Hach Surface Scatter 6 User Manual
Catalog Number DOC09 Surface Scatter® 7 sc Turbidimeter USER MANUAL Edition 2 November 2006. The Surface Scatter 7 sc High Range Turbidimeter offers superior performance across a measurement range of 0 to 9999 NTU. The Hach Surface Scatter 7 sc Turbidimeter (SS7) is the original non-contact turbidimeter. This design minimizes sensitivity loss due to high turbidity samples; in fluids with high loads of suspended solids the design makes.
- Hach Surface Scatter 6 User Manual
- Hach Surface Scatter 6 Manual
- Hach Surface Scatter 7 Calibration
- Surface Scatter 7 Sc Turbidimeter
- Hach Surface Scatter 6 Turbidimeter
- Surface Scatter 7
- Hach Surface Scatter 6
47
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
.
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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.
44
Maintenance
6.4.3 Detector assembly replacement
The detector assembly, listed as a replacement item in
section 8.1
on page 51
, is a sealed unit that is replaced entirely (
Figure 20
).
1. Write down the controller setup for all analog outputs and/or
relays used with the SS7 sc.
Hach Surface Scatter 6 User Manual
2. Turn off the controller and disconnect it from power.
3. Disconnect the detector cable from the controller. Unscrew the
nut (
Figure 20
, item
8
) and remove it from the disconnected
detector cable.
Hach Surface Scatter 6 Manual
4. Open the SS7 sc enclosure door. Using a blunt object (¼-inch
diameter or less, e. g. the blunt end of a pen) push on the
bushing from the inside of the enclosure until it is free of the
strain relief and clamping fingers. Remove the grommet from
the detector cable.
5. Pull the detector cable through the strain relief. Open the cable
clamps (
Figure 20
, item
3
) and remove the cable.
Figure 19 Light source assembly
1
Shield assembly (Cat. No. 45299-00)
10 Spacer, light source (Cat. No. 45039-00)
2
Wavy washer (2x) (Cat. No. 45042-00)
11 Gasket (Cat. No. 45033-00)
3
Hach Surface Scatter 7 Calibration
Medium aperture (Cat. No. 45044-00)
Surface Scatter 7 Sc Turbidimeter
12 End plate (Cat. No. 45032-00)
4
Large aperture (Cat. No. 45045-00)
13 Body (Cat. No. 45027-00)
Hach Surface Scatter 6 Turbidimeter
5
Retaining ring (Cat. No. 45041-00)
14 Large spacer (Cat. No. 45037-00)
6
Lens holder (Cat. No. 45040-00)
15 Small lens (Cat. No. 31465-00)
7
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Small aperture (Cat. No. 45043-00)
16 Small spacer (4x) (Cat. No. 45038-00)
8
Large lens (2x) (Cat. No. 44114-00)
17 Screws (8x) (Cat. No. 5584-11)
9
Medium spacer (Cat. No. 45036-00)