Yokogawa SC25F User Manual

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Instruction Manual

Model SC25F pH SENCOM™ sensor

IM 12B6J1-41E-E

2nd edition

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IM 12B6J1-41E-E

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IM 12B6J1-41E-E

1. PREFACE 6

1.1 Introduction 6

1.2 Unpacking and Checking 6

1.3 Warranty and Service 6

1.4 Serial Number definition 7

2. GENERAL SPECIFICATIONS 8

2.1 Measuring elements 8

2.2 Wetted parts 8

2.3 Functional specifications (at 25°C) 8

2.4 Dynamic specifications 8

2.5 Operating range 8

2.6 Transmission signal (Data + and Data -) 9

2.7 Power supply (Supply+ versus Supply Gnd) 9

2.8 Regulatory standards 9

2.9 Shipping details 12

2.10 Environment and operational conditions 12

3 INSTALLATION OF SC25F 13

3.1 Typical installation 13

3.2 Preparing the sensor for use 13

3.3 Mounting the sensor 13

4 DIMENSIONS 16

5. WIRING 17

6. GENERAL CALIBRATION & MAINTENANCE PROCEDURE 17

6.1 Calibration for pH measurement 17

6.2 Maintenance of the SC25F sensor 18

7. MODEL CODE 19

8. SPARE PARTS 19

9. EU DECLARATION OF CONFORMITY 20

10. CHEMICAL COMPATIBILITY CHART 22

IM 12B6J1-41E-E

1. PREFACE

1.1 Introduction

This instruction manual provides information for the installation and use of the SC25F SENCOM™ sensor. This digital sensor shows how Yokogawa applies the motto “Simply the Best” to sensor technology. Setup of the sensor is very easy because all sensor specific characteristics, such as calibration data, are stored in the sensor. The SC25F SENCOM™ sensor holds four separate measuring elements:

• pH glass electrode.

• Long life saturated Ag/AgCl reference system.

• Integral Pt1000 element for accurate temperature measurements.

• Solid Titanium LE electrode for accurate pH measurements.

Other valuable features of the sensor:

• PTFE reference diaphragm to prevent fouling.

• Polymerized electrolyte to extend the sensor lifetime.

• Available in different versions, a G-glass version for general purpose applications, and a L-glass version for harsh applications and high process temperatures. Both the G-glass as the L-glass version are available in two different lengths, 120 mm and 225 mm.

• Versatile in-line, immersion or off-line installation.

from high voltages and currents which are present on other cables.

1.2 Unpacking and Checking

Upon delivery, unpack the sensor carefully and inspect it to ensure that it is not damaged during shipment. If damage is found, retain the original packing material and immediately notify the carrier and the relevant local Yokogawa Sales Office. Make sure the Model Code and Serial Number on the sensor are the same as on the packing list. Also check if option(s) that were ordered, are included and correct.

1.3 Warranty and Service

Yokogawa products are guaranteed free from defects in workmanship and materials under normal use and service for a period of (typically) 12 months from the date of shipment from the manufacturer. Individual Sales organizations can deviate from the typical warranty period, and the conditions of sale relating to the original purchase order should be consulted. Damage caused by wear and tear, inadequate maintenance, corrosion, or by the effects of chemical processes is excluded from this warranty coverage. In the event of a warranty claim, the defective goods should be sent (freight paid) to the Service Department of the relevant Yokogawa Sales office for repair or replacement (at Yokogawa’s discretion).

Optional quick-removal adapters in both stainless steel and titanium are available to make calibration and maintenance even easier.

The SC25F is provided with a multipole M9 male connector for connection to the Yokogawa FLXA analyzer using the WU11 interconnection cable for SENCOM™ sensors. This cable, available in 4 fixed lengths, is specified for reliable transfer of digital signals and especially designed to be installed in a heavy industrial environment. The double shielded cable will protect both the sensor and the analyzer for interference

IM 12B6J1-41E-E

The following information must be included in the letter accompanying the returned goods:

• Model Code and Serial Number.

• Original Purchase Order and Date.

• Length of time in service and description of the process.

• Description of the fault and circumstances of the failure.

• Process/environmental conditions that may be related to the failure of the sensor.

• Statement as to whether warranty or nonwarranty service is requested.

• Complete shipping and billing instructions for return of material, plus the name and

phone number of a contact person that can be reached for further information.

• Clean Statement Returned goods that have been in contact with process fluids must be decontaminated and disinfected prior to shipment. Goods should carry a certificate to this effect, for the health and safety of our employees. Material Safety Data sheets must be included for all components of the process to which the sensor(options) have been exposed.

