Oakton 1000 1/4 DIN pH/ORP controller Operating instructions
Below you will find brief information for pH/ORP controller 1000 1/4 DIN. This is a microprocessor-based pH/ORP controller that can be used to measure either pH or ORP with proportional or on/off control. You can use the controller in panel mounted enclosures. This controller has many user-friendly features, including a menu-driven program that simplifies set-up, a large dual display LCD shows pH (ORP) and temperature along with clear multiple annunciators, two set point, two SPDT relay operation, three control modes, 0 to 2000 second time delay adjustment on all relays, a separate alarm relay alerts you to set points exceeded for a specific length of time or a failed temperature sensor, separately adjustable high and low set point hysteresis bands, 0-20/4-20 mA transmitter/recorder output, protection against electromagnetic interference, push button two-point calibration and electrode offset adjustment, easy, fast calibration with auto buffer recognition, nonvolatile memory maintains setup even when power fails, two level password protection, and LED indicators signal control activities to monitor controller status from a distance.
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NOTES
List the name and information of your OAKTON distributor in the space below.
XXXXX-XX
OPERATING INSTRUCTIONS
OAKTON 1000 series
1
⁄
4
DIN pH/ORP
Controller
pH Controller
1000 Series
CAL
ENTER
MEAS
REL A
REL B
AUTO
MANU pH
°
C
ATC
REL A
REL A
ALARM
REL B
ESC
R1 Printed in the U.S.A. 3/99
Table of Contents
1. Introduction
..............................................................................................................4-5
2. Assembly and Installation
..............................................................................6-10
2.1 Typical measurement and control system
..............................................................6
2.2 Unit dimensions
..........................................................................................................7
2.3 Back panel
....................................................................................................................8
2.4 Electrical connections
................................................................................................9
2.5 Electrode/temperature sensor connections
..........................................................10
2.6 HOLD function
..........................................................................................................11
3. Overview: keypad and display
..................................................................12-14
3.1 Keypad
........................................................................................................................12
3.2 Display
........................................................................................................................13
3.3 LED indicators
..........................................................................................................14
4. Starting up
............................................................................................................15-18
4.1 Security codes
............................................................................................................15
4.2 Viewing operating parameters
..............................................................................16
4.3 Entering pH (ORP) calibration mode
..................................................................17
4.4 Entering Advanced set up mode
............................................................................18
5. Calibration
............................................................................................................19-22
5.1 pH calibration
......................................................................................................19-20
5.2 ORP calibration
........................................................................................................21
5.2.1 ORP mV calibration ..........................................................................................21
5.2.2 ORP % calibration ............................................................................................22
6. Advanced Set up mode
..................................................................................23-57
6.1 Advanced set up mode overview
........................................................................24-25
6.2 OFS: Offset sub group
........................................................................................26-27
6.2.1 Calculating the pH electrode offset value ....................................................27
6.2.2 Entering the pH electrode offset value ........................................................27
6.3 SET °C: Temperature settings
............................................................................28-32
6.3.1 Selecting automatic or manual temperature compensation ......................29
6.3.2 Temperature sensor calibration (ATC mode only) ......................................30
6.3.3 Manual temperature compensation ..............................................................31
6.3.4 Setting process temperature ............................................................................31
6.3.5 Setting calibration temperature ......................................................................32
6.4 SP1 (SP2): Set up for Relay 1 and Relay 2 subgroup
....................................33-38
6.4.1 Selecting relay set point values ......................................................................34
6.4.2 Selecting relay as high or low set point ........................................................35
6.4.3 Selecting a hysteresis (dead band) value ......................................................36
6.4.4 Setting an on-delay time lag............................................................................37
6.4.5 Setting an off-delay time lag ..........................................................................38
6.5 Cntr: Control type subgroup
............................................................................39-43
6.5.1 Selecting control type ......................................................................................40
