Glass Tube Variable Area Flowmeter

Transcription

1 GT 1000 Series Models 1020, 1024, 1026, 1027 Design Specifications DS-GT 1000 April, 1997 (Supersedes issue dated December, 1996) Glass Tube Variable Area Flowmeter Wide choice of application-specific materials and connections Impervious O-ring seal construction for inline easy tube removal and maintenance Standard accuracy ±2% full scale (1% full scale optional) Wide choice of float types and capacity ranges Standard floats are interchangeable in tubes of given flowmeter size Connections rotatable 360 with horizontal or vertical inlet and outlet orientation Flange or NPT construction Polycarbonate window with UV inhibitor Detachable metal scale with scale lengths of 127 mm, 200 mm, and 250 mm Precision-bore, ribbed borosilicate glass metering tubes FM/CSA/NRTL/C Alarms for Div 1 - Intrinsic safety, and Div 2 DESCRIPTION The Brooks GT 1000 combines ruggedness and simplicity in design to provide a versatile glass tube flowmeter suitable for a wide range of applications. The GT 1000 O-ring construction minimizes process downtime by allowing for convenient in-line removal of the glass tube for cleaning and maintenance. SPECIFICATIONS 200 mm, 250 mm scale, rib guided tubes, standard float (Refer to Table 3, Sizes 7-13) All sizes with alarms (Refer to Table 4, Sizes 2-13) Accuracy Standard Flow Accuracy: ±2% Full Scale from 100% to 10% of scale reading Optional Flow Accuracy: ±1% of full scale from 100% to 10% of scale reading Repeatability 0.50% Full Scale Model GT 1000 Pressure Ratings Refer to Table 2 for maximum non-shock pressure. WARNING Do not operate this instrument in excess of the specifications below. Failure to heed this warning can result in serious personal injury and/or damage to the equipment. Capacity Ranges Liquid: 0.39 cc/min to 98.6 gpm Gas: 34.3 sccm to scfm Capacities and Pressure Drop Tables 127 mm scale, rib guided tubes, spherical float (Refer to Table 1, Sizes 2-6) Scales Standard: Detachable aluminum plate Nominal Lengths: 127 mm, 200 mm, and 250 mm Graduations: Choice of direct reading units, millimeter or percentage of maximum flow with factor tag Ambient Temperature Limits 33 F to 125 F (1 C to 52 C) Operating Fluid Temperature Limits Maximum: 250 F (121 C) for gas service, 200 F (93 C) for liquid service Minimum: 33 F (1 C) gas and liquid service