1.4 Serial Number definition

The Serial Number is defined by nine (9) alphanumeric characters: X1X2 Production Location X3X4 Year/Month code X5X6X7X8X9 Tracking number

Example: N1B600028

Table 1:

Production year according to DIN. IEC 60062

Year Year code Year Year code

2010 A 2023 R 2011 B 2024 S 2012 C 2025 T 2013 D 2026 U 2014 E 2027 V 2015 F 2028 W 2016 H 2029 X 2017 J 2030 A 2018 K 2031 B 2019 L 2032 C 2020 M 2033 D 2021 N 2034 E 2022 P 2035 F

Table 2:

Production month code according to DIN. IEC 60062

Month Month code

January 1 February 2 March 3 April 4 May 5 June 6 July 7 August 8 September 9 October O November N December D

IM 12B6J1-41E-E

2. GENERAL SPECIFICATIONS

2.1 Measuring elements : pH glass electrode

: Silver Chloride reference : Solid Titanium electrode : Pt1000 temperature sensor

2.2 Wetted parts

Sensor body : Glass, PPS Measuring sensor : G-glass or L-glass Reference junction : Porous PTFE Earth pin : Solid Titanium O-ring : FKM (Viton)

2.3 Functional specifications (at 25°C) Measuring system

Isothermal point : pH 7 Reference system : Ag/AgCl with saturated KCl Glass impedance - G-glass : 400 MΩ nominal

- L-glass : 775 MΩ nominal Liquid outlet : Non-flow junction Junction resistance : < 10 kΩ Temperature element : Pt1000 to IEC 751 Asymmetry potential(zero) : 8 ± 15 mV Slope : > 96 % (of theoretical value)

Note: The SC25F temperature sensor is designed for cell compensation and for indication.

It is NOT designed for process temperature control.

2.4 Dynamic specifications

Startup time sensor : < 60 sec. Response time pH : t90 < 15 sec. (for 7 to 4 pH step at 25 ºC) Response time temperature : t90 < 1.5 min. (for 10 °C step) Stabilization time pH : < 2 min. (for 0.02 pH unit during 10 sec.)

2.5 Operating range

pH* : 0 to 14 Temperature** - G-glass : -10 °C to 80 °C (14 °F to 176 °F)

- L-glass : +15 °C to 125 °C (59 °F to 257 °F)

Pressure (static) *** :

p(bar)

50 1000

Temp. (ºC)-10 25 130

Conductivity : > 10 µS/cm

Note* : The pH operating range is 0-14 pH, but using the sensor at temperature- and / or

pH-extremes will seriously shorten the lifetime.

Note** : The operating temperature for sensor in combination with PR10 retractable fitting

is limited to 80 ºC

Note*** : Process pressure fluctuations will shorten the lifetime of the sensor

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2.6 Transmission signal (Data + and Data -)

General : Bi-directional digital communication (RS 485) with limited

MODBUS support Data rate : 9600 b/s (8,E,1) Output function : pH or temperature compensated pH Temperature Junction resistance Sensor details (Model, Serial Number, production date) Sensor calibration data (zero, slope, temperature offset) Sensor status signals (e.g. Glass impedance detection) Note: The output functions and settings of the sensor are accessible using a dedicated

device such as the Yokogawa FLXA analyzer.

2.7 Power supply (Supply+ versus Supply Gnd)

Operating range : +2.7 to +3.6 VDC Power consumption : ≤ 20 mW

Pin # Signal description

1 Data 2 Data + 3 Supply + 4 Shield 5 Supply Gnd

2.8 Regulatory standards CE : Decision 768/2008/EC

- ATEX : Directive 94/9/EC, as amended by Regulation (EC) no. 1882/2003

- Certificate no. : DEKRA 11ATEX0064 X for II 1 G Ex ia IIC T3...T6 Ga

- Electrical data : For sensor input circuits (by connector) connected to a certified

: Ui = 6.1 V; Ii = 230 mA; Pi = 1.2 W; Li = 4 µH; Ci = 30 µF ::or Certified intrinsically safe Yokogawa transmitter Model FLXA21.

- Special conditions (X) : T6 for Tamb. -40 °C to +60 °C

- Pressure : Directive 97/23/EC, as amended by Regulation (EC) no. 1882/2003

- Applying article : 3.3 (Sound Engineering Practice)

- EMC : Directive 2004/108/EC

- Low Voltage : Directive 2006/95/EC

- WEEE : Directive 2012/19/EU

- RoHS : Directive 2011/65/EU

intrinsically safe circuit with the following maximum values

T5 for Tamb. -40 °C to +75 °C T4 for Tamb. -40 °C to +110 °C T3 for Tamb. -40 °C to +125 °C Electrostatic charges on the sensor enclosure shall be avoided.

Damaging the screw thread of the sensor might influence the maximum process pressure.

IEC 61326-1: 2005 Class A (control and laboratory use) IEC 61326-1: 2005 (use in industrial locations)

Sensor contains glass parts which if broken can cause cutting injuries.

