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ABB AX411, User Manual

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ABB AX411 User Manual Download Page 47

45

8

SIMPLE FAULT FINDING

8.1

Error Messages

If erroneous or unexpected results are obtained the fault may be
indicated by an error message – see Table 8.1. However, some
faults may cause problems with analyzer calibration or give
discrepancies when compared with independent laboratory
measurements.

8.2

No Response to Conductivity Changes

The majority of problems are associated with the conductivity
cell which must be cleaned as an initial check. It is also important
that all program parameters have been set correctly and have
not been altered inadvertently – see Section 5.

If the above checks do not resolve the fault:

a) Check the analyzer responds to a resistance input.

Disconnect the conductivity cell cable and connect a
suitable resistance box directly to the analyzer input – see
Section 6.4. Select the

CONFIG. SENSORS

page and and set

Temp.Comp.

to

None

– see Section 5.3. Check the analyzer

displays the correct values as set on the resistance box – see
Table 8.2 or use the expression:

R =

K x 10

6

G

Where: R = resistance

K = cell constant
G = conductivity

Failure to respond to the input indicates a fault with the analyzer
which must be returned to the Company for repair. A response,
but with incorrect readings, usually indicates an electrical
calibration problem. Re-calibrate the analyzer as detailed in
Section 7.3.

b) If the response in a) is correct, reconnect the conductivity cell

cable and connect the resistance box to the cell end.
Check the analyzer displays the correct values as set on the
resistance box in this configuration.

If the analyzer passes check a) but fails check b), check the
cable connections and condition. If the response for both
checks is correct, replace the conductivity cell.

8.3

Checking the Temperature Input

Check the analyzer responds to a temperature input.
Disconnect the Pt100/Pt1000 leads and connect a suitable
resistance box directly to the analyzer inputs – see Section 6.4.
Check the analyzer displays the correct values as set on the
resistance box – see Table 8.3.

Incorrect readings usually indicate an electrical calibration
problem. Re-calibrate the analyzer as detailed in Section 7.3.

Table 8.3 Temperature Readings for Resistance Inputs

Table 8.1 Error Messages

Table 8.2 Conductivity Readings for Resistance Inputs

e

g

a

s

s

e

M

r

o

r

r

E

e

s

u

a

C

e

l

b

i

s

s

o

P

0

0

1

t

P

Y

T

L

U

A

F

:

A

0

0

0

1

t

P

Y

T

L

U

A

F

:

A

d

e

t

a

i

c

o

s

s

a

/

r

o

t

a

s

n

e

p

m

o

c

e

r

u

t

a

r

e

p

m

e

T

n

e

p

o

r

e

h

t

i

e

e

r

a

A

r

o

s

n

e

S

r

o

f

s

n

o

i

t

c

e

n

n

o

c

.

t

i

u

c

r

i

c

t

r

o

h

s

r

o

t

i

u

c

r

i

c

0

0

1

t

P

Y

T

L

U

A

F

:

B

0

0

0

1

t

P

Y

T

L

U

A

F

:

B

d

e

t

a

i

c

o

s

s

a

/

r

o

t

a

s

n

e

p

m

o

c

e

r

u

t

a

r

e

p

m

e

T

n

e

p

o

r

e

h

t

i

e

e

r

a

B

r

o

s

n

e

S

r

o

f

s

n

o

i

t

c

e

n

n

o

c

.

t

i

u

c

r

i

c

t

r

o

h

s

r

o

t

i

u

c

r

i

c

H

G

I

H

.

T

A

C

E

R

O

F

E

B

n

o

i

t

a

c

e

h

t

e

r

o

f

e

b

e

u

l

a

v

y

t

i

v

i

t

c

u

d

n

o

c

e

h

T

0

1

d

e

d

e

e

c

x

e

s

a

h

t

i

n

u

e

g

n

a

h

c

x

e

µ

.

m

c

/

S

H

G

I

H

.

