connections 4-20 mA connections 2-wirePin 14-20 mA Pin 3 POWER Ordering Codes To construct the order code, select the relevant feature from the tables below, starting with the base model, which is {Feature A} and then add on options to create a string: {Feature A} + {Feature B} + {Feature C} + {Feature D}Order example: SF72-TX+B1+C2+D1SF72 Transmitter , 2-wire, 4-20 mA output, G 1/2 BSP, measurement range -50 to +50 Cdp.

8 HDPE guard SF72-TXB1C2D1 Range {Feature C}-60/+60 Cdp output scaled 4-20 mA rangeC1-50/+50 Cdp output scaled 4-20 mA rangeC2-50/+30 Cdp output scaled 4-20 mA rangeC3 Protection {Feature D}Standard HDPE guardD1SS sintered guardD2 Base Model {Feature A}SF72 TransmitterSF72-TXType {Feature B}G 1/2 BSP process connectionB13/4 UNF - 16 process connectionB25/8 UNF - 18 process connectionB3G 1/2 Process ConnectionDimensions3/4 Process Connection5/8 Process Connection132mm( )46mm( )10mm( )10mm( ) 27mm( ) A/F45mm( ) 27mm( )3/4 UNF 3/4 O-Ring x ( x )132mm( )46mm( )10mm( )5/8 UNF10mm( ) 27mm( ) 5/8 Bonded Seal x 2mm( 1 x )27mm( ) A/F45mm( ) 33 15, 703 ( 3 , ) : 02)2636-0009( ) : 02)2636-4753.