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Series 3000MR/3000MRS Photohelic® Switch/Gage

Pressure switch/gage, range 0-50" w.c., 1.0 minor divisions.

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Data Sheet (PDF)

$638.00

Item# 3050MRS

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Gage reading unaffected by switch operation and will continue to read pressure even during power loss
Zero and range adjustments outside of gage means no disassembly in normal service
Solid-state design allows for switching in high cycle rate applications without degradation

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3050MRS Model Options

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Edit these specs to order a different model. Not all combinations are valid. Options compatible with previous selections will be in bold.

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Pressure Range

Alarm Types (DC/AC)

Pressure Type

Pressure Port Size

Accuracy Class

Dial Size

Specs

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Accuracy ±2% of FS (3000-0 ±3% of FS). (3000-00 ±4% of FS).
Process Connections 1/8" female NPT (duplicated side and back).
Service Air and non-combustible
Size 4" (101.6 mm) dial face
Temperature Limits 20 to 120°F (-6.67 to 48.9°C).
Weight 1.8 Ib (816 g).
Wetted Materials Consult factory.
Agency Approvals(3000MR) CE.
Electrical Connections(3000MR) 18" (46 cm) cable assembly with 8 conductors. Optional lengths to 100' (30.5 m).
Electrical Connections(3000MRS) 18" (46 cm) cable assembly with 6 conductors
Mounting Orientation(3000MR) Diaphragm in vertical position. Consult factory for other position orientations.
Mounting Orientation(3000MRS) Diaphragm in vertical position. Consult factory for other position orientations.
Power Requirements(3000MR) 24 VDC
Power Requirements(3000MRS) 24 VDC
Pressure Limit -20" Hg. to 25 psig (-0.677 bar to 1.72 bar). MP option 35 psig (2.41 bar)
Relay Contacts(3000MR) (Resistive load) 1 form C rated 1.0A @ 30 VDC
Set Point Adjustment(3000MR) Adjustable knobs on face.
Switch Type(3000MR) Each setpoint has 1 form C relays (SPDT).
Switch Type(3000MRS) Each setpoint has a solid state relay.
Switching Current(3000MRS) 1.0 amp (AC) max.
Switching Voltage(3000MRS) 20-280 VAC (47-63 Hz).

Using solid state technology, the Series 3000MR/3000MRS Photohelic® Switch/Gages combine the functions of a precise, highly repeatable differential pressure switch with a large easy-to-read analog pressure gage employing the durable, time-proven Magnehelic® gage design. Switch setting is easy to adjust with large external knobs on the gage face. Gage reading is unaffected by switch operation - will indicate accurately even if power is interrupted. Solid state design now results in greatly reduced size and weight. Units can be flush mounted or surface mounted with hardware supplied. 3000MR models employ versatile electromechanical relays with gold over silver contacts - ideal for dry circuits. For applications requiring high cycle rates, choose 3000MRS models with SPST (N.O.) solid state relays. All models provide both low and high limit control and include 18-inch (45 cm) cable assemblies for electrical connections.

Compatible with air and other non-combustible, non-corrosive gases, they can be used in systems with pressures to 25 psig (1.725 bar). Optional construction is available for use to either 35 psig (2.42 bar) or 80 psig (5.51 bar).

Included Accessories:
Mounting ring, snap ring
18" (45 cm) cable assembly
(2) 3/16" tubing to 1/8" NPT adapters
(2) 1/8" NPT pipe plugs
(4) 6-32 x 1-1/4" RH machine screws (panel mounting)
(3) 6-32 x 5/16" RH machine screws (surface mounting).

Please see Series AT-3000MR/MRS for ATEX approved.

Product Applications

Pneumatic Conveying
Air Conditioning Systems
Clean Rooms

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