264 Data Sheet
3
800-257-3872 159 Swanson Rd., Boxbo rough, MA 01719/Telepho ne: 978-263-1400/Fax: 978-264-0292 U.S. Patent nos. 4093915; 4358814; 4434203; 6019002; 6014800. Other Patents Pending. Model 264 Very Low Differential Pressure Transducer Unidirectional Ranges: 0 - 0.1 to 0 - 100 in. W.C. Bidirectional Ran ges: 0 - ±0.5 to 0 - ±50 in. W.C. Air or Non-Con ucting Gas NOTE: Setra quality standards are based on ANSI-Z540-1. The calibration of this product is NIST traceab le. Visit Setra Online: http://www.setra.com The Mod el 264 uti liz es an imp rov ed all s ta in e ss stee micr o-t ig we e se ns or . T e te n si one s ta in e s s stee iap ragm an insulated stainless steel electrode, positioned close to the diaphragm, form a variable capacitor. Positive pressure moves t e diaphragm toward the electrode, increas- ing the capacitance. A decrease in pres- sure moves t e iap ragm aw ay rom t e electrode, decreasing the capaci tance. The change in capacitance is detected and converte to a inear DC e ect ric a signa y Setra’s unique e ectronic circ uit. T e tensione sensor a ows up to 10 PSI overpressure (ra nge epen ent) wi t no damage to the unit. In addition, the parts that ma e up t e sensor ave t erma y matc e coefficients, which promote improved temperature performance and excellent long te rm sta iit y. Applications ● Heating, Ventilating and Air Conditioning (HVAC) ● Energy Management Systems ● Variable Air Volume and Fan Control (VAV) ● Environmenta l Pollution Control ● Lab and Fume Hood Control ● Oven Pressurization and Furnace Draft Controls Features ■ Up to 10 PSI Overpressure (Range Dependent) ■ Installation Time Minimized with Snap Track Mounting and Easy- To- Access Pressure Ports and Electrical Connections ■ 0 to 5 VDC or 2-wire 4 to 20 mA Analog Outputs Are Compatible with Energy Management Systems ■ Reverse Wiring Protection ■ Internal Regulation Permits Use with Unregulated DC Power Supplies ■ Fire Retardent Case (UL 94 V-0 Approved) ■ Meets CE Conformance Standards S tra Syste ms 264 press ure trans uc- rs sense differential or gauge (static) pressure and convert this pressure i erence to a prop ort ion a e ect ric a out- put for either unidirectional or bidirectional pressure ranges. The 264 Series is offered wi t a ig eve an a og 0 to 5 VDC or 4 to 0 mA output. Use in Bui ing Energy Management ystems, these transducers are capable of measuring pressures and flows with the ccur acy necessary or proper ui ing pressurization and air flow control. T e 264 Series trans ucers are avai a e or ir pressure ranges as low as 0.1 in. W.C. full scale to 100 in. W.C. full scale. Static standard ccur ac y i s ±1.0% u sca e in norma am ient temperature environments, ut ig er ccuracies are available. The units are temperature compensated to 0.033% FS/ o t erma er ror ove r t e t empera ture ra nge o F to +150 . - y e a r n c o n d i t i o n a l W a r r a n t y H I G H O V R P R E S S U R E C A A B I L I T Y U p t o 1 0 P S I When it comes to a product to rely on - choose the Model 264. When it comes to a company to trust - choose Setra.
Transcript of 264 Data Sheet
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800-257-3872159 Swanson Rd., Boxborough, MA 01719/Telephone: 978-263-1400/Fax: 978-264-0292
U.S. Patent nos. 4093915; 4358814; 4434203; 6019002; 6014800.Other Patents Pending.
Model 264 Very Low Differential Pressure Transducer
Unidirectional Ranges: 0 - 0.1 to 0 - 100 in. W.C.Bidirectional Ranges: 0 - ±0.5 to 0 - ±50 in. W.C.
