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Differential Pressure Transducer Model 274

Low Range Differential Pressure, 1000 psi line Pressure

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Viatran’s “74” Series differential pressure transducers/transmitters are extremely accurate and durable units, designed specifically for test applications. The variable capacitance sensing technology provides extremely high overpressure protection, and long range stability, as well as high accuracy of 0.15% BFSL.


Request a Quote

Features

High Accuracy
Many Options available



The Model 274 Differential Pressure Transducer measures pressure ranges from 5" W.C. to 100 PSID and provides a 0-5 VDC signal. All wetted surfaces, including flanges and diaphragms, are constructed of 316 stainless steel with a sealing Viton® O-Ring for excellent corrosion resistance. A standard 1,000 PSI static line pressure and single side overpressure rating are featured with these transducers. For applications that require a higher static line pressure rating, 3,000 PSI is available with optional flanges.
Model 274 also features an internal calibration circuit for easy field set-up, a quick disconnect electrical connection and external zero and span controls. A special option called fast response enables the unit to accurately respond to changes in pressure in approximately one tenth of the standard time.These features make the Model 274 ideal for most industrial test and flow applications.

Performance
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
≤±0.08% FSO
Repeatability
≤ ±0.06% FSO
Full Scale Output (FSO)
5 Vdc at 70° F
Resolution
Infinite
Long Term Stability
≤±0.1% FSO per 6 months
Zero Shift w/Line Pressure (%FSO/1000 PSI)
5” WC to 100” WC : ≤ 4%
300” WC to 100 PSI: ≤ 6%
Span Shift w/Line Pressure (%FSO/1000 PSI)
5” WC to 100” WC : 0 to -6%
300” WC to 100 PSI : 0 to -4%
Zero Shift After 1000 PSI Overload
Single Side: ≤± 0.1% FSO
Alternate Sides: ≤±0.5% FSO
Compensated Temperature Range
70°F to 170°F (21°C to 76°C)
Operating Temperature Range
0° F to +200° F
Storage Temperature Limits
-40°F to +250°F (-40°C to 121°C)
Temperature Effect on Zero
≤± 2.0% FSO per 100° F
Temperature Effect on Span
≤± 2.0% FSO per 100° F
Electrical
Supply Voltage
10 to 42 Vdc
Power Supply Regulation
≤±0.0001% FSO per Volt change over the supply voltage range
Output Signal
0 to 5 Vdc
Output Loading
3000 Ohms minimum
Current Draw
3.8 mA
Zero Adjustment
± 10 % FSO min. / ±20% FSO max.
Span Adjustment
± 10% FSO min. / ±20% FSO max.
Calibration Signal
80% of the FSPR, by shorting pins E & F
Calibration Signal Accuracy
≤±0.1% of the stated value
Circuit Protection
Reverse polarity protected
Insulation Resistance
>1000 MegOhms to case ground at 50 Vdc and 70° F
Response Time
10% to 90% FS Faster response available with NF option.
Electrical Connection
Bendix PT02E-10-6P, mates PT06E-10-6S (SR)
Pin Outs
Pin A + Power
Pin B - Power
Pin C + Signal
Pin D - Signal
Pin E Calibrate
Pin F Calibrate
Materials of Construction
Wetted Parts
316 Stainless steel and Viton O-Ring
Housing
304 and 316 Stainless Steel with an Aluminum alloy, black zinc-cobalt plated electrical connector
Weight
3.5 lbs. (6.5 lbs. with optional flanges)
Identification
Laser etched onto body
Mechanical
Pressure Connection
1/4" - 18 NPT female
Static Pressure
1000 PSI maximum (3000 PSI - optional)
Proof Pressure
1000 PSI single sided (3000 PSI - optional)
Burst Pressure
1500 PSI (4500 PSI - Optional)
Diaphragm Displacement
0.002 cubic inches at FSPR
Pressure Cavity Volume
Standard Flanges: 0.4 cubic inches
Optional Process Flanges : 1.5 cubic inches
Fill Fluid
Dow DC200 Silicone oil
Mounting
May be supported by process piping or by optional mounting bracket
Options
ELECTRICAL CONNECTION
B ( )
Alternate electrical connector
PERFORMANCE OPTIONS
DG
Improved temperature compensation to ±1.0% FSO per 100°F
DH
Special ranging
DK
Special shunt calibration setting
DM
Modified full scale output
DQ
Cleaning for oxygen service
EA
Special calibration run
GE
Buna 'N' O-Rings
NB
Alternate process flanges for increased pressure rating
NF
Fast response time
NH
Customer specified identification
NM
Alternate output signal (3mV/V)
ALTERNATE PRESSURE PORTS
Y ( )
Alternate pressure ports
Note:
Application of some available options may affect standard performance. Consult your Viatran representative for details.
Dimensional Data

Differential Pressure Transducer Model 274

Product Thumbnail

Differential Pressure Transducer Model 274

Low Range Differential Pressure, 1000 psi line Pressure

Viatran’s “74” Series differential pressure transducers/transmitters are extremely accurate and durable units, designed specifically for test applications. The variable capacitance sensing technology provides extremely high overpressure protection, and long range stability, as well as high accuracy of 0.15% BFSL.


