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Содержание AUTOMATIONDIRECT DPTW Series

Страница 1: ...Installation and Maintenance Instructions for DPTW Series Differential Pressure Transmitter...

Страница 2: ...4 10 Power On Message 14 11 Measurement Mode 15 11 1 Filter Damping 15 11 2 Differential Pressure Display Mode Re scaling in inH20 units 15 11 3 Linear Display Mode Re scaling in arbitrary user define...

Страница 3: ...DPTW User Manual 1st Edition User Manual DPTW Differential Pressure Transmitter 3 15 Dimension Drawings 31 16 Maintenance and Warranty 32 17 Advanced Water Flow Rate and Volume Application Example 33...

Страница 4: ...lenoid valves Surges occur when flow is suddenly begun as when a pump is turned on at full power or a valve is quickly opened Liquid surges are particularly damaging to pressure transmitters if the pi...

Страница 5: ...column up to 400 inches water column with static line proof pressure of 300 psig and can easily be rescaled to a different linear pressure range and units of measure using display pushbuttons An inte...

Страница 6: ...in direct sunlight 4 Specifications Upper Range Limit URL For steam or other higher temperature processes ensure that the temperature at the DPTW process connections do not exceed the Medium Temperatu...

Страница 7: ...re Load Impedance 545 24VDC refer to Load Limitations graph Supply Voltage 12 32 Vdc Insulation Resistance 50Vdc 100 M EMC Compliance EMC Directive 2014 30 EU EN 61326 1 2013 EN 61326 2 3 2013 EMI Cla...

Страница 8: ...25 4mm Manifold 1 4 NPT female ports Manifold is secured using the 4 socket head bolts M4x40 and appropriate allen wrench which is supplied Check for dust and dirt on the O ring and seal area clean i...

Страница 9: ...igh pressure side of the applied differential pressure in the pressure inlet of the high pressure side H and the low pressure side in the pressure inlet of the low pressure side L Refer to the Dimensi...

Страница 10: ...power supply requirements and ground to housing Wiring Terminals Terminal Strip Cable Requirements SMKDSP1 5 2 5 08 Phoenix Contact Two core shielded cable Cable outer diameter 0 35 to 0 47 9 12mm Req...

Страница 11: ...insert wire depth is equal to recommended strip length 0 25 Terminal box Display board Shield Power source Receiver Transmission cable CASE DISPLAY COVER Inside sensor Line LCD holder Notch Transmiss...

Страница 12: ...maintain environmental rating Connect to power source and receiver and power on to confirm correct wiring see Section 10 for more detail Power Supply Requirements Although the 4 20mA signal can travel...

Страница 13: ...e linear scaling value are displayed When this unit monitor is ON the differential pressure inH2O is indi cated on the measured data display When this unit monitor is ON the scaling value of an arbitr...

Страница 14: ...ode to the Zero Adjustment Mode Section 12 for further detail press and hold the UP button for more than 3 seconds Power ON Power on message Measurement mode Setting mode Zero adjustment M key for mor...

Страница 15: ...ode is used for display and analog output of the actual differential pressure 1 Analog output The analog output can be adjusted as follows the zero point 4mA and the span point 20mA can each be adjust...

Страница 16: ...oint as 90 0 F S Setting item 11 3 Linear Display Mode Re scaling in arbitrary user defined units This mode is used for display analog output of the scaling value where the differential pressure is li...

Страница 17: ...pan point in this analog output is the linear display span Analog output zero point and span point setting Setting item As shown in the previous diagram usually the OFFSET is set as Output zero point...

Страница 18: ...sure 70 inH2O Linear display 25 0 cm Analog output 12 mA Differential Linear Analog Pressure Display Output inH2O cm mA 120 50 0 20 Span Point 20 0 0 4 Zero Point 70 25 0 12 11 4 Square Root Display M...

Страница 19: ...t can be set arbitrarily Setting of max momentary flow rate and then generated differential pressure Setting item When the display resolution lowers and the wobbling of momentary flow rate increases i...