Air or Non-Con ucting Gas
NOTE: Setra quality standards are based on ANSI-Z540-1. The calibration of this product is NIST traceable.
Visit Setra Online:http://www.setra.com
The Model 264 uti lizes an improved allstain ess stee micro-tig we e sensor. T etensione s ta in ess stee iap ragm aninsulated stainless steel electrode, positionedclose to the diaphragm, form a variablecapacitor. Positive pressure moves t ediaphragm toward the electrode, increas-ing the capacitance. A decrease in pres-sure moves t e iap ragm away rom t eelectrode, decreasing the capacitance. Thechange in capacitance is detected andconverte to a inear DC e ectrica signa ySetra’s unique e ectronic circuit.
T e tensione sensor a ows up to 10 PSIoverpressure (range epen ent) wit nodamage to the unit. In addition, the parts thatma e up t e sensor ave t erma y matc ecoefficients, which promote improvedtemperature performance and excellent longterm sta i ity.
Applications● Heating, Ventilating and
Air Conditioning (HVAC)● Energy Management
Systems● Variable Air Volume and
Fan Control (VAV)● Environmental Pollution
Control● Lab and Fume Hood Contro● Oven Pressurization and
Furnace Draft Controls
Features■ Up to 10 PSI Overpressure
(Range Dependent)■ Installation Time
Minimized with Snap TrackMounting and Easy- To-
Access Pressure Ports andElectrical Connections
■ 0 to 5 VDC or 2-wire 4 to20 mA Analog Outputs AreCompatible with EnergyManagement Systems
■ Reverse Wiring Protection■ Internal Regulation Permits
Use with Unregulated DCPower Supplies
■ Fire Retardent Case(UL 94 V-0 Approved)■ Meets CE Conformance
Standards
S tra Systems 264 pressure trans uc-rs sense differential or gauge (static)
pres sure and convert this pressurei erence to a proportiona e ectrica out-
put for either unidirectional or bidirectionalpressure ranges. The 264 Series is offeredwit a ig eve ana og 0 to 5 VDC or 4 to
0 mA output.
Use in Bui ing Energy Managementystems, these transducers are capable of
measuring pressures and ows with theccuracy necessary or proper ui ing
pressurization and air ow control.
T e 264 Series trans ucers are avai a e orir pressure ranges as low as 0.1 in. W.C. full
scale to 100 in. W.C. full scale. Static standardccuracy is ±1.0% u sca e in norma am ient
temperature environments, ut ig er
ccuracies are available. The units aretemperature compensated to 0.033% FS/ o t erma error over t e temperature range o
F to +150 .
- y e a r n c o n d i t i o n a l W a r r a n t y
H I G H O V R P R E S S U R E
C A A B I L I T Y
U p t o 1 0 P S I
When it comes to a product torely on - choose the Model 264.When it comes to a company totrust - choose Setra.
8/10/2019 264 Data Sheet
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o e T1 E ectr ca Term nat on D mens ons.078
.7.92
0.385.
7
S
NM
Performance DataStandard Optional
Accuracy* RSS(at constant temp)1.0% FS ±0.4% FS ±0.25% FSNon-Linearity, BFSL 0.96% FS 0.38% FS ±0.22% FSHysteresis 0.10% FS 0.10% FS 0.10% FSNon-Repeatability 0.05% FS 0.05% FS 0.05%FS
Thermal Effects *ompensated Range °F(°C) 0 to +150 (-18 to +65)ero/Span Shift %FS/°F(°C) 0.033 (0.06)
Maximum Line Pressure 10 psiverpressure Up to 10 psi
(Range Dependent)ong Term Stability 0.5% FS/1 YR
Zero Offsetosition Effect Range (%FS/G)Unit is factory calibrated at 0g To 0.5 in. WC 0.60ffect in the vertical position.) To 1.0 in. WC 0.50
To 2.5 in. WC 0.22To 5 in. WC 0.14
RSS of Non-Linearity, Hysteresis, and Non-Repeatability.*Units calibrated at nominal 70˚F. Maximum thermal error computed fromthis datum.
