Instruction Manual Model SC25F pH SENCOM™ sensor IM 12B6J1-41E-E 2nd edition
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IM 12B6J1-41E-E
Contents 1. 2. PREFACE 6 1.1 1.2 1.3 1.4 6 6 6 7 Introduction Unpacking and Checking Warranty and Service Serial Number definition GENERAL SPECIFICATIONS 8 2.1 Measuring elements 2.2 Wetted parts 2.3 Functional specifications (at 25°C) 2.4 Dynamic specifications 2.5 Operating range 2.6 Transmission signal (Data + and Data -) 2.7 Power supply (Supply+ versus Supply Gnd) 2.8 Regulatory standards 2.9 Shipping details 2.
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.
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.
2. GENERAL SPECIFICATIONS 2.1 Measuring elements : : : : 2.2 Wetted parts Sensor body : Measuring sensor : Reference junction : Earth pin : O-ring : pH glass electrode Silver Chloride reference Solid Titanium electrode Pt1000 temperature sensor Glass, PPS G-glass or L-glass Porous PTFE Solid Titanium FKM (Viton) 2.
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.
CSA Certificate no. Master contract no. : 2516979 : 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.
FM Certificate no. :3 046277 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.
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) : 1 20mm 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.
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.
Slide ring (Ryton) O-ring Examples of mounting the SC25F sensor using an adapter are given in Figures 6, 7, 8 and 9. PG13.5 Adapter PG13.5 to SC-fitting K1523JA (PPO) K1523JC (SS) FF40-S22 FS40-S22 Adapter PG13.5 to SC-fitting K1523JA (PPO) K1523JC (SS) Fitting Plastic FS40 Plastic FF40 3/4”NPT Adapter PG13.5 to 3/4” K1523JB (PPO K1523JD (SS) Slide ring (Ryton) O-ring Slide ring (Ryton) O-ring Adapter M25 x 1,5 - PG13.5 K1520JN (PVC) K1520JP (SS) K1500DV (PVDF) PG13.
<21 or 223 ±2.0 / 328 ±2.0 M9-Connector ch 19 G13.5 ø 12 Slide ring (Ryton) O-ring Slide ring (Ryton) O-ring Slide ring (Ryton) O-ring Adapter PG13.5 to 3/4”NPT K1523JB (PPO) K1523JD (SS) Seal, e.g. with Teflon tape ø 12 3/4”NPT <25 ø 10.7 -0.7 1/4”NPT PG13.5 FF40-S22 FS40-S22 Adapter PG13.5 to SC-fitting K1523JA (PPO) K1523JC (SS) Fitting Plastic FS40 Plastic FF40 Flow fitting SS K1598AC 60 Adapter PG13.5 to SC-fitting K1523JA (PPO) K1523JC (SS) 3/4”NPT Adapter PG13.
4 DIMENSIONS Dimensions in mm M25 x 1.5 <21 M9-Connector Fig 11: D imensions adapters K1500DV, K1520JN, K1520JP Wrench 19 PG13.5 Slide ring (Ryton) O-ring 120 / 225 ±2.0 h Slide ring (Ryton) O-ring Fig 12: D imensions adapters K1523JA, K1523JC PG 13,5 60 ø 10.7 -0.7 Ø13.5 <25 ø 12 10 PG13.5 /4”NPT PO) S) SS 44 PG 13,5 223 ±2.0 / 328 ±2.0 yton) 16 3/4"NPT Fig 10: Dimensions SC25F Sensor IM 12B6J3-04E-E Adapter PG13.
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.
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. void cleaning the complete sensor with solution. Some cleaning solutions will A 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.
7. MODEL CODE Model Code Suffix Code Option SC25F sensor type - AGP25 - ALP25 sensor length -120 -225 Description SENCOM™ pH Sensor: pH, REF, LE, Temp. General purpose model High temp. chemical resistant model 120mm 225mm 8. SPARE PARTS K1500BV K1500BZ K1500GR K1524AA O-rings O-ring set (6 pcs.), 11x3 mm, EPDM O-ring set (6 pcs.), 11x3 mm, Viton O-ring set (8 pcs.
9. EU DECLARATION OF CONFORMITY YOKOGAWA EU DECLARATION OF CONFORMITY Yokogawa Europe B.V.
Annex-1 Model Code Suffix Code Option SC25F sensor type - AGP25 - ALP25 sensor length -120 -225 Description SENCOM™ pH Sensor: pH, REF, LE, Temp. General purpose model High temp.
10. CHEMICAL COMPATIBILITY CHART Inorganic acid Inorganic acid Organic Organic acid acid Alkali Alkali Organic Oxidizing Organic Oxidizing Acid Neutral saltNeutral Basic salt Basic Acid salt solvent salt salt salt solvent agent agent O = can be used, X = shortens useful life, - = cannot be used O = can be used; X = shortens useful life; - = cannot be used; Blank = no data available 95 95O X fuming fuming - - Hydrochloric acid Hydrochloric acid 10 10O O O sat. sat.
IM 12B6J1-41E-E
YOKOGAWA ELECTRIC CORPORATION World Headquarters 9-32, Nakacho 2-chome, Musashino-shi Tokyo 180-8750 Japan www.yokogawa.com YOKOGAWA ELECTRIC ASIA Pte. LTD. 5 Bedok South Road Singapore 469270 Singapore www.yokogawa.com/sg YOKOGAWA CORPORATION OF AMERICA 2 Dart Road Newnan GA 30265 USA www.yokogawa.com/us YOKOGAWA CHINA CO. LTD. 3F Tower D Cartelo Crocodile Building No.568 West Tianshan Road Changing District Shanghai, China www.yokogawa.
