General Tools and Instruments DAF4207SD - Manual (Page 12)

SPECIFICATIONS
Embedded microcontroller Custom one-chip LSI device
Display type Liquid-crystal with green backlight
Display size 2.05 x 1.5 in. (52 x 38mm)
Parameters measured Air speed, temperature
Measurement range For temperature, 32° to 122ºF (0º to 50ºC); for air
speed: 0.4 to 30 m/sec, 1.4 to 126 km/hr, 0.9 to
78.3 mph, 0.8 to 68 knots, 79 to 6890 ft/min
Measurement accuracy For air speed: ± (2% + 0.2 m/sec),
± (2% + 0.8 km/hr), ± (2% + 0.4 mph),
± (2% + 0.4 knots), ± (2% + 40 ft/min);
for temperature: ± 1.5ºF (± 0.8ºC)
Measurement resolution For air speed: 0.1 ms, 0.1 km/hr, 0.1 mph,
0.1 knots, 1.0 ft/min; for temperature, 0.1ºF or ºC
Sampling time options 0, 1, 2, 5, 10, 30, 60, 120, 300, 600, 1800 or
3600 seconds (0 seconds to 1 hour)
Settable parameters Date, time, auto power off, beep sound, sampling time,
decimal point or comma decimal division, temperature
unit, air speed unit, optional thermocouple type (K or J)
Storable/recallable readings Maximum, minimum
SD card capacity 1 GB to 16 GB
Operating temperature 32º to 122ºF (0º to 50ºC)
Operating relative humidity 0 to 85%
Power source 6 Alkaline “AA” batteries or optional 9-VDC AC adapter
Power consumption 15 mADC (normal operation, with backlight off and SD
card not saving data); 36 mADC with backlight on and
card saving data; 48 mADC with backlight on and card
saving data
Dimensions of instrument 7.99 x 2.99 x 1.50 in. (203 x 76 x 38mm)
Weight of instrument 1.13 lb. (515g)
Diameter of probe head 2.83 in. (72mm)
12