TM202 Precision Dual Tachometer with Bendix Single Magneto Sensors
The TM202 is a precision dual tachometer that provides RPM data accurate to +/- 1RPM. It meets all the requirements of TSOC49b and provides the following functionality:
- RPM indication in both analog and digital format for both engines, including support for engines that require a limited RPM range
- Independent engine time recording
- Trend graph function representing RPM vs. Time for both engines simultaneously
This instrument kit includes two Hall Effect sensors for Bendix type single magnetos. The sensors are mounted in the vent hole (closest to the engine) of the magneto. The instrument will work on all 4, 6 and 8 cylinder aircraft engines.
Certification / Compliance
TSO C49b
Canadian STC
FAA STC
Certified as primary replacement
Environmental
DO-160F
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Software
DO-178B
DC Power Source
Input voltage 6 to 36 VDC
Power consumption 100mA
Load dump tolerance +60V
Direct spike tolerance +/- 60V
Cable spike tolerance > +/- 1KV
Operating Temperature
Constant operating -15ºC to +55ºC
Short term operating (1hr) -40ºC to +70ºC
Storage -55ºC to +85ºC
Signal Input
0-5V pulse width modulated square wave
Display Range
RPM 0 - 9000
Accuracy
AS404C +/- 1 RPM
LCD Display
Sunlight readable LCD
80º Viewing angle from all directions
Internal and external intensity control
Annunciator Output
100mA sink with reverse EMF protection
Interface Connector
DB-25
Software Functionality
Primary Engine RPM
Engine Time Display for both engines
Trend Graph Graphic display of engine RPM
Dimensions
2.45” X 2.45” X 0.9”
Weight (excluding harness)
4.05 oz
Finish
Black anodized 6061 aluminum