Installation Checklist; User Interface - Hach ORBISPHERE3650 Manuel D'utilisation De Base

Connection
Note: If you use an adapter for the connection to the PC, make sure it is designed for this purpose and, thus, has
all nine pins accessible. Some 25-to-9 pin adapters are supplied for specific use, such as a mouse, and these may
have only certain pins available.
It is not necessary to keep the PC connected to the instrument during measurement. This connection
is required for downloading stored measurements, real-time monitoring, reviewing and changing
configuration parameters and testing the instrument from the PC.

Installation checklist

Instrument clock setting
If you use the instrument to store measurements for downloading to a PC, you should verify the date
and time settings of the instrument's internal clock, as described in
Electrochemical sensor
Shipping conditions can have adverse effects on the sensor, thus you should perform a sensor
service as described in the accompanying Sensor Manual before trying to make measurements.
Flow chamber
The model 32007F flow chamber's inlet and outlet should be free of any obstructions. Regulate the
sample flow using the adjustment knob on top of the flow chamber.
When switching from liquid to gaseous samples, ensure that the sensor membrane is dry. Ensure
that the gas from the exit tube of the flow chamber (in gaseous mode) is released at atmospheric
pressure and that it is constant.
Storage when not used
At the end of the workday, run clean water through the flow chamber to prevent passageways from
clogging. You may wish to repeat preconditioning (see
to the next use.
If you do not expect not to use your sensor for more than a few months, you should clean the sensor
as instructed in the Sensor Manual and then store it dry, without electrolyte, and with the calibration
cap in place for protection.

User interface

Keypad and function keys
The front panel of the instrument has a three-digit liquid crystal display (LCD). The LCD includes a
right-side marker to distinguish between gas concentration and temperature display. This marker
also indicates the measurement display units (ppm, ppb, %, etc.) depending on the instrument
model. To the LCD's right is a label showing the measurement units configured at the factory for your
application.
LEMO-6 Pin Description
Pin 1 Not used
Pin 2 RS-232 Transmitted Data (TXD)
Pin 3 RS-232 Received Data (RXD)
Pin 4 Not used
Pin 5 Ground
Pin 6 Not used
Pin 7 Not used
Pin 8 Not used
Pin 9 Not used
Preconditioning sensors
Clock settings on page 18.
on page 9) prior
English 7