Flytec 4010 * - Manual (Page 15)

Operating Instructions FLYTEC 4010 14
Speedometer
General remarks
A speed sensor (speedometer) can be purchased as an accessory. The speed sensors in the
3000 series can also be used with instruments in the 4000 series.
The accuracy of a vane wheel sensor is highly dependent on its point of attachment.
Additionally, the individual probes have an accuracy of approximately ±2.5% (industrial stan-
dard) resulting from manufacturing operations and it is possible for two probes not to display
exactly the same speed. These deviations can be largely corrected by the instrument. (
Ł opti-
on mode of the speedometer).
Display
If a vane wheel sensor is connected to your instrument, speed (in kph, mph or knots) relative
to the air can be shown in the lower display by pressing the key.
When a stall alarm is switched on, a warning tone sounds when speed falls below a certain
absolute speed. No stall alarm will sound at speeds that are below 10 kph. If the threshold is
set at 10 kph (or 5 mph), the stall alarm is switched off.
The current time can be shown every 30 sec in the SPEED display (
Ł option mode of the spee-
dometer).
Correction
If a probe always displays too much or too little, this deviation can be corrected at the third
level of option mode.
Speedometer setting mode
The response threshold of the stall alarm can be altered. If the threshold is set at 10 kph (or 5
mph), the stall alarm is switched off.
TIME
SPEED
MEMO