EUTECH INSTRUMENTS ALPHA CON 100 CONDUCTIVITY CONTROLLERTRANSMITTER Instruction manual

Instruction Manual
αlpha CON 190
1/8 DIN Conductivity Controller with
Temperature display and Transmitter
Technology Made Easy ...
68X276107
Rev 0 11/2004
PREFACE
This manual serves to explain the use of the αlpha CON 190 controller/transmitter.
This manual functions in two ways: first, as a step-by-step guide to help you
operate the meter; second, it serves as a handy reference guide.
This manual is written to cover as many anticipated applications of the αlpha CON
190 controller/transmitter as possible. If there are doubts in the use of the αlpha
CON 190 controller/transmitter, do not hesitate to contact the nearest Eutech
Instruments Authorized Distributor.
Eutech Instruments cannot accept any responsibility for damage or malfunction to
the controller/transmitter caused by improper use of the instrument. Remember to
fill in the guarantee card and mail it to your Authorized Distributor or Eutech
Instruments Pte Ltd.
The information presented in this manual is subject to change without notice as
improvements are made, and does not represent a commitment on the part of
Eutech Instruments Pte Ltd.
Copyright© Rev. 0 11/2004
Eutech Instruments Pte Ltd. All rights reserved.
TABLE OF CONTENTS
1
INTRODUCTION
2
SAFETY INFORMATION
2
3
OVERVIEW
3
4
1
3.1
FRONT PANEL
3
3.2
BACK PANEL
4
3.3
WIRING
5
3.4
PANEL-MOUNTING THE CONTROLLER
5
3.5
FERRITE ASSEMBLY
6
MEASUREMENT MODE
7
4.1
MEASUREMENT MODE DISPLAY
7
4.2
SET POINTS ADJUSTMENTS
8
5
PASSWORD
6
CONDUCTIVITY CALIBRATION
11
7
TEMPERATURE CALIBRATION
13
8
SETUP MODE
14
8.1
GENERAL INFORMATION
14
8.2
SETUP MODE OVERVIEW
15
8.3
SET POINT 1 – P1.0
16
8.4
SET POINT 2 – P2.0
18
8.5
MEASUREMENT RANGE SELECTION – P3.0
20
8.6
CONFIGURE TEMPERATURE SETTINGS – P4.0
21
8.7
VIEWING CONDUCTIVITY CALIBRATION DATA – P5.0
22
8.8
VIEWING CONDUCTIVITY/ TEMPERATURE ELECTRODE DATA – P6.0
23
8.9
CONTROLLER RESET – P7.0
24
9
RELAYS
9
25
10 TRANSMITTER FUNCTION
25
11 SPECIFICATIONS
26
12 ACCESSORIES
27
13 GENERAL INFORMATION
30
1 INTRODUCTION
Thank you for purchasing the αlpha CON 190 ⅛ DIN Conductivity Controller.
This controller is part of a series of quality process controllers available from
Eutech Instruments. These sturdy, economical conductivity controllers are
designed with the features and reliability of a much more expensive instrument.
Your controller includes:
•
•
Removable terminal blocks for easy connections;
Two mounting brackets for easy panel mounting;
Some features of this controller are:
Two set point, two SPDT relay operation
Scrolling, 14-segment LED guides user easily through setup functions
Reliable power supply from 85 to 260 V AC, 50/60 Hz or DC withstands
voltage fluctuations
• Push-button operation from the front panel
• Single-point calibration for each individual range
• Adjustable hysteresis band prevents rapid contact switching around set-point
• Selectable automatic or manual temperature compensation
• Two-level password protection
• Removable terminal strips for quick and easy connections
• Built-in non volatile memory retains setup even if power fails, and lets you
configure unit before installation
• Isolated 4-20 mA output for remote monitoring or hard copy recording
•
•
•
1
2 SAFETY INFORMATION
The Eutech Controller/Transmitter shall be installed and operated only in the
manner specified in the Instruction manual. Only skilled, trained or authorized
person should carry out installation, setup and operation of the instrument.
Before powering up the unit, make sure that power source it is connected to, is as
specified in the top label. Failure to do so may result in a permanent damage to the
unit.
The unit has live and exposed parts inside. If it has to be opened, make sure that
the power to the unit is off and disconnected.
The unit is Fuse protected. In the event the fuse has to be replaced, use only those
as specified in the manual.
The degree of protection against electric shock will be achieved only by
observance of the corresponding installation rules.
2
3 OVERVIEW
3.1 Front Panel
The front panel consists of a 4-digit LED display, 8 LED annunciators and 4 keys.
Annunciators
1. REL 1
2. REL 2
3. MEAS
4. CAL
5. SETUP
6. µS
7. oC
8. mS
Keys
Displayed when Relay 1 is activated
Displayed when Relay 2 is activated
Displayed in measurement mode
Displayed in calibration mode
Displayed in setup mode
Unit of the displayed parameter (micro-Siemens / cm)
Unit of the displayed parameter (temperature)
Unit of the displayed parameter (milli-Siemens / cm)
9. MODE
10. CAL / ENTER
11. SP1 / ▲
SP2 / ▼
Use to toggle between Measurement modes
(Conductivity and temperature).