2 Materials of Construction Metering Tube Borosilicate glass Floats (Figure 1) Sizes 2 and 6 (spherical): Sapphire, tantalum, glass, Carboloy, 316 stainless steel Size 7 (spherical): Glass, 316 stainless steel or Monel Sizes 8-13: 316 stainless steel Float Stops Sizes 2, 6, 12, and 13: Teflon Sizes 7-10: 316 stainless steel Housing Standard Housing: Cast aluminum alloy with polyurethane paint Housing Options: Epoxy paint End Fittings 316 stainless steel, brass Window Polycarbonate with UV inhibitor O-rings Standard: Viton, Buna N, Kalrez Bolts 18-8 stainless steel Connections Standard: lbs, 300 lbs RF flanges per ANSI B NPT female connections Optional: - 125/175 RA flange finish - Flat faced flanges Connection Orientation Vertical or horizontal optional on inlets and outlets Meter Dimensions Refer to Figure 2 WARNING Glass metering tubes are designed for operation up to the maximum operating pressures and temperatures as specified herein. Due to the inherent brittle characteristics of glass and conditions beyond our control, tube breakage could result even within specified operating conditions. Do not use glass tube meters with fluids that are toxic, or chemically react with glass such as water above 140 F, steam, alkalis, fluorine, hydrofluoric acid, or molten metal. Failure to heed warning can result in serious personal injury and/or damage to the equipment. OPTIONAL EQUIPMENT (Alarms, Meter Mounting, Valves) Alarm Limit Switches Integral, single or dual alarms available. Reed switch design used on meters sizes Inductance-type alarm switches used on meters sizes 2 and 6. Up to two alarm switches can be installed to provide initiation of signal at preset flow values. Settings can be adjusted by repositioning the alarm switches. Alarm Certifications All alarms are FM (Factory Mutual) approved and CSA/NRTL/C* certified intrinsically safe (Exia) and CSA Enclosure 4X/FM NEMA 4X when installed according to Figures 6 and 7. *Canadian Standards Association (CSA)/Nationally Recognized Testing Laboratory (NRTL) accredited by the US Occupational Safety and Health Administration (OSHA). CSA, FM, UL, ETL are all currently approved NRTL test laboratories. Reed Switch Alarms Single or dual for meter sizes 7-13 Division 1, Class I, Groups A, B, C, D, Class II, Groups E, F, G, Class III. Required Accessories: Approved switch isolator/power supply (available from Brooks) or entity approved safety barrier. Entity parameters: Vmax 30V, Imax 100mA, Li=0, Ci=0. Division 2, Class I, Groups A, B, C, D, Class II, Groups E, F, G, Class III. Voltage and current limits are 140 Vac, 70 ma or 200 Vdc, 50 ma. Inductive Alarms Single or dual for meter sizes 2 and 6 Division 1, Class I, Groups A, B, C, D, Class II, Groups E, F, G, Class III. Required Accessories: Approved switch isolator/power supply (available from Brooks). Alarm Specifications: Ambient Temperature Limits 33 F to 125 F (1 C to 52 C) Operating Fluid Temperature Limits Reed Switch: Same as meter Inductive: 185 F (85 C) max. Reed Switch Limits - Non-hazardous Locations 140 Vac, 50/60 Hz. 200 Vdc 10 watts max. Alarm Hysteresis 8mm type (0.32 in) Alarm Dimensions and Wiring Diagrams Dimensions refer to Figures 3 through 5 (Alarm Dimensions) and Figure 6 (Switch Isolator). Wiring Diagrams refer to Figures 7 and 8. 2

3 Alarm Accessories Remotely mounted, switch isolator/power supplies are required for inductive alarms and recommended for reed switch alarms. One or two single-pole, double-throw (SPDT) relays are included with either 110 or 220 volt units. Meter Mountings Brackets for panel mounting flush or front of panel. Flange connections not recommended with panel mounting. Optional Valves Consult Factory Ordering Information and Model Code Refer to Table 5 Table 2 Pressure Ratings End Maximum Operating Pressure (psig)* Meter F Size Material (21 C) (93 C) (121 C) 2 Metal Metal Metal Metal Metal Metal Metal Metal * Maximum temperature rating for metallic end fittings is 250 F (121 C) gas service and 200 F (93 C) liquid service. Table 1 Capacities - Meter without Alarm 127mm Scale, Rib Guided Tube, Spherical Float MAXIMUM FLOW RATE SPHERICAL WATER TUBE FLOAT (cc/min.) AIR SIZE 2 GLASS sccm R AAAT SAPPHIRE sccm 316 SS sccm CARBOLY sccm TANTALUM sccm SIZE 2 GLASS sccm R AAT SAPPHIRE sccm 316 SS sccm CARBOLY sccm TANTALUM sccm SIZE 2 GLASS sccm R DT SAPPHIRE sccm 316 SS sccm CARBOLY ,003 sccm TANTALUM ,065 sccm SIZE 2 GLASS slpm R AT SAPPHIRE slpm 316 SS slpm CARBOLY slpm TANTALUM slpm SIZE 2 GLASS slpm R BT SAPPHIRE slpm 316 SS slpm CARBOLY slpm TANTALUM slpm SIZE 2 GLASS slpm R CT SAPPHIRE slpm 316 SS slpm CARBOLY slpm TANTALUM slpm SIZE 6 GLASS slpm R AT SAPPHIRE slpm 316 SS slpm CARBOLY slpm TANTALUM slpm SIZE 6 GLASS slpm R BT SAPPHIRE slpm 316 SS slpm CARBOLY 1, slpm TANTALUM 1, slpm NOTE: 316 SS AND CARBOLOY FLOAT CAPACITIES LISTED ABOVE CAN BE USED TO SIZE METERS WITH OPTIONAL INDUCTANCE-TYPE ALARMS TRADEMARKS Brooks... Brooks Instrument Division, Emerson Electric Co. Carboloy... General Electric Co. Fisher-Rosemount... Fisher-Rosemount Grp. of Companies Kalrez... E.I. DuPont de Nemours & Co. Managing The Process Better... Fisher-Rosemount Grp. of Companies Monel... Huntington Alloys, Inc. Teflon... E.I. DuPont de Nemours & Co. Viton... E.I. DuPont de Nemours & Co. 3

