Sulfates

Applications

Drinking water
Waste water
Raw water
Process control

Description

The determination ranges of the sulfate analyzer vary from 0.5 to 5000 mg/L SO₄^2- using internal dilution module.

Method

This method is an adaptation of the turbidimetric method to measure sulfates. Sulfate ions are precipitated as barium sulfate with an excess of barium chloride. A conditioning reagent is added to maintain the barium Sulfate suspension. When the reagent is added to a sample containing Sulfate, it will cause turbidity in the sample. The absorbance (turbidity) intensity is proportional to the Sulfate concentration in the sample and is measured at 430 nm.

Reagents

Standard solutions

Features

Range (Ø 26 mm)	50 ppm
Range (Ø 16 mm)	100 ppm
Range (with dilution)	8000 ppm
Wavelength	430 nm
Number of reagents	2
Min. analysis time	6 minutes

Technical Specifications

Model	3S-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
Material	Epoxy-coated stainless steel AISI 304
Dimensions (H x W x D)	604 x 380 x 210 mm (23.6 x 14.8 x 8.2 in)
Weight	20 kg (44 lbs)
Power Supply	Input Voltage: 115 VAC,230 VAC,24 VDC Power consumption: max. 80 W
Output signals	2 x 4-20 mA analog outputs Modbus via RS485,Ethernet
Alarms	2 SPDT programmable voltage-free relays
Digital Input	None, Online, Start Extra, Skip Idle, Emergency Stop
Ambient Temperature	5 - 45 °C (41 - 113 °F)
Ambient Humidity	10 - 90 % RH (non-condensing)
Protection Grade	IP54 (indoor only, outdoor use possible with external cabinet, not included)