Use to enter Calibration mode.
Use also to enter into levels of the Setup mode
and to confirm changes made.
Use to enter Set Point 1 (SP1) or Set Point 2
(SP2) adjustment mode.
Use as increment or decrement keys during
Calibration and Setup modes.
Use both keys together in Calibration and Setup
modes to escape to Measurement mode.
12.14-segment display
SP1
CAL
ENTER
SP2
MODE
µS
mS
CON 190 Series
3
3.2 Back Panel
The back panel consists of three different connectors that can be used with
removable terminal blocks (included):
PT100
NC
10
9
8
7
6
IN
NC
RELAY2
SENSE
11
- CON
- 4 - 20mA
12
RELAY1
+ CON
GND
+ 4 - 20mA
Caution
NC
19 18 17 16 15 14 13
21 20
5
4
NC
N
L
3
2
1
1. VAC live wire
2. VAC neutral wire
3. unused
4. unused
5. Relay 2 deactivated position (normally closed)
6. Relay 2 center pole
7. Relay 2 activated position (normally open)
8. Relay 1 deactivated position (normally closed)
9. Relay 1 center pole
10. Relay 1 activated position (normally open)
11. 4-20 mA connection, negative
12. 4-20 mA connection, positive
13. Pt 100 connection: sense (jumper to terminal 14 if using 2-wire RTD)
14. Pt 100 connection: input
15. Pt 100 connection: ground
16. Conductivity positive terminal
17. Conductivity negative terminal
18. unused
19. unused
20. VAC protective ground wire
21. VAC protective ground wire
4
3.3 Wiring
Caution: Ensure electrical mains are disconnected before proceeding.
1. Connect the power supply to the three-pin terminal block
VAC live wire = 1
VAC neutral wire = 2
VAC protective ground wire = 20 OR 21
αlpha CON190 controller accepts voltages from 85 to 260 VAC, 50/60 Hz or DC.
•
•
•
2. Connect the Pt 100 leads to terminals 13 to 15 of the seven-pin terminal block.
Either wire can be connected to either terminal. Terminals 13 and 14 must be
shunted unless using a 3-wire RTD.
NOTE: CON 190 is factory set for Automatic temperature compensation. MTC can
be selected in Program P4.0.
3. Power on the controller. The display automatically shows the Conductivity
reading, the µS and ‘MEAS’ annunciators lights.
NOTE: In the event Pt 100 is not connected or the connection is broken in the ATC
mode, the display flashes ‘OR’ to alert you.
3.4 Panel-mounting the controller
The supplied mounting hardware allows surface mounting to all panels and
protective enclosures. Mounting cut-out size is 91 x 45 mm.
To attach the mounting to the controller:
1.
Align the catch to the side of the controller, and insert threaded rods through
catch.
21 20
19 18 17 16 15 14 13
12 11 10 9 8 7 6 5 4
2.
3 2 1
Screw the threaded-rod through the catch in a clock-wise direction. Tighten
until the catch holds the controller firmly against the back of the panel or
protective housing. Repeat on the other side.
5
Wall panel
approx. 154.20
Catch
Catch
Threaded rod
Threaded rod
SIDE VIEW
approx. 100
TOP VIEW
3.5 Ferrite Assembly
The power cable (L, N & E) needs to be connected to the instrument with two turns
through the Split Ferrite which is supplied as an accessory with the instrument. It is
strongly suggested that the Ferrite element supplied as a standard accessory be
installed as described below.
6
4 MEASUREMENT MODE
The αlpha CON 190 controller is capable of taking conductivity measurement with
Automatic (ATC) or Manual (MTC) Temperature Compensation.
The measurements are displayed distinguishingly by the annunciators on the front
panel.
4.1 Measurement mode display
Press the MODE key to toggle between Conductivity and Temperature
measurement mode.
Conductivity Measurement Mode
The controller displays the selected Conductivity range number, R X (X ranges
from 1 to 8), for 2 seconds before displaying the Conductivity measurement. The
µS or mS annunciator will light up depending on which range is selected.
Conductivity Range
0.00 – 20.00 µS/cm
0.0 – 200.0 µS/cm
0.0 – 200.0 µS/cm
0 – 2000 µS/cm
0.00 – 10.00 mS/cm
0.00 – 20.00 mS/cm
0.0 – 200.0 mS/cm
0.0 – 200.0 mS/cm
Range No., R
1
2
3
4
5
6
7
8
Resolution
0.01 µS/cm
0.1 µS/cm
0.1 µS/cm
1 µS/cm
0.01 mS/cm
0.01 mS/cm
0.1 mS/cm
0.1 mS/cm
Cell Constant
0.1
0.1
1
1
1
1
1
10
Temperature Measurement mode
Press MODE key once to view the temperature measurement. The °C annunciator
lights up. The display shows ATC or MTC, then the current measured temperature.
For selection of temperature compensation ATC or MTC, see Setup program P4.1.
NOTE: After pressing the MODE key to display Temperature, if there is no further
key-press, the Controller will automatically revert to Conductivity Measurement
mode after about 30 seconds.
7
4.2 Set Points Adjustments
You can make quick set points adjustments with the direct access of the Set Points
adjustment modes (SP1 and/or SP2). By just pressing the SP1/▲ or SP2/▼key,
you can enter the Set Point adjustment mode and set a new Conductivity value
that will cause your controller to activate.