4 Table 3 Capacities 200mm, 250mm Scale, Rib Guided Tubes, Standard Float MAXIMUM FLOW RATES ( WATER EQUIVALENT) MAXIMUM FLOW RATES 14.7 psia and 70 F (21 C) METER PRESSURE VISCOSITY PRESSURE SIZE TUBE FLOAT DROP IMMUNITY DROP REQ. GPM LPM INCHES W.C. CEILING CS (**) SCFM SLPM INCHES W.C. psi (*) GLASS R-7M-25-1FT 316 SS MONEL RV RV RV RS M-25-4FT 8-RV RS RV RS LJ-48 **** RV RS R-9M-25-3FT 9-RV RS LJ-160 **** RV RS R-10M-25-3FT 10-RV RS LJ-238 **** RV *** RV R-12M-20-5FT 12-RV RS HF-455 **** *** LJ-740 **** RV RV-760A R-13M-20-3FT 13-RS RS-760A HF-758 **** *** LJ-1394 **** NOT INTENDED FOR GAS SERVICE (*) Minimum operating downstream pressure for gas service in PSIG. (**) Viscosity immunity ceiling listed is for stainless steel float, fluid specific gravity 1.0 (***) Consult factory for viscosity sizing. (****) Extended range - nonviscosity compensating floats. Table 4 Capacities 127mm, 200mm, 250mm Scale, Rib Guide Tubes, Alarm Floats MAXIMUM FLOW RATES (WATER EQUIVALENT) MAXIMUM FLOW RATES STP PRESSURE VISCOSITY PRESSURE METER DROP IMMUNITY DROP REQ. SIZE TUBE FLOAT GPM LPM INCHES W.C. CEILING CS(**) SCFM SLPM INCHES W.C. psi(*) 2 SEE NOTE 1 6 SEE NOTE 1 7-XV-11A R-7M-25-1FT 7-XS XS XV R-8M-25-4FT 8-XS XV XS R-9M-25-3FT 9-XV XS XV R-10M-25-3FT 10-XS XV , XS , XV , R-12M-20-5FT 12-XV , XS , XHF , XV , XV-760A , R-13M-20-3FT 13-XS , XS-760A , XHF , (*) Minimum operating downstream pressure for gas service (psig) (**) Viscosity immunity ceiling listed is for stainless steel float, fluid specific gravity 1.0 Note 1: All size 8-13 floats listed are 316 SS with integral magnet for use with reed switch alarm. Alarm option for sizes 2 and 6 requires metallic float (SS or carboloy) for use w ith inductive type alarm. 4

