Mercoid SA1100 Serie Instrucciones De Instalación Y Funcionamiento

Series SA1100 Pressure Switches actuate one or two single pole, double throw
(SPDT) snap switches in response to increasing or decreasing pressure of
compatible gases or liquids. Three field adjustable operating ranges are available
allowing setpoints up to 500 psig (35 kg/cm
suitable for hazardous locations as detailed in the chart at lower right. Read and
understand these instructions completely before proceeding with installation or
operation.
MODEL CHART - SERIES SA1100
Example SA11 13 E A
Construction SA11
Adjustable 11
Pressure 12
Ranges 13
Circuit E
(Switch)
Options HS
HG
Pressure A
Chamber B
Material S
Diaphragm
Material
Circuit
(Switch) Type
Process
Connection
Options
*Options that do not have ATEX and IECEx.
Attention: Units without the "AT" suffix are not Directive 94/9/EC (ATEX) compliant. These units are not intended for use in potentially hazardous atmospheres in the EU.
These units may be CE marked for other Directives of the EU.
MERCOID DIVISION
DWYER INSTRUMENTS, INC.
P.O. BOX 258 • MICHIGAN CITY, INDIANA 46360, U.S.A.
Series SA1100 Pressure Switches Weatherproof, Explosion-Proof
Specifications - Installation and Operating Instructions
). All models are weather-proof and
2
4 K 1 SA1113E-A4-K1 Pressure Control; weatherproof, NEMA 4X, explosion-proof NEMA 7 & 9; aluminum pressure chamber,
Buna-N diaphragm and O-ring; 1/4˝ female NPT process connection; adjustable deadband, automatic reset; SPDT snap
acting switch; adjustable range 30-500 psig.
Series Designator, weatherproof NEMA 4X, explosion-proof NEMA 7, 9
10 - 150 psig (0.7 - 10 bar)
20 - 250 psig (1.4 - 17.2 bar)
30 - 500 psig (2.0 - 34.0 bar)
Snap action switch rated 15A @ 125/250/480 VAC, 1/8 HP @ 125 VAC,
1/4 HP @ 250 VAC, 1/2 A @ 125 VDC resistive, 1/4 A @ 250 VDC resistive.
Hermetically sealed snap action switch rated 5 A@ 125/250 VAC, 5 A resistive @ 30 VDC*
Hermetically sealed snap action switch with gold contacts rated 1 A @ 125 VAC, 1 A resistive @ 30 VDC*
Aluminum
Brass
316SS
4 Buna-N diaphragm and O-ring
5 Fluorocarbon diaphragm and O-ring
K SPDT
L DPDT (not available with HS or HG switch options)
1 1/4˝ female NPT
2 1/2˝ female NPT
AT ATEX certified construction.
IEC IEC IECEx certified construction
DR Housing with drain - allows condensate to be drained from inside enclosure (meets NEMA 3R instead of 4X)
SPECIFICATIONS
Temperature Limits: -30 to 180°F (-35° to 82°C) standard.
ATEX and IECEx compliant at Ambient Temperature -4 to 146°F (-20 to 63.6°C).
Process Temperature: -4 to 146°F (-20 to 63.6°C).
Maximum Operating Pressure: 1200 psig (82.6 bar).
Maximum Pressure Without Bursting: 3000 psig (210 kg/cm
Process Connection: 1/4˝ or 1/2˝ female NPT.
Electrical Ratings: SPDT or DPDT contacts rated 15A @ 125/250/480 VAC (V~),
1/8 HP @ 125 VAC (V~), 1/4 HP @ 250 VAC (V~), 1/2A @ 125 VDC (V
1/4A @ 250 VDC (V ) resistive.
Wiring Connections: 3 screw type.
Conduit Connections: 3/4˝ female NPT.
Setpoint Adjustment: 7/16˝ hex nut, field adjustable.
Housing Material: Die cast aluminum.
Finish: Textured gray polyurethane.
Connection Material: Aluminum, brass or 316SS.
Diaphragm: Buna-N or fluorocarbon.
Weight: 3-1/2 lbs. (1.59 kg).
Enclosure Ratings: Weatherproof and Explosion-proof. Listed with UL and CSA for
Class I, Groups B, C and D; Class II Groups E, F and G. UL-NEMA 4X, CSA-NEMA
4. ATEX Compliant 0344 II 2 G Ex d IIC T6 Gb -20 ≤ Tamb ≤63.6°C. Process
Temperature ≤63.6°C. Type Certificate No.:KEMA 04ATEX2186 X. IP56 without
drain and IP 54 with drain. ATEX Standards: EN 60079-0: 2009; EN60079-1: 2007.
IECEx Certified: For Ex d IIC T6 Gb -20 ≤ Tamb ≤63.6°C Process Temperature
≤63.6°C. IECEx Certificate of Conformity: IECEx DEK 11.0095 X; IECEx Standards:
IEC 60079-0: 2007; IEC 60079-1: 2007.
Phone: 219/879-8000 www.dwyer-inst.com
Fax: 219/872-9057 e-mail: info@dwyer-inst.com
Bulletin IN-1100
2 ).
) resistive,