Set Point 1 (SP1) adjustment mode
This lets you adjust the Conductivity value in Set Point 1. If this value is crossed,
the set point relay 1 LED will light.
1.
2.
3.
Press the SP1/▲ key. The screen will scroll P1.1, SP1, and then the current
set point value.
Press the ▲ or ▼ keys and adjust first relay set point. Default value is 10%
of full scale of range selected.
Press ENTER to confirm and return to the measurement mode.
NOTE: Press ▲ and ▼ keys together (ESCAPE) at anytime, to return to
Measurement mode.
Set Point 2 (SP2) adjustment mode
This lets you adjust the Conductivity value in Set Point 2. If this value is crossed,
the set point relay 2 LED will light.
4.
5.
6.
Press the SP2/▲ key. The screen will scroll P2.1, SP2, and then the current
set point value.
Press the ▲ or ▼ keys and adjust first relay set point. Default value is 90%
of full scale of range selected.
Press ENTER to confirm and return to the measurement mode.
NOTE: Press ▲ and ▼ keys together (ESCAPE) at anytime, to return to
Measurement mode.
NOTE: These modes are only for adjusting relay 1 and/or relay 2 set points values.
To set the relays as low or high set points or to set its hysteresis values, you have
to make the adjustments from the Setup mode as in Section 8.3 and Section 8.4.
8
5 PASSWORD
The Setup mode is to be accessed by entering a password code. The direct
accessed Set Point adjustment mode (SP1 and SP2) and the Calibration mode
can also be accessed through this password code procedure.
The alpha CON 190 controller features two separate passwords:
• Conductivity and Temperature calibration mode password = 011
• Setup program password = 022
To enter the password:
1.
Press the MODE key, and within 1 second, press the CAL/ENTER key. The
display reads P.WRD.
2.
Press ENTER again. The display reads “P.000”. The first “0” flashes.
3.
Press ENTER again to leave the first digit “0” and to scroll to the next
number.
4.
Press the ▲or ▼keys to change the second digit to the desired password
number (1 or 2). Press ENTER.
5.
Press the ▲or ▼keys to change the second digit to the correct password
number (1 or 2). Press ENTER. The display flashes the password that has
been entered.
NOTE: If you enter an incorrect digit, press MODE to step backward.
6.
Press ENTER again. You are now in Calibration mode or Setup mode,
depending on password entered.
NOTE: In the Password Entry mode, if there is no key-press for more than 30
seconds, Controller will automatically revert to measurement
9
P.
P.000
P.000
P.010
P.020
P.011
P.022
P.011
P.022
10
6 CONDUCTIVITY CALIBRATION
IMPORTANT: When Calibration mode is entered, controller automatically goes into
a “HOLD” mode where the 4-20 mA output freezes and relays are de-activated (if it
was in an activated condition). Upon return to measurement mode, both 4-20mA
output and relay activities resume, depending on settings.
The αlpha CON 190 controller includes 8 conductivity measurement ranges. Onepoint slope calibration is possible, in each range.
Choose fresh standard solutions, whose value is reasonably close to the
measurement value.
Before calibration, make sure electrode is clean. Use iso-propyl alcohol followed by
thorough rinsing in distilled water to clean electrode.
Important: To achieve a successful conductivity calibration, two conditions must
be satisfied:
1.
Difference between measured value of standard solution, and actual
value of standard solution, must be within ± 40 %.
(e.g. if value of standard solution is 1413 uS/cm, then allowable
measured values by controller must be within 1978.2 uS/cm {+ 40%}
and 847.8 uS/cm {- 40%}; and
2.
the lowest possible value must be at least 10% of full scale
(e.g. if range of 0 to 200.0 uS/cm selected, min. measured value at
calibration, must be at least 20.0 uS/cm).
If any or both conditions are not satisfied, controller will display ERR 1 (blinking).
1.
Press CAL / ENTER key to directly access the Calibration mode when the
unit is in conductivity measurement mode. Controller displays the value of
the standard solution.
NOTE: Instead of pressing the CAL/ENTER key, you can also enter the Calibration
mode using the password code procedure as explained in Section 5.
2.
3.
4.
Use electrode to agitate standard solution to obtain a homogeneous solution
and to dislodge any bubbles. Allow electrode time to stabilize with solution
temperature.
Use ▲/ ▼keys to adjust displayed readings to the value of the standard
solution. Press ENTER.
If any of the two conditions mentioned above is not satisfied, controller will
display ERR1, blinking.
11
5.
If calibration is successful, Controller displays DONE, blinking. Press
ENTER to revert to Conductivity measurement mode (Relays and 4-20 mA
output resume previous settings).
NOTE: To clear the ERR1 display and return to calibration mode, press ▲/ ▼
keys together.
509
500
ENTER
done
ENTER
Notes:
You can view the calibrated Conductivity value from Setup program. See Setup
program P5.0.
Controller displays calibrated conductivity point for selected range.
If calibration is not done for the selected range, controller displays ‘- - - -‘.
If after thorough cleaning of electrode and ERR1 is displayed after an attempted
calibration, consider changing electrode.
