VIATRAN

Model 555 Pressure Transmitter

Designed for harsh abrasive slurry, the 555 has a unique feature which allows for wet installation in less than an hour through the use of a pipe saddle with integral shutoff. External adjustments and corrosive resistant wetted materials make this an excellent choice for pulp and paper, waste water processing, slurry and sludge measurements.

PERFORMANCE

	Full Scale Pressure Ranges	0-50, 100, 150, 200, 250, 300, 500, PSIS
	Combined Accuracy (Non-Linearity, Hysteresis and repeatability)	50 - 100 PSI ≤±.5% FSO 150 - 500 PSI ≤±.3% FSO
	Full Scale Output (FSO)	16 mA at 70°F (21°C)
	Long Term Stability	≤±0.5% FSO per 6 months
	Pressure Connection Effect Zero Balance	≤±1% FSO
	Response Time (Mechanical & Eletrical Combined)	<20 mSec to reach 90% of Full Scale
	Temperature Effect on Zero	±1% FSO per 100°F (37°C)
	Temperature Effect on Span	±1% FSO per 100°F (37°C)
	Combined at 4:1 Range Down	70°F to 170°F (21°C to 77°C)
	Compensated Teperature Range	185°F (85°C) - Ambient
	Maximum Operating Temperature	250°F (121°C) - Fluid
	Minimum Operating Temperature	-40°F (-40°C)
	Storage Temperature Limits	-65°F to 250°F (-53°C to 121°C)

ELECTRICAL

	Supply Voltage:	12 to 30 Vdc
	Power Consumption	≤±0.02% FSO per volt
	Output Signal	4-20 mA at 70°F (21°C)
	Load Impedance	900 Ohms maximum at 30 Vdc
	Elevation	-100% of FSO
	Suppression	+50% of FSO
	Span Adjustment	Rangeable down 4:1 from standard range
	Range Calibration Signal	20% of FSPR externally switched
	Calibration Signal Accuracy	±1.0% FSO. The exact signal to pressure correlation is provided with each unit
	Circuit Protection	Varistor protected across the input leads for surges above 40V and currents to 250 Amps Peak with a pulse width of 20 µSec. Reverse polarity protected
	Bridge Resistance	5K Ohms nominal
	Insulation Resistance	≥200 MegOhms to case ground (≤5 nS)
	RFI/EMI	Negligible to 500 MHz at 5 Watts direct contact
	Electrical Connection	1/2” NPT (M), 18 AWG, 72”
	Wire Color Codes	Red +Power/Signal Black -Power/Signal Green Case Ground

MATERIALS OF CONSTRUCTION

	Enclosure Materials	Inconel X750 and 316L stainless steel
	Wetted Materials	Inconel X750 and 316L stainless steel
	Enclosure Classification	NEMA/Type 4X (1P68)

MECHANICAL

	Pressure Connection:	100 - 1000 PSI Flush Diaphragm
	Proof Pressure:	1.5 times URL
	Burst Pressure:	≥ 3 times rated URL
	Shock Limitation	100 g's
	Weight	70 oz (2kg)

CERTIFICATIONS

	FM	Intrinsic Safety: Class I, II, III, Division 1, Groups A-G, and AEx ia IIC, T4 at Ta=80ºC, T5 at Ta=40ºC, Indoor and Outdoor NEMA/Type 4X Hazardous Locations Nonincendive: Class I,II,III Div. 2, Groups A-G and Class I, Zone 2, Group IIC, T4 at Ta=80ºC, T5 at Ta=40ºC
	CSA (Pending)	Intrinsic Safety: Class I, Div. 1, A-D Class II, E-G, Class III, Ex ia IIC T4 at Ta=80ºC, T5 at Ta=40ºC
	ATEX	Intrinsic Safety: II 1 G EEx ia IIC, -20ºC T4, Ta 50ºC
	CE	EMC Directive 89/336/EEC and Low Voltage Directive 72/23/EEC EN 61010-101993/A2:1995: Low Voltage Standard EN 61326: EMC Conformity Standard PED Directive 97/23/EC EMC Directive 89/336/EEC

OPTIONS

	BB	Mini change electrical connector
	BP	Micro change electrical connector
	CL	Extra lead length (6 ft standard)
	DG	Improved temperature and compensation
	DK	Special shunt calibration
	EA	Special calibration run
	NG	ATEX Flameproof label
	NH	Customer specified identification
	NJ	CE label
	NK	ATEX Intrinsic Safety label
	NSR	Non standard range
	NX	CSA Intrinsic Safety label
	NZ	FM Nonincendive label
	TF	FM Intrinsic Safety label
	TJ	CSA Div / Zone 2
	TW	Russia Intrinsic Safety
	VD	G2” retaining nut
	Z ()	Alternate electrical connection
	ZU	irect coupled cable

ACCESSORIES

	Pipe Saddle with shutoff
	Conduit connection box
	Calibration text fixture