Operation Manual
SYSTEM
OCR-504 Multispectral Radiometer
SECTION
C - START UP
I
MPORTANT! Both the RS-232 and RS-422 telemetry interfaces transmit
the same information. The RS-232 interface provides bi-directional
communication while the RS-422 is transmit-only. Normally, the RS-232
interface is used for configuring and testing your instrument. The RS-422
interface would normally be used for telemetry acquisition in the field
using longer cables. Most computer serial interfaces are RS-232.
Therefore, if you are using the RS-422 interface on the instrument, a
converter will be required to convert the output from the instrument to
levels compatible with your computer. In most cases, only one of these
telemetry interfaces is provided on a cable.
C
ONNECTING THE
C
OMPONENTS
When making connections, proper alignment on the connector pins is critical to
avoid damage. Visually ensure that the pins on the male connectors are
properly aligned with (and partially seated into) the sockets on their female
counterparts before pushing them together for final connection. Finally, ensure
that the locking sleeve or locking strap is securely fastened after connection.
The following is a generic step-by-step procedure for setting up your OCR-504
Multispectral Radiometer. You may use this procedure with any Sea-Bird
Scientific approved interface cable:
1. Ensure that, initially, the instrument is completely disconnected from the
power supply.
2. Ensure that the power supply is setup for the proper voltage.
3. If possible, turn off the power supply.
4. Mount the instrument in the desired position.
5. Connect the instrument side of the interface cable to the bulkhead on the
instrument.
6. Connect the telemetry-output side of the interface cable to the serial
interface of the computer. Use an appropriate level converter if needed.
7. Configure any software for use with the instrument.
8. Remove the protective cover from the end of the OCR-504.
9. Connect the power-input side of the interface cable to the power supply.
10. Apply power to the instrument (turn on the power supply).
Once your OCR-504 has been properly connected and power has been
applied, an initialization sequence will begin automatically to ready the device
for normal operation. This sequence takes approximately 4 seconds to
complete. Once finished, the instrument should begin normal operation. See
the
Conducting a Telemetry Test
section below to make sure that your
instrument is working properly. If this does not happen, remove power from the
instrument and repeat the connection sequence. If you are still experiencing
problems, contact a Sea-Bird Scientific customer service representative for
assistance.
See section
D - OPERATION
for more information on operating your
instrument.