12
7 TEMPERATURE CALIBRATION
IMPORTANT: When Calibration mode is entered, controller automatically goes into
a “HOLD” mode where the 4-20 mA output freezes and relays are de-activated (if it
was in an activated condition). Upon return to measurement mode, both 4-20mA
output and relay activities resume, depending on settings.
This controller features selectable Automatic Temperature Compensation (ATC) or
Manual Temperature Compensation (MTC).
ATC: ATC mode requires a Pt 100 temperature element. ATC automatically
compensates for temperature fluctuations. ATC temperature readings can be offset
by ±10 oC.
Important: If there is no temperature element wired to controller and ATC is
selected on, screen will flash in conductivity mode, and an error message (OR) is
displayed in temperature mode.
MTC: MTC lets you select a specific value at which temperature will be
compensated. You can select a manual temperature value from 0 to 50oC. Factory
default is 25.0oC.
See Setup program P4.0 for instructions on ATC or MTC selection.
To offset temperature:
1.
Press MODE to select oC mode. Display shows MTC or ATC, then
temperature.
2.
Press CAL / ENTER key to directly access the offset mode when the unit is
in temperature measurement mode.
NOTE: Instead of pressing the CAL/ENTER key, you can also enter the offset
mode using the password code procedure as explained in Section 5.
3.
4.
5.
The screen will flash current oC reading.
For ATC: Determine temperature of solution with an
accurate meter (such as the Temp 5). Press ▲or
▼keys to offset oC value on controller display to
match value of the solution you are measuring.
For MTC: Press ▲or ▼keys to offset oC value on
controller display to match desired value.
Press ENTER. The display flashes “DONE” for
about 3 seconds and returns to measurement
mode.
22.5
25.0
ENTER
done
13
8 SETUP MODE
8.1 General Information
IMPORTANT: When Setup mode is entered, controller automatically goes into a
“HOLD” mode where the 4-20 mA output freezes and relays are de-activated (if it
was in an activated condition). Upon return to measurement mode, both 4-20mA
output and relay activities resume, depending on settings.
To enter setup mode:
1.
Key in password “022” using method described in section 5.
2.
Press ▲or ▼keys to display various sub-menus shown here.
3.
When a sub-menu item is displayed, press ENTER key to enter that submenu.
4.
Press ▲and ▼keys together (ESCAPE) to leave Setup mode and return to
Measurement mode (Relays and 4-20 mA output resume previous settings).
P1.0
14
P2.0
P7.0
P3.0
P6.0
P4.0
P5.0
8.2 Setup mode overview
P1.0: Set Point 1
P1.1: select relay 1 set point value
P1.2: select relay 1 as low or high set point
P1.3: set relay 1 hysteresis value
P2.0: Set Point 2
P2.1: select relay 2 set point value
P2.2: select relay 2 as low or high set point
P2.3: set relay 2 hysteresis value
P3.0: Range
P3.1: select measurement range (with the corresponding cell constant value).
Eight measurement ranges are available.
P4.0: Temperature Data
P4.1: select ATC or MTC
P4.2: select temperature coefficient value
P4.3: select normalization temperature
P5.0: Conductivity Calibration points
P5.1: view conductivity value at which calibration was performed
P6.0 Electrode Properties
P6.1: view cell constant value after calibration
P6.2: view temperature offset value after calibration (only if in ATC mode)
P7.0 Reset to Factory Defaults
P7.1: select YES/NO to confirm reset decision
15
8.3 Set Point 1 – P1.0
Setup program P1.0 allows you to set parameters for relay 1.
P1.1: select relay 1 set point value
P1.2: select relay 1 as low or high set point
P1.3: set relay 1 hysteresis value (dead band)
P1.0
SP 1
P1.1
SP 1
200
P1.2
P1.3
SP 1
HYSt
LOW
100
HIGH
Press ▲and ▼keys together (ESCAPE) at anytime, to leave Setup mode and
return to Measurement mode.
P1.1: Select relay set point value
Set the Conductivity value that will activate Relay 1. If measured value overshoots
or undershoots Set Point value, Relay 1 will be activated and corresponding LED
on front panel will light.
1.
2.
3.
4.
5.
Key in password “022” as per procedure in Section 5.
Screen will scroll P1.0 and SP1. Press ENTER.
Screen will scroll P1.1, SP1, then current set point value.
Press ▲or ▼keys and adjust first relay set point. Default value is 10% of
full scale of range selected.
Press ENTER to confirm and continue to step three of P1.2, or press ▲and
▼keys together to return to P1.0. Press ▲and ▼keys together again, to
return to the Conductivity measurement mode.
P1.2: Set relay as high or low set point
Select low set point to activate Relay when measured value undershoots Set point;
select high set point to activate Relay when measured value overshoots Set point.
Using both SP1 and SP2, you can select lo/lo, lo/hi, hi/lo or hi/hi set points.
1.
Key in password “022” as per procedure in Section 5.
2.
The screen will scroll P1.0 and SP1. Press ENTER twice.
3.
The screen will scroll P1.2, SP1, and LOW (or HIGH).
4.
Use ▲or ▼keys to toggle between LOW and HIGH.
5.
