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Air Veloeity Transmitter
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PHYSICAL DATA
Temperature Limits: Standard 275¡ÆF (135¡ÆC). High temperature, MT option (not 
U.L., C.S.A. or CENELEC/SAA), 400¡ÆF (205¡ÆC) max.
Operating Pressure: Body 1000 PSIG (70kg/cm2) Float 100 PSIG (7kg/cm2). See 
Float data below for other pressures.
Electrical Rating: U.L. and CENELEC/SAA: 10A @ 125/250 VAC. C.S.A.: 5A @ 
125/250 VAC, 5A resistive, 3A inductive @ 30 VDC. Optional ratings (not U.L., 
C.S.A. or CENELEC/SAA); MV option: Gold contacts for dry circuits. Rated 1 amp 
@ 125 VAC, 1 amp resistive, 1/2 amp inductive @ 30 VDC. MT option: 400¡ÆF (205¡Æ
C) 5 amp @ 125/250 VAC.
Wiring: UL./C.S.A. unit; 16 gauge copper wire, 6" (152mm) long, mechanically 
and solder bonded to switch. CENELEC/SAA unit: Terminal board.
Switch Body: One piece milled and bored Brass or 316SS.
Float: 316SS, l 5/8" x 5" (41mmx127mm), std. 100 PSIG (7kg/cm2) min. SG 0.7 
Trim includes 430SS and silver solder. Optional floats: 316SS 150 PSIG 
(10kg/cm2) min. SG 0.7. 304SS 300 PSIG (21 kg/cm2) min. SG 0.7. 304SS 50 PSIG 
(3.5kg/cm2) min. SG 0.5. Optional floats, 2 1/2" OD (64mm) spherical.
Piping Connection: 1 1/2" NPT std. for mounting in 1 1/2" thredolet. 2 l/2" NPT 
required for optional floats. For other mounting see application page. Thredolet fittings available.
Protection: NEMA-4 watertight (IP56) standard.
Installation: Horizontal installation standard. Vertical installation available.
Weight: 4 lb. 9 oz. (2.07kg).
Options: All 316SS wetted parts. Floats for light fluids, high pressure, and 
corrosive service. DPDT circuit.
Standard Dead