User’s
Manual
Thank you for selecting our Model SC202G [Style: S3] and/or SC202S [Style: S3] 2-Wire Conductivity or
Resistivity Transmitter.
User's Manual, IM 12D08B02-01E, 8th Edition, supplied with the product, some revisions/additions have been
made. Please replace the corresponding pages in your copy with the attached, revised pages.
Revisions:
- PREFACE, "How to dispose the batteries" added.
- Page 2-2, Description of Profibus added to EMC conformity standard.
- Last page, Added of KC mark.
Model SC202G [Style: S3], SC202S [Style: S3]
2-wire Conductivity or
Resistivity Transmitter
Supplement
All Rights Reserved, Copyright © 2007, 3rd Edition: Sep 2011 (YK)
Subject to change without notice.
IM 12D08B02-01E
8th Edition
PREFACE
CAUTIONCAUTION
WARNINGWARNING
DANGER
Electric discharge
The EXA analyzer contains devices that can be
damaged by electrostatic discharge. When servicing
this equipment, please observe proper procedures
to prevent such damage. Replacement components
should be shipped in conductive packaging. Repair
work should be done at grounded workstations using
grounded soldering irons and wrist straps to avoid
electrostatic discharge.
Installation and wiring
The EXA analyzer should only be used with equipment that meets the relevant international and
regional standards. Yokogawa accepts no responsibility for the misuse of this unit.
The instrument is packed carefully with shock
absorbing materials, nevertheless, the instrument
may be damaged or broken if subjected to strong
shock, such as if the instrument is dropped. Handle
with care.
Although the instrument has a weatherproof
construction, the transmitter can be harmed if it
becomes submerged in water or becomes excessively wet.
Do not use an abrasive material or solvent when
cleaning the instrument.
Do not modify the SC202 transmitter.
Electrostatic charge may cause an explosion hazard. Avoid any actions that cause the generation of
electrostatic charge, e.g., rubbing with a dry cloth.
Warning label
Because the enclosure of the Dissolved Oxygen
transmitter Type SC202S-A, -P, -F are made of aluminium, if it is mounted in an area where the use of
category 1 G Zone 0 apparatus is required, it must
be installed such, that, even in the event of rare
incidents, ignition sources due to impact and friction
sparks are excluded.
Notice
• This manual should be passed on to the end
user.
• The contents of this manual are subject to
change without prior notice.
• The contents of this manual shall not be
reproduced or copied, in part or in whole,
without permission.
• This manual explains the functions contained in
this product, but does not warrant that they are
suitable the particular purpose of the user.
• Every effort has been made to ensure accuracy
in the preparation of this manual.
However, when you realize mistaken
expressions or omissions, please contact the
nearest Yokogawa Electric representative or
sales office.
• This manual does not cover the special
specifications. This manual may be left
unchanged on any change of specification,
construction
or parts when the change does not affect the
functions or performance of the product.
• If the product is not used in a manner specified
in this manual, the safety of this product may be
impaired.
Yokogawa is not responsible for damage to the
instrument, poor performance of the instrument
or losses resulting from such, if the problems
are caused by:
• Improper operation by the user.
• Use of the instrument in improper applications
• Use of the instrument in an improper
environment or improper utility program
• Repair or modification of the related instrument
by an engineer not authorized by Yokogawa.
Safety and Modification Precautions
• Follow the safety precautions in this manual
when using the product to ensure protection
and safety of the human body, the product and
the system containing the product.
How to dispose the batteries:
This is an explanation about the new EU Battery
Directive (DIRECTIVE 2006/66/EC). This directive
is only valid in the EU. Batteries are included in
this product. Batteries incorporated into this product cannot be removed by yourself. Dispose them
together with this product. When you dispose this
product in the EU, contact your local Yokogawa
Europe B.V.office. Do not dispose them as
domestic household waste.
Battery type: silver oxide battery
Notice:
The symbol (see above) means they shall be
sorted out and collected as ordained in ANNEX
II in DIRECTIVE 2006/66/EC.
