Instrumentation
	Pressure	Transmitters and Sensors
	Differential Pressure Transmitter       668				Differential Pressure Transmitter      674
		Ranges from 0 to 0.25" w.c.,				±1% FS Accuracy, Up to Six Field
		Overpressure Protection to 10 psig.				Selectable Ranges, 10 psid
		Low cost Series 668 Differential				Overpressure. Measure and Control
		Pressure Transmitter is capable of				building/room pressure, air flow, duct
		measuring low pressures with a ±1%				pressure or filter drop with the Series
		accuracy - ideally suited for proper				674 Differential Pressure Transmitter.
		building pressurization and air flow				These versatile transmitters provide
		control. Variable capacitance sensor				up to six field selectable direct or
		design provides excellent sensitivity.				compound pressure ranges.
	Differential Pressure Transmitter      604A				Duct Pressure Transmitter          676
		The Series 604A Differential Pressure				Lower installation costs with the
		Transmitter offers very low ranges				Series 676 Duct Pressure Transmitter.
		down to 0-0.1" w.c. (25 Pa) yet				The Series 676 Transmitter
		withstands continuous pressure to				incorporates a pressure sensor and
		30 psig (2 bar). The tough filled Nylon				a static pressure tip into a single unit,
		housing features simple surface				eliminating the need for costly control
		mounting arrangement and barbed				panels and reducing installation time.
		connections. The units are compact				Each transmitter has three (3) field
		and lightweight yet provide overall .				selectable pressure ranges.