Dwyer Instruments SERIES 43000 Catalog Page

[4] 6-32 HOLES

MOUNTING RING

SERIES 43000

CAPSU-PHOTOHELIC® PRESSURE SWITCH/GAGES

Lo-Limit and Hi-Limit Control, Aluminum or Brass Case Available

Set points are instantly adjusted with front knobs.

PRESSURE

3-1/16 [77.79] TYP

Ø4-3/4

[120.65]

Series 43000

®

Capsu-Photohelic

Series 43000

Capsu-Photohelic

Series 43000 Capsu-Photohelic® Pressure Switch/Gages function as versatile,

highly repeatable pressure switches combined with a precise pressure gage
employing the time-proven Magnehelic
gage employs an encapsulated sensing element for use with both liquids and gases
at pressures to 500 psig (34 bar). Optional cast brass case is available for water or
water based liquids. Two phototransistors actuated, DPDT relays are included for low/
high limit control. Easy to adjust set point indicators are controlled by knobs located
on the gage face. Individual set point deadband is one pointer width — less than 1%
of full-scale. Set points can be interlocked to provide variable deadband — ideal for
control of pumps.

FEATURES/BENEFITS

• Gage capsule permits high-pressure usage with small differentials

• Zero and range adjustments outside of gage means no disassembly in normal
service

• Time-proven, simple, frictionless movement that permits full-scale readings as low
as 0.5 in w.c.

• Photo-electronic relays provide fast-acting switching with variable deadband control
for chatter-free operation

APPLICATIONS

• Pump control

• Pumping systems

• Wastewater

• Compatible liquid or gas applications

®

switch/gage

switch/gage with brass body

®

gage design. The Capsu-Photohelic® switch/

3-7/8 SQ

[98.43]

3/4 CONDUIT

CONNECTION

4-3/8 [111.13]

HOUSING REMOVAL

3-7/8 [98.43]

5-1/8 [130.18]

EQUALLY SPACED ON A

5-1/8 [130.18] B.C.

1/4 FEMALE NPT

LOW PRESSURE

CONNECTION

[AIR OR GAS]

Ø5

[127.00]

Ø4-47/64

[120.25]

5/8 [15.88]

7-5/16 [185.74]

8-9/16 [217.49]

SPECIFICATIONS
GAGE SPECIFICATIONS

Service: Compatible gases and liquids. Brass case option required for water based

liquids.

Wetted Materials: Consult factory.
Accuracy: ±3% of FS at 70°F (21.1°C). ±4% on 43215, 43220 and 43500.
Pressure Limits: -20 Hg to 500 psig (-0.677 to 34.5 bar).
Temperature Limits: 20 to 120°F (-6.67 to 48.9°C). Low temperature option

available.

Process Connections: 1/4˝ female NPT.
Size: 4˝ (101.6 mm) dial face, 5˝ (127 mm) OD x 9-3/16˝ (233.36 mm).
Weight: 5 lb, 8 oz (2.49 kg). Brass 11 lb, 2 oz (5.05 kg).

SWITCH SPECIFICATIONS
Switch Type: Each set point has 2 form C relays (DPDT).
Repeatability: ±1% of FS.
Electrical Rating: 10 A @ 120 VAC, 6 A @ 240 VAC, 60 Hz res. 10 A @ 28 VDC.
Electrical Connections: Screw terminals.
Power Requirements: 120 VAC, 50/60 Hz; 240 VAC and 24 VAC power optional.
Mounting Orientation: Diaphragm in vertical position. Consult factory for other

position orientations.
Set Point Adjustment: Adjustable knobs on face.

PANEL MAX

3/16 [4.76]

5/8 [15.88]

1/4 FEMALE

NPT LOW

PRESSURE

CONNECTION

[LIQUID]

1/4 FEMALE NPT
HIGH PRESSURE
CONNECTION [AIR OR GAS]

Ø [101.60]

FACE

5-1/2 [139.70] O.D.

1/4 FEMALE NPT
HIGH PRESSURE
CONNECTION
[LIQUID]

3/4 [19.05] TYP

Gages/Switches, Dial

Differential Pressure

MODEL CHART
Model Range in w.c. Model Range in w.c.
43000-0

0-.5

43001

0-1.0

43002

0-2.0

43003

0-3.0

43004

0-4.0

43005

0-5.0

43006

0-6.0

43008

0-8.0

43010

0-10

43015

0-15

43020

0-20

43025

0-25

43030

0-30

43040

0-40

ACCESSORIES
Model Description
A-298 Flat aluminum bracket for ush mounting

43050
43060
43080
43100
43150
43200
43300
43400
43500
43302
43304
43310
43320
43330

0-50
0-60
0-80
0-100
0-150
0-200
0-300
0-400
0-500
1-0-1
2-0-2
5-0-5
10-0-10
15-0-15

OPTIONS
To order

add sufx: Description

-SRH

-SRL

-24VAC

-240VAC

-RMR

-TAMP

-WP

-EXPL

-NIST

Example: 43001-NIST

B Brass body; For water based liquids order optional brass case

Example: 43001B

Note: Contact Customer Service for detailed dimension drawings.

USA: California Proposition 65
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Single relay activates on increase
Single relay activates on decrease
24 VAC relay pack
240 VAC relay pack
Remote mounted relay
Tamper proof knobs

Weatherproof (NEMA 4)
Explosion-proof (NEMA 7 C, D, 9 E, F, G; NEC Class I, Div. 1 and 2,

Groups C, D, Class II, Div. 1 and 2, Groups E, F, G, Class III

NIST traceable calibration certicate

Process Tubing Options: See page 453 (Gage Tubing Accessories)

DWYER INSTRUMENTS, INC.

41