Fig 1: Sensor connector (front view)

with gold plated contacts

IECEx Applying standards : IEC 60079-0: 2007; IEC 60079-11: 2006; IEC 60079-26: 2006 Certificate no. : IECEx DEK 11.0065X for Ex ia IIC T3...T6 Ga

IM 12B6J1-41E-E

chemical resistant

CSA

Certificate no. : 2516979 Master contract no. : 182892

IS, Class I Div. 1, GP A, B, C, D T3…T6

Electrical data : For sensor input circuits (by connector), connected to a

certified intrinsically safe circuit, with the following maximum values: Ui = 6.1 V; Ii = 230 mA; Pi = 1.2 W; Li = 4 µH; Ci = 30 µF or Certified intrinsically safe Yokogawa transmitter Model FLXA21 series.

Ambient temperature : T6 for Tamb. -40 °C to +60 °C

T5 for Tamb. -40 °C to +75 °C T4 for Tamb. -40 °C to +110 °C T3 for Tamb. -40 °C to +125 °C

Note: Intrinsically safe when connected as per Control Drawing FF1-K1224QV (see Fig 2)

Control Drawing CSA

The SC25F SENCOMTM sensor shall be installed to a certified intrinsically safe circuit meeting the entity parameters of the sensor as shown in the table as maximum values, or to a certified intrinsically safe Yokogawa transmitter Model FLXA21 series.

When installing this equipment, follow the manufacturer’s control drawing. Installation should be in accordance with Canadian Electrical Code, Part 1 or CEC, Part 1.

To prevent ignition of flammable or or combustible atmospheres, disconnect power before servicing or read, understand and adhere to the manufacturer’s live maintenance procedures.

Transmitter

IS, Class I Div.1, GP A, B, C, D T3/T4/T5/T6 Ta 125 ºC/110 ºC/75 ºC/60 ºC

SC25F - -

+ -

81 82 83 84 85 86 87

WU11 cable terminals 82-84, 86-87.

Maximum cable length: 100 m.

Cable diameter:

5.8mm

Maximum values

Ui Ii Pi Li Ci

120 120mm 225 225 mm AGP25 General purpose ALP25 High temp.

Sensor

6.1 V

230 mA

1.2 W 4 µH

30 µF

Hazardous

location

IM 12B6J1-41E-E

Fig 2: FF1-K1224QV Control drawing CSA

chemical resistant

Certificate no. : 3046277

IS, CL I Div. 1, GP A, B, C, D T3…T6

Electrical data : For sensor input circuits (by connector), connected to a

FM approved intrinsically safe apparatus meeting the entity parameters of the SENCOM™ sensor: Ui = 6.1 V; Ii = 230 mA; Pi = 1.2 W; Li = 4 µH; Ci = 30 µF or FM approved intrinsically safe Yokogawa transmitter Model FLXA21 series.

Ambient temperature: T6 for Tamb. -40 °C to +60 °C

T5 for Tamb. -40 °C to +75 °C T4 for Tamb. -40 °C to +85 °C T3 for Tamb. -40 °C to +85 °C

Note: Intrinsically safe when connected as per Control Drawing FF1-K1224QT (see Fig 3)

Control Drawing FM

The SC25F SENCOMTM sensor shall be installed to a FM approved intrinsically safe apparatus meeting the entity parameters

Transmitter

81 82 83 84 85 86 87

+ -

of the sensor as shown in the table as maximum values, or to a FM certified intrinsically safe Yokogawa transmitter Model FLXA21 series.

When installing this equipment, follow the manufacturer’s control drawing. Installation should be in accordance with ANSI/ISA RP 12.06.01 “Installation of Intrinsically Safe Systems for Hazardous (Classified)

WU11 cable terminals 82-84, 86-87.

Maximum cable length: 100 m.

Cable diameter:

5.8mm

Locations” and the National Electrical Code (ANSI/NFPA 70).

Classified

location

To prevent ignition of flammable or or combustible atmospheres, disconnect power before servicing or read, understand and adhere to the manufacturer’s live maintenance procedures.

IS, CL I Div.1, GP A, B, C, D T3/T4/T5/T6 Ta 85 ºC/85 ºC/75 ºC/60 ºC

SC25F - -

Input parameter

Ui Ii Pi Li Ci

120 120mm 225 225 mm AGP25 General purpose ALP25 High temp.

Sensor

6.1 V

230 mA

1.2 W 4 µH

30 µF

Fig 3: FF1-K1224QT Control drawing FM

IM 12B6J1-41E-E

Note: When the sensor has been connected to not intrinsically safe equipment which

exceeds the restrictions regarding the sensor input circuit (see electrical data), the sensor is not suitable anymore for intrinsically safe use.