5 Spherical - Lowest meter capacity and no viscous fluids with medium capacity. READ HERE READ HERE Type LJ - Maximum flowmeter capacity with limited viscosity immunity. Spherical Type LJ Type RV (rib-guided) - Highest immunity to viscous fluids with medium meter capacity. (Most stable) Type RV (Rib-guided) READ HERE Type RS (Rib-guided) READ HERE Type RS (rib-guided) - High flow capacity with some immunity to viscous fluids. Figure 1 GT 1000 Floats (Descriptions refer to floats used in the same size tube) Model 1020 Horizontal NPT Model 1020 Horizontal Flange Model 1024 Vertical NPT Model 1024 Vertical Flange D D D D A B A B A A NOTE: All dimensions are shown in inches. E Meter Connection Model 1020 NPT or Flange (150lb.) Model 1024 Model 1024 All Size Size NPT Flanged (150lb.) Meters A B E A A D NPT Flange in/mm in/mm in/mm in/mm in/mm in/mm 2-6* 1/4 1/2 9.84/ / / / / /62 7** 3/4 1/ / / / / / /107 8** 3/4 1/ / / / / / /107 9** 3/ / / / / / /107 10** 3/ / / / / / /107 12*** 1-1/2 1-1/ / / / / / /150 13*** 1-1/2 1-1/ / / / / / /150 * 127mm scale length **250mm scale length ***200mm scale length Figure 2 GT 1000 Flowmeter Dimensions 5

6 Ref. KR Figure 3 Alarm Dimensions, Sizes 2 & 6 (Mounted to Model 1020) Ref. KR Figure 4 Alarm Dimensions, Sizes 7-10 (Mounted to Model 1020) 6

7 Figure 5 Alarm Dimensions, Sizes 12 & 13 (Mounted to Model 1020) Ref. KR

8 Intrinsically Safe Switch Isolator for Div. 1, Class I, III, III, Groups ABCD Models WE77/Ex1, WE77/Ex2 120 Vac Supply, Single Channel, (1) SPDT Relay, Part No. 029 Z 047 ZZZ 120 Vac Supply, Dual Channel, (2) SPDT Relays, Part No. 029 Z 048 ZZZ 220 Vac Supply, Single Channel, (1) SPDT Relay, Part No. 029 Z 049 ZZZ 220 Vac Supply, Dual Channel, (2) SPDT Relays, Part No. 029 Z 050 ZZZ Supply Voltage Tolerance: +10%-15%, Hz Isolation: The Supply, Switch Input, and Relay Output are isolated. Power Consumption: approx. 3.5 VA Terminals accept 16 AWG maximum Switch Input: Intrinisically Safe, 8 Vdc Open Circuit, 8 ma Short Circuit Relay Outputs, AC: Max Voltage 250 Vac, Max Current 4 A, Max Power 500 VA DC: 110 V at 0.2 A, 60 V at 0.6 A, 24 V at 4.0 A FM File: 0V5H3.AX CSA File: LR03087 Changing the Mode of Operation Single Channel Dual Channel Mode of Jumper at Jumper at Operation Terminals Terminals A-Mode 3 and 4 2&3, 7&8 R-Mode 4 and 5 3&4, 8&7 Mode Chart Alarm Mode Relay LED CAM or Switch Engaged Off Off SW - Open A Removed On On SW - Closed Engaged On On SW - Open Removed R Off Off SW - Closed Input Switch or Sensor 1 2 (+) (-) (+) Safe Area WE77/Ex1 Single Channel } Relay Output AC } Supply Front View Single Channel Rear View Input Switch or Sensor Input Switch or Sensor (-) (+) (+) (-) Safe Area WE77/Ex2 Dual Channel } } Relay Output #1 Relay Output #2 } AC Supply Front View Dual Channel Rear View Inches mm Figure 6 Dimensions and Specs, Intrinsically Safe Switch Isolators 8

9 Ref. KR-981-Z-986 Figure 7 Alarm Wiring Diagram, Reed Switch & Inductive Alarm with agency approved Power Supply/Relay Isolator Figure 8 Alarm Wiring Diagram, Reed Switch with Customer Supplied Barrier Ref. KR-981-Z-986 9

