Phenol

PhOH

Applications

Industrial wastewater – where the presence of phenolic compounds in the industrial waste water adversely affects aquatic and human life directly or indirectly when discharged into public waterways, water sources or surface water.

Description

The 3S colorimeter is a compact analytical instrumentation for online analysis and process monitoring. The colorimeter is based on a color-developing chemical reaction carried out inside the analyzer's glass cell. The sample, coming from an external reservoir or process stream is autonomously grabbed by the instrument and mixed with the appropriate reagents to make the reaction happen. The analyzer uses an LED light source and a photodiode to photometrically measure the developed color intensity (absorbance). The absorbance is proportional to the concentration of the target chemical species (analite).

Features:

Low reagents consumption and analytical reliability thanks to our custom designed miniature peristaltic pumps
Dual compartment design to guarantee a complete separation between the electronics and the hydraulic section
Color touchscreen to show the last measured value clearly, and to set all the options and settings via an user friendly interface
Datalogger function with data history in graphical form and USB download
Automatic calibration, validation and cleaning to reduce down time and operator intervention, their frequency can be freely set by the user
Fully integrable in industrial automation via the analog outputs (2 x 4-20 mA channels), digital output (2 relays + ModbusRTU) and digital input (voltage free contact)

The determination ranges of the phenol analyzer vary from trace μg/L to 250 mg/L using the (optional) internal dilution module.

Method

The colorimetric determination of phenol in water is based on the reaction of phenol with 4-amino-antipyrine in the presence of potassium hexacyanoferrate(III) buffer solution to form a red colored antipyrine complex. The absorbance intensity is proportional to the phenol concentration in the sample and is measured at 525 nm.

Reagents

Standard solutions

Features

Range (Ø 26 mm)	1000 ppb
Range (Ø 16 mm)	5 ppm
Range (with dilution)	250 ppm
Wavelength	525 nm
Number of reagents	2
Min. analysis time	6 minutes

Technical Specifications

Model	CL
Sampling Mode	Batch, with freely settable frequency.
Sample	Pressure: Atmospheric Temperature: 5 ‐ 45°C (41 ‐ 113°F) Flow Rate: 80 to 500 mL/min Connection: 6 mm (¼-in.)
Drain	Pressure-free drain Connection: 12 mm (½-in.)
Input Streams	2
Cabinet Material	Epoxy-coated stainless steel AISI 304
Dimensions (H x W x D)	604 x 380 x 242 mm (23.6 x 14.8 x 9.4 in)
Weight	20 kg (44 lbs)
Power Supply	Input Voltage:115 - 240 VAC 50/60 Hz or 24 VDC (optional) Power consumption: max. 80 W
Output signals	2 x 4-20 mA analog outputs Modbus RTU via RS485
Alarms	2 SPDT programmable voltage-free relays
Digital Input	Online,Start Extra,Skip Idle,Emergency Stop
Ambient Temperature	5 - 45 °C (41 - 113 °F)
Ambient Humidity	10 to 90 % RH (indoor use only, outdoor installation possible with protective cabinet or shelter not included)
Protection Grade	IP54