ProMinent DULCOMETER PH-501 Assembly And Operating Instructions Manual page 115

Model 1823 pressure switch. UL
and CSA Listed, FM and CENELEC
approved.
One of our most popular pressure switches. Combines small
size and low price with 2% repeatability for enough accuracy for
all but the most demanding applications. Set point adjustment
inside the mounting switch on one side of a wall or panel with
adjustment easily accessible on the opposite side.
*Model 1823 shown; (1823 replaces 1820, 1821 and 1822
which are similar).
Environmental (MIL) Switch
Unlisted Model 1820 can be furnished with special snap switch
sealed against the environment for high humidity and/or for
government applications. Similar to standard Model 1823 except
dead band is slightly greater. Specify Model 1820 (Range No.)
"MIL" in ordering.
SERIES 1823 SWITCHES —
OPERATING RANGES & DEADBANDS
Operating
Model Range,
Number Inches W.C.
1823-00 0.07 to 0.22
1823-0 0.15 to 0.5
1823-1 0.3 to 1.0
1823-2 0.5 to 2.0
1823-5 1.5 to 5.0
1823-10 2.0 to10
1823-20 3 to 22
1823-40 5 to 44
1823-80 9 to 85
DWYER INSTRUMENTS, INC.
P.O. BOX 373 • MICHIGAN CITY, INDIANA 46361, U.S.A.
Low Differential Pressure Switches
Series
1800
for General Industrial Service
Specifications — Installation and Operating Instructions
PSL-301 - Switch, Pressure, 1823-2
PSL501 - Switch, Pressure, 1823-40
PSL-601/2 - Switch, Pressure, 1823-40
PSL-7911 - Switch, Pressure, 1823-2
Series 1823 pressure switch.
Conduit enclosure removed to
show electric switch.
Approximate
Dead Band
At Max.
At Min.
Set Point Set Point
0.05 0.05
0.06 0.06
0.08 0.08
0.10 0.12
0.14 0.28
0.18 0.45
0.35 0.70
0.56 1.10
1.30 3.0
fl7/8 [22.23]
CONDUIT
CONNECTION
3-39/64
[91.68]
3-1/8
[19.05]
[79.38]
fl4
[101.60]
CLEARANCE FOR
COVER REMOVAL
Construction and dimensions. Series 1823 pressure switches.
SPECIFICATIONS
Service: Air and non-combustible, compatible gases.
Wetted Materials: Consult Factory.
Temperature Limits: -30 to 180°F (-34 to 82.2°C). 1823-00,
-20 to 180°F (-28.9 to 82.2°C).
Pressure Limits: 10 psig (68.95 kPa) continuous, 25 psig
(172.4 kPa) surge.
Switch Type: Single-pole double-throw (SPDT).
Repeatability: ±2%.
Electrical Rating: 15 A @ 120-480 VAC, 60 Hz. Resistive 1/8
HP @125 VAC, 1/4 HP @ 250 VAC, 60 Hz. De-rate to 10 A for
operation at high cycle rates.
Electrical Connections: 3 screw type, common, normally open
and normally closed.
Process Connections: 1/8˝ female NPT.
Mounting Orientation: Diaphragm in vertical position. Consult
factory for other position orientations.
Set Point Adjustment: Screw type inside mounting spud.
Weight: 1 lb, 5 oz (595 g).
Agency Approvals: CE, UL, CSA, FM.
Phone: 219/879-8000 www.dwyer-inst.com
Fax: 219/872-9057 e-mail: info@dwyer-inst.com
Bulletin E-53
1-1/8
1-27/32
[28.57]
[46.83]
1/8 FEMALE NPT
HIGH PRESSURE
CONNECTION
1/2 MALE NPT
MOUNTING SPUD
1/8 FEMALE NPT
LOW PRESSURE
CONNECTION
3/4
2-3/32
[53.18]
2-1/8
3-27/32
[53.98]
[97.63]
Adjustment Screw
E-1250