2.9 Shipping details

Package size (L x W x H) : 120mm version: 300 x 100 x 75 mm (11.8 x 3.9 x 3.0 inch)

225 mm version: 435 x 60 x 60 mm (17.1 x 2.4 x 2.4 inch)

Package weight : app. 0.25 kg (0.55 lbs)

2.10 Environment and operational conditions

Storage temperature : -10 ºC to 50 °C (14 ºF to 122 °F) Sensor connection : Hot swapping possible Water proof : IP67 (conform IEC 60529)

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3 INSTALLATION OF SC25F

For optimum measurement results, the SC25F should be installed in a location that offers an acceptable representation of the process composition and DOES NOT exceed the specifications of the sensor. The SC25F is designed with PG13.5 threaded connection to allow installation in a wide variety of applications.

3.1 Typical installation

The SC25F sensor is designed for versatile in-line, immersion or off-line installation. For best results the SC25F should be mounted with the process flow coming towards the sensor, and positioned at least 15° above the horizontal plane to eliminate air bubbles in the pH glass bulb (see Figure 4).

3.3 Mounting the sensor

The simplest mounting is to use the PG13.5 threaded connection of the sensor. The sensor is standard with a slide ring (Ryton) and an O-ring (Silicon) for direct mounting in a fitting provided with PG13.5 thread (see Figure 5). Other O-ring materials are available as a spare part (see Section 8 of this Instruction Manual).

Note: When sensor is installed in a fitting

which is already provided with a spacer for the sensor, remove the pre-installed slide ring and O-ring and follow the installation instructions of the fitting.

GOOD

15º

GOOD

HORIZONTAL

INCORRECT

Fig 4: Mounting positions of sensor

3.2 Preparing the sensor for use

Remove the sensor from its shipping box and slide off the so-called ‘wet pocket’, the tube filled with solution to prevent drying out of the measuring elements during shipment or storage. During shipment, electrolyte in the sensor could be dislocated. To correct this, place the sensor upright for 24 hours. Before installing the sensor in the process it should be calibrated. A general calibration procedure is described in Section 6 of this Instruction Manual.

Slide ring (Ryton) O-ring

Sensor Holder PG13.5

Fig 5 : Simple mounting of sensor in

PR10 retractable fitting

IM 12B6J1-41E-E

Slide ring (Ryton) O-ring

Adapter PG13.5 to 3/4”NPT K1523JB (PPO) K1523JD (SS)

Adapter M25 x 1,5 - PG13.5 K1520JN (PVC) K1520JP (SS) K1500DV (PVDF)

3/4”NPT

Slide ring (Ryton) O-ring

When mounting in FD20 FF20 FS20 use O-ring 11 x 3

Slide ring (Ryton) O-ring

Sensor Holder PG13.5

PG13.5

M25 x 1.5

Adapter PG13.5 M25 x 1,5 K1500DV (PVDF) K1520JM (PVC) K1520JP (SS)

PG13.5

ø 13.5

Adapter PG13.5 to SC-fitting K1523JA (PPO) K1523JC (SS)

Sensor Holder PG13.5 K1525AB

Note: Mounting the sensor in fittings where

the sealing is situated nearby the sensortip, uncorrect placement of the sensor will damage the measuring glass elements. Please handle with care.

Note: First install the sensor in the adapter

before it is mounted in the fitting.

The SC25F sensor can also be mounted in other fittings using a quick-removal adapter. These adapters are available as a spare part and ordering information of these parts is given in Section 8 of this Instruction Manual. For a detailed description of these adapters see Section 4.

Examples of mounting the SC25F sensor using an adapter are given in Figures 6, 7, 8 and 9.

Slide ring (Ryton) O-ring

Adapter M25 x 1,5 - PG13.5 K1520JN (PVC) K1520JP (SS) K1500DV (PVDF)

When mounting in FD20 FF20 FS20 use O-ring 11 x 3

Adapter PG13.5 to SC-fitting K1523JA (PPO) K1523JC (SS)

O-ring 29.74 x 3.53

Slide ring (Ryton) O-ring

Fitting Plastic FS40 Plastic FF40

Fig 6: Mounting of sensor in FD20/

FF20/FS20 fitting using M25x1.5 adapter K1500DV/ K1520JN / K1520JP

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Fig 7: Mounting of sensor in plastic

FS40 / FF40 fitting, using adapter K1523JA / K1523JC

Adapter PG13.5 to 3/4”NPT K1523JB (PPO) K1523JD (SS)

Adapter M25 x 1,5 - PG13.5 K1520JN (PVC) K1520JP (SS) K1500DV (PVDF)

Adapter PG13.5 to SC-fitting K1523JA (PPO) K1523JC (SS)

