Dwyer 3000MRS Photohelic Switch/Gauge 0 to 100 MM
Series 3000MR/3000MRS Photohelic® Switch/Gage
Model | Description |
3000MRS-100 MM | Pressure Switch/Gage,Range 0-100 MM, 2.0 minor divisions. |
Includes
he Series 3000MR Photohelic® Switch/Gage 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 in 4-13/16" hole or surface mounted with hardware supplied. 3000MR models employ versatile electromechanical relays with gold over silver contacts - ideal for dry circuits.
Gage accuracy is ±2% of full scale and switch repeatability is ±1%. Switch deadband is one pointer width - less than 1% of full scale. Compatible with air and other non-combustible, non-corrosive gases, they can be used in systems with pressures to 25 psig.
Applications
Approvals
Service | Air and non-combustible, compatible gases |
Accuracy | ±2% of FS at 70°F |
Pressure Limits | -20" Hg to 25 psig |
Temperature Limits | 20 to 120°F |
Process Connections | 1/8 female NPT (duplicated side and back) |
Size | 4" dial face, 5" O.D. x 3-1/8" |
Weight | 1.8 lb |
Switch Specifications | |
Switch Type | Each setpoint has 1 Form C relay (SPDT) |
Relay Contacts | (resistive load) 1 Form C rated 1.0A @ 30 VDC, 0.3A @ 110 VDC or 0.5A @ 125 VAC. Gold over clad silver - suitable for dry circuits |
Electrical Connections | 18" cable assembly with 8 conductors |
Power Requirements | 24 VDC, regulated ±10% |
Mounting Orientation | Diaphragm in vertical position |
Set Point Adjustment | Adjustable knobs on face |
Agency Approvals | CE |