Press ENTER to confirm and continue to step 3 of P1.3, or press ▲and
▼keys together to return to P1.0. Press ▲and ▼keys together again, to
return to Conductivity measurement mode.
16
P1.3: Set Hysteresis value
Hysteresis prevents rapid contact switching if measured value is fluctuating near
the set point. Once activated, relay will not de-activate until measured value
reaches set point plus hysteresis value.
Example: Low set point is 200.0 µS/cm and hysteresis 100.0 µS/cm, relay will
activate when value drops below 200.0 µS/cm, but will not de-activate till
measured Conductivity value rises above 300.0 µS/cm.
Default hysteresis value is 5% of full scale. The hysteresis window can be set to
any value within the range shown below:
Conductivity Range
0.00 – 20.00 µS/cm
0.0 – 200.0 µS/cm
0.0 – 200.0 µS/cm
0 – 2000 µS/cm
0.00 – 10.00 mS/cm
0.00 – 20.00 mS/cm
0.0 – 200.0 mS/cm
0.0 – 200.0 mS/cm
1.
2.
3.
4.
5.
Range No., R
1
2
3
4
5
6
7
8
Hysteresis Window
0.00 – 2.00 µS/cm
0.0 – 20.0 µS/cm
0.0 – 20.0 µS/cm
0 – 200 µS/cm
0.00 – 1.00 mS/cm
0.00 – 2.00 mS/cm
0.0 – 20.0 mS/cm
0.0 – 20.0 mS/cm
Key in password “022” as per procedure in Section 5.
The screen will scroll P1.0 and SP1. Press ENTER three times.
The screen will scroll P1.3, HYS1, and current hysteresis value.
Press ▲or ▼keys to adjust hysteresis value.
Press ENTER to confirm. Press ▲and ▼keys together to return to P1.0.
Press ▲and ▼keys together again, to return to Conductivity measurement
mode.
17
8.4 Set Point 2 – P2.0
Setup program P2.0 allows you to set parameters for relay 2.
P2.1: select relay 2 set point value
P2.2: select relay 2 as low or high set point
P2.3: set relay 2 hysteresis value (dead band)
P2.0
SP 2
P2.1
SP 2
1800
P2.2
P2.3
SP 2
HYSt
LOW
100
HIGH
Press ▲and ▼keys together (ESCAPE) at anytime, to leave Setup mode and
return to Measurement mode.
P2.1: Select relay set point value
Set the Conductivity value that will activate Relay 2. If measured value overshoots
or undershoots Set Point value, Relay 2 will be activated and corresponding LED
on front panel will light.
1.
Key in password “022” as per procedure in Section 5.
2.
Press ▲key until screen displays P2.0 and SP2. Press ENTER.
3.
The screen will scroll P2.1, SP2, then current set point value.
4.
Press ▲or ▼keys and adjust second relay set point. Default value is 90%
of full scale of range selected.
5.
Press ENTER to confirm and continue to step three of P2.2, or press ▲and
▼keys together to return to P2.0. Press ▲and ▼keys together to return to
Conductivity measurement mode.
P2.2: Set relay as high or low set point
Select low set point to activate Relay when measured value undershoots Set point;
select high set point to activate Relay when measured value overshoots Set point.
Using both SP1 and SP2, you can select lo/lo, lo/hi, hi/lo or hi/hi set points.
1.
Key in password “022” as per procedure in Section 5.
2.
Press ▲key until screen displays P2.0 and SP2. Press ENTER twice.
3.
The screen will scroll P2.2, SP2, and LOW (or HIGH).
4.
Press the ▲or ▼keys to toggle between LOW and HIGH.
5.
Press ENTER to confirm and continue to step 3 of P2.3, or press ▲and
▼keys together to return to P2.0. Press ▲and ▼keys together to return to
Conductivity measurement mode.
18
P2.3: Set Hysteresis value
Hysteresis prevents rapid contact switching if measured value is fluctuating near
the set point. Once activated, relay will not de-activate until measured value
reaches set point plus hysteresis value.
Example: High set point is 1800.0 µS/cm and hysteresis 100.0 µS/cm, relay will
activate when value rises above 1800.0 µS/cm, but will not de-activate till
measured Conductivity value drops below 1700.0 µS/cm.
Default hysteresis value is 5% of full scale. The hysteresis window can be set to
any value within the range shown below:
Conductivity Range
0.00 – 20.00 µS/cm
0.0 – 200.0 µS/cm
0.0 – 200.0 µS/cm
0 – 2000 µS/cm
0.00 – 10.00 mS/cm
0.00 – 20.00 mS/cm
0.0 – 200.0 mS/cm
0.0 – 200.0 mS/cm
1.
2.
3.
4.
5.
Range No., R
1
2
3
4
5
6
7
8
Hysteresis Window
0.00 – 2.00 µS/cm
0.0 – 20.0 µS/cm
0.0 – 20.0 µS/cm
0 – 200 µS/cm
0.00 – 1.00 mS/cm
0.00 – 2.00 mS/cm
0.0 – 20.0 mS/cm
0.0 – 20.0 mS/cm
Key in password “022” as per procedure in Section 5.
The screen will scroll P2.0 and SP2. Press ENTER three times.
