Detailed information on the online sludge concentration (MLSS) monitoring instrument series (Markland 502)

Application of near-infrared light for analysis and monitoring of sludge concentration.

Online Sludge Concentration (MLSS) Monitor (Markland 502TP)


■ Features:
*Automatic button calibration
*Ultrasonic self-cleaning
*Intelligent microcontroller instrument
*Advanced self correction ability
*A comprehensive error capture system
*System reset key
*Automatic power damping
*Linearly output 4-20 mA with% S.S
*No light pollution
*No sensitivity to color
*High and low level% S.S. setting relay
*Liquid Crystal Display (LCD)
*Programmable keyboard

Technical performance indicators:

*Range: 0.1% (1000mg/L) -10% (100000mg/L) The precise range of material variation is caused by changes in sound attenuation
*Accuracy: ± 1000mg/L-5% of the full range (depending on the sound attenuation of special materials)
*Power supply: 110/120VAC, 220/240VAC, 50/60Hz, 15W
*Temperature: Liquid: 1 ℃ -45 ℃ Controller: - 20℃—50℃
*Pressure: 60 p.s.I.g (4 bar) (400 kPa)

● Output:
*LCD 2x20 digital LCD display screen
*4-20mA signal output, linear with% S.S
*2 DPDTs, 5A, relays, independent adjustable zero setting
*RS-232 output communication interface
*RS-485 series interface (option)

*Calibration: Automatic calibration in water (zero position) and liquid with known% S.S. concentration
*Attenuation: Automatic dynamic attenuation.
*Response time: 30 seconds to 1 minute (maximum) depending on the homogeneity of the mud
*Wire length: 15 meters
*Protection level: IP-67
*Dimensions: NEMA-4X (IP-67) 343mm (13 1/2 ') × 229mm (9') × 200mm (7 7/8 ')
*Size and Material:
502-IL steel convex edge axial pickup, total length 458mm (18 feet), installation type and diameter suitable for the flange of the pipeline
502-TP PVC probe cover, stainless steel decoration, 150mm (6 feet) horizontal distance, 1-foot Sch, 80 pipe rod x 4 meters (12 feet) long