This product appears in the ERE Sludge & Sediment Catalogue 2025
Rolls-Royce
Bureau Veritas
Renouveau La Fontaine
Englobe
National Defence
Government of QuébecOverview
Features
• LED beam automatically adjusts its intensity to detect settled sludge blanket and supernatant interface levels in thick or thin sludges, or in light flocs
• Sludge level interface detection is not distorted by the inclined plates of lamella separators
• Advanced self-diagnostics
• High intensity infrared beams
• Automatic beam intensity control
• 4 – 20 ma output linear with sludge interface level depth
• High & low sludge blanket depth set-point relays
Applications
• Clarifiers and thickeners.
• Gravity settlers and decanting tanks.
• Dissolved Air Flotation (DAF) units.
• Sequential Batch Reactors (SBRs).
• Sumps, pits, and inclined plate clarifiers.
• Municipal water and wastewater treatment.
• Industrial process plants (food, pulp & paper, chemical, and power generation).
How It Works
The Model 602 uses an optical probe to detect light reflected from suspended solids in the liquid.
When the sensor reaches the sludge blanket, the reflected light intensity changes. The system interprets this variation to determine the sludge level and automatically triggers outputs for control or alarm functions.
The controller continuously compensates for variations in solids concentration, maintaining accuracy in real-world operating conditions.
Compare models
Your selection is highlighted. Select a row to switch.| Part Number | Model | Description |
| MSE-602 | 602 | Reads sludge depth UP from tank bottom |
| MSE-602-UD | 602 UD | Reads sludge blanket location DOWN from liquid surface |
| MSE-602-DAF | 602 DAF | Reads sludge/liquid interface in Dissolved Air Flotation thickeners |
| MSE-602-LP | 602 LP | Special model for Drinking Water Plant upflow clarifiers where overlying water is very clear & sludge is thin (consult factory for further details) |
| MSE-602-DUAL | 602 DUAL | Uses 2 probes, one mounted 48 in. (122 cm) above the other to give 96 in. (244 cm) continous span |
| MSE-602-DUAL-UD | 602 DUAL UD | Uses 2 probes, one mounted 48 in. (122 cm) above the other to give 96 in. (244 cm) continous span |
Documents
Calibration and repair
Send it to our Montreal service team. We evaluate the instrument and send a detailed quote before any work starts.
Questions, answered
How fast will I get a price?
Send the quote request and a specialist replies within 4 business hours, Monday to Friday, 8:00 to 4:30 ET.
Can we pay on account or by purchase order?
Yes. With established credit, terms are Net 30 days, and you can send your purchase order with the quote request. We also accept Visa, Mastercard and American Express.
How is shipping charged?
On quotes and account orders, freight is F.O.B. Montréal: the carrier charge is worked out at shipment from the packed weight and dimensions, and added to your invoice. In-stock items can also be picked up the same day in Montréal (8605 rue du Champ-d'Eau).
Can I return it?
Yes, within 30 days of purchase, with a return authorization number from customer service first. A 25% restocking fee applies, unless it is a defect covered by the warranty. Special orders, hazardous materials, flammable liquids and gases can't be returned. Return policy
Can ERE calibrate or repair it?
Yes. Our Montréal service shop calibrates and repairs it in-house. Request service
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Swing Sampler
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