Differential pressure switch339

Essential for industrial environments, theSeries 1800 combines small size and lowprice with 2% repeatability for enough accuracy for all but the most demandingapplications. Set point adjustment inside the mounting stud permits mountingswitch on one side of a wall or panel with adjustment easily accessible on theopposite side. UL and CSA listed, and FM approved.

CAUTION: FOR USE ONLY WITH AIR OR COMPATIBLEGASES.

Service:Air and non-combustible, compatible gases.Wetted Materials: Consult Factory.Temperature Limits: -30 to 180°F (-34 to82.2°C). 1823-00, -20 to 180°F (-28.9 to 82.2°C).Pressure Limits: 10 psig (68.95 kPa)continuous, 25 psig (172.4 kPa) surge.Switch Type: Single-pole double-throw (SPDT).Repeatability: ±2%.Electrical Rating: 15 A @ 120-480 VAC, 60Hz. Resistive 1/8 HP @ 125 VAC, 1/4 HP @ 250 VAC, 60 Hz. De-rate to 10 A foroperation at high cycle rates.Electrical Connections: 3 screw type,common, normally open and normally closed.Process Connections: 1/8″ female NPT.Mounting Orientation: Diaphragm in verticalposition. Consult factory for other position orientations.Set Point Adjustment: Screw type insidemounting spud.Weight: 1 lb, 5 oz (595 g).Agency Approvals: CE, UL, CSA and FM. NOTE:Optional (-EXPL) Explosion-proof Enclosure does not possess any agencyapprovals.OPTIONS:

• Weatherproof Housing – 16-ga. steel enclosure with gasketed cover (NEMA 4, IP66) for wet or oily conditions. Withstands 200 hour salt spray test. Wt. 5-1/2 lbs. (2.5 kg). Switch must be factory installed. Change 1823 base number to 1824 and add -WP suffix. Example: 1824-1-WP.
• Explosion-proof Housing – Cast iron base with aluminum cover. Rated Class I, Group D; Class II, Div. 1 & 2, Groups E,F,G; Class III and NEMA 7 C,D, NEMA 9 E,F,G. Wt. 7-1/2 lbs. (3.4 kg). Switch must be factory installed. Change base number to 1824 and add -EXPL suffix. Example: 1824-1-EXPL.
• MIL Environmental Construction – Unlisted Model 1820 can be furnished with a special sealed snap switch for protection against high humidity, fungus and/or military applications. Similar to Model 1823 except dead band is slightly greater and some lower set points may not be possible. To order, add suffix -MIL. Example: 1820-2-MIL.

ACCESSORIES:

• A-389 – Mounting bracket, 16 ga steel, zinc plated and Dichromate dipped for corrosion resistance.
• A-465 – Flush mount space pressure sensor.
• A-301 – Static pressure tip, for 1/4″ metal tubing connection.
• A-302 – Static pressure tip, for 3/16″ and 1/8″ ID plastic or rubber tubing.
• A-303 – Portable static pressure tip, for 3/16″ ID rubber or plastic tubing with 3″ insertion.
• A-414 – 316 SS clean room pressure sensor.
• A-307 – Static pressure fitting, for 1/4″ metal tubing connection.
• A-308 – Static pressure fitting, for 3/16″ and 1/8″ ID plastic or rubber tubing.
• A-417 – Static pressure pickup, for use in clean rooms, 100 micron filter picks up static pressure, stainless steel wall plate fits 2″ x 4″ electrical box, sealed with foam gasket, screws included. Barbed brass fitting holds 1/8″ to 5/32″ ID tubing.
• A-418 – Static pressure pickup, room mount with Delta style plastic enclosure fits 2″ x 4″ electrical box, mesh screen hides static pressure pickup port, clean connection to 1/8″ to 5/32″ ID tubing and pressure sensor. Sealed with foam gasket, screws included.
• A-419 – Static pressure pickup ceiling mount, plate rests on top of standard 3/4″ thick ceiling tile while 100 micron filter faces down through 5/8″ hole in tile, screws included for optional mounting to junction box, barbed fitting holds 1/8″ to 5/32″ ID tubing.
• A-420 – Static pressure pickup for roof/outside mount, NEMA 4X (IP66) rated structure withstands harsh environmental elements, structure is 3-5/8″ across and 2-1/2″ deep, EMT conduit fitting is 1/2″, pressure connection is brass barbed fitting for 1/4″ tubing.
• A-306-A – Outdoor static pressure sensor, provides average outdoor pressure signal for reference in building pressurization applications, includes sensor, 50 ft vinyl tubing, mounting bracket and hardware.
• A-201 – Rubber tubing, 3/16″ ID, 9 ft length.
• A-202 – Rubber tubing, 3/16″ ID, lengths to 50 ft, per ft.
• A-203 – PVC tubing, 1/8″ ID x 1/4″ OD, per ft.
• A-210 – Aluminum tubing, 1/4″ OD, 5 ft length, 500 psi maximum pressure @ 200°F.
• A-211 – Aluminum tubing, 1/4″ OD, 50 ft length, 500 psi maximum pressure @ 200°F.
• A-220 – Flexible vinyl tubing, clear 3/16″ ID x 5/16″ OD, lengths to 500 ft, per ft, 45 psi maximum pressure @ 73°F.
• A-221 – Flexible vinyl tubing, clear 1/8″ ID x 3/16″ OD, lengths to 500 ft, per ft, 40 psi maximum pressure @ 165°F.
• A-222 – Flexible vinyl tubing, clear .240″ ID x .375″ OD, lengths to 500 ft, per ft, 35 psi maximum pressure @ 73°F.
• A-223 – Black polyethylene 1/8″ ID 1/4″ OD, 10 ft length, 200 psi maximum @ 140°F.
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