Display Test; Clock Settings - Hach ORBISPHERE3650 Manuel D'utilisation De Base

Display test

Choosing Troubleshooting, Display Test lets you perform a one-way communication between
computer and instrument.
Type a number in the Number box (you may also select one of three units positions for the LCD's
rightmost indicator bar as well). Then choose Send. The number and indicator bar placement should
appear on your instrument LCD.

Clock settings

Choose the Clock settings command to set the date and time in the instrument.
The first screen displays the current date and time as set in the instrument. If this is correct, choose
Ok, else if either date or time must be changed, choose Modify to bring up the next screen. Enter
the current date and time and choose Ok to store the entry into the instrument. All measurements will
be noted with the appropriate date and time when they are downloaded to the WinLog97 program.
Analog voltages view
The Troubleshooting, Analog Voltage View gives a real-time look at voltages used by the system
to transmit information about sensor current, temperature and pressure. This is useful when trying to
identify an instrument problem with a Hach Lange service representative either on-site or over the
phone.
When performing this test, if the system is over-range, you may receive a message that states, for
example, The current input is saturated. Similar messages will also appear, to warn when
temperature and pressure limits are exceeded.
The voltage limits for normal operation are:
• Current channel: -1.5 V to +1.5 V
• Temperature channel: +10 mV to +4 V
• Pressure channel: -100 mV to +100 mV
The Range window on the right side of the Current channel voltage indicates one of the four
instrument ranges: 0 (less sensitive) to 3 (most sensitive).
Measurements view
The Troubleshooting, Measurements View confirms, on your PC monitor, what your instrument
should be displaying on the LCD for gas concentration and sample temperature. Choose Cancel to
exit from this display.
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