High pressure transmitters

Model 249 Pressure Transmitter

Model 249 Pressure Transmitter

The Model 249's small size allows flexibility in tight spaces, while the welded body, stainless steel connector and sealed adjustments ensure protection against contamination.

The “49” series utilizes three sensor technologies to achieve top performance through all pressure ranges. For ranges 0-5 to 0-150 PSI, a silicon piezoresistive sensor provides extremely accurate readings and high overpressure protection. Bonded foil strain gage sensors are more reliable for pressure ranges 200 to 15,000 PSI [Sealed Top Adjustments] where transient spikes could destroy a silicon sensor.

For pressure measurement over 20,000 PSI, Viatran developed the “tube” sensor. Made from high strength stainless steel, this sensor ensures high accuracy and durability where diaphragm type sensors can rupture.Model 249 is equipped with electronic linearization, a compensation  circuit that corrects for non-linearities in the sensor.

Surface-mount technology (SMT) allows this complex circuitry to be incorporated into a small package and yield a linearity specification of ≤0.1% FSO (optional to 0.05%). Encapsulation of the surface-mount components of the PC board helps to prevent damage from severe vibration with top-mounted and sealed zero and span adjustments. An internal calibration circuit permits easy 2-point calibration without an external pressure source.

Optional performance features of the “49” series include improved accuracy, temperature compensation, special ranging, modified output, and alternate pressure ports.

Inquiry system 

Configure your own product according to your requirements and needs. If you are unsure of the configuration, provide us in the notes the necessary information about the existing sensor or product, even a competitor. We will be happy to help you find an alternative Viatran product. If your request is urgent, let us know. We will do our best to help you resolve this situation to your satisfaction as quickly as possible. If we have all the information, we are able to offer a model with minor differences, which is in stock and you can have another product available the next day.

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Model 249 Pressure Transmitter

Durable, dependable, accurate


Viatran’s “49” series is a robust, highly accurate pressure transmitter designed for the severe environments found in aerospace, engine test and fluid power control applications.

The Model 249's small size allows flexibility in tight spaces, while the welded body, stainless steel connector and sealed adjustments ensure protection against contamination.

The “49” series utilizes three sensor technologies to achieve top performance through all pressure ranges. For ranges 0-5 to 0-150 PSI, a silicon piezoresistive sensor provides extremely accurate readings and high overpressure protection. Bonded foil strain gage sensors are more reliable for pressure ranges 200 to 15,000 PSI  [Sealed Top Adjustments] where transient spikes could destroy a silicon sensor.

For pressure measurement over 20,000 PSI, Viatran developed the “tube” sensor. Made from high strength stainless steel, this sensor ensures high accuracy and durability where diaphragm type sensors can rupture.Model 249 is equipped with electronic linearization, a compensation  circuit that corrects for non-linearities in the sensor.

Surface-mount technology (SMT) allows this complex circuitry to be incorporated into a small package and yield a linearity specification of ≤0.1% FSO (optional to 0.05%). Encapsulation of the surface-mount components of the PC board helps to prevent damage from severe vibration with top-mounted and sealed zero and span adjustments. An internal calibration circuit permits easy 2-point calibration without an external pressure source.

Optional performance features of the “49” series include improved accuracy, temperature compensation, special ranging, modified output, and alternate pressure ports.

Performance characteristics

Full Scale Pressure Ranges 0-5, 15, 25, 50, 100, 200, 300, 500, 1K, 1500, 2K, 3K, 5K, 7.5K,10K, 15K, 20K, 25K, 30K, 40K, 50K, 60K 75K, 100K PSIA, PSIS, PSIG
Linearity (Best Fit Straight Line)

≤±0.10% FSO

For 100K PSI

≤±0.25% FSO

Hysteresis ≤0.06% FSO
Repeatability ≤0.03% FSO
Full Scale Output (FSO) 5 Vdc
Long Term Stability ≤±0.25% FSO per 6 months
Response Time ≤4 mSec to reach 90% of FSO
Temperature Effect on Zero ≤±1% FSO per 100°F (37°C)
Temperature Effect on Span ≤±1% FSO per 100°F (37°C)
Compensated Temperature Range 70°F to 170°F (21°C to 76°C)
Operating Temperature Range -40°F to 185°F (-40°C to 85°C)
Storage Temperature Limit -65°F to 250°F (-54°C to 121°C)

