Low Range Differential Pressure, Hazardous Location Approval
Viatran’s 574 Series differential pressure transmitters are extremely accurate and durable units, designed specifically for test applications. 574 comes with hazardous location option and has sealed external zero and span adjustments. The variable capacitance sensing technology provides extremely high overpressure protection, and long range stability, as well as high accuracy of 0.15% BFSL.
Features
High Accuracy
Many Options available
ShuntCal
Low Pressure Applications
Viatran’s Model 574 differential pressure transmitter employs variable capacitance sensing technology for extreme reliability and high accuracy.
The 574 measures pressures from 5” WC to 100 PSI with over pressure protection to 3000 PSI.
The all welded 316 stainless steel construction allows the airtight and watertight 574 to be in corrosive environments, including salt air or caustic solutions.
External zero, span and calibration controls are hermetically sealed, yet are easily adjusted with Viatran’s magnetically coupled drive system.
The signal conditioner in the 574 allows for 5:1 ranging of the transmitter’s standard pressure range
Full Scale Pressure Ranges:
- 0-5, 10, 20, 50, 100, 300, 750″ W.C.D.
- 0-15, 50, 100 PSID
Nonlinearity (Best Fit Straight Line): ≤±0.15% FSO
Hysteresis: ≤±0.1% FSO
Repeatability: ≤ ±0.1% FSO
Full Scale Output (FSO): 16 mA at 70° F (21°C)
Resolution: Infinite
Long Term Stability: ≤±0.1% FSO per 6 months
Zero Shift with Base Pressure: ≤±2.0% FSO per 1000 PSI
Span Shift with Base Pressure: ≤±1.0% FSO per 1000 PSI
Zero Shift After 3000 PSI Overload:
- Side Angle: ≤± 0.1% FSO
- Alternate Angle: ≤±0.5% FSO
Compensated Temperature Range: 70°F to 170°F
Operating Temperature Range:
- 5″WC to 50″WC (0° F to +170° F)
- 100″WC to 100 PSI (-40° F to +170° F)
Storage Temperature Limits:
- 5″WC to 50″WC (0° F to +170° F)
- 100″WC to 100 PSI (-40° F to +170° F)
Temperature Effect on Zero: ≤± 1.0% FSO per 100° F
Temperature Effect on Span: ≤± 1.0% FSO per 100° F
Supply Voltage: 10 to 40 Vdc
Power Supply Regulation: ≤±0.02% FSO per volt over supply voltage range
Output Signal: 4 to 20 mA
Load Impedance: 1500 Ohms maximum at 40 Vdc
Zero Adjustment: -100% FSO elevation to +50% FSO suppression of the standard range
Span Adjustment: Rangeable down, 5:1 from standard range
Calibration Signal: 20% of FSPR externally switched
Calibration Signal Accuracy: ≤±1% of the stated value
Circuit Protection: Varistor protected across the input leads for surges above 40V and currents to 250 Amps peak with a pulse width of 8 x 20 µSec. (Reverse polarity protected)
Insulation Resistance: >1000 MegOhms to case ground at 40 Vdc and 70° F
Response Time: 10% to 90% FS (Faster response available with NF option.)
Electrical Connection: 1/2” NPT male, 3 wires, 18 AWG
Wire Codes:
RED + Signal / Power
BLACK – Signal / Power
GREEN Case Ground
Pressure Connection:
- 1/4” NPT female on 2-1/8” centers on flanges
- 1/2” NPT female on 2”, 2-1/8” or 2-1/4” centers with optional adapters
Proof Pressure: 3000 PSID and/or 2000 PSI base pressure
Burst Pressure: 4500 PSID and/or 4500 PSI base pressure
Diaphragm Displacement: 0.002 cubic inches at FSPR
Fill Fluid: Dow DC200 Silicone oil
Mounting: May be supported by process piping or by optional mounting bracket
Housing: 316 Stainless Steel
Wetted Parts: 316 Stainless steel and Viton O-Ring
Weight: 7 lbs.
Identification: Laser etched onto body
PERFORMANCE OPTIONS:
DG: Improved temperature compensation to ±1.0% FSO per 100°F
DJ: Submersible connector w/8’ cable
DK: Special shunt calibration setting
DQ: Cleaning for oxygen service
EA: Special calibration run
GE: Buna ‘N’ O-Rings
JJ: Loop powered direct mount indicator with explosion proof housing
NF: Fast response time
NH: Customer specified identification
PW: 1/8 DIN digital indicator
QC: Hastelloy wetted parts
NSR: Non standard range
ALTERNATE PRESSURE PORTS:
YL: 1/4” NPT (F) square flange
YQ: 1/8” NPT (F) square flange
APPROVAL & CERTIFICATE OPTIONS:
FA: Russian Metrology Certificate
MD: FM Intrinsically Safe
ME: CSA Explosion Proof
Note:
Application of some available options may affect standard performance.
