Water Quality


TSS Portable Handheld Meter (Turbidity / TSS / Sludge Level)

Three parameters within one instrument!

Compact, yet shockproof, and with an easy to read LCD display, the Hach TSS portable handheld turbidity / TSS / sludge level meter is a robust instrument ideally suited for the remote monitoring of municipal & industrial wastewater, drinking water and river water.

The instrument has three measurement modes:

• Single
• Timed interval
• Continuous

With four different calibration curves for suspended solids and one for turbidity, the Hach TSS portable handheld turbidity / TSS / sludge level meter is perfect as a verification instrument for process monitoring or as a calibration reference for turbidity & TSS sensors.

Measurement ranges for turbidity and suspended solids are:

• Turbidity:  0.001 – 9999 FNU
• Timed interval:  0.001 – 400 g/L respectively


Three Parameters in One Instrument

The Hach TSS Portable Hand-held Turbidity, Suspended Solids, and Sludge Blanket Level Instrument’s unique multi-beam alternating light method with infrared diode system gives it a broad measuring range for both turbidity and suspended solids in one portable handheld instrument.

Multiple Calibration Curves for Convenience

It stores up to four different calibration curves for suspended solids and one for turbidity. There’s no need for constant re-calibration for different locations or types of sludge.

Easy Sludge Blanket Levels

The sludge blanket level can be measured by setting the units to mg/L, g/L or percent. Calibrate the instrument and then slowly lower the sensor into the clarifier. The suspended solids concentration will significantly increase as it reaches the sludge blanket level. Once the blanket level is reached, examine the sensor cable which is marked every meter to determine the sludge blanket level depth from the water surface.

Air Bubble Compensation for Accuracy

The instrument software automatically compensates for air bubbles to prevent its influence on the measurement. Turbidity is pre-calibrated with a calibration curve stored in the instrument. For suspended solids, each of the calibration curves can be closely adjusted to the laboratory results because each calibration curve can use up to three points per curve plus a zero value.

Durable Materials for Long Life

The probe is made of polished stainless steel with a scratch-resistant sapphire window to withstand harsh environments. Polished stainless steel helps keep particles from sticking to the surface of the probe. The internal memory stores up to 290 measuring values, including time, date, measurement, location, and homogeneity. Three operating modes are available: single, interval, or continuous.

Cable Length 10 m cable with marks for distance
Current Input Approx. 60 mA
Diameter 40 mm
Case L: 450 mm (17.7 in)
Meter (H X W X D): 110 x 230 x 40 mm (4.33 x 9.06 x 1.57 in.)
Probe (Ø X L) 40 mm x 29 cm (1.57 x 11.42 in.)
Display Alphanumerical display, 4 rows of 16 characters
Kit? Yes
Length 290 mm
Material Sensor Body: stainless steel
Measurement Modes Continuous measurement, integration time settings 0 – 1000 seconds
Measuring Principle Combined multiple beam alternating light method with infrared diode system and beam focusing.;
Turbidity: 2-channel 90° scattered light measurement in accordance with DIN/EN 27027/ISO 7027; additional measurement value verification through six-channel multiple-angle measurement; Solids: Modified absorption measurement; six-channel multiple-angle measurement
Measuring Range TSS 0.001 – 400 g/L (upper range depending on sample characteristics)
Measuring Range Turbidity 0.001 – 9999 FNU
Memory Up to 290 measuring points
Operating Pressure 0 to 10 bar (0 to 145 psi)
Operating temperature range 0 – 60 °C
Power Automatic shut down after 4 minutes (if no button has been pressed and no permanent measurement is activated)
Precision Suspended Solids < 4 % ± 0.001 g/L , whichever is greater
Precision Turbidity < 3 % or ± 0.02 NTU , whichever is greater
Pressure Range Max. 10 bar
Protection Class Probe IP68; Control unit IP 55
Range TSS 0.001 – 400g/L
Turbidity 0.001 – 9999 FNU
Relative Humidity 0 – 95 %
Suspended Solids: 0.01 at 1 – 9.999 g/L
Suspended Solids: 0.1 at 10 – 99.9 g/L
Suspended Solids: 1 at greater than 100 g/L
Resolution turbidity
0.001 @ 0 – 0.999 NTU
0.01 @ 1 – 9.99 NTU
0.1 @ 10 – 99.9 NTU
1 at greater than 100 NTU
Sensor Cable 10 m
Warranty 12 months
Weight Probe: 3.5 lbs (1.6 kg); Meter: 1.2 lbs (0.54 kg)
Wetted Materials Probe: stainless steel
Sensor Window: sapphire
What’s included? Turbidity, Suspended Solids and Sludge Level probe, meter, rechargeable batteries, user manual, carrying case
Please note the battery charger is not included
Width Meter: (9.1 in)
Width 2 Case: 450 mm (17.7 in)
Please consult with Aqualab before ordering.

Available models include:

  • TSS Portable Hand-held Turbidity, Suspended Solids, and Sludge Level System
    Product number# LXV322.99.00002
TSS Portable User Manual

TSS Portable User Manual

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Additional files
TSS Portable Quick Start Guide

TSS Portable Quick Start Guide

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