Yokogawa SC100 User Manual

User’s
Manual

Model SC100
Panel Mount Conductivity Converter

IM 12D11A01-01E

IM 12D11A01-01E

1st Edition

r Introduction

This manual covers the specifications, installation, operation and maintenance of the
panel-mount version of the SC100 Conductivity converter. Please read this before using
the SC100.
There are manuals for the related EXA100 series as follows:
Refer to them as required.

Model code Manual Name IM No.

PH100 Panel Mount pH Converter IM 12 B11A01-01E
OR100 Panel Mount ORP Converter IM 12 C11A01-01E
SC100 Panel Mount Conductivity Converter IM 12 D11A01-01E
PH10FP KCl Refillable pH Sensor IM 12 B11C01-01E
PH10RP KCl Replenish-free pH Sensor IM 12 B11C02-01E
OR10FP KCl Refillable ORP Sensor IM 12 C11C01-01E
OR10RP KCl Replenish-free ORP Sensor IM 12 C11C02-01E
SC10XB Conductivity Sensor for SC100 IM 12 D11C01-01E
WTB100 Terminal Box for EXA100 IM 12 B11E01-01E
WF100 Extension Cable for EXA100 IM 12 B11F01-01E
PH10HLD Immersion Holder for EXA100 IM 12 B11D01-01E
PH10HG Guide-pipe Holder for EXA100 IM 12 B11D02-01E

T000.eps

Safety Precautions

IM 12D11A01-01E
1st Edition: June. 2003 (YK)
All Rights Reserved, Copyright © 2003, Yokogawa Electric Corporation

IM 12D11A01-01E

i

r For the safe use of this equipment

(1) About This Manual

• 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 will suit the particular purpose of the user.

• Every effort has been made to ensure accuracy in the preparation of this manual.
However, should any errors or omissions come to the attention of the user, 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 used in a manner not specified in this manual, the safety of this
product may be impaired.

(2) Safety and Modification Precautions

• Follow the safety precautions in this manual when using the product to ensure protec­tion and safety of personnel, product and system containing the product.

(3) The following safety symbols are used on the product as well as in this manual.

DANGER

This symbol indicates that the operator must follow the instructions laid out in this
manual in order to avoid the risk of personnel injury, electric shock, or fatalities. The
manual describes what special care the operator must exercise to avoid such risk.

WARNING

This symbol indicates that the operator must refer to the instructions in this manual in
order to prevent the instrument (hardware) or software from being damaged, or a system
failure from occurring.

CAUTION

This symbol draws attention to information essential for understanding the operation and
functions.

Tip

This symbol gives information that complements the current topic.

SEE ALSO

This symbol identifies a source to which to refer.

Protective Ground Terminal

Function Ground Terminal (Do not use this terminal as the protective ground
terminal.)

Alternating current

ii

IM 12D11A01-01E

r NOTICE and Cautions

• Check specifications
When the instrument arrives, unpack the package with care and check that the
instrument has not been damaged during transportation. In addition, please check that
the specification matches the order, and required accessories are not missing. Specifi­cations can be checked by the model codes on the nameplate. Refer to Chapter 1.2
Specifications for the list of model codes.

• Details on operation parameters
When the SC100 panel mount Conductivity Converter is operated without any key
operation at the user site, it will work based on the operation parameters (initial data
Table 5.1 to 5.3) set before shipping from the factory.
Ensure that the initial data is suitable for the operation conditions before conducting
analysis. Where necessary, set the instrument parameters for appropriate operation.
For details of setting data, refer to chapters 4 to 6.
When the operation parameters are changed, it is recommended to note down the
changed setting data.

Safety Precautions

Front Panel of SC100

IM 12D11A01-01E

iii

LED Display Symbols

• Alphanumerics are represented as follows on the LED display

Alphanumerics Alphanumerics AlphanumericsLED Display LED Display LED Display

A

B

C

D

E

F

G

H

I

J

K

L

N

O

P

Q

R

S

T

U

V

W

0

1

2

3

4

5

6

7

8

9

X

Y

M

Z

iv

IM 12D11A01-01E

r After-sales Warranty

d For repair during the warranty period, carry or send the product to the local sales

representative or service office. Yokogawa will replace or repair any damaged parts
and return the product to you.

d Before returning a product for repair under warranty, give us information of the

model name and serial number and a description of the problem. Any diagrams or
data explaining the problems would also be appreciated.

d If we replace the product with a new one, we won’t provide you with a repair report.
d Yokogawa warrants the product for the period stated in the purchase quotation.