O-ring 29.74 x 3.53

Fitting Plastic FS40 Plastic FF40

3/4”NPT

Slide ring (Ryton) O-ring

When mounting in FD20 FF20 FS20 use O-ring 11 x 3

PG13.5

M25 x 1.5

Adapter PG13.5 M25 x 1,5 K1500DV (PVDF) K1520JM (PVC) K1520JP (SS)

PG13.5

ø 13.5

Adapter PG13.5 to SC-fitting K1523JA (PPO) K1523JC (SS)

Sensor Holder PG13.5 K1525AB

Adapter PG13.5 to SC-fitting K1523JA (PPO) K1523JC (SS)

M9-Connector

Wrench 19

PG13.5

Slide ring (Ryton)

O-ring

ø 12

ø 10.7 -0.7

<25

120 / 225 ±2.0

223 ±2.0 / 328 ±2.0

Adapter PG13.5 to SC-fitting K1523JA (PPO) K1523JC (SS)

FF40-S22 FS40-S22

Slide ring (Ryton) O-ring

<21

Adapter PG13.5 to SC-fitting K1523JA (PPO) K1523JC (SS)

Slide ring (Ryton) O-ring

FF40-S22 FS40-S22

Slide ring (Ryton) O-ring

Adapter PG13.5 to 3/4”NPT K1523JB (PPO) K1523JD (SS)

Seal, e.g. with Teflon tape

3/4”NPT

1/4”NPT

Flow fitting SS K1598AC

1/4”NPT

Fig 8: Mounting of sensor in metal FF40

fitting, using adapter K1523JA / K1523JC

Fig 9: Mounting of sensor in fitting

K1598AC, using adapter K1523JB / K1523JD

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Slide ring (Ryton) O-ring

4 DIMENSIONS

Dimensions in mm

PG 13,5

M9-Connector

Wrench 19

PG13.5

Slide ring (Ryton)

O-ring

ø 12

<21

Fig 11: Dimensions adapters

223 ±2.0 / 328 ±2.0

Fig 12: Dimensions adapters

120 / 225 ±2.0

M25 x 1.5

K1500DV, K1520JN, K1520JP

PG13.5

Ø13.5

K1523JA, K1523JC

PG 13,5

ø 10.7 -0.7

<25

Fig 10: Dimensions SC25F Sensor

IM 12B6J3-04E-E

3/4"NPT

Fig 13: Dimensions adapters

K1523JB, K1523JD

5. WIRING

The SC25F is provided with a multipole M9 male connector for connection to the Yokogawa FLXA analyzer using the WU11 interconnection cable for SENCOM™ sensors. The connections of this M9 male connector (see Section 2.7 for details), the WU11 interconnection cable and the FLXA terminal strip are given in Table 3.

Table 3: Definition M9 sensor connector pin to WU11 cable and FLXA analyzer

M9 Pin # WU11 wire # WU11 wire color FLXA terminal # Signal description

1 83 Yellow 83 Data 2 84 Green 84 Data + 3 87 Brown 87 Supply + 4 82 Black 82 Shield 5 86 White 86 Supply Gnd

6. GENERAL CALIBRATION & MAINTENANCE PROCEDURE

Calibration of the SC25F pH SENCOM™ sensor can be done on site with the FLXA analyzer connected, or in the laboratory with another FLXA analyzer or with the dedicated Yokogawa SENCOM™ PC software, model SPS24. When using another FLXA analyzer, it has to be set correctly for each calibration. Refer to the FLXA analyzer Instruction Manual for details. After calibration all data will be stored in the sensor itself. If the sensor is reconnected to the FLXA analyzer in the field, the calibration data of the sensor is automatically read by the analyzer.

6.1 Calibration for pH measurement

To calibrate the SC25F pH SENCOM™ sensor, two buffer solutions with known pH values are required. It is recommended that one buffer solution has a value near to pH 7.00. Depending on the process value to be measured, the second buffer solution should be either acidic (below pH 7.00) or alkaline (above pH 7.00). Normally the IEC buffers (pH 4.01,

6.87 and 9.18) are used.

The following is a very general 2-point calibration procedure:

1. Clean the sensor using a 5% solution of HCl;

2. Rinse sensor thoroughly with demineralized water;

3. Immerse the sensor in the first buffer (pH 6.87 is recommended) and execute calibration as described in the instruction manual of the analyzer or SPS24 PC software;

4. Rinse sensor thoroughly with demineralized water;

5. Immerse the sensor in the second buffer (pH 4.01 or 9.18 is recommended) and execute calibration as described in the instruction manual of the analyzer or SPS24 PC software;

6. Rinse sensor thoroughly with demineralized water.

During calibration, the temperature compensation should be active. The FLXA analyzer automatically compensates for the sensitivity change of the pH sensor at different temperatures.

After calibration, replace or re-install the sensor into the process.

