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34-ST-03-64
ST 3000 Smart Transmitter
2/08
Series 100 Remote Diaphragm Seals Models
Specification and
STR12D 0-10 to 0-400 inH O 0-25 to 0-1000 mbar
2
STR13D 0-5 to 0-100 psid 0-0.35 to 0-7 bar
Model Selection
STR14G 0-5 to 0-500 psig 0-0.35 to 0-35 bar
STR17G 0-100 to 0-3000 psig 0-7 to 0-210 bar
Guide
STR14A 0-5 to 0-500 psia 0-0.35 to 0-35 bar
Introduction
In 1983, Honeywell introduced the first
Smart Pressure Transmitter
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34-ST-03-64 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-03-64 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
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34-ST-03-64 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 root The ST 3000 transmitter can replace any 4 to 20 mA output output conformity is a simple transmitter in use today and operates over a standard two-wire configuration selection.
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34-ST-03-64 Page 5 Specifications Operating Conditions – All Models Parameter Reference Condition Rated Condition Operative Limits Transportation and Storage °C °F °C °F °C °F °C °F Ambient Temperature * 25 ±1 77 ±2 — — — — –55 to 90 –67 to 194 Humidity % RH 10 to 55 0 to 100 0 to 100 0 to 100 Maximum Allowable MAWP is minimum of Body Rating or Seal Rating (See Model Selection Guide for Seal Working Pressure (MAWP) MAWP) Body MAWP STR12D 2500 psig (17
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34-ST-03-64 Page 6 Performance Under Rated Conditions * - Model STR12D (0-10 to 0-400 inH O) 2 Parameter Description Upper Range Limit ** inH2O 400 (39.2°F/4°C is standard reference temperature for inH O range.) 2 mbar 1000 Minimum Span inH2O 10 Note: Recommended minimum span in square root mode is 20 inH O (50 mbar). 2 mbar 25 Turndown Ratio 40 to 1 Zero Elevation and Suppression No limit except minimum span within ±100% URL. Accuracy (Reference – Includes In Analog Mode: ±0.2
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34-ST-03-64 Page 7 Performance Under Rated Conditions * - Model STR13D (0-5 to 0-100 psid) Parameter Description Upper Range Limit ** psid 100 bar 7 Minimum Span psid 5 bar 0.35 Turndown Ratio 20 to 1 Zero Elevation and Suppression No limit except minimum span within –18% and +100% of URL. Specifications valid from –5% to 100% of URL. Accuracy (Reference – Includes In Analog Mode: ±0.1% of calibrated span or upper range value (URV), whichever is combined effects of linearit
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34-ST-03-64 Page 8 Performance Under Rated Conditions * - Model STR14G (0-5 to 0-500 psig) Parameter Description Upper Range Limit ** psig 500 bar 35 Minimum Span psig 5 bar 0.35 Turndown Ratio 100 to 1 Zero Elevation and Suppression No limit except minimum span from absolute zero to 100% of URL. Specifications valid over this range. Accuracy (Reference – Includes In Analog Mode: ±0.1% of calibrated span or upper range value (URV), whichever is combined effects of linearity, g
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34-ST-03-64 Page 9 Performance Under Rated Conditions * - Model STR17G (0-100 to 0-3000 psig) Parameter Description Upper Range Limit ** psig 3000 bar 210 Minimum Span psig 100 bar 7 Turndown Ratio 30 to 1 Zero Elevation and Suppression No limit except minimum span from absolute zero to 100% of URL. Specifications valid over this range. Accuracy (Reference – Includes In Analog Mode: ±0.15% of calibrated span or upper range value (URV), whichever is combined effects of line
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34-ST-03-64 Page 10 Performance Under Rated Conditions * - Model STR14A (0-5 to 0-500 psia) Parameter Description Upper Range Limit ** psia 500 bar absolute 35 Minimum Span psia 5 bar absolute 0.35 Turndown Ratio 100 to 1 Zero Elevation and Suppression No limit except minimum span from 0 to 100% URL. Accuracy (Reference – Includes In Analog Mode: ±0.1% of calibrated span or upper range value (URV), whichever is combined effects of linearity, greater. hysteresis, and repeata
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34-ST-03-64 Page 11 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-Chromate plated) or Stainless Steel. Fill Fluid (Meter Body) Silicone (DC 200) S.G. @ 25°C = 0.94 CTFE (Chlorotrifluoroethylene) S.G. @ 2
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34-ST-03-64 Page 12 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-03-64 Page 13 Figure 15—ST 3000 Remote Seals operable limits for pressure vs. temperature.
