Error List; Warning List - Hach Flow Paddlewheel Sensor Manual Del Usuario

W A R N I N G
Potential Electrocution Hazard. Only qualified personnel should conduct
the tasks described in this section of the manual.
If a measurement problem exists, complete the following steps.
1. Examine the sensor cable for physical damage.
2. If an interconnect cable and junction box are used, disconnect the
sensor and connect the sensor directly to the controller.
Sensor diagnostic and test menu
The sensor diagnostic and test menu shows current and historical
information about the instrument. Refer to
diagnostic and test menu, push the MENU key and select Sensor Setup,
[Select Sensor], DIAG/TEST.
Table 5 Sensor DIAG/TEST menu
Option Description
MODULE INFORMATION Shows the version and the serial number for the
sensor module.
SENSOR INFORMATION Shows the name and serial number that was entered
by the user.
CAL DATA Shows the number of days since the last calibration
and sets the offset value.
CAL HISTORY Shows a list of and details for each calibration.
RESET CAL HISTORY Resets the calibration history for the sensor (requires
service-level passcode). All previous calibration data
is lost.
SENSOR DATA Shows the number of days that the sensor has been
in operation and the current sensor signal reading in
Hz.
16 English
Table 5. To access the sensor

Error list

Errors may occur for various reasons. The reading on the measurement
screen flashes. All outputs are held when specified in the controller menu.
To show the sensor errors, push the MENU key and select Diagnostics,
[Select Sensor], Error List. A list of possible errors is shown in
Table 6 Error list for the sensor
Error Description
SENSOR [A, B, C, D] Sensor is missing or
MISSING disconnected.

Warning list

A warning does not affect the operation of menus, relays and outputs. A
warning icon flashes and a message is shown on the bottom of the
measurement screen. To show the sensor warnings, push the MENU key
and select Sensor Diag, [Select Sensor], Warning List. A list of possible
warnings is shown in Table 7.
Table 7 Warning list for the sensor
Warning Description
VOLUME FULL [A, B, C, The sensor volume is full. Reset the totalizer.
D]
LOW FLOW ON [A, B, C, The sensor flow is low.
D]
REPLACE SENS [A, B, C, The sensor needs to be
D] replaced.
CAL DUE A [A, B, C, D] The sensor calibration is
overdue.
CALIBRATE SENS [A, B, The sensor needs to be
C, D] calibrated.
CAL IN PROGRESS The calibration was
started but not completed.
Table 6.
Resolution
Examine the wiring and
connections for the
sensor and for the
module.
Resolution
Determine why the liquid
level is low and resolve
the issue.
Replace the sensor.
Calibrate the sensor.
Calibrate the sensor.
Return to calibration.