Hach-Lange FILTERTRAK FT 660 sc Basic User Manual - Manual (Page 21)

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.
Table 3 Warning list
Warning Definition Resolution
DARK READING Dark reading identifies
too much light (greater
than 50 mNTU).
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.
TEMPERATURE The internal temperature
of the head assembly is
greater than 50 °C
(122 °F). 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.
5 VOLT The monitored voltage is
outside the range 4.5–
5.5 V. Contact Technical Support.
VOLTAGE IN The monitored voltage is
outside the range of
9.08–14.3 V.
LASER V The laser voltage is out
of the operating range of
4.55–5.5 V.
LASER I The laser current is out of
operating range of 25–
75 mA.
Table 3 Warning list (continued)
Warning Definition Resolution
DATA LOG FULL Only 30 minutes of
storage space is
available in the data log. Download the log from the sc
controller to prevent loss of
data.
EVENT LOG FULL Only 30 minutes of
storage space is
available in the event log.
OUTPUT MODE
NOT NORMAL The instrument is being
calibrated. Complete calibration and/or
calibration verification.
PMT VOLTAGE The PMT voltage is out of
operating range of
11.77–15.94 V. Contact Technical Support.
REFERENCE
VOLTAGE The reference voltage is
out of operating range of
2.41–2.59 V.
Diagnostics and Test menu
The diagnostic and test menu shows current information about the
instrument. Refer to
Table 4 .
To access the diagnostic and test menu, select Sensor Setup, [Select
Sensor], Diag/Test.
Table 4 DIAG/TEST menu
Option Description
SOFTWARE VERS. Shows the installed software version.
SERIAL NUMBER Shows the serial number of the instrument.
INT TEMP Shows the internal temperature of the instrument
electronics in °C.
DEFAULT SETUP Sets the settings to the factory default settings. Makes the
current calibration invalid.
POWER CHECK Shows the electrical statistics for the instrument.
English 21