The screen will scroll P2.3, HYS2, and current hysteresis value.
Press ▲or ▼keys to adjust hysteresis value.
Press ENTER to confirm. Press ▲and ▼keys together to return to P2.0.
Press ▲and ▼keys together to return to Conductivity measurement mode.
19
8.5 Measurement Range Selection – P3.0
Setup program P3.0 is for selecting the range of measurement.
P3.1: select measurement range and corresponding cell constant
P3.0
RNGE
P3.1
2000
K 10
.
Press ▲and ▼keys together (ESCAPE) at anytime, to leave the Setup mode and
return to Measurement mode.
P3.1: Select Measurement Range
Set controller to the specific range of measurement. Ensure the cell you have
connected to the controller has the same cell constant as that stated in the range.
1.
2.
3.
4.
Key in the password “022” as per procedure in Section 5.
Press ▲key until screen displays P3.0 and RNGE. Press ENTER.
The screen will scroll P3.1 and the selected range.
Press ▲or ▼keys to select appropriate range and cell.
Available ranges are as follows (Default range is highlighted):
Conductivity Range
0.00 – 20.00 µS/cm
0.0 – 200.0 µS/cm
0.0 – 200.0 µS/cm
5.
6.
20
Cell Constant
0.1
0.1
1
0 – 2000 µS/cm
1
0.00 – 10.00 mS/cm
0.00 – 20.00 mS/cm
0.0 – 200.0 mS/cm
0.0 – 200.0 mS/cm
1
1
1
10
4 mA current
0.00 µS/cm
0.0 µS/cm
0.0 µS/cm
20 mA current
20.00 µS/cm
200.0 µS/cm
200.0 µS/cm
0 µS/cm
0.00 mS/cm
0.00 mS/cm
0.0 mS/cm
0.0 mS/cm
2000 µS/cm
10.0 mS/cm
20.0 mS/cm
200.0 mS/cm
200.0 mS/cm
Press ENTER to confirm (The set points 1 & 2, Conductivity and
Temperature calibration are reset to default values).
Press ▲and ▼keys together (ESCAPE) to return to P3.0. Press the ▲and
▼keys together again, to return to measurement mode.
8.6 Configure Temperature Settings – P4.0
Setup program P4.0 is for selecting ATC or MTC, set temperature coefficient
values, and select normalization temperature
P4.1: ATC or MTC mode (default : ATC mode)
P4.2: set temperature coefficient (default : 2.10 %)
P4.3: set Normalization temperature (default : 25.0 oC)
P4.0
TEMP
P4.1
MODE
ATC
MTC
P4.2
COEF
2.0
P4.3
NORM
25.0
P4.1: Selecting ATC or MTC
1.
Key in the password “022” as per procedure in Section 5.
2.
Press ▲key until screen displays P4.0 and TEMP. Press ENTER.
3.
Screen will scroll P4.1, MODE, then either ATC or MTC.
4.
Press the ▲or ▼keys to select either ATC or MTC. Press ENTER.
5.
Proceed to P4.2 or press the ▲and ▼keys together to return to P4.0. Press
the ▲and ▼keys together again, to return to Conductivity measurement
mode.
P4.2: Setting Temperature Coefficient
1.
Key in the password “022” as per procedure in Section 5.
2.
Press ▲key until screen displays P4.0 and TEMP. Press ENTER until
screen shows P4.2.
3.
Screen will scroll P4.2, COEF., then 2.1 (to indicate 2.1%).
4.
Press the ▲or ▼keys to change the temperature coefficient value
(adjustable range: 0.0% to 5.0 %.). Press ENTER to confirm.
5.
Proceed to P4.3 or press the ▲and ▼keys together to return to P4.0. Press
the ▲and ▼keys together again, to return to Conductivity measurement
mode.
P4.3: Setting Normalization Temperature
1.
Key in the password “022” as per procedure in Section 5.
2.
Press ▲key until screen displays P4.0 and TEMP. Press ENTER until
screen shows P4.3.
3.
Screen will scroll P4.3, then NORM, then 25.0.
4.
Press ▲or ▼keys to change the normalization temperature value
(adjustable range: 10.0°C to 30.0°C). Press ENTER to confirm.
5.
Press ▲and ▼keys together (ESCAPE) twice, to return to measurement
mode.
21
8.7 Viewing Conductivity Calibration Data – P5.0
Program 5 is a “view only” option, which displays the value at which calibration was
performed.
P5.1: view Calibrated conductivity value (if no calibration performed for this range,
controller displays ‘- - - - ‘).
These parameters will change each time you recalibrate the controller.
P5.0
CL
P5.1
CAL
300
Press ▲and ▼keys together (ESCAPE) at anytime, to leave the Setup mode and
return to Measurement mode.
P5.0: Viewing Calibrated Conductivity data
1.
Key in the password “022” as per procedure in Section 5.
2.
Press ▲key until screen displays P5.0 and CAL. Press ENTER.
3.
Screen will scroll P5.1, ‘CAL’, then Calibrated value (in uS/cm or mS /cm).
4.
Press ▲and ▼keys together (ESCAPE) twice, to return to measurement
mode.
22
8.8 Viewing Conductivity/ Temperature Electrode Data – P6.0
Program 6 has two “view only” options that let you check the electrode parameters
for diagnostic purposes.