6.5.2 Selecting break/make contact relay type ......................................................41
6.5.3 Selecting proportional band ............................................................................42
6.5.4 Selecting period duration/maximum frequency ........................................43
6.6 rng: Current output sub group
..........................................................................44-47
6.6.1 Choosing output range (4-20 or 0-20 mA) ....................................................45
6.6.2 Selecting pH (ORP) value at 0 (4) mA ..........................................................46
6.6.3 Selecting pH (ORP) value at 20 mA ..............................................................47
6.7 CONF: Configuration subgroup
......................................................................48-53
6.7.1 Selecting measurement units (pH, ORP mV, ORP %) ................................49
6.7.2 Selecting the alarm time lag ............................................................................50
6.7.3 Selecting steady or pulse contact for the alarm relay..................................51
6.7.4 Selecting pH sensor type ................................................................................52
6.7.5 Reverting to factory default settings..............................................................53
6.8 CAL: Calibration subgroup
..............................................................................54-57
6.8.1 pH calibration ..............................................................................................54-55
6.8.2 ORP calibration ............................................................................................56-57
7. Alarm relay
................................................................................................................58
8. Taking measurements
..........................................................................................59
9. Manual control mode
..........................................................................................60
10. Specifications
..........................................................................................................61
11. Accessories
..........................................................................................................62-63
12. Appendix 1: Factory default settings
......................................................64
13. Appendix 2: Symmetrical mode
................................................................65
14. Appendix 3: Jumper positions
......................................................................66
15. Warranty
..................................................................................................................67
16. Return of items
....................................................................................................67
17. Index
......................................................................................................................68-69
1. Introduction
Thank you for purchasing a microprocessor-based OAKTON 1000-series
1
⁄
4
DIN pH/ORP controller. You can use this unit to measure either pH or ORP with proportional or on/off control. This controller has many user-friendly features; some of its features include:
• A menu-driven program that simplifies set-up
• Large dual display LCD shows pH
(ORP) and temperature along with clear multiple annunciators
• Two set point, two SPDT relay
operation
for lo/lo, lo/hi, hi/lo or hi/hi control
• Three control modes: on/off, proportional pulse length or proportional pulse frequency
• 0 to 2000 second time delay
adjustment
on all relays— minimizes false alarms
• Separate alarm relay alerts you to set points exceeded for a specific length of time or a failed temperature sensor
• Separately adjustable high and low
set point hysteresis bands
prevent rapid contact switching if your pH
(ORP) value is fluctuating near the set point
• 0-20/4-20 mA transmitter/recorder
output
for remote monitoring and hard copy recording
• Protection against electromagnetic interference—galvanically isolated
output
• Push button two-point calibration and electrode offset adjustment from the keypad
• Easy, fast calibration with auto
buffer recognition
• Two level password protection— first level allows quick access to calibration; second level lets you change set up parameters
• LED indicators signal control activities to monitor controller status from a distance
• Nonvolatile memory maintains setup even when power fails
Use the OAKTON 1000-series controller in panel mounted enclosures for applications such as:
• water treatment and monitoring
• chemical processing
• food processing
• waste water control.
pH Controller
1000 Series
CAL
ENTER
MEAS
REL A
REL B
AUTO
MANU
REL B pH
°
C
ATC
ALARM
ESC
Included with your controller
Your controller includes:
• 17-way and 5-way right angled terminal block (one each)
• side threaded rod with catch (two)
• receptacle cable lug (one)
• rubber gasket (one)
About the manual
Please read the first five sections carefully. Section 6 is designed so you can either read the whole section linearly, or skip to the sections that are pertinent to your application. You may want to read through these sections in entirety to familiarize yourself with all of the controller’s features.
If you have any questions about this controller, please contact your OAKTON distributor.
Please read through this manual carefully before installing and operating your controller.
2. Assembly and Installation
2.1
Typical Measurement and Control System
A typical measurement system consists of:
• power source
• the OAKTON 1000-series controller
• a pH (or ORP) combination electrode with integrated or separate temperature sensor (Pt 100 or 1000)
• installation hardware for electrode
• an appropriate pH or ORP measurement cable
• a final control element such as a pump or valve
• a recorder (optional)
• a visual and/or audible alarm
(optional)
110/220
VAC
6 A max
pH Controller
1000 Series
CAL
ENTER
MEAS pH
°
C
ATC
REL A
REL B
AUTO
MANU REL B
ALARM
ESC
4-20 mA or 0-20 mA input signal chart recorder
Alarm or
Indicator pH electrode installation hardware for electrode
(i.e tee fitting)
Pump/Valve/Other Pump/Valve/Other
2.2
Unit dimensions
The field-tested control panel housing is 3.78" x 3.78" (96 x 96 mm).
