| Model |
DT-105A-S12 /
DT-107A-S12 |
| Measuring Range |
0.10 - 25,000 rpm
with floating decimal |
| Accuracy |
±0.06 rpm: 0.10 -
999.9 rpm / ±0.6 rpm: 1,000.0 - 9,999.9 rpm / ±0.006 % of
reading ±1 digit (or 2 rpm max.): 10,000 - 25,000 rpm |
| Display |
5 digit 0.47" (12
mm) high LCD 5 digit 0.4" (10 mm)
high LED |
| Measuring Unit |
Revolutions: rph,
rpm
Feet: fph, fpm
Miles: mph Inches: ipm
Meters: mPH, mPM
Length: m, cm, inches, feet, yards
Total Revolutions: rev |
| Memory |
13 readings stored
in memory & retained for 5 minutes (last, max., min. & 10 extra
measurements) |
| Display Update Time |
1 second (typical) |
| Detection |
Optical coupler, 60
pulses / rev. |
| System Control |
Single-chip C-MOS
microprocessor |
| Over Range Indicator |
Flashing numerals |
| Voltage Requirement |
2 AA / 1.5 V
Batteries |
| Low Battery Indicator |
Flashing "LO BAT"
display / "B" display (DT-107A-S12) |
| Auto Power Shut Off |
Yes |
| Battery Life |
45-60 hrs approx. /
25 hrs approx. (DT-107A-S12) |
| Operating Environment |
Non-corrosive |
| Operating Temperature Range |
32° - 113°F ( 0 -
45°C ) |
| Construction |
Die-cast aluminum
housing |
| Weight |
0.9 pound (400g) |
| Dimensions |
7.2""L x 2.4""W x
1.8""H (182.5 mm x 60 mm x 46 mm) |
| Warranty |
1 year |
| Standard Accessories |
2 cone adapters,
funnel adapter, 3-1/2" extension shaft, NIST
certificate, carrying case, master wheel (12" cir.) |
| Optional Accessories |
FPM-12CBL / 12"
grooved wheel |