P6.1: view revised cell constant value of electrode
P6.2: view temperature probe offset (ATC on only)
These parameters will change each time you recalibrate the controller.
P6.0
elec
P6.1
FCTR
1.000
P6.2
t.ofs
0.0
Press ▲and ▼keys together (ESCAPE) at anytime, to leave the Setup mode and
return to Measurement mode.
P6.1: Viewing Conductivity electrode data
1.
Key in the password “022” as per procedure in Section 5.
2.
Press ▲key until screen displays P6.0 and ELEC. Press ENTER.
3.
Screen will scroll P6.1, ‘FCTR’ then cell constant factor. Each time a
calibration is performed, the value of the cell constant factor will be updated.
4.
Press ▲and ▼keys together (ESCAPE) to return to P6.0 or press ENTER
to view Temperature electrode data.
P6.2: Viewing Temperature electrode data
5.
Follow procedure from above (P6.1) until step 3 and press ENTER.
6.
Screen will scroll P6.2, ‘T.OFS’ (Temperature Offset), then amount of offset
(in oC).
7.
Press ENTER or press ▲and ▼keys together (ESCAPE) twice, to return to
measurement mode.
23
8.9 Controller Reset – P7.0
Program 7 gives an option to reset the controller to factory default values.
•
Conductivity range remains unchanged based on last selected range
•
All calibration data and conductivity calibration factor are reset
•
SP 1 is reset to 10 % of full scale
•
SP 2 is reset to 90 % of full scale
•
Hysteresis for both set points is reset to 5 % of full scale
•
Temperature compensation mode remains unchanged (ATC or MTC)
•
In MTC mode, temperature value is reset to 25 oC
•
Temperature Coefficient is reset to 2.1%
•
Normalization Temperature is reset to 25.0 oC
NOTE: ATC temperature offset is NOT reset.
P7.0
RsT
P7.1
yeS
n0
Press ▲and ▼keys together (ESCAPE) at anytime, to leave the Setup mode and
return to Measurement mode.
P7.0: Controller reset
1.
Key in the password “022” as per procedure in Section 5.
2.
Press ▲key until screen displays P7.0 and RST. Press ENTER.
3.
Screen will scroll P7.1, then ‘No’.
4.
Press ▲or ▼keys to toggle between YES and NO. Press ENTER to
confirm selection.
5.
Press ▲and ▼keys together (ESCAPE) to return to P7.0. Press ▲and
▼keys together again, to return to measurement mode.
24
9 RELAYS
The αlpha CON 190 features two SPDT non-powered relays; rated for 6A at 110
VAC, 250 VAC maximum. When your process exceeds the set parameters of a
relay set point, the REL 1 or REL 2 indicator will light up.
To set parameters for relay 1 and relay 2, see Setup programs P1.0 and P2.0.
10 TRANSMITTER FUNCTION
If remote data logging is required, a 4-20 mA current loop can be connected. The
current will be proportional to the Conductivity value displayed on the panel and
according to the measurement range selected.
Conductivity Range
0.00 – 20.00 µS/cm
0.0 – 200.0 µS/cm
0.0 – 200.0 µS/cm
0 – 2000 µS/cm
0.00 – 10.00 mS/cm
0.00 – 20.00 mS/cm
0.0 – 200.0 mS/cm
0.0 – 200.0 mS/cm
Range No., R
1
2
3
4
5
6
7
8
Cell Constant
0.1
0.1
1
1
1
1
1
10
4 mA current
0.00 µS/cm
0.0 µS/cm
0.0 µS/cm
0 µS/cm
0.00 mS/cm
0.00 mS/cm
0.0 mS/cm
0.0 mS/cm
20 mA current
20.00 µS/cm
200.0 µS/cm
200.0 µS/cm
2000 µS/cm
10.0 mS/cm
20.0 mS/cm
200.0 mS/cm
200.0 mS/cm
The 4-20 mA current loop can drive a load resistance of no more than 200 Ω.
25
11 SPECIFICATIONS
Conductivity Range
0.00 – 20.00 µS/cm
0.0 – 200.0 µS/cm
0.0 – 200.0 µS/cm
0 – 2000 µS/cm
0.00 – 10.00 mS/cm
0.00 – 20.00 mS/cm
0.0 – 200.0 mS/cm
0.0 – 200.0 mS/cm
Relative Accuracy
Temperature
Resolution/Accuracy
Sensor
Temperature Compensation
Temperature Coefficient
Normalization Temperature
Set-point And Controller Functions
Function
Switching Conductivity Hysteresis
Contact Outputs, Controller
Switching Voltage / Current / Power
Signal Output / Load
Electrical Data And Connections
Power Requirements
Rated Input Current (MAX)
Insulation Category
Connection Terminals
Main Fuse
Resolution
Cell Constant
0.01 µS/cm
0.1
0.1 µS/cm
0.1
0.1 µS/cm
1
1 µS/cm
1
0.01 mS/cm
1
0.01 mS/cm
1
0.1 mS/cm
1
0.1 mS/cm
10
± 1 % of full scale
-10 to 110 oC
0.1 / ± 0.5 oC
Pt 100 (3-wire)
Automatic / Manual (0 to 50 °C)
0.0 to 5.0 %
10.0°C to 30.0°C
Limit Control
0 to 10% of full scale
2 SPDT relays
Max 250 VAC / Max 3A / Max 600 VA
4-20 mA galvanically isolated / 200 Ω
85 to 260 VAC, 50/60 Hz or DC
100 mA
II
3 Detachable connectors
(3-pin; 7-pin & 9-pin terminal blocks) +
1 FIXED CONNECTOR
250 mA, Anti-surge (BUSSMAN S504+250mA)
Environmental Conditions
Ambient Temp. Operating Range
- 10 to 50 oC (14 to 122 oF)
Rel. Humidity
10 to 95 % (non-condensing)
Mechanical Specifications
Dimensions (Panel Housing – W x H x D)
96 x 48 x 150 mm
Weight
300g (350g boxed)
26
12 ACCESSORIES
Product Description
Conductivity cell, Epoxy body, Graphite sensor, w/3-wire
Pt100, k = 0.1
Conductivity cell, Epoxy body, Graphite sensor, w/3-wire
Pt100, k = 1.0
Code no.