The front panel meets protection class IP 54.
Flat Gasket: 1 mm thick
(Installed by customertapered corners on top)
Side View
(with mounting brackets)
,
Panel Thickness: 45 mm maximum
96 mm
9 mm maximum
,
9 mm thick
175 mm maximum
160 mm
Mounting Bracket (2 included)
Top View
(with mounting brackets)
14 mm
92 mm
56 mm
32 mm
110 mm
184 mm maximum
2.3
Back panel
The back panel consists of two different connectors: the 17-way PCB edge connector and the 5-way screw terminal connector.
pH/mV
Pt100/
Pt1000
0V/
PAL
S/
18 19 20 21 22
FUSE250VAC
100mA (F)
RELAY1 RELAY2 ALARM
HOLD NC
-
L N PE
1 2 3 4 5
6
7 8 9
10
11 12 13
14
15 16
+
2.4
Electrical Connections
CAUTION:
Electrical shock hazard! Make sure to remove AC power to the controller before wiring input and output connections, and before opening the controller housing.
Power
Mains
Relay
1
Relay
2
Alarm
1 2 3 4 5 6
7 8 9 10 11 12
Hold
Input
Signal
Output
13 14 15 mA
–
+
16 17
AC: L N PE
1.
VAC live wire
2.
VAC neutral wire
3.
VAC protective ground wire
NOTE: Power is selectable for 110 or 220 VAC via an internal jumper.
Factory setting is indicated on the label on top of the controller.
See Appendix 3 on page 66 for directions on switching the power type.
4.
Low set relay resting position
5.
Low set relay common
6.
Low set relay working position
7.
High set relay resting position
8.
High set relay common
9.
High set relay working position
10.
Alarm relay resting position
11.
Alarm relay common
12.
Alarm relay working position
13.
Hold function switch terminal 1
14.
Hold function switch terminal 2
15.
No connection
16.
0/4 - 20 mA for – current connection
17.
0/4 - 20 mA for + current connection
2.5
Electrode/temperature sensor connections
pH/mV
BNC connector
Pt100/
Pt1000
0V/
PAL
S/
18 19 20
21
22
18.
Pt100/Pt1000 lead 1 terminal (compensating)
19.
Pt100/Pt1000 sense lead terminal (three-wire RTD)
20.
Pt100/Pt1000 sense lead 2 terminal
NOTE:
If using a two-wire RTD, short terminal 19 to terminal 18.
NOTE:
Pt100/Pt1000 is selectable via an internal jumper. Factory default is
Pt100. See Appendix 3 on page 66 for directions on switching the
RTD type.
21.
pH/ORP lead 1 (solution ground, or potential matching pin)
22.
pH/ORP lead 2 (shield)
Connect any pH or ORP electrode with a BNC connector to the BNC connector located the upper right side of the controller back panel.
IMPORTANT:
when using controller in symmetrical mode, be sure to connect solution ground (potential matching pin) to terminal 21. Failure to connect potential matching pin will result in unstable, erroneous readings. See Appendix 2 on page 65 for more information on symmetrical mode.
2.6
HOLD function
The HOLD function lets you force the relays to their resting position by applying a contact closure across terminals 13 and 14.
When the HOLD function is activated, the HOLD indicator will appear in the upper left corner of the display (see page 13 for a diagram of display characters).
Typical applications:
Float or level switch:
Connect to a float switch in your reagent feed tank to shut down pumps or tanks when out of reagent.
Flow switch:
Connect to a flow switch to shut down pumps or valves when the process stream is shut down.
Dual pH/ORP control:
Connect relay of pH controller to hold input of the ORP controller to ensure that Reducing/Oxidizing agent is only added when at a specified level.
