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Insite IG
Model 1500 - Suspended Solids |
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Advanced Suspended Solids
 Monitoring |
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BENEFITS |
- Simple Calibration
- Low Maintenance
- Designed for the harsh
conditions of wastewater
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The InsiteIG Model 1500 suspended solids analyzer is a unique system
that combines advanced electronics with a solid-state optical sensor. No
other suspended solids system can compare with the features and benefits
of this revolutionary design.
The Model 1500 Analyzer was designed specifically for measuring the solids
concentrations in the activated sludge process up to 30,000 mg/L.
With four sensor options it is now possible to reliably measure solids
concentration from MLSS, RAS, WAS, clarifier effluent, and plant effluent.
All sensors can use either automatic air or water cleaning to virtually
eliminate routine maintenance necessitated by sensor fouling. The
sensor is calibrated in-place to the specific application and takes only a
few minutes to complete.
Continuous, on-line monitoring of solids
concentrations allows for real-time control of such parameters as solids
loading, sludge age, and return and waste concentrations. Active
control translates into a stable environment that allows the desired
microbiology to thrive, improving the efficiency of the plant and reducing
operating costs.
The sensors operate on the principle of
single gap light absorption as a means of detecting the presence of
suspended solids. The sensors utilize an infrared emitter to
minimize colour effects and compensates for emitter variations due to
temperature by measuring source brightness. The sensors incorporate
self-cleaning optics via air or water jet. Response time is 90% of
full scale in less than 60 seconds. Sensor drift is less than 1% per
year. Operating temperature range is 0 to 65 deg C. The
maximum cable length is 600m. Wetted materials are epoxy,
polyurethane, PVC or 316 Stainless Steel. Maximum pressure is
100psi.
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Sensor Options |
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Model 15 Submersible
Sensor
MLSS (Mixed Liquor Suspended Solids), RAS (Return Activated Sludge) and
WAS (Waste Activated Sludge)The Model 15 sensor utilizes optical principals based on the near infrared
(880nm) range. The Model 15 sensor is designed to measure the solids
concentrations in biological reactors, open RAS or WAS channels, and
clarifier influent channels.
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Model 15L Submersible
Sensor
Clarifier & Plant Effluent
The Model 15L sensor was designed to measure
very low solids concentrations typically found in secondary clarifier and
plant effluents. |
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Model 15T
Sensor
MLSS, RAS & WAS
The Model 15T was designed for
sample bypass lines of mixed liquor, return, or waste activated sludge. |
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Model 15PI
Sensor
RAS & WAS
The Model 15PI sensor was
designed to be inserted into a activated sludge return waste line. The
sensor is constructed of epoxy, polyurethane, and 316SS.
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Specifications |
Top |
| Measuring
ranges |
0 to 30,000
mg/l |
| Temperature
compensation |
0 to 65
degrees C |
| Calibration
Method |
Insitu using
gravimetric or portable as reference. |
| Memory backup |
Yes |
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Analyzer/Transmitter Outputs |
| Analog
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0 to 20 or 4
to 20 milliamp (user selectable) for suspended solids |
| Digital
communication |
Modbus RTU
RS-232 |
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Relay |
There are three independently programmable set point control relays
and one jet clean relay. Relay 1 & 2 are Form-C with contacts rated
10/6 amps resistive load at 125/250 VAC and relay 3 & 4 are Form-A
with contacts rated 10/6 amps resistive load at 125/250 VAC.
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Analyzer/Transmitter Mechanical Data |
| Enclosure
Rating (NEMA) |
NEMA 4X |
| Mounting
Configurations |
Horizontal
handrail Vertical handrail
Wall mount |
| Net Weight |
Shipping
weight is approximately 9 lbs. |
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SS Sensor Data |
| Sensor Drift |
Less than 1%
per year |
| Wetted
Materials |
Epoxy and
polyurethane |
| Temperature
Range |
0 to 65
degrees C |
| Maximum
Pressure |
100 psi |
| Measuring
Range |
0 to 30,000
mg/l |
| Response Time |
90% in less
than 60 seconds |
| Principle of
Operation (measuring principle of sensor) |
The sensor
operates on the principle of single gap light absorption as a means of
detecting the presence of suspended solids. The sensor utilizes an
infrared emitter to minimize color effects and compensates for emitter
variations due to temperature by measuring source brightness. It
incorporates self-cleaning optics via air or water jet. |
| Sensor Cable |
4 conductor,
22 AWG, polyurethane jacket |
| Cleaning
System |
Air or water
wash option available. Strongly recommended that one be utilized. |
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Sensor/Analyzer Data |
| Documentation
Provided |
Operator
Manual, Packing list, Mod bus RTU appendix |
| Installation
and Start-Up Requirements |
General Installation
- A rear rail mounting kit is available for the standard enclosure
(see Drawing IIG01N010). This mounting kit is design for a standard
2" handrail but can be adapted to square or angle handrails as well.
- Mount the sensor in the desired location. InsiteIG can supply a
sensor handrail mounting kit that easily mounts to most handrails
and slide locks the sensor into place with out the use of tools.
(see drawings IIG03N004 & IIG03N005). Again, this sensor mounting
kit is design for a standard 2" handrail but can be adapted to
square or angle handrails as well.
- Open the enclosure of the Suspended Solids Analyzer. Pass all
connection cables through ½" conduit or glands in the bottom of the
enclosure (conduit fittings and glands not supplied). The sensor
input connections are made to the terminal block labeled TB5 (see
drawing IIG01R011). The four wires are color coded and there is a
cable shield. Connect the RED wire to the terminal labeled "RED".
Connect the GREEN wire to the terminal labeled "GRN". Connect the
WHITE wire to the terminal labeled "WHT". Connect the BLACK wire to
the terminal labeled "BLK". Connect the cable SHIELD to the terminal
labeled "SHLD". Power connections are made to the terminal block
labeled TB3. The analog output is available on the terminal block
labeled TB1 and the relay outputs are available on the terminal
block labeled TB6.
Check switch S4 on the circuit board to be sure that it is set
for the type of power being used (115 volts or 230 volts). Turn
power "on" by using switch S3. Close and secure the enclosure.
After being turned on, the unit will initialize and then jump
into the "RUN" mode and begin displaying the Suspended Solids
content.
Whenever the sensor is removed from the process, the sensor
should be allowed to stabilize for approximately 1 minute after it
is put back in the process.
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| Recommended
Spare Parts |
None |
| Maintenance
Requirements |
MAINTENANCE The analyzer does not
require any periodic maintenance if the jet clean option is selected
(strongly recommended). The sensor must be kept clean for accurate
readings. Normally, the jet clean system will adequately perform this
function. However, the sensor should be retrieved and cleaned manually
on a periodic basis to remove the heaviest fouling that may impair the
performance of the sensor. The frequency of this cleaning will vary
depending on the application. |
| Sensor
Storage Requirements When Out of Service |
None |
| Level of
Skill (required to operate, maintain and calibrate instrument) |
Minimal
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| Special Tools
or Other Devices Required for Maintenance and Calibration |
None |
| Warranty
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2 year |
| Annual Cost
of Replacement/Calibration Parts |
$0.00 |
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