Yokogawa shall conduct warranty service based on its standard. When the customer
site is outside of the service area, a fee for dispatching the maintenance engineer will
be charged to the customer.

d In the following cases, customer will be charged for repair fee regardless of warranty

period.

• Failure of components which are out of scope of warranty stated in instruction

manual.

Safety Precautions

• Failure caused by usage of software, hardware or auxiliary equipment, which

Yokogawa Electric did not supply.

• Failure due to improper or insufficient maintenance by user.

• Failure due to modification, misuse or outside-of-specifications operation which

Yokogawa does not authorize.

• Failure due to power supply (voltage, frequency) being outside specifications or

abnormal.

• Failure caused by any usage out of scope of recommended usage.

• Any damage from fire, earthquake, storms and floods, lightning, disturbances, riots,

warfare, radiation and other natural changes.

d Yokogawa does not warrant conformance with the specific application at the user

site. Yokogawa will not bear direct/indirect responsibility for damage due to a specific
application.

d Yokogawa Electric will not bear responsibility when the user configures the product

into systems or resells the product.

d Our maintenance service and the supply of repair parts will be covered for five years

after the production ends. For product repair, please contact the nearest sales office
described in this instruction manual.

IM 12D11A01-01E

v

vi

IM 12D11A01-01E

Contents

r Introduction ...................................................................................................................... i

r For the safe use of this equipment ................................................................................ ii

r NOTICE and Cautions ..................................................................................................iii

r After-sales Warranty ...................................................................................................... v

1. Overview .....................................................................................................................1-1

1.1 EXA SC100 conductivity converter ............................................................... 1-1

1.2 Check the specifications ................................................................................. 1-1

1.3 Features of the EXA SC100 conductivity converter...................................... 1-2

1.4 Standard Specifications ................................................................................... 1-2

2. Preparation for Operation ........................................................................................2-1

2.1 Unpacking ....................................................................................................... 2-1

2.2 Choosing an Installation Location .................................................................. 2-1

2.3 External Dimensions ....................................................................................... 2-2

2.4 Panel Cutout Dimensions................................................................................ 2-3

2.5 Mounting ......................................................................................................... 2-3

3. Wiring..........................................................................................................................3-1

3.1 Direction of cable terminals fixing ................................................................. 3-2

3.2 Noise prevention ............................................................................................. 3-3

3.3 Wiring Terminal Diagram............................................................................... 3-4

3.3.1 Use of EXA SC100 in combination with the SC10XB dedicated

conductivity sensor .................................................................................. 3-5

3.3.2 Use of EXA100 in combination with the SC4A conductivity sensor.... 3-6

3.4 Conductivity sensor detector wiring ............................................................... 3-8

3.4.1 Connection of the SC100 converter and the SC10XB conductivity

sensor ....................................................................................................... 3-8

3.4.2 Connection of SC100 converter and SC4A conductivity sensor ........... 3-8

3.5 Wiring the WF100 Extension Cable............................................................... 3-9

3.6 Output Signal Cable Wiring ........................................................................... 3-9

3.7 Contact output wiring. .................................................................................... 3-9

3.7.1 Wiring when S1 is used .......................................................................... 3-9

3.7.2 Wiring for S2 (for two-contact-output specification) or S2, S3 and

S4 (for four-contact output specification)............................................. 3-11

3.8 Power and Ground Wiring ............................................................................ 3-12

4. Overview of Operation Panel ................................................................................... 4-1

4.1 Overviews of names and functions of operation panel keys ......................... 4-1

4.2 Key Operation ................................................................................................. 4-2

4.3 Switching mode to be Displayed .................................................................... 4-3

IM 12D11A01-01E

vii

4.4 Display examples ............................................................................................ 4-4

4.4.1 Display in Initial model........................................................................... 4-4

4.4.2 Display in Measurement mode ................................................................ 4-5

4.4.3 Calibration mode ..................................................................................... 4-6

4.4.4 Setting mode ............................................................................................ 4-7

5. Operation .................................................................................................................... 5-1

