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Central Kagaku MLSS Meter, ML-54

Central Kagaku MLSS Meter, ML-54

Brand: Central Kagaku
Model No: ML-54
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The ML-54 MLSS meter is a portable sludge concentration meter that performs measurements of transmitted light to make simple on-site measurements of the concentration of activated sludge in sewage, waste, purification tanks and plant wastewater treatment systems and of sludge zone in nitrification and sedimentation tanks.

Features:
1. Sludge concentration and water depth can be measured simultaneously.
2. Automatic zero calibration functionality.
3. Extensive calculation functionality.
4. Sludge zone level detection (alarm on detection). Input the sludge zone concentration as a transmissivity percentage to obtain an alarm on reaching the sludge interface.
5. Low-battery-voltage warning display.
6. Automatic shutdown functionality for neglect to turn power off.
Power turns off automatically ten minutes after end of use (time to shutdown may be set by user).
7. Connect to printer (optional) to print measurement readings.

Specifications:

Measurement method:

transmitted light

Measurement range:
 

sludge density: 0-15000 mg/L
water depth: 0-15m (10m standard cable)
sludge zone: 10000mg/ L or more

Reproducibility:

Sludge density: readout ±3%
Water depth: ±0.1m

Readouts

Concentration: LCD, 5 digits, 1 mg/L minimum
Water depth: LCD, 3 digits, 0.1m minimum

Light source

LED

Sensor

Silicon photocell

calculations

JIS conversion, Y=aX+b
Sludge volume index, SVI=SV% MILSS%
Sludge return rate, r=SVI x MLSS% [100-(SVI x MLSS%)]
Span, X=A x C/B
Auto-zero

Specimen memory

1-99 specimens

Error messages

Zero alignment failure, print failure, low battery voltage, EEPROM error

Power source

Nickel-hydrogen batteries (4 cells)
Automatic shutdown functionality

Uptime

20 hours continuous use