Hach-Lange SURFACE SCATTER 7 sc Turbidimeter - Manual (Page 49)

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Section 7 Troubleshooting
7.1 Error Codes
Errors are indicated by a flashing measurement value and a
flashing warning icon. Errors are defined in
Table 5 .
1. From the Main Menu, select SENSOR DIAG and confirm.
2. If multiple sensors are attached to the controller, choose
SELECT SENSOR>SS7 SETUP and confirm.
3. Select ERROR LIST and confirm. All active errors will display.
7.2 Warnings
Warnings are indicated by a flashing measurement value and a
flashing warning icon. Warnings are defined in
Table 6 .
1. From the Main Menu, select SENSOR DIAG and confirm.
2. If multiple sensors are attached to the controller, choose
SELECT SENSOR>SS7 SETUP and confirm.
3. Select WARNING LIST and confirm. All active warnings
will display.
Table 5 Error codes
DIsplayed error Definition
ADC FAIL
The ADC has failed. Try cycling power. If cycling power does not work, replace the detector
assembly (Cat. No. 71221-00).
LAMP FAIL The light source has failed. See section 6.4.1 on page 40 for lamp replacement instructions.
FLASH FAIL Datalog and event log will not work.
Table 6 Warning Codes
Warning
Number
Displayed Warning Definition/Resolution
1 DARK WARNING
Dark reading detects too much light. Close the SS7 sc enclosure and perform
ZERO ELECTRONICS (under the CALIBRATION menu).
2 TEMP WARNING
Sensor head internal temperature is higher than specified. Contact the
Technical Support Department. (> 70 °C)
3 DATA LOG FULL
Sensor data log is full. No additional data will be logged until sensor log is
downloaded into controller memory.
4 EVENT LOG FULL
Sensor data log is full. No additional data will be logged until sensor log is
downloaded into controller memory.
5 5 VOLT WARN Monitored voltage is outside the range of 4.5–5.5 V.
6 VIN WARN
Monitored instrument input voltage from sc100 is outside the range of
9.08–14.3 V. Check cables. Make sure only one SS7 sc is connected to sc100
and if any other probe is connected it can only draw 4 watts maximum.
7 LAMP VOLT WARN Monitored voltage is outside the range of 3.96–4.48 V.
8 LAMP CURR WARN Monitored current is outside the range of 1.67–2.75 Amps.
9 OUTPUT MODE WARN
Activated when the sensor is not in normal measurement mode (such as when
in calibration or verification mode).
10 AC UPDATE FAIL The application code update failed.
11 EXT FLASH FAIL External copy of the application code has failed. Self recovery should occur.