T

A

C

R

E

T

F

A

n

o

i

t

a

c

e

h

t

r

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l

a

v

y

t

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a

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a

h

c

x

e

.

t

i

m

il

d

e

m

m

a

r

g

o

r

p

)

K

(

t

n

a

t

s

n

o

C

l

l

e

C

y

t

i

v

i

t

c

u

d

n

o

C

µ

m

c

S

1

–

)

G

(

5

0

.

0

1

.

0

0

.

1

)

R

(

e

c

n

a

t

s

i

s

e

R

5

5

0

.

0

k

1

9

0

.

9

0

9

Ω

–

–

1

.

0

k

0

0

5

Ω

M

1

Ω

–

5

.

0

k

0

0

1

Ω

k

0

0

2

Ω

–

1

k

0

5

Ω

k

0

0

1

Ω

M

1

Ω

5

k

0

1

Ω

k

0

2

Ω

k

0

0

2

Ω

0

1

k

5

Ω

k

0

1

Ω

k

0

0

1

Ω

0

5

k

1

Ω

k

2

Ω

k

0

2

Ω

0

0

1

0

0

5

Ω

k

1

Ω

k

0

1

Ω

0

0

5

0

0

1

Ω

0

0

2

Ω

k

2

Ω

0

0

0

1

–

0

0

1

Ω

k

1

Ω

0

0

0

5

–

–

0

0

2

Ω

0

0

0

0

1

–

–

0

0

1

Ω

e

r

u

t

a

r

e

p

m

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T

°

C

(

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R

t

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Ω

)

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P

0

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P

0

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0

1

0

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1

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9

.

3

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1

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9

3

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2

9

7

.

7

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1

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9

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7

7

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1

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2

3

7

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9

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1

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3

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7

9

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7

6

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1

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6

1

1

1

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4

4

5

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5

1

1

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4

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5

5

1

1

0

5

0

4

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9

1

1

0

0

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4

9

1

1

0

6

4

2

.

3

2

1

0

4

.

2

3

2

1

0

7

7

0

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7

2

1

0

7

.

0

7

2

1

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8

9

8

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0

3

1

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9

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8

0

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1

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9

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7

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4

3

1

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0

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7

4

3

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0

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1

0

5

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8

3

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5

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0

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1

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Summary of Contents for AX411

Page 1: ...AX400 Series User Guide Model AX411 Dual Input Conductivity Analyzer ...

Page 2: ... conditions result in degraded process system performance leading to personal injury or death Therefore comply fully with all Warning and Caution notices Information in this manual is intended only to assist our customers in the efficient operation of our equipment Use of this manual for any other purpose is specifically prohibited and its contents are not to be reproduced in full or part without ...

Page 3: ...e 6 INSTALLATION 29 6 1 Siting Requirements 29 6 2 Mounting 30 6 2 1 Wall Pipe mount Analyzers 30 6 2 2 Panel mount Analyzers 31 6 3 Connections General 32 6 3 1 Relay Contact Protection and Interference Suppression 33 6 3 2 Cable Entry Knockouts Wall Pipe mount Analyzer 34 6 4 Wall Pipe mount Analyzer Connections 35 6 4 1 Access to Terminals 35 6 4 2 Connections 36 6 5 Panel mount Analyzer Connec...

Page 4: ...sed with two sensors readings can be compared to produce a range of extrapolated values When making temperature compensated measurements the sample temperature is sensed by a resistance thermometer Pt100 or Pt1000 mounted in the measuring cell Analyzer operation and programming are performed using five tactile membrane keys on the front panel Programmed functions are protected from unauthorized al...

Page 5: ...ust Parameter X Y Z Select New value is automatically stored Menu 1 Menu 2 Advance to next menu 2 1 Powering Up the Analyzer Caution Ensure all connections are made correctly especially to the earth stud see Section 6 3 1 Ensure the input sensors are connected correctly 2 Switch on the power supply to the analyzer A start up screen is displayed while internal checks are performed then the conducti...