Страница 20: ...our After power returns integration starts from the integrated volume value stored in the memory Integration is halted during the FFF display at the time of differential pressure range OVER Refer to p...

Страница 21: ...of integrated volume The following two settings must be made for integrated flow volume which will be displayed in Gallons times the selected weight flow factor of 1 Setting of time factor minute Set...

Страница 22: ...0 Zero Point 4 0 0 16 84 9 15 3 GPM The momentary flow rate Dx at the measured differential pressure of 16 inH2O 40 F S is calculated by the following formula The coefficient k is determined by substi...

Страница 23: ...lay span is at or greater than 105 F S Out of Range Display Example Differential pressure mode Differential pressure range 0 to 20 inH2O Pressure display span 20 inH2O Span point 20 0 Zero point 0 0 O...

Страница 24: ...o measurement mode Setting Mode M key greater than 3 sec LoC Return to measurement mode 14 Setting Mode The setting modes include differential pressure display mode setting linear display mode setting...

Страница 25: ...es sure range 10 to 110 F S Output zero point 1 100 0 Differential pressure of analog output span point 20mA 90 0 F S Differential pressure range 10 to 110 F S Output span point 1 0 0 4 00 mA Arbitrar...

Страница 26: ...tial pressure 0 0 cm 1999 to 1999 OFFSET 1000 FULL SCALE corre sponding to max differential pres sure 50 0 cm 1999 to 1999 FULL SCALE 0 0 Analog output zero point 4mA 0 0 F S Max display span 10 to 11...

Страница 27: ...rate vol ume factor Flow rate x time selected 1 10 100 1000 1 22 Display switch set ting Selectionofdisplayswitching methodofmomentaryflow rateandintegratedvolume ti automatic bt manual bt 23 Switch...

Страница 28: ...Min pressure Re scaling in inH2O units Re scaling in arbitrary user defined units Max pressure Decimal point position OFFSET FULL SCALE Output zero point Output span point Loop check span point Basic...

Страница 29: ...n Exam ft 4in Flow Rate Decimal Point Position 22 Display Switch Setting 23 Switch Time Interval 24 Loop Check Return to Setting Mode Refer to previous page Low Cut Output Span Point Time Factor M M M...

Страница 30: ...output 4mA are at the zero point when loop check starts 3 If the is pressed the display will increase along with the output By pressing key decrease will occur Release the key at the desired indicatio...

Страница 31: ...nches 1 0 4 49 3 62 2 91 2 28 4 72 5 12 1 97 2 36 69 2 x 06 Bleed Port 4 x 22 Panel Mounting Holes Bracket t 08 2 56 42 2 07 Bleed Port Set Screw Equalizing Valve High Pressure Port 1 4 NPT female Low...

Страница 32: ...llowing items for periodic inspection 1 Appearance 2 Display output check via appropriate pressure standard 3 Display output check via Loop Check refer to Section 14 5 CAUTION Avoid electrostatic char...

Страница 33: ...smitter can be purchased with several ranges for this application a transmitter with 0 to 40 inH2O pressure range has been selected As well an orifice plate with 2 40 bore an eight inch line diameter...

Страница 34: ...tegrated volume in gallons as the arbitrary units Proceed to scale down the transmitter range from 40 inH2O to 20 inH2O That is the maximum differential pressure equivalent to 88 GPM of water 20 mA Fo...

Страница 35: ...P 20 0 To enter the maximum di eren al pressure corresponding to the maximum ow rate 88 GPM This is the ori ce plate speci ca on value Press Up or Down arrow un l 20 0 is displayed That is the maximum...

Страница 36: ...rence corresponding to 20 mA The opera onal range is from 0 to 88 GPM of water Therefore 100 full span is selected as the span or 20 mA analog output Press UP or Down arrow un l 100 0 is displayed Tha...

Страница 37: ...ca on with the transmi er pressurized or non pressurized It simulates the process and allows for troubleshoo ng Press Up or Down arrow to change within transmi er range 0 to 88 GPM of water Press and...

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