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ATS, ATA, ATHA, ATHS Tachometers and Tach/Hourmeters
The AT series tachometer is a rugged, transistorized instrument with solid-state
circuitry for indication of engine revolutions per minute (RPM).
It is equipped with a bracket for mounting into a standard 3-3/8
in. (86 mm) dash mounting hole.
The tachometer’s full 270° sweep of the pointer gives an accurate indication on a large easy–to–read scale. The dial can be illuminated for night reading.
ATA models sense engine speed in conjunction with an engine-driven charge alternator; ATS models work with a flywheel mounted magnetic pickup. ATHA and ATHS models are also equipped with a digital hourmeter to record the elapsed running time of an engine.
Features:
- Sensing from magnetic sensor (ATS, ATHS) or
battery charging alternator (ATA, ATHA) - High visibility analogue readout, 270° sweep
- Reliable air-core movement
- Easy calibration through dial lighting
- Powered by 12 VDC battery. Optional ATVC 24V to 12V converter.
Literature:
For more information about this product, you can view the related literature here:
- Sales Bulletin (TAH-97026B)
- Installation Instructions (00-02-0258)
2nd March 2007 - Product advisory note
Murphy UK has identified a potential failure of AT series tachometers when used with ATVC12/24-REV (sleeved resistor type) voltage converters and 24 VDC power supplies.
For full details of the models and date codes affected, please consult product advisory note yi6434 (PDF format, 220Kb)
Inside this section:
Vibration / shock switches:-
- EVS - Electronic Vibration Switch
- 20.SS series – ATEX approved, Eex-d-IIC-T6 shock/vibration switch.
- VS2(EX) series – Shock and vibration switch.
- VS94 – Shock and vibration control switch.
Timers:-
- 5T, 15T, 12T, 24T Timers – Mechanical time switches.
Tachometers, hourmeters and speed switches:-
- TM series hourmeters – Electromechanical hourmeters.
- ATS, ATA, ATHA, ATHS – Tachometers and tachometer/hourmeters.
- MT90 – Digital tachometer
- MTH6 – Digital tachometer, hourmeter & adjustable overspeed trip.
- SHD30/SHD30-45 – Digital tachometer and hourmeter with adjustable overspeed trip point.
- HD9063, OS77D, SS300 – Selectronic® speed switches.
- 3ST – 3 point speed trip relays.
- MP series – Magnetic pickup speed transducers.