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34-ST-03-57
ST 3000 Smart Transmitter
3/07
Series 900 Remote Diaphragm Seals Models
Specification and
STR93D 0 to 100 psid 0 to 7 bar
Model Selection
STR94G 0 to 500 psig 0 to 35 bar
Guide
Introduction
In 1983, Honeywell introduced the first
Smart Pressure Transmitter ― the ST
®
3000 . In 1989, Honeywell launched
the first all digital, bi-directional protocol
for smart field devices. Today, its
ST 3000 Series 900 Remote Seal
Transmitters continue to bring pr
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34-ST-03-57 Page 2 Description of Diaphragm Seals Diaphragm seals are traditionally used when a standard pressure transmitter should not be exposed to the process pressure directly. Diaphragm seals typically protect the pressure transmitter from one or more damaging aspects of the process media. Consideration for using a diaphragm seal should be made in the following circumstances. • High Process Temperature • Process Media is Viscous or Contains Suspended Solids • Process Media
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34-ST-03-57 Page 3 Description of Diaphragm Seals Figure 6 - Seals with Threaded Process Connections can be used with differential, gauge and absolute pressure transmitters and are available with ½”, ¾” and 1” NPT Female process connections. Figure 6 Figure 7 - Sanitary Seals can be used with differential, gauge and absolute pressure transmitters and are available with 3” and 4” Tri-Clover-Tri-Clamp process connections. Figure 7 Figure 8 - Saddle Seals can be us
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34-ST-03-57 Page 4 Figure 12 - Welded Meter Body for All-Welded Remote Seal Solution. The welded ST 3000 meter body is an important part of an All-Welded Remote Seal Solution, which is commonly used in Vacuum applications. Figure 12 Description Features • Choice of linear or square The ST 3000 transmitter can replace any 4 to 20 mA output transmitter in root output conformity is a use today and operates over a standard two-wire system. simple configuration select
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34-ST-03-57 Page 5 Specifications Operating Conditions – All Models Parameter Reference Rated Condition Operative Limits Transportation Condition and Storage (at zero static) °C °F °C °F °C °F °C °F Ambient Temperature 25 ±1 77 ±2 -25 to 70 -13 to 158 -40 to 85 -40 to 185 -55 to 125 -67 to 257 25 ±1 77 ±2 See Figure 13 -55 to 125 -67 to 257 Process Interface Temperature Humidity %RH 10 to 55 0 to 100 0 to 100 0 to 100 Maximum Allowable MAWP is minimum of Body Rating or Sea
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34-ST-03-57 Page 6 Maximum Pressure Limited by Flange Rating of Seal 10000 193 9000 psig 8000 7000 Silicone DC704 6000 5000 30 to 450°F 4000 3000 Silicone DC200 2000 -40 to 350°F 1000 900 1Atm 800 0 700 600 CTFE psig 500 5 to 300°F 400 -9 300 psig 200 100 90 80 70 Special High Vacuum 60 Construction required. 50 40 Consult STC. 30 20 Pressure (mmHgA) -14 10 psig 450 -40 175 350 52530 100 500 -100 0 200 300 400 Process Temperature (Degrees F) Maximum Pressure Limited by Flange Rating
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34-ST-03-57 Page 7 1440 1440 1200 1200 No Note: te: A A m miin niim mum um o off 250 250 oh ohms ms Lo Loop op 800 800 of of l loop r oop re esis sistta an nce i ce is s ne nec ce essa ssar ry y Re Resi sist stan anc ce e to to suppor supportt c co om mm mun unic icat ation ions s.. (o (ohm hms) s) 650 650 Loo Loop r p re esist sistan anc ce e equa equals ba ls bar rr rie ier r re resi sist stan ance p ce plu lus s w wiire re res resist istan anc ce e pl plus us r rec ece ei
