SENSITIVITY KNOB ADJUSTMENTS
The Sensitivity Knob is used to compensate for varying types of sludge density.
Knob
Setting
Probe
Attitude
Sensitivity
1
Ignoring the smallest solids
Low
5
Detecting all solids
High
Note: Sensitivity range set at factory. Range modification instructions available upon request.
IN THE FIELD
SLUDGE INTERFACE DETECTION
1. Rotate Sensitivity Knob to position [1] low sensitivity.
2. Lower
the
SID
probe all the way to the bottom of the tank. NOTE: If needed, increase sensitivity just
enough to light up all the lightbars. THIS IS THE SENSITIVITY BASELINE FOR THIS TANK
3. Slowly raise the
SID
probe out of the sludge blanket until most or all of the lightbars go out. At this level,
you have detected the sludge blanket interface.
4. Observe
the
SID
probe cable depth marker to determine the depth of blanket.
IN THE FIELD
FINE TUNING
IN THE FIELD
•
Now that you’ve established the baseline sensitivity for this tank, you can fine-tune the
SID
by increasing
the sensitivity above the baseline.
•
At the baseline sensitivity setting determined in the previous step, the probe is exhibiting an “all or nothing”
reading. At sensitivities higher than your baseline, you can detect the ragged edge on top of the sludge
blanket.
•
By lowering and raising the
SID
probe in and out of the sludge blanket interface at various sensitivity
settings above your baseline, you will get a feel for the
SID’s
“personality” and how it reacts to the
particular influents at your plant.
MAINTENANCE
IN THE SHOP
•
Replace all 6 batteries as a group with new AA alkaline batteries of the same type and brand
•
Switch
SID
power switch-off when not in use to conserve batteries
•
Store
SID
for long periods with the batteries removed
•
Store
SID
in cool dry place and out of direct sunlight
•
Clean probe sensor eyes with mild detergent
Replacement Parts
S-10203-20 20-foot Cable Assembly with Sludge Sensor Probe
S-10203-30 30-foot Cable Assembly with Sludge Sensor Probe
1 year limited warranty.
Other Raven Environmental Products process control instruments:
F-10300
Bench top Centrifuge
(includes six 19mm Centrifuge Tubes)
B-10101-19
19 mm Centrifuge Tubes
(conical bottom with percentage markings)
B-10101-17
17 mm Centrifuge Tubes
(conical bottom with percentage markings)
C-10102 Settleometer
Kit
(Measures sludge settling characteristics)