5.1 Start up ............................................................................................................ 5-1

5.1.1 Check wiring ........................................................................................... 5-1

5.1.2 Start up Conductivity Converter ............................................................. 5-1

5.1.3 Data Setting ............................................................................................. 5-1

5.1.4 Preparation for Operation........................................................................ 5-8

5.2 Test Operation ................................................................................................. 5-8

5.3 Normal Operation ............................................................................................ 5-8

5.4 Stopping and Restarting Operation................................................................. 5-8

6. Settings ........................................................................................................................ 6-1

6.1 Setting Cell Constants..................................................................................... 6-1

6.1.1 How to set cell constant .......................................................................... 6-1

6.1.2 Cell Constant ........................................................................................... 6-2

6.1.3 Cell Constant Retention ........................................................................... 6-2

6.2 Temperature Compensation Setting................................................................ 6-2

6.2.1 Determining Temperature Coefficient .................................................... 6-3

6.2.2 Setting Temperature Coefficient ............................................................. 6-4

6.3 Compensation for Wiring Resistance ............................................................. 6-6

6.3.1 Setting Wiring Resistance ....................................................................... 6-6

6.3.2 Temperature Calibration.......................................................................... 6-6

6.4 Zero Calibration (Calibration in Air) .............................................................. 6-7

6.4.1 Procedure for Zero Calibration (Calibration in Air)............................... 6-7

6.5 Calibration with Standard Solution ................................................................. 6-9

6.5.1 Calibration with Standard Solution (when using NaCl for standard

solution) ................................................................................................. 6-10

6.5.2 Calibration (by comparison with reference conductivity meter).......... 6-12

6.5.3 “Procedure for Calibration with Standard Solution”. ........................... 6-12

6.6 Canceling Calibration .................................................................................... 6-14

6.7 Escaping from Error Occurrences During Calibration................................. 6-14

6.7.1 Conditions which cause errors during calibration: ............................... 6-14

6.7.2 How errors are displayed when errors occurs during calibration: ...... 6-14

6.7.3 Procedure for Recovering from Errors ................................................. 6-14

7. Cleaning and Maintenance ....................................................................................... 7-1

7.1 Periodic Maintenance...................................................................................... 7-1

7.1.1 Sensor Cleaning....................................................................................... 7-1

7.1.2 Calibration ............................................................................................... 7-1

7.2 Checks and Preventive Maintenance .............................................................. 7-2

viii

IM 12D11A01-01E

8. Troubleshooting..........................................................................................................8-1

8.1 Determining whether trouble is in Sensor or Converter ................................ 8-1

8.2 Error display.................................................................................................... 8-6

8.3 Things to do when an error is detected .......................................................... 8-7

8.3.1 Error E-1 Conductivity input is out of measurement range ................... 8-7

8.3.2 Error E-2 Temperature measurement is out of range ............................. 8-7

8.3.3 Error E-3 Temperature sensor abnormal ................................................. 8-7

8.3.4 Error E-4 Converter abnormal ................................................................ 8-8

8.3.5 Error E-5 Temperature Compensation Out of Range ............................. 8-8

8.3.6 Calibration Error C-1 Standard solution temperature out of range........ 8-8

8.3.7 Calibration Error C-2 Calibration abnormal ........................................... 8-8

8.3.8 Calibration Error C-3 Zero calibration abnormal ................................... 8-9

8.3.9 Calibration Error C-4 The used standard liquid conductivity out of

measurement range .................................................................................. 8-9

8.4 Things to do when measurement value is abnormal. ..................................... 8-9

Revision Record .................................................................................................................... i

IM 12D11A01-01E

ix

x

IM 12D11A01-01E

1. Overview

1.1 EXA SC100 conductivity converter

The EXA SC100 conductivity converter is a panel-mount unit with built-in general­purpose preamp, large 4-digit LED display for measured value and 4-digit LED display
for settings.