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34-ST-03-57 Page 8 Performance Under Rated Conditions * - Models STR94G (0 to 500 psi/35 bar) Parameter Description Upper Range Limit psi 500 bar 35 Minimum Span psi 20 bar 1.4 Turndown Ratio 25 to 1 Zero Elevation and Suppression No limit except minimum span from absolute 0 (zero) to +100% URL. Accuracy (Reference – Includes In Analog Mode: ±0.10% of calibrated span or upper range value (URV), whichever is combined effects of linearity, greater, terminal based. hysteresis, and
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34-ST-03-57 Page 9 Physical and Approval Bodies Parameter Description Process Interface See Model Selection Guide for Material Options for desired Seal Type. Seal Barrier Diaphragm 316L Stainless Steel, Monel, Hastelloy C, Tantalum Seal Gasket Materials Klinger C-4401 (non-asbestos) Grafoil Teflon Gylon 3510 Mounting Bracket Carbon Steel (zinc-plated) or Stainless Steel angle bracket or Carbon Steel flat bracket available. Fill Fluid (Meter Body) Silicone (DC 200) S.G. @ 25°C (7
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34-ST-03-57 Page 10 Parameter Description Pressure Equipment Directive The ST 3000 pressure transmitters listed in this Specification have no pressurized (97/23/EC) internal volume or have a pressurized internal volume rated less than 1,000 bar (14,500 psig) and/or have a maximum volume of less than 0.1 liter. Therefore, these transmitters are either; not subject to the essential requirements of the directive 97/23/EC (PED, Annex 1) and shall not have the CE mark, or the manufacturer
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34-ST-03-57 Page 11 Application Data Liquid Level: Closed Tank Determine the minimum and Max maximum pressure differentials to LP be measured (Figure 17). Level P = (SG x a) - (SG x d) Min p f b = LRV when HP at bottom of tank Min = –URV when LP at bottom of HP tank a Level P = (SG x b) - (SG x d) Max p f ¥ Transmitter above datum = URV when HP at bottom of tank = –LRV when LP at bottom of tank Max LP Where: Level minimum level = 4mA maximum leve
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34-ST-03-57 Page 12 Density or Interface Calculate the minimum and maximum pressure differentials to be measured (Figure 18). P = (SG – SG ) x (d); min min f minimum density, 4mA output LP P = (SG – SG ) x (d); max max f maximum density, 20mA output Where: d = distance between the taps HP SG = maximum Specific max Gravity 24257 SG = minimum Specific Gravity min SG = Specific Gravity of capillary f Figure 18—Density, direct acting transmitt
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34-ST-03-57 Page 13 Reference Dimensions:millimeters Inches With 82.9 94.9 Removal Smart 3.6 3.26 3.74 Clearance Plug meter 0.14 for All Caps 53.1 65.1 135 2.09 2.56 with meter 45.7 5.32 Without Without 1.8 meter meter 55.3 2.18 23.5 .925 Optional Optional Meters Rotational external Lock ground LP seal omitted for clarity 67 2.64 93.6 3.69 STR93D DP/I Remote Seal with Horizontal Pipe Mount With 82.9 94.9 Removal Smart 3.6 3.26 3.74 Clearance Plug meter 0.14
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34-ST-03-57 Page 14 Reference Dimensions:millimeters Inches With 82.9 94.9 Removal Smart 3.26 3.74 Clearance 3.6 meter Plug for All Caps 53.1 0.14 65.1 135 with meter 2.09 2.56 5.32 45.7 Without Without meter meter 1.8 55.3 Seal 2.18 omitted for 23.5 clarity .925 LP seal Rotational Optional omitted for Lock Meters clarity Optional external ground 67 2.64 93.6 STR93D DP/I Remote Seal with Vertical Pipe Mount 3.69 With 82.9 94.9 Removal Smart meter 3.6 135 Plug 3.26 3.74 Clearance 0.
