Burkert – Type MS08 SAC 254 Sensor

SAC 254 sensor

The Type MS08 sensor is an optical sensor for measuring absorption in the UV range at 254 nm. This sensor can be used to detect dissolved organic matter in the water and thus provide a high degree of safety for drinking water production.

The SAC 254 and turbidity 530 values can be measured, as well as an application-specific correlation of the TOCeq, BODeq and CODeq. The measurement principle is optical absorption measurement at 254 nm and 530 nm for turbidity compensation and is implemented using 2 LEDs and a detector.

The optical path length is optimized for drinking water, but can be easily adjusted by the manufacturer.

type ms08

General Technical Data

Product properties
Material	Please make sure the device materials are compatible with the fluid you are using. Detailed information can be found in chapter “2.1. Chemical Resistance Chart – Bürkert resistApp” on page 5.
Photometer	Housing in stainless steel (1.4571/1.4404)
Flow cell	• Housing in POM • Seal in NBR • Screw in stainless steel 316 (A4)
büS interface	• Front side housing: PC (Polycarbonate) • Rear side housing: polyurethane potting resin, natural
Fixed connector and cable	• Cable in PUR • Screw connection in Zinc die casting, matte nickel-plated
Dimensions	Detailed information can be found in chapter “3. Dimensions” on page 5.
Photometer	333 x 48.3 mm (L x Ø ) with a 50 mm path
Flow cell	150 x 65 x 65 mm
büS interface	210 x 65 x 18 mm
Weight
Photometer	Approx. 2.3 kg
Flow cell	Approx. 0.8 kg
büS interface	Approx. 0.4 kg
Compatibility	With Online Analysis System Type 8905 Detailed information can be found in the data sheet of the online analysis system, see data sheet Type 8905  for more information.
Measurement technology	• Light source: 2 LED (254 nm, 530 nm) • Detector: photodiode
Measurement principle	Attenuation, transmission
Optical path	5 mm (others on request)
Measured variable	• SAC254 (Spectral Absorption Coefficient) • CODeq • BODeq • TOCeq, • Turb530
Measuring range	With 50 mm path
Performance data
SAC measurement
Measurement deviation	0.2 % of full scale
Measurement interval	≥ 10 s
Response time (t100)	10 s
Electrical data
Operating voltage
Photometer	24 V DC ± 10 % (through connector X8 of büS interface)
büS interface	24 V DC ± 10 % – residual ripple 10 %1.) (through connector X4 connected to Online Analysis System Type 8905. Detailed information can be found in the data sheet of the Online analysis system, see data sheet Type 8905 for more information.)
Power consumption
Photometer	≤ 1 W
büS interface	≤ 2 W (of module alone)
Current
büS interface	• Max. input current: 4 A for supply via X4 (M12, A-coded, plug) • Max. output current: 4 A in total with supply via X4
Output
Photometer	Ethernet (TCP/IP)
büS interface	Bürkert büS
Medium data
Fluid	Water without particles: drinking water, industrial water
Sample water
Temperature	+ 2…+ 40 °C (+ 36…+ 104 °F)
Pressure	• Photometer alone: 3 bar • With flow cell: ≤ 1 bar
Flow rate	With flow cell: 2…4 l/min
Inflow velocity	0.1…10 m/s (0.33…33 fps)
Process/Port connection & communication
Process connection	Hose connections of flow cell (6 or 8-mm inlet, 6-mm outlet)
Electrical connection	M12 male plug, A-coded (X4 (IN)) of büS interface
Data transfer
Internal communication	• Through büS (Bürkert system bus, CANopen protocol) • By status LED: with RGB-LED based on NAMUR NE 107 on the büS interface
Approvals and Certificates
Photometer	IP68 according to  IEC/EN 60529, NEMA 6P
büS interface	IP65, IP67 and IP69k according to EN/IEC 60529 (with cables connected and with protective caps on unused connections)
Directives CE directives	The applied standards, which verify conformity with the EU Directives, can be found on the EU Type Examination Certificate and/or the EU Declaration of conformity (if applicable).
Environment and installation
Ambient temperature Operating
Photometer	• Operating: + 2…+ 40 °C (+ 36…+ 104 °F) • Storage: – 20…+ 80 °C (- 4…+ 176 °F)
	• Operating: – 20…60 °C (- 4…+ 140 °F) • Storage: – 20…70 °C(- 4…+ 158 °F)
Relative air humidity	≤ 90 %, without condensation
Height above sea level	Max. 2000 m
Operating condition	Continuous
Equipment mobility	Fixed
Application range	Indoor and outdoor (Protect the device against electromagnetic interference, ultraviolet rays and, when installed outdoors, against the effects of climatic conditions)
Installation category	Category I according to UL/EN 61010-1
Pollution degree	Degree 2 according to UL/EN 61010-1

*For selecting thecorrect product please refer to the technical data, images and notes for proper use according to the data sheet, or contact Flu-Tech directly.

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