1.2 Check the specifications

The model code and suffix codes are shown below. Make sure that the supplied SC100
is the same as what you ordered.

Model Suffix code Option code Description

SC100

22222

Label language

Contact output

22222

Option

-A

-E

-J

-21

-41

-NN
Unit /UNT

Construction /65

Panel mount conductivity converter
Always -A
English
Japanese
2 contact outputs
4 contact outputs
Always -NN
S/m
IP65

1. Overview

T02.EPS

IM 12D11A01-01E

1-1

1.3 Features of the EXA SC100 conductivity converter

(1) Large 4-digit display. Both measured conductivity value and temperature can be
displayed at the same time.

(2) You can select either two output contacts or four ; and you can select each contact
output type from : high, low, high high, low low, and high high / low low.

(3) An isolated 4 to 20 mA analog output of measured value.
(4) The operation panel is rated for operation in an IP55. IP65 is optional.
(5) 96 mm x 96 mm DIN size panel-mount analyzer. Depth is 120 mm and weight is

600 g.
(6) Full set of self-diagnostic functions with indication of errors such as "out of measure-

ment range", "converter abnormal", "calibration-time error".

1.4 Standard Specifications

Measurement: Conductivity of solution
Measuring range: 0.05mS/cm to 200 mS/cm

Note: Measuring range is defined by the sensor to be used. Maximum range of
applicable sensors (SC10XB and SC4A) is 0 to 2.0 mS/cm.

Indication

Display: Digital (LED)
Range: 0.000mS/cm to 200.0 mS/cm
Indication: Conductivity reading, setting, status, temperature (range: -10 to 1108C)

Input signal

Conductivity input range:

Minimum: 5 mS/cm3K (K: cell constant)

Maximum: 50 mS/cm3K (K: cell constant)
Temperature input: Pt1000/Pt100
Temperature input range: -10 to 1108C

Transmission signal output

Number of output points: 1 point (for output of conductivity reading only)
Output signal: 4 to 20 mA DC, isolated
Load resistance: 600 V or less
Transmission signal range: Configurable within measuring range (initial setting : 0 to

200 mS/cm)
Minimum span: 0 to 0.2 mS/cm
Maximum span: 0 to 200 mS/cm
Note: Configurable range depends on the sensor to be used.

Maintenance output signal: Output hold "enabled/disabled" selectable

Hold output value: Last measured value/preset value (2.0 to 20.8 mA) selectable
Fail output signal: Downscale burndown (2 mA) "enabled/disabled" selectable

1-2

IM 12D11A01-01E

Contact output

Contact type : Relay contact output
Number of contacts : 2 or 4 outputs (must be specified when ordering)
Contact action : On/Off action
Contact functions : Selectable; High, low, high-high, low-low, high-high/low-low limit

alarms, FAIL
Contact output hysteresis : 0 to 100% (configurable)
Contact output delay time : 0 to 200 seconds (configurable)

Contact rating :
When 2 contact outputs specified

S1 : 240 VAC 3A or 30 V DC 3A (resistance load), Form C (NC/NO/COM, 3
terminals)
S2 : 240 VAC 3A or 30 V DC 3A (resistance load), Form A (NO/COM, 2
terminals)

When 4 contact outputs specified

S1 : 240 VAC 3A or 30 V DC 3A (resistance load), Form C (NC/NO/COM, 3
terminals)
S2, S3, S4 : 240 V AC 3A or 30 V DC 3A (resistanceload), Form A, shared common
Maximum load current on common is 3A.

Contact status:

Table 1.1

Contact

S1 NO-COM Open Open Closed Open Closed Open
NC-COM Closed Closed Open Closed Open Closed
S2 Open Open Closed Open Closed Open
S3 when specified Open Open Closed Open Closed Open
S4 when specified Open Open Closed Open Closed Open

Note: When a contact is activated, the LED on display panel turns on.

