Omega MDA User guide

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Page 1

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5/16 TYP

[18.29]

SERIES MDA

MINIATURE ADJUSTABLE PRESSURE SWITCH

Adjustable Set Points from 0.1 to 100 in w.c.

7/32

[5.59]

HIGH

PRESSURE

PORT

Ø1/8 4 PLACES

[Ø3.18]

23/32

[18.29]

1 SQ

[25.40]

25/32

[19.81]

13/64 TYP

[5.08]

[7.87]

31/64

[12.19]

23/32 TYP

Ø5/32 TYP

[3.96]

LOW

PRESSURE

PORT

19/32

[15.24]

1 5/32

[29.21]

23/32

[18.29]

Series MDA Miniature Adjustable Pressure Switch is used to sense differential

pressure.The switchfeatures eldadjustable setpoint andgold inlaycontacts. The

lightweight and compact size make the MDA ideal for any application with space constraints. Applications include industrial, HVAC, pump and motor control, medical, automotive, pools and spas.

BENEFITS/FEATURES

• Airoruidonhighsidepermitsmultipleuseswherebothairandliquidsexist

• Small and lightweight for applications where space is constrained

• Gold contacts help ensure a clean connection without dirt or oxidation

APPLICATIONS

• Industrial

• Medical

• HVAC

• Pump and motor control

• Automotive

• Pools and spas

MODEL CHART

Model MDA-011-T MDA-111 MDA-211 MDA-311 MDA-411

Min. Set Point in w.c. (mbar)

0.1 (0.25)

0.5 (1.25)

2.0 (4.98) 15 (37.37) 60 (149.3)

Max. Set Point in w.c. (mbar)

0.5 (1.25)

2.0 (4.98) 15 (37.37) 60 (149.3) 100 (249.10)

SPECIFICATIONS Switch Type: SPST normally open. Switching Media: Air(compatibleuidson“high”side). Pressure Limits: MDA-0XX: 4 psi; MDA-1XX: 8 psi; MDA-2XX: 8 psi; MDA-3XX:

15 psi; MDA-4XX: 30 psi.

Current Rating: 40 mA resistive; Cycle life: More than 20 million cycles. Operating Temperature: 40 to 150°F (4 to 66°C). Storage Temperature: -46 to 150°F (-43 to 66°C). Contacts: 18K gold inlay. Electrical Connections: Terminals-0.187˝x0.20:spade(recessed)forusewith

quick disconnects.

Pressure Connections: Smoothport5/32˝diameterfor1/8˝IDtubing. Housing: Polycarbonate. Diaphragm Material: Polyurethane (MDA-0XX: PTFE). Operating Voltage: AC/DC - 30 V or less with resistive load. Mounting: Use #4 screws through mounting lugs or #2 screws through eyelets. Weight: Less than 0.353 oz (10 g).

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

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