ECCONSEN89X
ECCONSEN88X
Conductivity 2 Cell type probe, 0.1 - 200µS; Cell constant,
K=0.1 with integrated Pt 100, Material SS316 and 25ft cable
(open-ended)
EC-CS10-0-1S
Conductivity 2 Cell type probe, up to 200 mS; Cell constant,
K=1.0 with integrated Pt 100, Material SS316 and 25ft cable
(open-ended)
EC-CS10-1-0S
Note:
Please contact your authorised distributor or dealer for the prices of
extension measuring cables and other accessories like tee joints,
electrode assembly, and calibration solutions.
27
Appendix 1: Simple Explanation on the Function of Hysteresis
SP1 Set to LO
SP2 Set to HI
RELAY ON
RELAY OFF
200
300
1700 1800 uS
SP1
The controller relay activates when the setpoint is reached. In the reverse direction, it
does not de-activate when the value
reaches the set-point. Instead, it continues
to be active till the value reaches the
amount set by the Hysteresis band.
SP2
FORWARD DIRECTION
REVERSE DIRECTION
HYSTERESIS BAND
Appendix 2: Factory Defaults
Resetting the controller to factory default settings (See program P7.0) clears
all calibration data and most other setup functions.
The following settings will remain unchanged:
1.
Measurement range
2.
Temperature compensation mode (ATC or MTC)
3.
Temperature offset calibration value, if in ATC mode.
Conductivity Defaults
Conductivity range
Set point 1
Set point 2
Temperature Defaults
Temp. Compensation mode
MTC mode
ATC mode
Temperature Coefficient
Normalization Temperature
28
Remains unchanged at last selected range
10% full scale / Hyst. 5% full scale / Low
90% full scale / Hyst. 5% full scale / High
remains unchanged
reset to 25oC if in MTC mode
remains at last calibration if in ATC mode
2.1 %
25.0 oC
Appendix 3: External Relays
The relays on the αlpha CON 190 series controller are rated for 6 amps at 110
VAC and can be wired directly to your final control element (provided its power
requirements does not exceed this). However, to preserve the life of your
controller, or if higher power is needed, it is recommended that you use the
controller relay to drive an external relay.
Diagram below shows a typical installation. Wiring should be changed
appropriately if normally closed (N.C.) operation is desired.
21 20
19 18 17 16 15 14 13
12 11 10 9 8 7 6 5 4
3 2 1
29
13 GENERAL INFORMATION
Warranty
Eutech Instruments warrants this product to be free from significant deviations
in material and workmanship for a period of one year from the date of
purchase. If repair is necessary and has not been the result of abuse or
misuse within the warranty period, please return by freight pre-paid and
amendment will be made without any charge. Eutech Instruments’ Customer
Service Dept. will determine if product problem is due to deviations or
customer abuse. Out of warranty products will be repaired on a charge basis.
Return of Goods
Authorisation must be obtained from Eutech Instruments’ Customer Service
Dept. to issue a RGA (Return of Goods Authorisation) number before
returning items for any reason. When applying for authorisation, please
include data requiring the reason of return. Items must be carefully packed to
prevent damage in shipment and insured against possible damage or loss.
Eutech Instruments will not be responsible for any damage resulting from
careless or insufficient packing.
Warning: Shipping damage as a result of inadequate packaging is the
user/distributor’s responsibility, whoever applicable. Please follow the
guidelines below before shipment.
Guidelines for Returning Unit for Repair
Use the original packaging material, if possible when shipping the unit for repair.
Otherwise wrap it with bubble pack and use a corrugated box for better protection.
Include a brief description of any faults suspected for the convenience of Customer
Service Dept., if possible.
30
For more information on Eutech Instruments products, contact your nearest Eutech
Instruments distributor or visit our website listed below:
Manufactured by:
Eutech Instruments Pte Ltd.
Blk 55, Ayer Rajah Crescent,
#04-16/24 Singapore 139949
Tel: (65) 6778 6876
Fax: (65) 6773 0863
E-mail: marketing@eutechinst.com
Web-site: http://www.eutechinst.com
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