Page 6: ... TDS Units Config Sensor B B Cond Units B Cell Constant B Temp Comp B Temp Sensor B Temp Coeff B TDS Factor B TDS Units CONFIG DISPLAY Set Language Set Temp Units Set Backlight LED Backlight Temp Units English A Enable Cals Use the Sidescroll Key to scroll through the Pages within each Menu Use the Menu Key to scroll through the Menus To CONFIG ALARMS see Fig 2 3B Sensor Cal B B Calibration B Sens...

Page 7: ...ntenance Hold Outputs To FACTORY SETTINGS see Section 7 3 Page 40 Config Alarm 3 A3 Type AO1 Set Y Value AO1 Default O P AO1 Default Val Available only if the analog option board is fitted Key Config Output 2 AO2 Assign AO2 Range AO2 Curve AO2 Span Value AO2 Zero Value AO2 Set X Value AO2 Set Y Value AO2 Default O P AO2 Default Val Config Output 3 AO3 Assign AO3 Range AO3 Curve AO3 Span Value AO3 ...

Page 8: ...pH Uses an algorithm to calculate the pH value of the solution inferred from its conductivity See Appendix A3 for further information on inferred pH See Section 3 1 If sensor calibration enabled see Section 4 1 If Alter Sec Code is not set to zero see Section 5 1 If Alter Sec Code is set to zero see Section 5 2 Dual Cond 5 000uS cm 4 860uS cm Temperature 25 6Deg C 24 4Deg C VIEW SETPOINTS SENSOR C...

Page 9: ...r B Temperature Alarm 4 Set Point Dual Input Conductivity only Note Alarm 4 is available only if the optional analog output board is fitted Alarm 5 Set Point Note Alarm 5 is available only if the optional analog output board is fitted Return to main menu If sensor calibration enabled see Section 4 1 If Alter Sec Code is not set to zero see Section 5 1 If Alter Sec Code is set to zero see Section 5...

Page 10: ...3 3 View Hardware Sensor A Module Shows the type of sensor connected to the analyzer s Sensor A input Sensor B Module Dual Input Conductivity only Shows the type of sensor connected to the analyzer s Sensor B input Option Board Shows the type of option board fitted to the analyzer if applicable See Section 3 4 If sensor calibration enabled see Section 4 1 If Alter Sec Code is not set to zero see S...

Page 11: ...rating Page if optional analog output board not fitted see Section 2 3 If sensor calibration enabled see Section 4 1 If Alter Sec Code is not set to zero see Section 5 1 If Alter Sec Code is set to zero see Section 5 2 3 5 View Clock Note The VIEW CLOCK function is available only if the optional analog output board is fitted Date Shows the current date Time Shows the current time Operating Page se...

Page 12: ...he display reverts to the SENSOR CAL page Note Applicable only if Alter Cal Code is not set to zero see Section 5 8 Calibrate Sensor A Dual input conductivity only Sensor B calibration is identical to Sensor A calibration Single input conductivity only return to main menu Edit or Reset Calibration Select Edit to manually adjust the Slope and Offset values of the process and temperature sensors Sel...

Page 13: ...e offset within the valid range 40 0 to 40 0 C 40 to 104 F until the temperature reading is correct Dual input conductivity only Sensor B calibration is identical to Sensor A calibration Single input conductivity only return to main menu If Alter Sec Code is not set to zero see Section 5 1 If Alter Sec Code is set to zero see Section 5 2 Reset Calibration Select Yes and press to reset the calibrat...

Page 14: ...meters If an incorrect value is entered access to subsequent programming pages is prevented and the display reverts to the Operating Page see Section 2 3 Note This item is displayed only if Alter Sec Code is not set to zero see Section 5 8 See Section 5 2 Security Code 0000 CONFIG DISPLAY 5 1 Security Code ...

Page 15: ...t option On Backlight is always on Auto Backlight comes on at each button press and switches off one minute after the last button press Return to main menu See Section 5 3 CONFIG DISPLAY Set Language Temp Units Off Set Temp Units Deg F Deg C LED Backlight Set Backlight On Auto CONFIG DISPLAY CONFIG SENSORS Set Backlight Set Temp Units Set Temp Units Set Language Set Backlight Set Backlight Set Bac...