10 Table 5 Model GT 1000 Ordering Information and Model Code APPROXIMATE WEIGHTS (ALL UNITS ARE IN POUNDS) NPT CONNECTIONS FLANGED CONNECTIONS METER METER SHIPPING METER SHIPPING SIZE ONLY WEIGHT ONLY WEIGHT 2 TO AND CODE GT 1000 MODEL CODE 102 INDUSTRIAL GLASS TUBE VARIABLE AREA FLOWMETER CODE CONNECTION ORIENTATION 0C INLET-HORIZONTAL/OUTLET-HORIZONTAL 4C INLET-VERTICAL/OUTLET-VERTICAL 6C INLET-HORIZONTAL/OUTLET-VERTICAL 7C INLET-VERTICAL/OUTLET-HORIZONTAL CODE SIZE TUBE NPT FLANGE A SIZE 2 R AAAT 1/4" 1/2" B SIZE 2 R AAT 1/4" 1/2" C SIZE 2 R DT 1/4" 1/2" D SIZE 2 R AT 1/4" 1/2" E SIZE 2 R BT 1/4" 1/2" F SIZE 2 R CT 1/4" 1/2" G SIZE 6 R AT 1/4" 1/2" H SIZE 6 R BT 1/4" 1/2" J SIZE 7 R-7M-25-1FT 3/4" 1/2" K SIZE 8 R-8M-25-4FT 3/4" 1/2" L SIZE 9 R-9M-25-3FT 3/4" 1" M SIZE 10 R-10M-25-3FT 3/4" 1" N SIZE 12 R-12M-20-5FT 1 1/2" 1 1/2" P SIZE 13 R-13M-20-3FT 1 1/2" 1 1/2" CODE SIZE 2 SIZE 6 SIZE 7 SIZE 8 SIZE 9 SIZE 10 SIZE 12 SIZE 13 FLOAT DESIGNATOR 1 GLASS GLASS GLASS 2 SAPPHIRE SAPPHIRE SS 316 SS 316SS 4 CARBOLY CARBOLY 5 TANTALUM TANTALUM 6 MONEL A 8-RV-2 9-RV RV RV RV-510 B 8-RV-3 9-RS RS RV RS-510 C 8-RV-8 9-RV RV RV RV-760A D 8-RS-8 9-RS RS RS RS-760A E 8-RV-14 9-LJ LJ HF HF-758 F 8-RS LJ LJ-1394 G 8-RV-31 H 8-RS-31 J 8-LJ SS FLOATS FOR USE WITH ALARM (SIZE 8-13) N 7-XV-11A 8-XV XV XV XV-510 P 7-XS-15 8-XS XS XV XS-510 Q 7-XS-23 8-XV-31 9-XV XV XS XV-760A R 8-XS-31 9-XS XS XHF XS-760A S 13-XHF-758 CODE CONNECTION TYPE 1 NPT 2 ANSI 150 LB RF 3 ANSI 300 LB RF 102 4C M D 1 J91A AAA TYPICAL MODEL CODE 10