IM 12B6J1-41E-E

6.2 Maintenance of the SC25F sensor

A pH sensor requires routine maintenance to keep the measuring elements clean and functioning. Depending on the process, different cleaning solutions may be required.

Avoid cleaning the complete sensor with solution. Some cleaning solutions will damage the modelcode sticker and connector which are placed on the electronic housing on top of the sensor. Only clean the measuring elements at the bottom side of the sensor.

In most cases cleaning with water, iso-propanol or methanol is sufficient. In other cases the measuring elements of the sensor have to be cleaned with specific solutions.

Examples:

1. Deposits of limes, hydroxides or carbonates can be removed by immersing the bottom part of the sensor in a solution containing dilute hydrochloric acid (5% is recommended). Afterwards rinse the sensor with water.

2. Deposits of oil and fat can be removed with hot water with a detergent. When the results are unsatisfactory, a mild (carbonate based) abrasive can be used.

3. Protein deposits should be removed with a protein enzymatic solution, for instance a solution containing 8.5 mL concentrated hydrochloric acid and 10 grams of pepsin in 1 liter of water.

Note: Avoid cleaning with non-polar solvent like tri-chloro ethylene, toluene or hexane. The

non-polar solvents will break up the gel-layer on the pH glass bulb and requires that the sensor has to be soaked in water for at least 12 hours before it will function again.

The Teflon diaphragm of the sensor can be regenerated by putting it in hot (± 70°C, 158°F) 3 molar Potassium Chloride (KCl) solution and letting it cool down to room temperature. This procedure clears the diaphragm and will soak the diaphragm with conductive KCl again.

IM 12B6J1-41E-E

7. MODEL CODE

Model Code Suffix Code Option Description SC25F SENCOM™ pH Sensor: pH, REF, LE, Temp.

sensor type - AGP25 General purpose model

- ALP25 High temp. chemical resistant model sensor length -120 120mm

-225 225mm

8. SPARE PARTS

O-rings

K1500BV O-ring set (6 pcs.), 11x3 mm, EPDM K1500BZ O-ring set (6 pcs.), 11x3 mm, Viton K1500GR O-ring set (8 pcs.), 11x3 mm, Silicon K1524AA O-ring 11x3 mm (Silicon) and Slide ring (Ryton)

Connection equipment

BA10 Junction box for SENCOM™ Sensor WU11-M9-xx-WP-V Interconnection Cable for SENCOM™ Sensor,

available lengths xx (03, 05, 10, 20 meter)

Buffer solutions

K1520BA Buffer solutions pH 4.01, pH 6.87, pH 9.18 (500 ml each) K1520BB Buffer solution pH 1.68 (500 ml) K1520BC Buffer solution pH 4.01 (500 ml)) K1520BD Buffer solution pH 6.87 (500 ml) K1520BE Buffer solution pH 9.18 (500 ml)

Adapters

K1500DV Adapter, PG13.5 to M25x1.5, PVDF K1520JN Adapter, PG13.5 to M25x1.5, PVC K1520JP Adapter, PG13.5 to M25x1.5, Stainless Steel K1523JA Adapter, PG13.5 to FF40/FS40 fitting, PPO (Noryl) K1523JB Adapter, PG13.5 to ¾”NPT, PPO (Noryl) K1523JC Adapter, PG13.5 to FF40/FS40 fitting, Stainless Steel K1523JD Adapter, PG13.5 to ¾”NPT, Stainless Steel

Fittings

K1598AC1) Flow fitting (incl. 3.1 certificate), Stainless Steel

Note1): Adapter K1523JB or K1523JD needed to fit the sensor.

IM 12B6J1-41E-E

YOKOGAWA

Amersfoort, 01 January 2014

H. Leijten

General Manager

Yokogawa Process Analyzers (YPA)

Yokogawa Europe B.V.

9. EU DECLARATION OF CONFORMITY

We: Yokogawa Europe B.V. Euroweg 2

3825 HD Amersfoort The Netherlands

herewith declare under our sole responsibility that the product, model: SC25F

further specified with model suffix- and option codes: As listed in Annex-1 in this document

is manufactured in accordance with the requirements for CE-marking of products as stated in EC Decision:

768/2008/EC on a common framework for the marketing of products

by applying the following standards:

EN-ISO 9001: 2008 Quality management systems - Requirements

Subject product is:

 In compliance with the essential requirements of the specific product legislation:

- EMC Directive 2004/108/EC

by applying the following standards: IEC 61326-1: 2006 Class A Electrical equipment for measurement, control and laboratory use – EMC requirements – Part 1: General requirements. IEC 61326-2-3: 2006 Electrical equipment for measurement, control and laboratory use – EMC requirements – Part 2-3: Particular requirements – Test configurations, operational conditions and perfor mance criteria for transducers with integrated or remote signa l conditioning.

