GeneralSpecifications Hamilton Visiferm

Optical DO sensor

GS 12J6K6E-A1st Edition

Dissolved oxygen is required for the survival and growth of many aquatic organisms, including fish. The concentration of dissolved oxygen may also be associated with corrosive and photosynthetic activity. The absence of oxygen may permit anaerobic decay of organic matter and the production of toxic and undesirable esthetic materials in the water. Main applications for this sensor are biotechnology, chemical industry, air surveillance, fish farming, water management and sewage water (gas and liquid phase).

The Visiferm utilizes luminescent technology and eliminates the typical drawbacks of membrane components. The measurement is unaffected by sample fouling or poisoning and virtually maintenance free with no membranes to replace, no electrolyte solution to replenish, no anode or cathode to clean or replace and long calibration intervals.

Features• Steam sterilizable, autoclavable and CIP suited• LDO technology is approved by ASTM as standard

method (D888-05) for DO and BOD measurement• No electrolyte solutions• No membranes on concerns about air bubbles,• Does not consume oxygen so passive

fouling will not affect DO readings• Measurement not affected by sample color or turbidity

Yokogawa Corporation of America 2 Dart Road, Newnan, Georgia U.S.A. 30265 Tel: 1-800-888-6400 Fax: 1-770-254-0928

2

A

B

CPower (LE)

D

( Temp)E

(Temp)F

Cathode

Anode

HG

Part no. Description

1W-242450-02 Visiferm DO 120

1W-242451-02 Visiferm DO 160

1W-242452-02 Visiferm DO 225

1W-242453-02 Visiferm DO 325

1W-242454-02 Visiferm DO 425

1W-242427 Visiferm DO sensor Cap

1W-242411 USB-RS484 ModBus Converter

1W-355194-03 Visiferm DO Demo Cable

GeneralThe Visiferm sensor is coated with a luminescent material. Blue light from an LED is transmitted to the sensor surface. The blue light excites the luminescent material. As the material relaxes and falls back into its ground state, it emits red light.

The time from when the blue light was sent and the red light is emitted is measured. The more oxygen that is present the shorter the time it takes for the red light to be emitted. The time delay can be expressed as a phase shift between the wave patterns of the Blue LED light and the Fluoresced light. This phase shift is inversely proportional to the oxygen concentration in the fluid.

CalibrationMost calibration techniques may be used, including air calibration, zero calibration, calibration by comparison to a hand-held DO analyzer or concurrent calibration of two sensors.In most moderate applications it is rarely necessary to calibrate the Visiferm, but still the frequency of calibration needs to be determined by site conditions and customer requirements. The Visiferm can be calibrated in Air or in an oxygen-free environment (zero point). A solution with 0 ppb O2 can be created by dissolving 2 gram of Sodium Sulfite (Na2SO3) in a beaker or cup with 100 ml water.Functional specifications

Measuring range : 4 ppb / 0.05% up to 300% air saturation

Accuracy : 80 ppb ± 4 ppb / 21 ± 0.2%vol / 50 ± 0.5%vol

Temperature : -10˚C…..80˚CPressure : -1 ….12 bar (press spikes up to 80

bar)Flow : No minimal flow requiredStorage Temperature : -10 ...50˚C

Dynamic specificationsT response 98% : < 30 sec at 25˚C, from air to NitrogenDrift : <0.2% vol Oxygen per week in air at

30˚CSensor specifications

Wetted parts : SS 316L DIN1.4435 Silicone FDA approved* EPDM FDA approved*

* Note: FDA approval for these materials can be downloaded from www.hamiltoncompany.com/eu.sensors/certificate_page.asp

Mounting : PG13.5 threadSensor length : 120,160, 215, 325 and 425 mm are

availableSurface Roughness : Ra = 0.4 μm / N5Connector : Variopin 8.0 double coaxTemperature sensor : 22k NTC

Electrical connection

ECS mode : When the sensor is setup for ECS mode this means the sensor will simulate an Electrical Chemical Sensor (ECS).

RS485 Interface : In order to configure the sensor a USB RS485 modbus convertor can be used together with the Visiconfigurator program.