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34-ST-03-57 Page 15 Options Ordering Information Mounting Bracket We are in compliance with the Contact your nearest Honeywell sales The angle-mounting bracket is following SIL standards: office, or available in either zinc-plated IEC 61508-1: 1998; carbon steel or stainless steel and IEC 61508-2: 2000; In the U.S.: is suitable for horizontal or vertical IEC 61508-3: 1998 Honeywell mounting on a two-inch (50 NAMUR NE43 Compliance Industrial Automation & Control mil
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34-ST-03-57 Page 16 Model Selection Guide (34-ST-16-34) Instructions • Select the desired Key Number. The arrow to the right marks the selection available. • Make one selection from each table, I and II, using the column below the proper arrow. • Select as many Table III options as desired (if no options are desired, specify 9X). • A (•) denotes unrestricted availability. A letter denotes restricted availability. • Restrictions follow Table IV. I II III (Optional
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34-ST-03-57 Page 17 TABLE II - SEALS Format for Seal Selection: Specify 12 characters _ _ _ _ _ _ _ _ _ _ _ _ Availability Common Required Seal STR9xx Note: The first 3 characters are common to all seals. When selecting required seal, you must specify 3D 4G Selection only the 9 selections within the required seal. No Fill Fluid 0 _ _ _ _ _ _ _ _ _ _ _ 33 Silicone (DC 200) 1 _ _ _ _ _ _ _ _ _ _ _ •• CTFE 2 _ _ _ _ _ _ _ _ _ _ _ •• Secondary Fill Silicone (DC 704) 3 _ _ _ _ _ _ _ _ _ _ _ pp
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34-ST-03-57 Page 18 Availability STR9xx TABLE II - SEALS (continued) Description Selection 3D 4G Flushing None _ _ _ _ _ _ _ _ _ _ _ 0 •• Connections One 1/4" with plastic plug _ _ _ _ _ _ _ _ _ _ _ H 66 and Plugs** One 1/4" with metal plug _ _ _ _ _ _ _ _ _ _ _ J 66 Metal plug material 66 Two 1/4" with plastic plugs _ _ _ _ _ _ _ _ _ _ _ M Flush Flanged will be the same as Two 1/4" with metal plugs _ _ _ _ _ _ _ _ _ _ _ N 66 Seal Lower material, if One 1/2" with plastic plug _
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34-ST-03-57 Page 19 Availability STR9xx 3D 4G TABLE II - SEALS (continued) Diaphragm Lower Selection 316L SS 316 SS _ _ _ _ _ _ BA _ _ _ _ •• Hastelloy C 316 SS _ _ _ _ _ _ BB _ _ _ _ •• Hastelloy C Hastelloy C _ _ _ _ _ _ BC _ _ _ _ •• Wetted Material Monel Monel _ _ _ _ _ _ BE _ _ _ _ •• Tantalum 316 SS 11 _ _ _ _ _ _ BF _ _ _ _ Tantalum Hastelloy C _ _ _ _ _ _ BG _ _ _ _ 11 Tantalum Tantalum Clad _ _ _ _ _ _ BH _ _ _ _ 10 10 Upper Upper Insert Selection Non-Wetted Material 31
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34-ST-03-57 Page 20 STR9xx 3D 4G TABLE II - SEALS (continued) Diaphragm Flange Pressure Rating Dependent Flange Size Selection Diameter on Customer Flange ANSI Class 150/300/600 3.5" 3" _ _ _ GFA _ _ _ _ _ _ •• Diaphragm Body Selection 316L SS 316 SS _ _ _ _ _ _ GA _ _ _ _ •• Hastelloy C 316 SS _ _ _ _ _ _ GB _ _ _ _ •• Wetted Material Hastelloy C Hastelloy C _ _ _ _ _ _ GC _ _ _ _ •• Monel Monel _ _ _ _ _ _ GE _ _ _ _ •• a Tantalum Tantalum _ _ _ _ _ _ GG _ _ _ _ 11 Non-Wetted Materials No
