Ashcroft GC52 - Rangeable wet/wet Differential Pressure Tra Manual de usuario Pagina 1

Installation and MaintenanceInstructions for GC52Differential PressureTransmitterLOOK FOR THISAGENCY MARK ONOUR PRODUCTS© 2007 Ashcroft Inc. 250 East

10Terminal StripCableRequirements SMKDSP1.5/2-5.08 Phoenix Contact• Two core shielded cable• Cable outer diameter: 0.35˝ to 0.47˝ 9-12mm(Required for

11• Turn display over to expose terminal strip, make positive and negative connections, insert wire depth is equal to recommended strip length (0.25˝)

12• After completing connections locate retaining clips in the appropri-ate notches and carefully place into the housing. Be sure that inter-nal senso

13CH+CH–GC52In H2OM▼▲b Differential pressure unit monitorTest Terminalsd MODE keye DOWN keyf UP keyc Scaling - Arbitrary unit monitorh No f

149. MODE CHANGES• Measurement Mode (Section 11 for further detail) will be entered uponpower-on. Setting Mode (Section 13 for further detail) is ente

1511. MEASUREMENT MODEThe measurement mode includes differential pressure display mode, andlinear (scaling) display mode. For the setting items 햲 to 쎻

16䡵 Display and analog outputEx. Differential pressure of 8 inH2O• Differential pressure display: 8.00(H2O)• Analog output: 12(mA) in.H2O8.00Different

17Min. differential pressure P1and max. differential pressure P2setting ==> Setting item 햷, 햸OFFSET & FULL SCALE setting ==> Setting item 햹,

18For display mode, select “Linear display mode” ==> Setting item 햳Set min. differential pressure P1 as “20 in.H2O” ==> Setting item 햷Set max. d

1911.4 Out of Range Display(1) Range Over displayIn the Measurement Mode, if the pressure is below –15% F.S.(URL) “–FFF” will be displayed, and if it

2

20• Overage display-0.050-ffffff1.050–15%F.S. (–3.0 inH2O) more/less – 5%F.S. (–1.0 inH2O) more/less 115%F.S. (23.0 inH2O) more/less 105%F.S. (21.0 in

21No. Setting Item LCD Display Setting Description Setting Range Default*햲 Filter Selection of 0,2,4,8,16,sec 4moving averagetimeof differentialpressu

22non13.2 Setting Items for Linear Display Mode (Re-scaling in arbitrary user defined units) Set the filter before setting the linear display mode (Re

23(1) The decimal point position is fixed for each differential pressure range. (Refer to section10,Power-on Message). The maximum differential pressu

24uMuMuMuMuMuMuMuMuMuMuMuMuMuMuMuMabecdfghijklu 6.00f 2n nonn l na 10.0a 90.0[ 1.00[ 1.00p 20.0p 120.0d 1d 0.0d 50.0a 0.0a 100.0[

25CheckTerminals13.4 Loop CheckIn each display mode, regardless of applied pressure, the loop check canbe changed by arbitrarily linking the display w

26Dimension Drawings Dimensions in inches 1.04.49 3.622.912.28 4.725.12 1.972.36 .69 2 x Ø .06Drain4 x Ø .22Panel Mounting Holes Bracket t = .08Ø 2.56

2715. MAINTENANCE AND WARRANTY䡲 Periodic inspectionDepending upon the type of use periodic inspection is recommeded atleast once a year. Please refer

28© 2007 Ashcroft Inc. 250 East Main Street, Stratford, CT 06614 USATel: 203-378-8281, Fax: 203-385-0402, www.ashcroft.com All sales subject to standa

3CONTENTSCAUTION ... 4-51. PREFACE ...

4GENERAL:A failure resulting in injury or damage may be caused by excessiveoverpressure, excessive vibration or pressure pulsation, excessive in-strum

5USE IN LIFE SUPPORT DEVICESAshcroft Inc. products are not authorized for use as critical components in lifesupport devices or systems without the exp

6((5))Loop Check Function: Allows the user to output an analog signal cor-responding to differential pressure without applying pressure, simplify-ing

79. Units10. Setting Adjustments11. Enclosure12. Pressure Connection13. Electrical Termination14. Memory Protection15. EMC Directive16. Operating Temp

85. MOUNTING5.1 GeneralThe GC52 was designed to be mounted using the bracket supplied.Pressure connections via the (2) 1⁄4 NPT female pressure ports.

9(2) 1/4˝ NPTF1.4 (35).55 (14).83 (21)1.8 (45.4)1.0 (25.4)Hex .83 (21).33 (8.5)Equalizingvalve• 1.0 in. (25.4mm) mounting manifold6. PIPINGNote: High