Timer mikrodetik dirancang untuk mengukur waktu rambat gelombang tegangan pada pohon. Sinyal dihasilkan oleh ketukan palu pada sensor start dan unit menampilkan waktu propagasi yang diukur. Dengan mengukur jarak antara kedua sensor, kecepatan dapat dihitung yang dapat digunakan untuk mendeteksi daerah yang membusuk atau lubang tersembunyi di antara kedua sensor.
usage instruction
- Connect the transducers to the timer box.
- Switch on the timer. Before each hit please press the “Reset” button. If you want to use the auto reset function, switch on the timer while the “Reset” button is held down. In this case the actual readout appears on the screen after each hit without pressing “Reset”.
- Transducers are identical. Please select the transducer, connected to the „Start” connector. A colour mark helps you to identify the start transducer. Hit the start sensor by using hammer. The hit should always be parallel with the direction of the nail. Use a rubber hammer for driving in the sensors. For the measurement use a 100 g steel hammer. Let the hammer spring back. After use, switch off the unit.
package content
- Microsecond Timer box
- Two SD02 sensors with integrated cables and BNC connectors
- Hammers: 100 g steel and rubber
- Leather case
- Aluminum reference bar (44 cm long)
- User’s manual
- Rechargeable batteries
- Battery charger
- USB-to-RS232 cable for PC connectivity (no RS232 port needed on the PC side)
- PC software for raw data acquisition and storage
technical specification
Time required for one measurement * less than 1 minute
Time measurement error ± 3 microseconds
Size ** 45 x 82 x 150 mm
Weight 347 g
Battery standard rechargeable 9V
Power consumption 320 mW
Device box plastic, not water-resistant
Screen 4 digit LCD screen
Sensors SD02 piezo sensor
Sensor connectors BNC
RS232
baud rate 2400 bps
data format ASCII
connector DIL 9, male
Operating temperature range 0-40 °C
*including mounting and removing both sensors
**without sensors