Instruction Manual YOKOGAWA Model SC4A 19mm Conductivity Sensors IM 12D7J4-E-E 7th edition
TABLE OF CONTENTS 1. GENERAL ...................................................................................................................... 1 1-1. Type number ......................................................................................................... 1 1-2. General specifications SC4A-AD .......................................................................... 1 1-3. General specifications SC4A-SA/SB/SC ............................................................... 2 1-4.
1 1. GENERAL 1-1. Type number The type number of the conductivity cell, shown on the cable, gives coded information on the cell constant, the materials of construction etc. Option code Description 19 mm conductivity sensor Titanium Stainless steel For adapter mounting 9 cm 15 cm 0.02/cm 0.
2 1-3 General specifications SC4A-SA/SB/SC Materials Wetted Parts Body & electrodes : Stainless steel AISI 316 (1.4435), Ro < 0.5 O-rings : EPDM, FDA migration tested Mounting adapter : Stainless steel AISI 316 Triclamp acc.
3 1-4 General specifications SC4A-PR Materials Wetted Parts Body & electrodes : Stainless steel AISI 316 or Titanium grade 2 or 3 O-rings : Viton Mounting adapter : Retractable fitting Insulation : PEEK (Poly Ether Ether Ketone) Operating Specifications (Sensor) Measuring system : 2-electrode (4-wire) Maximum pressure : 10 Bar (142 PSIG) Maximum temperature : 110 °C (230 °F) Temperature response : < 1 minute for 90% of a step change Sterilize : At 135°C (275 °F) Shipping details Package size : wxhxd 220 x
4 12D7J4-19 OPTIONS 3/4 NPT ca 49 (1.95") ca 49 (1.95") OPTIONS 3/4 NPT /PS /PF Figure 1-1. Adapters for SC4A-AD... Figure 1-2. Mounted sensor with the option /PS and /PF units in mm (inch) 3/4” NPT 55 (2.16") 100 (3.94”) Ø30 51 (2.00") 1/4” NPT 1/4” NPT 30 (1.18”) Figure 1-3. Flow fitting option /FF K1598 AC (incl. 3.1 certificate) IM 12D7J4-E-E Figure 1-4. Welding socket for SC4A-SA...
5 Tri-clamps for SC4A -SB... 12,7 (0.5") Ø25,4(1.0") /SB1 12,7 (0.5") Ø38,1(1.5") /SB2 Tri-clamp for SC4A-SC... 12,7 (0.5") Ø50,8(2.0") /SC1 Figure 1-5. Tri-clamp dimensions Figure 1-6.
6 2. INSTALLATION 2-1. Connection The cable is six wire multicore and covered with a thermoplastic TPE. The wires are also covered with thermoplastic TPE individually and coloured. The cable connections are supplied with 2 mm terminations for connection to the transmitter, or connection box: these pins quarantee a correct and simple connection to the terminals. 11 Temperature 12 Temperature 13 Outer electrode 14 Outer electrode 15 Inner electrode 16 inner electrode Figure 2-0.
7 3. OPERATION AND MAINTENANCE 3-1. Checking the cell If a fault occurs, first check the cell for visible damage. If damage is not apparent, check the cell resistances measuring between the cable connections. a. 11 and 12 (or connector pins 1 and 2) b. 11 and 13 (or connector pins 1 and 3) c. 12 and 13 (or connector pins 2 and 3) d. 12 and 15 (or connector pins 4 and 5) e. 15 and 16 (or connector pins 5 and 6) f. 13 and 14 (or connector pins 3 and 4) g.
8 3-4. SPARE PARTS AND ACESSOIRES 3-4-1- Spare parts and acessories for SC4A-S- AD and SC4A-T-AD K1542DF K1500DY K1542CW K1598AC Compression fitting in Stainless Steel ( /PS) Ferrule set for K1542DF Compression fitting in PVDF (/PF) Flowfitting with 3.1 material certificate 3.4.2. Spare parts and acessories for SC4A-E-SA K1542FA K1500BJ Straight welding socket and mounting nut Stainless Steel O-rings in EPDM (5), FDA migration tested 3.4.3.
9 IM 12D7J4-E-E
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