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34-ST-03-64 Page 14 1440 1440 1200 1200 Not Note e: A : A minimu minimum m of of 2 25 50 o 0 oh hms ms Loop Loop 800 800 of of loop r loop re esist sistan ance is n ce is ne ece cessa ssary ry Re Resi sistan stanc ce e to to suppo suppor rtt co com mm mun uniicat catiion ons. s. (ohm (ohms) s) 650 650 Loop r Loop re esist sistan ance ce equa equals ba ls bar rr riie er r r re esistance plus w sistance plus wiir re e resistanc resistance e plus rec plus rece eiver resista iver re
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34-ST-03-64 Page 15 Application Data* Max Level LP Liquid Level: Closed Tank Determine the minimum and maximum pressure differentials to be measured (Figure 18). b P = (SG x a) – (SG x d) Min p f Min = LRV when HP at bottom HP Level of tank a = –URV when LP at bottom of tank Transmitter above datum P = (SG x b) – (SG x d) Max p f = URV when HP at bottom of tank Max LP = –LRV when LP at bottom Level of tank Where: b Minimum level at 4 mA Maximum leve
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34-ST-03-64 Page 16 Density or Interface* Calculate the minimum and maximum pressure differentials to be measured. P = (SG - SG ) x (d); min min f LP minimum density, 4mA output P = (SG - SG ) x (d); max max f maximum density, 20mA output Where: HP d = distance between the taps 24257 SG = maximum Specific max Gravity SG = minimum Specific min Gravity SGf = Specific Gravity of capillary fill fluid (see page 11 for values) Figure 19—Dens
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34-ST-03-64 Page 17 82.9 94.9 With Smart meter With Analog 3.26 3.74 meter 53.1 65.1 3.6 135 Reference Removal 45.7 2.09 2.56 5.32 0.14 Without Without Clearance 1.8 Dimensions: meter meter Plug for All Caps millimeters 55.3 inches 2.18 Optional meters 23.5 .925 Rotational Optional external STR12D, STR13D lock ground DP/I Remote Seal LP seal with Horizontal omitted for Pipe Mount clarity 85 3.35 42.5 50 1.97 1.67 82.9 94.9 With Smart meter With Analog meter 3.26 3.74 53
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34-ST-03-64 Page 18 82.9 94.9 With Smart meter With Analog 3.26 3.74 meter 53.1 65.1 Reference 3.6 135 Removal 45.7 2.09 2.56 Dimensions: 5.32 0.14 Without Without 1.8 Clearance meter meter Plug millimeters for All Caps inches 55.3 2.18 Optional meters 23.5 .925 LP seal Rotational omitted Optional external lock for clarity ground STR12D, STR13D 85 DP/I Remote Seal 3.35 with Vertical SQ Pipe Mount 50 42.5 1.97 1.67 82.9 94.9 With Smart meter With Analog 3.26 3.74 meter
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34-ST-03-64 Page 19 Options Ordering Information Mounting Bracket NAMUR NE43 Compliance Contact your nearest Honeywell sales The angle mounting bracket is (Option NE) office, or available in either zinc-plated This option provides software the carbon steel or stainless steel and meets the NAMUR NE43 In the U.S.: is suitable for horizontal or vertical requirements for failsafe software. Honeywell mounting on a two inch (50 Transmitter failure information is Industrial
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34-ST-03-64 Page 20 Model Selection Guide (34-ST-16-32) Model Selection Guide 34-ST-16-32 Issue 39 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 or approvals are desired, specify 9X). ● A ( ●) denotes unrestricted availability. A letter denotes restricted availability.