Page 16: ...gure Sensor A Dual input conductivity only Sensor B configuration is identical to Sensor A configuration Single input conductivity only return to main menu Continued on next page Config Sensor A Cond CONFIG SENSORS Config Sensor B A Cond Units CONFIG SENSORS ...

Page 17: ... i v i t c u d n o C m u m i n i M e g n a R y t i v i t c u d n o C m u m i x a M e g n a R 1 0 0 1 0 o t 0 µ m c S 1 0 0 0 1 o t 0 µ m S 1 0 0 0 1 o t 0 µ m c S 1 0 0 0 0 1 o t 0 µ m S 1 5 0 0 5 0 o t 0 µ m c S 1 0 0 0 5 o t 0 µ m S 1 0 0 0 5 o t 0 µ m c S 1 0 0 0 0 1 o t 0 µ m S 1 0 1 0 1 o t 0 µ m c S 1 0 0 1 o t 0 µ m S 1 m S m 1 0 o t 0 1 0 0 0 1 o t 0 µ m c S 1 0 0 0 0 1 o t 0 µ m S 1 m S m...

Page 18: ...ature effect of pure water with trace caustic is required Example Inferred pH in caustic dosed waters applications NaCl Select when temperature effect of pure water with trace salts is required Examples General monitoring applications Mixed bed exchanger applications Final polisher effluent applications Cation exchanger inlet applications Anion exchanger in bed and outlet applications Reverse osmo...

Page 19: ...ular application see Appendix A2 Enter the required TDS factor between 0 4 and 0 8 For salinity applications set the TDS factor to 0 5 TDS Units Note Displayed only if Cond Units is set to TDS see page 15 Select the TDS units ppm mg l or mg kg Enable Calibration If Sensor Calibration is required select Yes If No is selected the sensor calibration menus for Sensor A are disabled Dual input conducti...

Page 20: ...set to uS cm and temperature compensation for Sensor A is set to NaOH or NH3 Ratio A B Calculates the ratio of the two conductivity inputs Difference A B Calculates the difference between the two conductivity inputs Passage Calculates the amount of conductivity as a percentage that passes through the cation exchange unit Rejection Calculates the amount of conductivity as a percentage that is absor...

Page 21: ...f Alarm 1 Action selected see next page Sen A The analyzer alerts the operator if the conductivity of the process fluid measured by the selected sensor exceeds or drops below the value set in the Alarm 1 Set Point parameter see next page depending on the type of Alarm 1 Action selected opposite see next page Notes 1 Sensor B alarms and signal calculation are applicable only to dual input conductiv...

Page 22: ...nd 5 of the alarm set point value Set the required hysteresis adjustable in steps of 0 1 Alarm 1 Delay When an alarm condition occurs the activation of the relays and LEDs is delayed for the specified time period If the alarm clears within the period the alarm is not activated Set the required delay in the range 0 to 60 seconds in steps of 1 second Alarm 2 and Alarms 3 and 4 if optional analog out...

Page 23: ...y but no Hysteresis 5 4 Configure Alarms Relay Energized LED Off Relay De energized LED On Process Variable High Set Point Relay Energized LED Off Relay De energized LED On Process Variable Hysteresis High Set Point Relay Energized LED Off Relay De energized LED On Process Variable High Set Point Delay Hysteresis Relay De energized LED Off Relay Energized LED On Process Variable High Set Point Rel...

Page 24: ...t to Difference A B A B If Signal Calc is set to Ratio A B pH If Signal Calc is set to Inferred pH see Appendix A3 for further information on inferred pH Range Set the analog output current range for the selected output Curve Select the analog output scale required Linear Straight line between zero and span Bi Lin Bi linear see Fig 5 6 Log 2 Logarithmic 2 decades see Fig 5 7 Log 3 Logarithmic 3 de...

Page 25: ... Note Applicable only if the Curve parameter is set to Bi Lin see opposite Default Output Set the system reaction to failure Off Ignore failure and continue operation On Stop on failure This drives the analog output to the level set in the Default Val parameter below Hold Hold the analog output at the value prior to the failure Default Value The level to which the analog output is driven if a fail...