Function selected

H, L, HH, LL, HH/LL limit alarms FAIL

Power off

Power on

No alarm Alarm No alarm Alarm

Power off

Power on

Terminal

1

S1

2

COM

3

4

S2

5

S3

6

S4

COM

7

1. Overview

NC
NO

IM 12D11A01-01E

Ambient temperature : -5 to 45 8C
Installation altitude: 2000 m or less above sea level
Storage temperature : -25 to 70 8C
Ambient humidity : 10 to 90% RH, non-condensing
Construction : Front panel : Dust-proof and drip-proof construction IP55,

IP65 (when “/65” option specified)
Materials : ABS resin and polycarbonate
Case color : Black
Rated Power supply : voltage : 100 to 240 V AC (610%), 50/60 Hz
Power consumption : Max. 9 VA
Weight : Approx. 600g
Dimensions : 96 (W) 3 96 (H) 3 120 (D) mm
Mounting : Panel mount
Panel cutout dimensions : 92 (W) 3 92 (H) mm
Wiring : M3.5 screw terminal
Grounding : grounding resistance 100 V or less

1-3

Conformance to Safety and Standards

Conforms to IEC1010-1: 1990 and EN61010-1: 1992.
Certified for CSA1010.
The overvoltage category of each input is CAT II (IEC1010-1)
Certified for UL61010C. *l
*l
"Overvoltage category (Installation category)" describes a number which defines a
transient overvoltage condition. It implies the regulation for inpulse withstand voltage.
" II " applies to electrical equipment which is supplied from the fixed installation like
distribution board.
" I " applies to electrical equipment which is supplied from the circuit when appropri­ate transient overvoltage control means (interfaces) are provided.

Note: CSA, UL are pending.

Functional specifications

Reference temperature conversion:0.00 to 10.00%/8C or NaCl coefficient compensation
Reference temperature setting range: 0 to 1008C
Cell constant setting range: 0.0001 to 12.00 cm

-1

Temperature value adjustment (cable length correction by temperature 1-point calibration)
Sensor cable length correction

Calibration function

Manual zero calibration (air calibration)
Span calibration (specified setting by specified solution, 1-point calibration)
Note: Temperature indication is available during manual calibration

Self-diagnostics function

FAIL output: Measuring range failure, temperature range failure, temperature sensor

failure, converter failure, invalid temperature compensation
Error indication: Calibration value failure, abnormal temperature range during calibration,

calibration solution measuring range failure

Converter performance: under normal operating conditions

Repeatability: 61% of span

Note: Span refers to the one of input range.
Temperature reproducibility: 618C
Transmission output accuracy: 60.3% of span

Note: Span refers to one of transmission signal output range.
Applicable sensors:

SC10XB Conductivity Sensor for SC100

Cable lenght : 3,5,10m
Extension cable length : up to 50m (Using the WTB100 terminal box)
Note : Extension cable length means that total cable length including sensor
cable is within 50m
Wetted part materials :
In applying piping adapter : SUS316, polypropylene and rigid PVC resin

(SC10XB) rigid PVC resin (adapter), Viton

R

fluoroelastomer (O-ring for adapter)

In applying drop-in-type : SUS316, polypropylene, ridid PVC resin, silicone

rubber, PPS regin chlorinated polythylene rubber

(for cable seath)
SC4A 2-electrode Conductivity Sensor
Note: Refer to document GS12D08F03-01E when using SC4A sensor.

1-4

IM 12D11A01-01E

2. Preparation for Operation

2.1 Unpacking

When the instrument arrives, unpack the package with care and check that the instru­ment has not been damaged during transportation. In addition, please check that the
specification matches the order, and required accessories are not missing.

2.2 Choosing an Installation Location

WARNING

To minimize the danger of shock, the converter should be mounted on a panel for the
converter when power is applied.

2. Preparation for Operation

Cautions in choosing a mounting location

CAUTION

(1) Mount the converter in a location which allows adequate space for access from the

rear for wiring and the like,

(2) Ideally the converter should be on the rear of a panel, so that unauthorized personnel

will not have access to the terminals,
(3) The converter should be located in a place with minimal vibration,
(4) The converter should not be exposed to corrosive gas atmospheres,
(5) Temperature should be near normal (23 8C) with minimal change,
(6) Humidity should be between 10% and 90% RH,
(7) The converter should not be exposed to direct heat radiation,
(8) The converter should not be exposed to strong magnetic fields,
(9) The converter should not be exposed to water or moisture to be condensed,
(10) The converter should not be mounted near flammable materials,
(11) The converter should not be exposed to strong UV light.