Request a Quote

Performance
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
≤±0.08% FSO
Repeatability
≤ ±0.06% FSO
Full Scale Output (FSO)
5 Vdc at 70° F
Resolution
Infinite
Long Term Stability
≤±0.1% FSO per 6 months
Zero Shift w/Line Pressure (%FSO/1000 PSI)
5” WC to 100” WC : ≤ 4%
300” WC to 100 PSI: ≤ 6%
Span Shift w/Line Pressure (%FSO/1000 PSI)
5” WC to 100” WC : 0 to -6%
300” WC to 100 PSI : 0 to -4%
Zero Shift After 1000 PSI Overload
Single Side: ≤± 0.1% FSO
Alternate Sides: ≤±0.5% FSO
Compensated Temperature Range
70°F to 170°F (21°C to 76°C)
Operating Temperature Range
0° F to +200° F
Storage Temperature Limits
-40°F to +250°F (-40°C to 121°C)
Temperature Effect on Zero
≤± 2.0% FSO per 100° F
Temperature Effect on Span
≤± 2.0% FSO per 100° F

Electrical
Supply Voltage
10 to 42 Vdc
Power Supply Regulation
≤±0.0001% FSO per Volt change over the supply voltage range
Output Signal
0 to 5 Vdc
Output Loading
3000 Ohms minimum
Current Draw
3.8 mA
Zero Adjustment
± 10 % FSO min. / ±20% FSO max.
Span Adjustment
± 10% FSO min. / ±20% FSO max.
Calibration Signal
80% of the FSPR, by shorting pins E & F
Calibration Signal Accuracy
≤±0.1% of the stated value
Circuit Protection
Reverse polarity protected
Insulation Resistance
>1000 MegOhms to case ground at 50 Vdc and 70° F
Response Time
10% to 90% FS Faster response available with NF option.
Electrical Connection
Bendix PT02E-10-6P, mates PT06E-10-6S (SR)
Pin Outs
Pin A + Power
Pin B - Power
Pin C + Signal
Pin D - Signal
Pin E Calibrate
Pin F Calibrate

Differential Pressure Transducer Model 274

High Accuracy
Many Options available

The Model 274 Differential Pressure Transducer measures pressure ranges from 5" W.C. to 100 PSID and provides a 0-5 VDC signal. All wetted surfaces, including flanges and diaphragms, are constructed of 316 stainless steel with a sealing Viton® O-Ring for excellent corrosion resistance. A standard 1,000 PSI static line pressure and single side overpressure rating are featured with these transducers. For applications that require a higher static line pressure rating, 3,000 PSI is available with optional flanges.
Model 274 also features an internal calibration circuit for easy field set-up, a quick disconnect electrical connection and external zero and span controls. A special option called fast response enables the unit to accurately respond to changes in pressure in approximately one tenth of the standard time.These features make the Model 274 ideal for most industrial test and flow applications.

Materials of Construction
Wetted Parts
316 Stainless steel and Viton O-Ring
Housing
304 and 316 Stainless Steel with an Aluminum alloy, black zinc-cobalt plated electrical connector
Weight
3.5 lbs. (6.5 lbs. with optional flanges)
Identification
Laser etched onto body

Mechanical
Pressure Connection
1/4" - 18 NPT female
Static Pressure
1000 PSI maximum (3000 PSI - optional)
Proof Pressure
1000 PSI single sided (3000 PSI - optional)
Burst Pressure
1500 PSI (4500 PSI - Optional)
Diaphragm Displacement
0.002 cubic inches at FSPR
Pressure Cavity Volume
Standard Flanges: 0.4 cubic inches
Optional Process Flanges : 1.5 cubic inches
Fill Fluid
Dow DC200 Silicone oil
Mounting
May be supported by process piping or by optional mounting bracket

Options
ELECTRICAL CONNECTION
B ( )
Alternate electrical connector
PERFORMANCE OPTIONS
DG
Improved temperature compensation to ±1.0% FSO per 100°F
DH
Special ranging
DK
Special shunt calibration setting
DM
Modified full scale output
DQ
Cleaning for oxygen service
EA
Special calibration run
GE
Buna 'N' O-Rings
NB
Alternate process flanges for increased pressure rating
NF
Fast response time
NH
Customer specified identification
NM
Alternate output signal (3mV/V)
ALTERNATE PRESSURE PORTS
Y ( )
Alternate pressure ports
Note:
Application of some available options may affect standard performance. Consult your Viatran representative for details.

Differential Pressure Transducer Model 274

Differential Pressure Transducer Model 274

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