Page 26: ... a n A d e t c e l e s o t g n i d r o c c a y l l a c i t a m o t u a t e S r a e n i L n i l i B 2 g o L 3 g o L 2 5 e l b a T r e p s a e g n a r m u m i n i m a o t t c e j b u S 2 5 e l b a T r e p s a e g n a r m u m i n i m a o t t c e j b u S n a p S t u p t u O g o l a n A f o 0 1 n a p S t u p t u O g o l a n A f o 1 0 M s t i n U y t i v i t c u d n o C f I Ω m c m u m i n i m 0 0 2 m u...

Page 27: ... Span Value Analog Output 0 10 20 30 40 50 60 70 80 90 100 Fig 5 7 Logarithmic Output 2 Decade 5 6 3 Logarithmic Output 3 decade Fig 5 8 Conductivity Measurement shown as of Analog Output Span Value Analog Output 1 100 10 0 10 20 30 40 50 60 70 80 90 100 5 6 Output Functions 5 6 2 Logarithmic Output 2 decade Fig 5 7 ...

Page 28: ...ss or to adjust each field Time Set the time in the form hh mm Press to move between hours and minute fields Press or to adjust each field Press the appropriate button to set the clock or abort the changes Note Press to Set and Press to Abort are displayed alternately on the lower display line Return to main menu See Section 5 8 Set Clock Date 01 01 01 Time 12 00 CONFIG CLOCK Format mm dd yy dd mm...

Page 29: ...n 0000 and 19999 Alter Calibration Code Set the sensor calibration access code to a value between 0000 and 19999 Return to main menu See Section 5 9 Alter Sec Code 00000 Alter Cal Code 00000 CONFIG SECURITY TEST MAINTENANCE CONFIG SECURITY Alter Sec Code 5 8 Configure Security ...

Page 30: ...n 7 3 Test remaining outputs Maintenance Hold Outputs Enables the relay action and analog outputs to be maintained On Changes in relay action and analog outputs are inhibited Off Changes in relay action and analog outputs are not inhibited Auto Hold is released automatically after six hours Note The LEDs flash while the analyzer is in Hold mode Return to main menu See Section 7 3 Test Outputs TEST...

Page 31: ...ount the analyzer at eye level allowing an unrestricted view of the front panel displays and controls Fig 6 1 Siting Requirements C Within Environmental Limits B Within Temperature Limits A Maximum Distance Between Analyzer and Cell Conductivity Cell Maximum Distance 50m 137 5 ft cell constant 0 1 100m 275 ft cell constant 0 1 65 C Max 20 C Min IP66 NEMA 4X 6 INSTALLATION ...

Page 32: ...g Position U bolts on pipe Position plate over U bolts Secure transmitter to mounting plate Secure plate A Wall mounting Mark fixing centres see Fig 6 2 Drill suitable holes Secure instrument to wall using suitable fixings 1 2 3 4 1 2 3 61 23 8 OD Vertical or Horizontal Post Fig 6 3 Wall Pipe mounting 6 2 Mounting 6 2 1 Wall Pipe mount Analyzers Figs 6 2 and 6 3 ...

Page 33: ...in their slots Secure the analyzer by tightening the panel clamp retaining screws Loosen the retaining screw on each panel clamp Remove the panel clamp and anchors from the instrument case Cut a hole in the panel see Fig 6 4 for dimensions Instruments may be close stacked to DIN 43835 1 2 3 4 5 6 Fig 6 5 Panel mounting 6 2 Mounting 6 2 2 Panel mount Analyzers Figs 6 4 and 6 5 Caution The clamp mus...

Page 34: ...ly ideally in earthed metal conduit Use twisted pair output leads or screened cable with the screen connected to the case earth stud Ensure that the cables enter the analyzer through the glands nearest the appropriate screw terminals and are short and direct Do not tuck excess cable into the terminal compartment Cable glands conduit fittings ensure that the NEMA4X IP66 rating is not compromised wh...

