Varec®- Transmitter Comparisons

Varec Tank Gauge Transmitters Product Comparison

	2557	2900	4000	4110	8200

	SPDT cam-operated switches	Absolute Encoder (optical)	Incremental Encoder (optical)
Analog Inputs	-	Two (2) discrete inputs as standard Additional two (2) discrete inputs as option	-	-	-
Digital Inputs	-	-	With optional Model 4050 Digital Input/Output Unit	-	-
Temperature	-	3-wire RTD	3-wire RTD	Via HART® I.S.	-
Outputs	Two, four or six (2/4/6) SPDT cam-operated switches	Four (4) Contact outputs* Two or Four (2/4) SPDT cam operated switches*	-	-	Two or four (2/4) SPDT cam-operated switches
Communications	-	Mark/Space		-	-
	-	EIA-485 MODBUS		-	-
	-	L&J Tankway		-	-
	-	Whessoe Bus (WM550)		-	-
	-	-	Ti-Way	-	-
	-	-	GSI - MODBUS	-	-
	-	-	GSI - ASCII	-	-
	-	-	-	HART® (Slave)	-
	-	-	-	-	4-20 mA or 10-50 mA
Range (tank level)		0 - 96 ft (0 - 29 m)	0 - 138 ft (0 - 42 m)	0 - 128 Ft (0 - 39 m)	0 - 100 Ft (0 - 24 m)
Power Supply	-	20 - 65 Vdc 40 - 240 Vac*	18 - 65 Vdc	Via HART® Master	48 Vdc Loop Powered or Optional 15 - 48 Vdc 115 - 230 Vac On-board Supplies
Intrinsically Safe	-	-	-	Yes	-
Explosion Proof	Yes

* Optional Feature