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.
If you need more information do not hesitate to contact us.
Viatran Configuration Code:
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
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.
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.
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.
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.
4-20 mA, 0-100 psi thru 100K psi, Hazardous Approvals
570 provides a rugged, sealed solution for hazardous rated and harsh environments.
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.
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.
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.
Overview of Available Certificates and Approvals: Visit this link, which will take you to a page with a comprehensive list of current certificates and approvals for our products. Here, you can verify that our offerings meet the highest standards of quality and safety. More information
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