Campbell OBS-3A Especificaciones descargar pdf (Pagina 23)

Section 3. Operations

3.13 Scheduled Sampling

Use this mode when you want the OBS-3A to sample at specific times,

scheduled by hours and minutes, on a 24-hour clock.

1. Request Barometric Correction from the OBS menu. Be sure to do this

while the OBS-3A is at the surface. Doing so when the instrument is

submerged will result in large depth errors.

2. Click

and select items as described in Cyclic sampling section.

3. Use the Start Times block to schedule sampling.

4. Click Start Sampling to record data. Monitor the data window to verify

that data are being logged.

5. Switch the COM port off (red) with the

icon.

6. Unplug test cable; install dummy plug and locking sleeve. The instrument

is ready for deployment.

3.14 Setpoint Sampling

Use this mode when you want the OBS-3A to sample at a faster rate during

events such as storms, floods, dredging operations, and construction. The OBS-

3A will switch from the slow to fast sampling rate when the setpoints and

logical conditions you select are exceeded. It will return to the slower rate

when the selected setpoints and logical conditions are met.

1. Request Barometric Correction from the OBS menu. Be sure to do this

while the OBS-3A is at the surface. Doing so when the instrument is

submerged will result in large depth errors.

2. Click

and select items as described in Cyclic sampling section.

3. Select SLOW Interval and FAST Interval in seconds.

3-11

1 2 ... 18 19 20 21 22 23 24 25 26 27 28 ... 57 58

Sin comentarios

Campbell OBS-3A Especificaciones Pagina 23