A Cathode - only in ECS (Electro Chemical Sensor mode)B Anode in ECS mode, 4-20mA modeC Power Supply : +24 VDCD Power Supply : groundE Temperature sensor NTC 22K for ECS modeF Temperature sensor NTC 22K for ECS modeG RS485 (A)H RS485 (B)

FittingsThe Visiferm is equipped with a PG13.5 adapter. Together with our PG13.5 -> M25 adapter this sensor can be installed in all our 3 and 4-hole pH fittings :

FF20*1 : pH flowfitting max. sensor length 120mm

FD20*1 : immersion fittingFS20*1 : SubassemblyK1598AC : Small version flowfitting, With this

fitting the K1598JB adapter is needed (see drawing 1.2)

PG13.5 m25 adaptersK1520JN PVCK1500DV PVDFK1520JP SS

*1 Note : The liquid earth cable delivered with the pH fittings does not need to be connected. (see drawing 1.3)

Partnumbers

All Rights Reserved. Copyright © 2013, Yokogawa Corporation of America. Subject to change without notice. GS 12J6K6-E-A May 31, 2013

GS 12J6K6-E-A

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Dimensions

1.1 Visiferm external Dimensions

1.2 K1598 AB flowfitting

1.3 PG13.5 > M25 adapter

K1598 AC K1520 JNK1598 AB K1500 DV K1520 JP

No interference with: CO2, H2S, SO2Resistant against ethanol, methanol, H2O2, ethylene oxide, beta-gamma irradiationNot resistant against chlorine gas and other organic solvents such as chloroform, toluen

Dimensional drawing:

Ordering Information:Visiferm:Part Number Description a-length242450 VISIFERM DO 120 120 mm 242451 VISIFERM DO 160 160 mm 242452 VISIFERM DO 225 215 mm 242453 VISIFERM DO 325 325 mm 242454 VISIFERM DO 425 425 mm

Accessories:Part Number Description242427 VISIFERM DO Sensor Cap242410 VISICAL242411 USB-ModBus RS 485 Converter242412 4-20 mA Galvanic Isolator M1242413 VISIFERM Power Adapter 355194 VISIFERM Demo Cable (1m, open ends, Euro-plug power suppl238999-2766 VISIFERM Demo Cable (1m, Sartorius-BBI Lemo connector, Eu238999-2767 VISIFERM Demo Cable (1m, Applikon BNC connector, Euro Plug po238999-2768 VISIFERM Demo Cable (1m, New Brunswick AMP connector, Euro Plug po

54

3/4" NPT

1/4" NPT

1/4" NPT

30 (1.18")

100

(3.9

4") Ø30

PG 13.5

60

153

(6.0

”)

PG13.5 adapterK1523JB

PG13,5 adapterK1523JA

SC4Aoption

/FF

K1598AC

44

PG 13.5

M

25

x 1.

5

All Rights Reserved. Copyright © 2013, Yokogawa Corporation of America. Subject to change without notice. GS 12J6K6-E-A May 31, 2013

GS 12J6K6-E-A

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GS 12J6K6-E-ASubject to change without notice Printed in The USA, 01-1305 (A) ICopyright © 2013

Yokogawa has an extensive sales and distribution network. Please refer to the website (www.yokogawa.com/us) tocontact your nearest representative.

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YOKOGAWA EUROPE B.V.Euroweg 23825 HD AmersfoortThe NetherlandsTel. +31 (0)88-4641000Fax +31 (0)88-4641111 E-mail: info@nl.yokogawa.comwww.yokogawa.com/eu

YOKOGAWA CORPORATION OF AMERICA2 Dart RoadNewnan GA 30265United StatesTel. (1)-770-253-7000Fax (1)-770-251-2088E-mail: info@yca.comwww.yokogawa.com/us

YOKOGAWA ELECTRIC ASIA Pte. Ltd.5 Bedok South RoadSingapore 469270SingaporeTel. (65)-241-9933Fax (65)-241-2606E-mail: webinfo@yas.com.sgwww.yokogawa.com.sg

All Rights Reserved. Copyright © 2013, Yokogawa Corporation of America. Subject to change without notice. GS 12J6K6-E-A May 31, 2013

GS 12J6K6-E-A