Tavis Corporation
Tavis Corporation
3636 Highway 49 South
Mariposa, California 95338
Website: www.taviscorp.com

Toll Free: 800-842-6102
Phone: 209-966-2027
Fax: 209-966-3563
Email: applications@taviscorp.com
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Tavis sensors are currently monitoring cockpit instrumentation cooling air pressures on fighter jets, measuring bleed air pressures on military aircraft, indicating torque pressures on commercial turboprops, keeping UAVs aloft with fuel system controls, and more. Landing gear braking system pressures and even airliner waste tank level sensors are also part of the Tavis aircraft repertoire.




Existing designs provide capabilities such as:
  • Contamination tolerance and self-draining features to handle ingestion of debris and moisture.
  • Δ-Δ pressure measurements (comparing 2 differential pressures to each other in a single instrument – e.g. upstream and downstream flow rates)
  • Bi-directional overpressures:
    • Proof pressures as high as 333 times full scale
    • Reverse proof pressures as high as 133 times full scale
  • Connector or pigtail configurations
  • Voltage or current loop output
  • Wet – Wet capability without the need to coat or protect diaphragm (non-contact, metallic diaphragm without any electrical connections)
Unit of Measure

General Specifications

Pressure Range1 N/A ΔP: 0 - 39 psid ΔΔP: 0 - 4 psid

Proof Pressure

 N/A -60 to +110 psid

Line Pressure

 N/A 0 - 275 psig

Burst Pressure

 N/A >825 psig line

Sensor Type

 N/A Dual Variable Reluctance

Weight

 N/A <0.95 lb

Wetted Materials

 N/A 17-4 PH CRES Inconel 600/625

Construction

 N/A All-welded Gage Metal Diaphragm Differential Wet - Wet

Fittings / Ports

 N/A ¼ and 1/8 Flared Tube Fittings

Electrical Specifications

Input Voltage

 N/A 22 - 29 VDC

Output Signal

 N/A 0.5 - 9.0 VDC

Power

 N/A <15 mA

Electrical Interface

 N/A 4-conductor shielded/jacketed cable

Reverse Polarity Protection

 N/A Yes

Isolation

 N/A >100 MΩ @ 100 VDC

Output Impedance

 N/A <1000 Ω

Environmental Specifications

EMI

 N/A CE03, CE07, RE02, CS01, CS02, CS06, Chattering Relay, RS02 Power Frequency, RS02 Spikes, RS03 MIL-STD-461C MIL-STD-462

Compensated Temps

 N/A -10 ºF to +190 ºF
Survival Operation: -40 ºF to +190 ºF

Vibration

 N/A 14.6 grms

Media

 N/A JP4, JP5, Air

Performance Specifications

Static Error Band2 N/A See TEB

Thermal Error2

 N/A See TEB

Total Error Band (TEB)2

 N/A Custom flow rate voltage limits
Frequency Response3 N/A Custom: -3 dB @ 5 Hz or less
  • 1 The designs above are intended to convey just a few capabilities currently used on aircraft for discussion purposes. Tavis specializes in custom configurations and capabilities for your specific application. Discuss your application requirements with our engineers for a smooth flight.
  • 2 Many error band definitions and limits are possible, and these actual error bands are too specific to delineate herein. A clear definition and understanding of any error band is critical, and many manufacturers’ published errors or accuracies can be very misleading. Please consult Tavis regarding your specific error band requirements.
  • 3 Frequency Response given is for electronics only. Actual frequency response will depend on pressure range and media.