Hach FT660 sc Manuel D'utilisation De Base page 24

Note: A warning can be used to trigger a relay. The sc controller can be used to set warning levels to identify the
severity of the warning. Refer to the sc controller user manual.
Warning
DARK READING
TEMPERATURE
5 VOLT
VOLTAGE IN
LASER V
LASER I
DATA LOG FULL
EVENT LOG FULL
OUTPUT MODE NOT
NORMAL
PMT VOLTAGE
REFERENCE VOLTAGE The reference voltage is out of operating
Diagnostics and Test menu
The diagnostic and test menu shows current information about the instrument. Refer to
To access the diagnostic and test menu, select Sensor Setup, [Select Sensor], Diag/Test.
Option
SOFTWARE VERS.
SERIAL NUMBER
INT TEMP
DEFAULT SETUP
POWER CHECK
24 English
Table 3 Warning list
Definition
Dark reading identifies too much light
(greater than 50 mNTU).
The internal temperature of the head
assembly is greater than 50 °C (122 °F).
The monitored voltage is outside the
range 4.5–5.5 V.
The monitored voltage is outside the
range of 9.08–14.3 V.
The laser voltage is out of the operating
range of 4.55–5.5 V.
The laser current is out of operating
range of 25–75 mA.
Only 30 minutes of storage space is
available in the data log.
Only 30 minutes of storage space is
available in the event log.
The instrument is being calibrated.
The PMT voltage is out of operating
range of 11.77–15.94 V.
range of 2.41–2.59 V.
Table 4 DIAG/TEST menu
Description
Shows the installed software version.
Shows the serial number of the instrument.
Shows the internal temperature of the instrument electronics in °C.
Sets the settings to the factory default settings. Makes the current calibration
invalid.
Shows the electrical statistics for the instrument.
Resolution
1. Make sure that the head assembly is
correctly installed on the body of the
instrument.
2. From the Main menu, select Sensor
Setup, [Select Sensor], Calibrate,
0 Electronics.
Make sure that the operating environment
is within the specifications. Refer to
Specifications on page 3.
If the operating environment is within
specifications, contact Technical Support.
Contact Technical Support.
Download the log from the sc controller to
prevent loss of data.
Complete calibration and/or calibration
verification.
Contact Technical Support.
Table 4.