W.E. Anderson H3 Serie Betriebsanleitung

Series H3 Differential 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. Four field adjustable
operating ranges are available allowing set-points up to 200 psid. All
models are suitable for hazardous locations and also include
weatherproof housings as detailed in the chart below. Read and
understand instructions completely before proceeding with installation or
operation.
MODEL NUMBER DEFINITIONS
1 2 3
___ – ___ ___ ___ – ___
H3
1 Wetted Materials
A – Aluminum/Nitrile
B – Brass/Nitrile
S – 316 SS/Fluoroelastomer
2 Operating Range
1 – 10 to 180 in. w.c. (2.48 - 44.78 kPa)
2 – 0.5 to 15 psid
3 – 5 to 70 psid
4 – 10 to 200 psid
3
Circuit
S – SPDT
D – DPDT
4
Electrical Connections
C – Terminal block(s) ATEX Compliant Construction
T – Terminal block(s) UL and CSA approved
L – Wire leads
5 Options
MV – Gold contacts
DRAIN – Drain/Breather
VIT – Fluoroelastomer diaphragm/O-ring option where not
standard.
W.E. ANDERSON DIV., DWYER INSTRUMENTS, INC.
P.O. BOX 358 • MICHIGAN CITY, INDIANA 46360 U.S.A.
Series H3 Differential Pressure Switches
Specifications - Installation and Operating Instructions
4 5
(0.03 - 1 bar)
(0.34 - 4.8 bar)
(0.7 - 13.8 bar)
COVER SET
SCREW
3/4 NPT CONDUIT
CONN.
5-3/8
[136.53]
2-13/32
[61.12]
31/32
[24.61]
[4.37] DIA. MOUNTING HOLES
IN MOUNTING BRACKET
C PROCESS CONN.
OPTIONAL DRAIN
3-9/16 [90.49]
4 [101.6]
SPECIFICATIONS
Wetted Materials: See pressure chamber and diaphragm material in
model chart.
Temperature Limit: -4 to 220°F (-20 to 104°C), ATEX: -20 to 90°C
(-4 to 194°F).
Pressure Limit: 1500 psig (103 bar).
Enclosure Rating: See ratings chart.
Switch Type: SPDT or DPDT snap switch.
Electrical Rating: 5A @ 125/250 VAC (V~), 30 VDC (V
1A @ 125 VAC (V~); 1A res., .5A ind. @ 30 VDC (V
Electrical Connections: See model chart.
Conduit Connection: 3/4˝ female NPT.
Process Connection: 1/8˝ female NPT.
Mounting Orientation: Vertical.
Set Point Adjustment: Internal screw.
Weight: 4 lb, 2 oz (2 kg).
Deadband: Approximately 5% of range.
HAZARDOUS LOCATION/WEATHERPROOF RATINGS
UL
MODEL
—
H3 _ – _ _ C
CI. I, Gr.B, C & D
H3 _ – _ _ L
CI. II, Gr.E, F & G
H3 _ – _ _ T
NEMA 4X
—
H3 _ – _ _ C-DRAIN
CI. I, Gr.B, C & D
CI. II, Gr.E, F & G
H3 _ – _ _ L-DRAIN
NEMA 3
Attention: Units without the "C" suffix are not Directive 2014/34/EU (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.
Phone: 219/879-8000
Fax: 219/872-9057
Bulletin E-78
COVER
17/32
1-3/4
[13.5]
[44.45]
3
1-25/32
[76.2]
[45.24]
1/8 NPT HIGH PRESSURE CONN.
1/8 NPT LOW PRESSURE CONN.
). MV option:
).
Directive 2014/34/EU
CSA
ATEX Compliant
0518
II 2 G Ex d IIB
—
-20°C T amb
EC-Type Certificate No.
KEMA 03ATEX 2584
IP66
CI. I, Gr.B, C & D
CI. II, Gr.E, F & G
—
NEMA 4
0518
II 2 G Ex d IIB
—
-20°C T amb
EC-Type Certificate No.
KEMA 03ATEX 2584
IP54
— —
www.dwyer-inst.com
e-mail: info@dwyermail.com
75°C T6
75°C T6