IM 12D08B02-01E
2-2 Specifications
CAUTION
Item
Description
Code
Factory
Mutual (FM)
CENELEC ATEX (KEMA) Type of protection "n"
Applicable standard: EN60079-0:2006,
EN60079-15:2003
Certificate: KEMA 06ATEX0221
EEx nA [nL] IIC, Group: II, Category: 3G
Temp. Class: T4, Amb. Temp.: -10 to 55°C
T6, Amb. Temp.: -10 to 40°C
Ui=31.5 V, Ci=22 nF, Li=35 μH
FM Non-incendive safe Approval
Applicable standard: FM3600, FM3611, FM3810
Non-incendive Safe for Class I, Division 2,
Groups ABCD, Zone 2
Temp. Class: T4, Amb. Temp.: -10 to 55°C
Non-incendive Safe Apparatus Parameters
Vmax=31.5 V, Ci=22 nF, Li=35 μH
-N
CENELEC ATEX (KEMA) Intrinsically safe Approval
Applicable standard: EN60079-0, EN50020
EN60079-26
Certificate: KEMA 06ATEX0220 X
Ex ia IIC, Group: II, Category: 1G
Temp. Class: T4, Amb. Temp.: -10 to 55°C
T6, Amb. Temp.: -10 to 40°C
Ui=31.5 V, Ii=100 mA, Pi=1.2 W, Ci=22 nF, Li=35 μH
FM Intrinsically safe Approval
Applicable standard: FM3600, FM3610, FM3810
Intrinsically Safe for Class I, Division 1, Groups ABCD
Class I, Zone 0, AEx ia IIC
Temp. Class: T4, Amb. Temp.: -10 to 55°C
Intrinsically Safe Apparatus Parameters
Vmax=31.5 V, Imax=100 mA,
Pmax=1.2 W, Ci=22 nF, Li=35 μH
-A
-N
-A
CENELEC
ATEX
2.EPS
Item
Description
Code
Factory
Mutual (FM)
FM Non-incendive safe Approval
Applicable standard: FM3600, FM3611, FM3810
Non-incendive Safe for Class I, Division 2,
Groups ABCD, Zone 2
Temp. Class: T4, Amb. Temp.: -10 to 55°C
Non-incendive Safe Apparatus Parameters
FM Intrinsically safe Approval
Applicable standard: FM3600, FM3610, FM3810
Intrinsically Safe for Class I, Division 1, Groups ABCD
Class I, Zone 0, AEx ia IIC
Temp. Class: T4, Amb. Temp.: -10 to 55°C
Intrinsically Safe Apparatus Parameters
FM.EPS
Vmax=32 V, Pmax=1.2 W,
Ci=220 pF, Li=0 μH
Vmax=32 V, Pmax=5.32 W,
Ci=220 pF, Li=0 μH
Entity
FNICO
-F
-P
or
-D
-B
or
Vmax=24 V, Imax=250 mA,
Pmax=1.2 W, Ci=220 pF, Li=0 μH
Vmax=17.5 V, Imax=380 mA,
Pmax=5.32 W, Ci=220pF, Li=0 μH
Entity
FISCO
2-2. Operating specifications
A. Performance (under reference conditions with
sensor simulation)
Conductivity (2 µS x K cm-1 to 200 mS x K cm-1)
- Accuracy : ±0.5% F.S.
Conductivity (1 µS x K cm-1 to 2 µS x K cm-1)
- Accuracy : ±1% F.S.
Resistivity (0.005kΩ/ K cm-1 to 0.5MΩ/ K cm-1)
- Accuracy : ±0.5% F.S.
Resistivity (0.5MΩ/ K cm-1 to 1MΩ/ K cm-1)
- Accuracy : ±1% F.S.
Temperature (Pt1000Ω, PB36 NTC, Ni100)
- Accuracy : ±0.3°C
Temperature (Pt100Ω, 8.55kΩ NTC)
mA
- Accuracy : ±0.4°C
Temperature compensation
- NaCl table : ±1 %
- Matrix : ±3 %
Note on performance specifications:
"F.S." means maximum setting value of
transmitter output. "K" means cell constant.
YOKOGAWA provides conductivity sensors
which cell constant are 0.1 to 10 cm-1.
The following tolerance is added to above
performance.
mA output tolerance : ± 0.02 mA of
"4 - 20 mA"
H. Operation protection
: 3-digit programmable password.
I. EMC Conformity standards ,
EN 61326-1 Class A, Table 2
(For use in industrial locations)
EN 61326-2-3
EN 61326-2-5 (Profibus communication may be
influenced by strong electromagnetic field.)
This instrument is a Class A product, and it is
designed for use in the industrial environment.
Please use this instrument in the industrial
environment only.
J. Explosionproof type
Refer to control drawings.
Step response: 90 % (< 2 decades) in 7
seconds
B. Ambient operating temperature
: -10 to +55 °C (-10 to 130 �F)°C (-10 to 130 �F) (-10 to 130 �F)
C. Storage temperature
: -30 to +70 °C (-20 to 160 �F)
D. Humidity
: 10 to 90% RH non-condensing
E. Housing
: Cast aluminium case with chemically resist-
ant coating, cover with flexible polycarbonate
window. Case color is off-white (Equivalent
to Munsell 2.5Y8.4/1.2) and cover is
Deepsea Moss green (Equivalent to Munsell
0.6GY3.1/2.0). Cable entry is via two PG13.5
F. Data protection
: EEPROM for configuration and logbook
G. Automatic safeguard
: Return to measuring mode when no key-
IM 12D08B02-01E
nylon glands. Weather resistant to IP65 and
NEMA 4X standards. Pipe wall or panel mounting, using optional hardware.
stroke is made for 10 min.
User’s
Manual
This is a conforming product to KC marking (Korean Certification).
Certification No.: KCC-REM-YHQ-EEN242-2
EQUIPMENT NAME : 2-Wire Transmitter for Conductivity or Resistivity
SC202G, SC202S
DATE OF MANUFACTURE : See the nameplate of the product.
APPLICANT : Yokogawa Electirc Corporation
MANUFACTURER : Yokogawa Electirc Corporation
COUNTRY OF ORIGIN : JAPAN
Model SC202G [Style: S3], SC202S [Style: S3]
2-wire Conductivity or
Resistivity Transmitter
Supplement
KCC-REM-
YHQ-EEN242-2
All Rights Reserved, Copyright © 2008, 1st Edition: Sep.2011 (YK)
Subject to change without notice.
IM 12D08B02-01E-S01
8th Edition
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