E ectr ca Data Vo tageircuit 3-Wire (Com, Exc, Ou
Excitation 9 to 30 VDCutput* 0 to 5 VDC**
Bidirectional output at zeropressure: 2.5 VDC*
utput Impedance 100 ohms*Calibrated into a 50K ohm load, operable into a 5000 ohm**Zero output factory set to within ±50mV (±25 mV for o**Span (Full Scale) output factory set to within ±50mV. (±
optional accuracies).
E ectr ca Data Currentircuit 2-Wireutput* 4 to 20mA**
Bidirectional output at zeropressure: 12mA*
External Load 0 to 800 ohmsMinimum supply voltage (VDC) = 9+ 0.02 x(Resistance of receiver plus line).Maximum supply voltage (VDC) = 30+ 0.004 x(Resistance of receiver plus line).*Calibrated at factory with a 24 VDC loop supply voltage **Zero output factory set to within ±0.16mA (±0.08 mA fo
accuracies).**Span (Full Scale) output factory set to wtihin ±0.16mA
optional accuracies).
Model 264 Specications
159 Swanson Road, Boxborough, MA 01719/Tel: 978-263-1400; To Free: 800-257-3872; Fax: 978-264-0292; emai : sa [email protected]
S S P 2 6 4
R e v
. G 0 1
/ 2 4
/ 0 8
Co e a oc s n ta e.xamp e: Part No. 26412R5WD11T1C or a 264 Trans ucer 0 to 2.5 n. WC Range, 4 to 20 mA Output, Term na Str p E ectr ca Connect on, an ±1% Accuracy.
Model
2641 = 264
P ease contact actory or versions not s own.
2 6 4 1
R1WD = 0 to 0.1 in. WC R05WB = ±0.05 in.R25WD = 0 to 0.25 in. WC 0R1WB = ±0.1 in. WR5WD = 0 to 0.5 in. WC R25WB = ±0.25 in. WC01 = 0 to 1 n. 0 5 = ±0.5 n.5 = 0 to 2.5 n. 001 = ±1 n.
03WD = 0 to 3 in. WC 1R5WB = ±1.5 in. WC05WD = 0 to 5 in. WC 2R5WB = ±2.5 in. WC10WD = 0 to 10 in. WC 005WB = ±5 in. WC15 = 0 to 15 n. 7 5 = ±7.5 n.25 = 0 to 25 n. 010 = ±10 n.50WD = 0 to 50 in. WC 025WB = ±25 in. WC
100WD = 0 to 100 in. WC 050WB = ±50 in. WC
ec. ermnat on
tan ar T1 = Terminal Stripptional
A1 = 1/2” Conduit nc osure
ccuracy
tan ar = ±1%
E = ±0.4% FS = ±0.25%
= ±1%
Output
11 = 4-20 m C 2 = 0 to 5
ORDERING INFORMATION
Outline Drawings
Rangeserent a rect ona
O tional (w/Cal. Cert
While we provide application assistance on all Setra products, both personally and
rough our literature, it is the customer’s responsibility to determine the suitabilitythe product in the application.
Env ronmenta DataemperatureOperating °F (°C) 0 to +175 (-18 to +79)
Storage F ( C) -65 to +250 (-54 to +121)*Operating temperature limits of the electronics only. Pressure mediatemperatures may be considerably higher.
Physical Descriptionse Fire-Retardant Glass Filled
Polyester (UL 94 V-0 Approved)Mounting Four screw holes on removable
zinc plated steel base (designedfor 2.75” snap track)
Electrical Connection Screw Terminal StripPressure Fittings 3/16” O.D. barbed brass
pressure tting for 1/4” push-ontubing
Zero and Span Adjustments Accessible on top of caseWeight (approx.) 10 ounces
Pressure Me aTypically air or similar non-conducting gases.
Optional 1/2” Conduit Electrical Enclosure Dimensions
Specications subject to change without notice.