Electrical characteristics

Supply Voltage 12 to 30 Vdc
Power Supply Regulation Effect ≤±0.01% FSO per Volt
Output Signal 0 to 5 Vdc
Load Impedance 125K Ohms min
Bridge Impedance 5,000 Ohms nominal
Circuit Protection Output may be short-circuited indefinitely. Input polarity may be reversed. Over voltage protection to 1000 volts for <1 mSec duration
Electrical Connection 6-pin hermetic, bayonet-style, 303 SST weld mount connector
Pin Outs
PIN A+Power
PIN B-Power
PIN C+ Signal
PIN D- Signal
PIN ECalibrate
PIN FCalibrate

Materials of Construction

Wetted Parts

5 thru 150 PSI316, 304 SST

200 thru 15K PSI15-5 PH SST

20K - 100K PSIStainless Steel

Housing 316L SST
Weights 15 oz, nominal
Identification Laser etched onto body

Mechanical characteristics

Pressure Connection

0-5 thru 0-15K PSI1/4" - 18 NPT Female (0-3.3 thru 0-1034 bar)

0-20K thru 0-50K PSI1/4" F250-C High Pressure Tube (0-1378 thru 0-3447 bar)

0-60K thru 0-100K PSI5/16" F312C High Pressure Tube (0-4136) thru 0-6894 bar)

Proof Pressure

5 thru 150 PSI3X range minimum

151 thru 15K PSI1.5X range

20K - 100K PSI1.2X range

Burst Pressure

5 thru 150 PSIConsult Factory

151 thru 15K PSI5X range or 30K PSI, whichever is less

20K - 100K PSI 1.5X range or 125K PSI, whichever is less

 

Pressure Cavity Volume

5 thru 150 PSI0.25 cu. in.

151 thru 15K PSI0.32 cu. in.

20K - 100K PSI0.10 cu. in.

Mounting Supported by process piping or optional mounting bracket

Options 

 

Drawings

 

 

 

Model 24B Pressure Transducer

0-5 Vdc output, 0-100 to 0-30K psi, Solid Machined Sensor

Viatran’s 24B is one of our most versatile pressure transducers for industrial applications. The 24B measures from 0-100 PSI to 0-30,000 PSI with standard linearity of ≤ ±0.25% FSO.

Model 34B Pressure Transmitter

4-20 mA output, 0-100 to 0-30K psi, Solid Machined Sensor

Viatran’s 34B is one of our most versatile pressure transducers for industrial applications. The 34B measures from 0-100 PSI to 0-30,000 PSI with standard linearity of ≤ ±0.25% FSO.

Model 245 Pressure Transmitter High Range

0-7500 thru 100K psi, 0-5Vdc output, 0.15% accuracy

Viatran's Model 245 High Range pressure sensor is among our most accurate pressure transmitters for industrial test and research applications at higher pressures. Improved accuracies are available, as well as improved temperature performance. 

Model 345 Pressure Transmitter High Range

0-7500 thru 100K psi, 4-20 mA output, 0.15% accuracy

Viatran's Model 345 High Range pressure sensor is among our most accurate pressure transmitters for industrial test and research applications at higher pressures. Improved accuracies are available, as well as improved temperature performance.

Model 570 Pressure Transmitter

4-20 mA, 0-100 psi thru 100K psi, Hazardous Approvals

570 provides a rugged, sealed solution for hazardous rated and harsh environments.

Model RM570 Pressure Transmitter

4-20 mA, 0-100 Bar thru 0-350 Bar

RM 570 transmitters provide a rugged, sealed solution for the harsh industrial environments found in Rolling Mills and the metals industry.

Model 571 Pressure Transmitter

Sealed External Adjustment, Hazardous Approvals, 0-100 thru 100K psi

571 is Viatran's answer to the requirement for Hazardous Location approvals with external sealed adjustments. 571 is rangeable, offering the user flexibility if measuring different pressure levels.

Model 870 Pressure Transmitter

mv/V output, 0-100 thru 100K psi, Hazardous Location Approvals

870 employs a solid machined diaphragm sensor which provides a rugged and reliable solution with excellent repeatability and resistance to pressure spikes. 870 hazardous approval options include Intrinsically safe and Explosion proof for US, Canada and Atex.

Certificates & Approvals

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