Typical level switch wiring
Power
Mains
Relay
1 pH/ORP controller
Relay
2
Alarm
Hold
Input
1 2 3 4 5 6 7 8 9 10 11 12
Signal
Output
13 14 15 mA
– +
16 17
AC: L N PE
Level switch
Typical dual controller wiring
Power
Mains
Relay
1 pH controller
Relay
2
Alarm
Hold
Input
1 2 3 4 5 6 7 8 9 10 11 12
Signal
Output
13 14 15 mA
– +
16 17
AC: L N PE AC: L N PE
Power
Mains
Relay
1
ORP controller
Relay
2
Alarm
Hold
Input
1 2 3 4 5 6 7 8 9 10 11 12
Signal
Output
13 14 15 mA
– +
16 17
3. Overview: Keypad and display
3.1
Keypad
Calibration key
Lets you:
1.
Perform rapid 1- or 2-point calibration (password required).
Enter key
Lets you:
1.
Select individual parameters within the parameter group.
2.
Store input data in the Set-up mode.
3.
Start calibration in the Calibration mode.
CAL
ENTER
▲ and ▼ keys
▲
▼
Let you:
1.
Select various parameter groups.
2.
Set parameters and numerical values in the Set-up mode.
If you continuously hold the button, the setting speed increases.
3.
Control the relays in the Manual mode.
4.
Return to the Measurement mode when both keys are pressed at once.
Relay control key
Lets you:
1.
Switch between Auto and Manual relay operation
(password required).
Relay Selection key
Lets you:
1.
Display momentarily set-point values for the relay contacts in Auto relay operation mode.
2.
Switch between Relay 1 and Relay 2 in
Manual relay operation mode.
AUTO
MANU
REL A
REL B
3.2
Display
The LCD display features two numerical displays that show measured values and status messages for easy, quick reference. The display provides short-text information for configuration and for setting parameters.
• The upper (primary) display shows pH or ORP readings
• The lower (secondary) display shows temperature readings
SETUP MEAS CAL
CON pH mV
HOLD
ERR pH
°
C
ATC
The LCD display area includes the following indicators:
HOLD:
HOLD indicator
SETUP:
Advanced Set-up mode
MEAS:
Measurement mode
CAL:
Calibration mode
CON:
Confirmation indicator
ERR:
error/alarm indicator
°C:
temperature units
ATC:
indicates automatic temperature compensation
: buffer indicator
: electrode indicator
3.3
LED Indicators
The LED indicators provide a quick way to check controller status. They show whether a parameter within its set limits (green light) or outside its set limits
(red light).
Relay A
GREEN — Measured value is within limit entered for Set-point 1.
RED — Measured value is outside limit entered for Set-point 1.
Relay B
GREEN — Measured value is within limit entered for Set-point 2.
RED — Measured value is outside limit entered for Set-point 2.
REL B
Alarm
NONE — No alarm condition exists.
RED — Alarm condition exists. Measured value has been outside of set-point 1, set-point 2, or both for longer than set alarm delay time value. This indicator also will light if the temperature sensor fails. The error indicator will also appear on the display.
ALARM
4. Starting up
When you initially connect power to the controller, it will automatically enter
Measurement mode. This controller features a large dual display.
• The upper display will show the present pH (ORP) value
• The lower display will show the temperature value
Annunciators along the right side of the display will indicate whether the controller is set for pH or ORP measurement.
4.1
Security codes
To access calibration and set up functions, you need to enter a security code.
This controller features two levels of security codes to protect the numerical values, calibration data and unit parameters from unintentional alteration.
The two security codes are as follows:
—pH (ORP) calibration mode security code = 11.
— Setup mode security code = 22.
You cannot change calibration and set up parameters unless you first enter the security code.
You can, however, view all parameters without knowing the security code.
• Refer to Section 5 on page 19 for more information on the Calibration mode
• Refer to Section 6 on page 23 for more information on the Advanced Set-up mode.
Security code notes
If you are viewing the parameters only, the controller automatically reverts to
Measurement mode if you do not press a button for 1 minute. If you are changing parameters, the controller automatically reverts to Measurement mode if you do not press a button for 15 minutes.
4.2
Viewing operating parameters
You can view operating parameters without entering the security code.
However, you must enter the security code to change parameters.