Page 35: ... the value of the resistor capacitor network depends on the load current and inductance that is switched Initially fit a 100R 0 022µF RC suppressor unit part no B9303 as shown in Fig 6 6A If the analyzer malfunctions locks up display goes blank resets etc the value of the RC network is too low for suppression and an alternative value must be used If the correct value cannot be obtained contact the...

Page 36: ...utside Secure the cable gland with the securing nut 2 3 4 6 Cable entry knockouts Factory fitted cable gland 1 Release the captive screws and remove the terminal cover plate Fig 6 7 Cable Entry Knockouts Wall Pipe mount Analyzer 6 3 Connections General 6 3 2 Cable Entry Knockouts Wall Pipe mount Analyzer Fig 6 7 The analyzer is supplied with 7 cable glands one fitted and six to be fitted as requir...

Page 37: ...cuits and high common mode voltages are switched off 6 4 Wall Pipe mount Analyzer Connections 6 4 1 Access to Terminals Fig 6 8 Fig 6 8 Access to Terminals Wall Pipe mount Analyzer Release Captive Screws and Remove Terminal Cover Plate Terminal Block A Terminal Block B Terminal Block C Analog Option Board Earth Ground Stud ...

Page 38: ... A13 A14 Analog Output 2 A15 A16 B16 B15 B14 B13 B12 B11 B10 B9 B8 B7 B6 B5 B4 B3 B2 B1 TC Third Lead Common TC Third Lead Common Temperature Compensator Connections Dual Conductivity Only When a 2 wire Pt100 Pt1000 or balco 3k temperature compensator is fitted TC Temperature Compensator Terminal Block B Conductivity Cell Connections Sensor B Sensor A 1 9 TC Common Link B1 to B2 Dual Conductivity ...

Page 39: ...h voltage operated control circuits and high common mode voltages are switched off 6 5 Panel mount Analyzer Connections 6 5 1 Access to Terminals Fig 6 10 Terminal Block C Analog Option Board Terminal Block B Terminal Block A Earth Ground Stud Fig 6 10 Access to Terminals Panel mount Analyzers ...

Page 40: ...y 5 C12 NO C13 Analog Output 3 C14 C15 Analog Output 4 C16 Temperature Compensator Connections Terminal Block B Common Third Lead TC B1 B2 B3 B4 B5 B6 B7 B8 B9 B10 B11 B12 B13 B14 B15 B16 Common Third Lead TC Temperature Compensator Connections Dual Conductivity Only When a 2 wire Pt100 Pt1000 or balco 3k temperature compensator is fitted TC Temperature Compensator Terminal Block B Conductivity Ce...

Page 41: ...Switch off the supply and disconnect the conductivity cell s temperature compensator s and current output s from the analyzer s terminal blocks b Sensor A 1 Link terminals B9 and B10 2 Link terminal B12 to the Case Earth Stud see Fig 6 8 3 Connect the 0 to 10k decade r esistance box to terminals B13 and B14 to simulate the conductivity cell Connect the decade box earth to the Case Earth Stud 4 Con...

Page 42: ...T Zero 1K0 A T Span 1K5 B T Span 1K5 Available only if the analog option board is fitted Dual conductivity only Key Load Save Config Factory Config User Config Alter Fact Code Cal Output 3 Cal Output 4 O3 Adjust 4mA O4 Adjust 4mA O3 Adjust 20mA O4 Adjust 20mA Press To Abort Press To Set Cal Output 2 O2 Adjust 4mA O2 Adjust 20mA Use the Sidescroll Key to scroll through the Pages within each Menu Us...

Page 43: ... simulator The display advances automatically to the next step once a stable and valid value is recorded Note The upper 6 segment display shows the measured input voltage Once the signal is within range the lower 6 segment display shows the same value and Calib is displayed to indicate that calibration is in progress Resistance Span 2k Set the cell simulator to 2k The display advances automaticall...

Page 44: ...erature Span 150R Set the temperature simulator to 150 The display advances automatically to the next step once a stable and valid value is recorded Temperature Zero 1k Set the temperature simulator to 1000 The display advances automatically to the next step once a stable and valid value is recorded Temperature Span 1k5 Set the temperature simulator to 1500 The display returns automatically to Cal...

