Using solid state technology, the SERIES 3000MR AND 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); and (3) 6-32 x 5/16" RH machine screws (surface mounting).
| Model | Description |
|---|---|
| 3000MR-0 | Pressure switch/gage, range 0-0.5" w.c., .01 minor divisions. |
| 3001MR | Pressure switch/gage, range 0-1" w.c., .02 minor divisions. |
| 3002MR | Pressure switch/gage, range 0-2" w.c., .05 minor divisions. |
| 3003MR | Pressure switch/gage, range 0-3" w.c., .10 minor divisions. |
| 3005MR | Pressure switch/gage, range 0-5" w.c., .10 minor divisions. |
| 3010MR | Pressure switch/gage, range 0-10" w.c., .20 minor divisions. |
| 3015MR | Pressure switch/gage, range 0-15" w.c., .50 minor divisions. |
| 3020MR | Pressure switch/gage, range 0-20" w.c., .50 minor divisions. |
| 3030MR | Pressure switch/gage, range 0-30" w.c., 1.0 minor divisions. |
| 3050MR | Pressure switch/gage, range 0-50" w.c., 1.0 minor divisions. |
| 3100MR | Pressure switch/gage, range 0-100" w.c., 2.0 minor divisions. |

Price:
Thread : 1/8 female NPT high and low pressure connections
Outer Size : 41/2 inches (115 mm) dial
Accessories : Mounting bracket, two plastic tubing ferrules, and instructions
Dial Material : Other, Metal, white background with black markings
Processing Type : Other, Precision mechanical and electrical assembly
Seal Material : BunaN
Thread : 1/8 NPT female
Outer Size : 117 mm diameter (45/8)
Accessories : Mounting bracket, hardware, and instruction manual
Dial Material : Other, Plastic (polycarbonate cover)
Processing Type : Other, Diecast aluminum
Seal Material : Silicone rubber
Thread : 1/8 NPT Female
Outer Size : Round, approximately 115 mm housing diameter
Accessories : Panel mounting hardware, terminal strip, instruction manual
Dial Material : Other, Plastic/Acrylic
Processing Type : Other, PrecisionMachined
Seal Material : Silicone and BunaN
Thread : 1/8 NPT Female
Outer Size : 126 mm (5 in) dia. case
Accessories : Surface mounting bracket, hardware kit, and instruction manual
Dial Material : Other, Printed Plastic
Processing Type : Other, Photoelectric/Electromechanical
Seal Material : BunaN