- LVD Directive 2006/95/EC by applying the following standards:

IEC 61010-1: 2010 Safety requirements for electrical equipment for measurement, control and laboratory use – Part 1: Ge neral requirements.

- Pressure Equipment Directive 97/23/EC (PED)

As amended by Regulation (EC) no. 1882/2003, by applying: Article 3.3: Sound Engineering Practice

- RoHS Directive 2011/65/EU by applying: Category 9: Industrial monitoring and control instruments, ion selective electrode

- Explosive atmospheres Directive 94/9/EC (ATEX)

As amended by Regulation (EC) no. 1882/2003, by applying the following standards: EN 60079-0: 2009 Explosive atmospheres – Part 0: Equipment – General requirements EN 60079-11: 2007 Explosive atmospheres – Part 11: Equipment protection by intrinsic safety “i” EN 60079-26: 2007 Explosive atmospheres – Part 26: Equipment with equipment protection level (EPL) Ga

The provisions fulfilled are:  II 1 G Ex ia IIC T3...T6 Ga

Number of the EC-type Examination Certificate: DE KRA 11 ATEX 0064 X Name of the notified body: DEKRA Certification B.V. Identification number of the notified body: 0344 Address of the notified body:

 Produced according to appropriate quality control procedures.

The CE-mark has been affixed on the product in 2013 for the first time.

EU DECLARATION OF CONFORMITY

Meander 1051, 6825 MJ Arnhem, The Netherlands

IM 12B6J1-41E-E

1/2

Annex-1

Model Code Suffix Code Option Description SC25F SENCOM™ pH Sensor: pH, REF, LE, Temp.

sensor type - AGP25 General purpose model

- ALP25 High temp. chemical resistant model sensor length -120 120mm

-225 225mm

IM 12B6J1-41E-E

OOX---OOO------

10. CHEMICAL COMPATIBILITY CHART

Material PVDF S.S. 316 VITON PEEK PP PVC PFA (Kynar)

Sulfiric acid

Sulfiric acid 10 OOO XXX OOO OOO OO OX OOO 50 OOO XXX OOO OOX OO OO OOO 95 OX - XXX OOO - - - X - XX OOO fuming - - - - - - OOO - - - - - - - OOO

Hydrochloric acid

Hydrochloric acid 10 O O O - - - O O O O O X O O OX O O O sat. OOO - - - OOX OO OO OOO

Nitric acid

Nitric acid 25 OOX XXX OOX OOO OO OX OOO 50 OOX XXX - - - XXX X - OX OOO 95 OX - OOO - - - - - - - - - - OOO

Inorganic acidOrganic acid

Inorganic acid

fuming - - - OOO - - - - - - - - - - OOO

Phosphoric acid

Phosphoric acid 25 OOO - - - OOO OOO OO OX OOO 50 OOO XXX OOO OOO OO OO OOO 95 OOO OOO XX - OOO OO OO OOO

Hydrofluoric acid

Hydrofluoric acid 40 O O O - - - O O O - - - O O OX O O O 75 OOO - - - OOO - - - OO XX OOO Acetic acid 10 OOO OOX - - - OOO OO OX OOO