The case of the converter is made of flam-retarded polycarbonate resin, and the bezel is
flam-retarded ABS resin, so the converter should not be mounted above flammable
materials.

IM 12D11A01-01E

If the converter is mounted near flammable materials against our caution, cover the
converter by a plated steel plate at least 1.43 mm thick, or an uncoated steel plate of
thickness 1.6 mm, separating the material from the converter top, bottom, left and right
sides by a clearance of least 150 mm.

2-1

150 mm

Fig. 2.1

2.3 External Dimensions

• SC100 Converter

150 mm

150 mm

150 mm

F2.1.EPS

Unit: mm

S3

S1

S4

S2

ENT

Fig. 2.2

EXASC100

96

CANCEL

51-60 21-3031-4041-501-10 11-20

Power supply terminal cover

11111

91.6 Max.

mS/cm
mS/cm

MEASCALSET

96

91.6

111

Panel depth: 1 to 10

100

F2.2E.EPS

2-2

IM 12D11A01-01E

2.4 Panel Cutout Dimensions

2. Preparation for Operation

145 Min.

Fig. 2.3

125 Min.

92

+0.8
0

Unit : mm

+0.8

0

92

IM 12D11A01-01E

2-3

2.5 Mounting

Insert from this
Side of panel

Large brackct (mount at top)

Panel

Terminal board

Insert driver to
tighten bracket

Small bracket (mount at bottom)

Fig. 2.4

Procedure 1

Cut panel out to mount the SC100 converter, referring to cutout dimensions shown

on previous page.

Procedure 2

Insert the rear of the converter (terminal block side) in panel cutout.

Procedure 3

Mount top and bottom brackets (see figure) to fix the converter to panel.

*When detector output is to be prewired, refer to Sec. 3.4(2)

WARNING

When mounting the converter to the cutout, do not tightly fit them, do not force it
because its case or mounting brackets may be damaged.

2-4

IM 12D11A01-01E

WARNING

Install the converter within below 308 from the line perpendicular to the panel board.
Do not face the front of the converter upward.

2. Preparation for Operation

Up to 308

Fig. 2.5

F2.5.EPS

IM 12D11A01-01E

2-5

2-6

IM 12D11A01-01E

3. Wiring

This section explains wiring of the EXA SC100 conductivity converter.

WARNING

Be sure to turn off power supply, and make sure, with a tester or the like, that the
dangerous voltage is not applied to cable to be connected. Do not touch terminals if power
be applied.

The recommended specifications for wiring terminals are shown below.
Use crimp-on terminals, designed to fit an ISO M3.5 screw, with an insulating sleeve.

3. Wiring

3.7mm\

Up to 7mm

Fig. 3.1

Table 3.1 Recommended terminals

Maker

Japan AMP Co., Ltd
JST Co., Ltd

model

1.25-YS3A
YD1.25-3.5

For wire size:

0.3~1.65mm

Up to 7mm

3.7mm

Tightening torque

0.8N . m (8 kgf . cm) Up to or Iess

F3.1.EPS

T3.1.EPS

IM 12D11A01-01E

3-1

3.1 Direction of cable terminals fixing

When wiring cables to terminals on the rear of the instrument, put the cable terminals in
the terminal face of the converter in such direction as to draw the cable to left side. (see
Fig. 3.2)

CAUTION

There’s a terminal wiring diagram on the nameplate on the side of the converter.

Put in cable terminals from left side

Terminal name Terminal name

S1(NC)
S1(NO)
COM1

S2

S3

S4

COM2

L
N

10

1
2
3
4
5
6
7
8
9

16

11
12
13
14
15

17
18
19
20

C1
C2

S
I1

I 2

T1
T2

mA (1)
mA (2)

Power
cable

Ground
cable

Conductivity
sensor
cable

Analog output
cable

Converter rear panel

Fig. 3.2 Direction to put cable terminals

F3.2.EPS

3-2

IM 12D11A01-01E