11 Table 5 Model GT 1000 Ordering Information and Model Code Continued GT 1000 MODEL CODE (CONTINUED) CODE SCALE-RIGHT HAND FROM VIEWING POSITION 9 NO SCALE REQUIRED AT THIS POSITION A NO INSCRIPTION( BLANK SCALE) B MILLIMETER SCALE C PERCENT OF MAXIMUM FLOW (GAS) D PERCENT OF MAXIMUM FLOW (LIQUID) E LITERS PER MINUTE STP F GALLONS PER MINUTE WATER, SPECIFIC GRAVITY 1.0, VISCOSITY 1.0 cp G LITERS PER MINUTE WATER, SPECIFIC GRAVITY 1.0, VISCOSITY 1.0 cp H SCFM STP J SPECIAL INSCRIPTION- NO SPECIAL CALIBRATION REQUIRED K SPECIAL CALIBRATION 2% FULL SCALE ACCURACY FOR AIR/GAS SERVICE L SPECIAL CALIBRATION 2% FULL SCALE ACCURACY FOR WATER/LIQUID SERVICE M SPECIAL CALIBRATION 2% FULL SCALE ACCURACY FOR VISCOSITY N SPECIAL CALIBRATION 1% FULL SCALE ACCURACY AIR/GAS P SPECIAL CALIBRATION 1% FULL SCALE ACCURACY WATER/LIQUID Q SPECIAL CALIBRATION 1% FULL SCALE ACCURACY FOR VISCOSITY CODE SCALE- LEFT HAND FROM VIEWING POSITION 9 NO SCALE REQUIRED AT THIS POSITION A NO INSCRIPTION( BLANK SCALE) B MILLIMETER SCALE C PERCENT OF MAXIMUM FLOW (GAS) D PERCENT OF MAXIMUM FLOW (LIQUID) E LITERS PER MINUTE STP F GALLONS PER MINUTE WATER, SPECIFIC GRAVITY 1.0, VISCOSITY 1.0 cp G LITERS PER MINUTE WATER, SPECIFIC GRAVITY 1.0, VISCOSITY 1.0 cp H SCFM STP J SPECIAL INSCRIPTION- NO SPECIAL CALIBRATION REQUIRED K SPECIAL CALIBRATION 2% FULL SCALE ACCURACY FOR AIR/GAS SERVICE L SPECIAL CALIBRATION 2% FULL SCALE ACCURACY FOR WATER/LIQUID SERVICE M SPECIAL CALIBRATION 2% FULL SCALE ACCURACY FOR VISCOSITY N SPECIAL CALIBRATION 1% FULL SCALE ACCURACY AIR/GAS P SPECIAL CALIBRATION 1% FULL SCALE ACCURACY WATER/LIQUID Q SPECIAL CALIBRATION 1% FULL SCALE ACCURACY FOR VISCOSITY CODE END FITTING MATERIAL STAINLESS STEEL 2 BRASS CODE O-RING MATERIAL A VITON B BUNA C KALREZ J 9 1 A AAA TYPICAL MODEL CODE 11

12 Table 5 Model GT 1000 Ordering Information and Model Code Continued GT 1000 MODEL CODE (CONTINUED) CODE ACCESSORIES (SELECT UP TO 3) A NONE B ALARM: 1 SWITCH, CUSTOMER TO SUPPLY RELAY/POWER FM/CSA CERTIFIED INT. SAFE C ALARM: 2 SWITCHES, CUSTOMER TO SUPPLY RELAY/POWER FM/CSA CERTIFIED INT. SAFE D ALARM: 1 SWITCH, 1 RELAY-220 Vac FM/CSA CERTIFIED INT. SAFE E ALARM: 2 SWITCHES, 2 RELAYS-220 Vac FM/CSA CERTIFIED INT. SAFE F ALARM: 1 SWITCH, 1 RELAY-110 Vac FM/CSA CERTIFIED INT. SAFE G ALARM: 2 SWITCHES, 2 RELAYS-110Vac M FLUSH PANEL MOUNTING HARDWARE * N FRONT OF PANEL MOUNTING HARDWARE P EPOXY COATING OF CHASSIS Q NO BROOKS IDENTIFICATION R SPECIAL CUSTOMER IDENTIFICATION S DEGREASE FOR OXYGEN SERVICE (PER J-834-Z-169) T CERTIFIED FOR NIST TRACEABILITY U PER NACE SPEC (MR-01-75) V 125 AARH FLANGE FINISH W FLAT FACE FLANGE X STAINLESS STEEL BEZEL FOR FLUSH PANEL MOUNTING #25 (SIZE 12 & 13 ONLY) 1024CMD1J91A AAA TYPICAL MODEL CODE * CONSULT FACTORY FOR BEZELS AND COVERS IF REQUIRED ISO 9001 QUALITY SYSTEM Certificate of Conformity The Quality System at Brooks Instrument conforms to the quality standards set forth in ISO Specifications Subject to Change Without Notice 12