Page 45: ...does not affect the reading See below Return to Operating Page Calibrate Output 2 Note Output 2 and outputs 3 and 4 if optional analog output board is fitted calibration is identical to Output 1 calibration If optional analog output board is fitted Optional analog output board not fitted see page 44 If optional analog output board is fitted Optional analog output board not fitted see page 44 Retur...

Page 46: ... only if Load Save Config is set to Yes Load Factory Config resets all the parameters in the Configuration Pages to the Company Standard Save User Config saves the current configuration into memory Load User Config reads the saved user configuration into memory Notes 1 Load User Config is displayed only if a User Configuration has been saved previously 2 Press to Set and Press to Abort are display...

Page 47: ...istance box directly to the analyzer inputs see Section 6 4 Check the analyzer displays the correct values as set on the resistance box see Table 8 3 Incorrect readings usually indicate an electrical calibration problem Re calibrate the analyzer as detailed in Section 7 3 Table 8 3 Temperature Readings for Resistance Inputs Table 8 1 Error Messages Table 8 2 Conductivity Readings for Resistance In...

Page 48: ...ctivity levels above 1µS cm 1 the generally accepted expression relating conductivity and temperature is Gt G25 1 t 25 Where Gt conductivity at the temperature t C G25 conductivity at the standard temperature 25 C temperature coefficient per C At conductivities between 1µS cm 1 and 1 000µS cm 1 lies generally between 0 015 C and 0 025 C When making temperature compensated measurements a conductivi...

Page 49: ...n p p m is totally dependent on the properties of the solution being measured In simple solutions where only one electrolyte is present the conductivity TDS ratio can easily be ascertained e g 0 5 in the case of sodium chloride However in complex solutions where more than one electrolyte is present the ratio is not easily calculated and can only be reliably determined by laboratory testing e g pre...

Page 50: ... low is the inferred pH value validated The dual input conductivity analyzer when used to monitor direct and after cation conductivities on a sample automatically calculates the inferred pH for the most commonly used pH correction chemicals when programmed to do so The user configurable after cation conductivity alarm is used to detect other impurities in the sample and can thus inform the user of...

Page 51: ...ne dot matrix Environmental Data Operating temperature limits 20 to 65 C 4 to 149 F Storage temperature limits 25 to 75 C 13 to 167 F Operating humidity limits Up to 95 RH non condensing EMC Emissions and immunity Meets requirements of EN61326 for an industrial environment EN50081 2 EN50082 2 Analog Retransmission Number of signals Two fully isolated outputs supplied as standard Four fully isolate...

Page 52: ...nal Power consumption 10VA Insulation Mains to earth line to ground 2kV RMS Safety General safety EN61010 1 Overvoltage Class II on inputs and outputs Pollution category 2 Hazardous area approvals ATEX Type n Pending FM non incendive Class I Division 2 Pending CSA non incendive Class I Division 2Pending Mechanical Data Panel mount versions IP66 NEMA4X Dimensions 192mm high x 230mm wide x 94mm deep...

Page 53: ...51 NOTES ...

Page 54: ...52 NOTES ...

Page 55: ...rial Analytics Instrumentation pH conductivity and dissolved oxygen transmitters and sensors ammonia nitrate phosphate silica sodium chloride fluoride dissolved oxygen and hydrazine analyzers Zirconia oxygen analyzers katharometers hydrogen purity and purge gas monitors thermal conductivity Customer Support We provide a comprehensive after sales service via a Worldwide Service Organization Contact...

Page 56: ...ned herein without notice Printed in UK 06 02 ABB 2002 ABB Limited Oldends Lane Stonehouse Gloucestershire GL10 3TA UK Tel 44 0 1453 826661 Fax 44 0 1453 827856 ABB Inc 2175 Lockheed Way Carson City NV 89706 USA Tel 1 0 775 883 4366 Fax 1 0 775 883 4373 ABB has Sales Customer Support expertise in over 100 countries worldwide www abb com ...

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