Acetic acid - - - OOOOOOOOOOOO

glacial OX - OOX - - - OOX OX XX OOO Formic acid 80 OOO XXX - - - XXX OO O- OOX

Formic acid - - - X X - OOOOO OOO

Citric acid 50 OOO OOO OOO OOO OO OO OOO

Citric acid O O O X X X OOOOOOOOO

Organic acidAlkaliAcid saltBasic salt

Calcium hydroxide sat. O O O O O O O O O O O O O O O O O O O

Calcium hydroxide OOOOOOOOOOOOOOO

Potassium hydroxide 50 O O X O O O O O O O O O O O O O O O O

Potassium hydroxide OOOOX - OOOOOOOOX

Alkali

Sodium hydroxide 40 OOX OOO XXX OOO OO OX OOO

Sodium hydroxide XXXXX - OOOOOOOOX

Ammonia in water 30 OOO OOO XXX OOO OO OX OOO

Ammonia in water XXXXX - OOOOOOOOX

Ammonium chloride sat. O O O X X X O O O O O O O O O O O O O

Ammonium chloride OOOOOOOOOOOOOOO

Zinc chloride 50 OOO XXX OOO OOO OO OO OOO

salt

Acid

Zinc chloride OOOOOOOOOOOOOOO

Iron (III) chloride 50 O O O - - - O O O O O O O O O O O O O

Iron(III) chloride O O O OOOO OOO

Sodium sulfite sat. OOO OOO - - - OOO OO OO OOO

Sodium sulfite - - - OOOOOOOOOOOO

salt

Basic

Sodium carbonate sat. O O O O O O O O O O O O O O O O O O O

Sodium carbonate OOOOOOOOOOOOOOO

Potassium chloride sat. O O O X X X O O O O O O O O O O O O O

Potassium chloride OOOOOXOOOOOOOOO

Sodium sulfate sat. OOO OOO OOO OOO OO OO OOO

Sodium sulfate OOOOOOOOOOOOOOO

Calcium chloride sat. O O O X X X O O O O O O O O O O O O O

Calcium chloride OOOOOOOOOOOOOOO

salt

Sodium chloride sat. O O O X X X O O O O O O O O O O O O O

Neutral

Sodium chloride OOOOOOOOOOOOOOO

Sodium nitrate 50 OOO XXX OOO OOO OO OO OOO

Sodium nitrate OOOOOOOOOOOOOOO

Aluminium chloride sat. O O O - - - O O O O O O O O O O O O O

Aluminium chloride OOOOOXOOOOOOOOO

Hydrogen peroxide 30 O O O O O O O O O O O O O O O O O O O

Neutral salt

Hydrogen peroxide OOOOOOOOOX - - OOO

Sodium hypochloride 50 O O O X X X O O X O O O X X X X O O O

Sodium Hypochloride O O X X - - O O O X O O O

agent

Potassium dichromate sat. O O O O O O O O O O O O O O O O O O O

Oxidizing

Potassium dichromate OOOOOOOOOX OOO

Chlorinated lime O X - X X X X X X - - O O O O O

Chlorinated lime O O O O O O

agent

Ethanol 80 OOX OOO X - - OOO OO OX OOO

Oxidizing

Ethanol X - - OOOOOOOOOOOO

Cyclohexane OOX OOO OOO OOO - - OO OOO

Cyclohexane OOOOOOOOOOOOOOO

Toluene OOO OOO - - - OOO X - - - OOO

Toluene - - - OOOOOOOOOOOO

solvent

Organic

Trichloroethane XXX OOX XXX OOO - - - - OOO

Trichloroethane X X X OOOOOOOO OOO

solvent

Water OOO OOO OOO OOO OO OO OOO

Organic

O = can be used, X = shortens useful life, - = cannot be used

Water OOOOOOOOXOOOOOO

O = can be used; X = shortens useful life; - = cannot be used; Blank = no data available

Note: Information in this list is based on our general experience and literature data and

Note: Information in this list is based on our general experience and literature data and given in good faith.

given in good faith. However Yokogawa is unable to accept responsobility for claims

However Yokogawa is unable to accept responsibility for claims related to this information.

related to this information.

T e m p .

Conc.%

Conc.

Temp. °C

ºC

fuming

sat.

fuming

glacial

sat.

2060100

Viton

20601002060

2060100

OOO - - - OOOOOOOOO

OOO - - - OOOXXXOOO

OOO - - - OOOXX - OOO

OOO - - - OOO OOO

OOO - - - OOOOOOOOO

OOXOOOOOOOOOOOO

- - - OOOOOOX X XOOO

- - - OOOOOO - - - OOO

- - - OOO OOO

OOOX X - OOOOOOOOO

OOOX - - OOOOOOOOO

XX - X - - OOOOOOOOO

OOO- - - OOOXXXXXX

- - - OOOOOOO OOO

Material

PTFE (teflon)

1002060

2060100

PPS

(Ryton) Glass

1002060

20602060100

1002060

IM 12B6J1-41E-E

100

IM 12B6J1-41E-E

YOKOGAWA ELECTRIC CORPORATION World Headquarters

9-32, Nakacho 2-chome, Musashino-shi Tokyo 180-8750 Japan www.yokogawa.com

YOKOGAWA CORPORATION OF AMERICA

2 Dart Road Newnan GA 30265 USA www.yokogawa.com/us

YOKOGAWA EUROPE BV

Euroweg 2 3825 HD AMERSFOORT The Netherlands www.yokogawa.com/eu

YOKOGAWA ELECTRIC ASIA Pte. LTD.

5 Bedok South Road Singapore 469270 Singapore www.yokogawa.com/sg

YOKOGAWA CHINA CO. LTD.

3F Tower D Cartelo Crocodile Building No.568 West Tianshan Road Changing District Shanghai, China www.yokogawa.com/cn

YOKOGAWA MIDDLE EAST B.S.C.(c)

P.O. Box 10070, Manama Building 577, Road 2516, Busaiteen 225 Muharraq, Bahrain www.yokogawa.com/bh

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

Yokogawa SC25F User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Contents

1. PREFACE

2. GENERAL SPECIFICATIONS

3 INSTALLATION OF SC25F

4 DIMENSIONS

5. WIRING

6. GENERAL CALIBRATION & MAINTENANCE PROCEDURE

7. MODEL CODE

8. SPARE PARTS

9. EU DECLARATION OF CONFORMITY

10. CHEMICAL COMPATIBILITY CHART