Viewing relay set point values:
1.
Press the Relay Selection (Rel A/Rel B) key.
The upper display will show your set-point value for Relay A; the lower display will show “SP1”.
2.
After two seconds the upper display will show your set-point value for Relay B; the lower display will show “SP2”.
3.
After an additional two seconds the controller will return to Measurement mode.
Viewing electrode slope and offset:
1.
Press the CAL key.
The display will cue you to enter a security code (C.Cd).
2.
Leave the security code at “000”
.
3.
Press the ENTER key.
The upper display will show electrode slope. The lower display will show the pH reading at 0 mV.
4.
Press the ENTER key again
to return to measurement mode.
Viewing set up parameters:
1.
Press the ENTER key.
The display will cue you to enter a security code (S.Cd).
2.
Leave the security code at “000”
.
3.
Press the ENTER key again.
This lets you view (not change) sub groups.
4.
Press the ▲ and ▼ keys to scroll through the groups.
5.
Press the ENTER key
to view a sub group you wish to see in more detail.
6.
Press the ENTER key repeatedly
to scroll through the parameters of the sub group you selected.
7.
Press the ▲ and ▼ keys when you return to the sub group head to select another subgroup.
8.
Repeat steps 4 to 7 as needed.
9.
Press the ▲ and ▼ keys together (escape) at any time to return to
Measurement mode.
4.3
Entering pH (ORP) Calibration mode
To change calibration data, follow these steps:
1.
Press the CAL key.
The upper display will show “000” and the lower display will show “C.Cd”.
See figure
A
2.
Press the ▲ key to scroll the upper display to Calibration security code “11”.
See figure
B
3.
Press the ENTER key.
NOTE: Pressing ENTER at a security code other than “11” will cause the controller to revert to the
Measurement mode.
4.
Press ENTER again
. This lets you begin calibration.
Press the ▲ and ▼ keys simultaneously
(escape) to return to Measurement mode.
See pages 19-22 for pH and ORP calibration instructions.
A
B
Clearing the Calibration security code from the display
The Calibration security code automatically resets from “11’ to “000” after you return to Measurement mode, so you do not need to clear the security code from the display.
Notes
When you enter the Calibration mode with code “11”, the unit will automatically enter into the HOLD mode until you program further instructions (HOLD annunciator appears in upper left corner of display). While on HOLD, the current output and relay positions are frozen.
4.4
Entering Advanced Set-up mode
1.
Press the ENTER key.
The upper display will show “000” and the lower display will show “S.Cd”.
See figure
A
2.
Press the ▲ key to scroll the upper display to Set-up security code “22”.
See figure
B
3.
Press the ENTER key.
NOTE: Pressing ENTER at a value other than “22” will cause the controller to revert to the Measurement mode.
4.
You are now in the Advanced set-up mode.
Press the ▲ and ▼ keys simultaneously
(escape) to return to Measurement mode.
A
B
See pages 23-57 for Advanced
Set Up mode instructions.
Clearing the Advanced Set-up security code from the display
After you have entered the security code and returned to Measurement mode, whenever you press the ENTER key the security code “22” will appear on the display. To conceal the security code, you must manually reset the code.
To clear the Advanced Set-up security code from the display:
1.
Press the ENTER key
in the Measurement mode.
2.
Press the ▲ and ▼ keys to set display to any security code except 11 or 22.
3.
Press the ENTER. key.
Notes
When you enter the Advanced Set-up mode with security code “22”, the unit will automatically enter into the HOLD mode until you program further instructions
(HOLD annunciator appears in upper left corner of display). While on HOLD, the current output and relay positions are frozen.
5. Calibration
You can reach the Calibration mode in two ways:
•
From calibration mode.
From measurement mode, press the CAL key. Press the ▲ and ▼ keys to enter Security code “11”. Press the ENTER key.
•
From advanced set up mode.
From measurement mode, press the ENTER key. Press the ▲ and ▼ keys to enter Security code “22”. Press the ENTER key. Press the ▲ and
▼ keys to scroll to set up mode “CAL PH”.
SETUP
HOLD
HOLD
CAL pH pH
B
A
5.1
pH Calibration
This unit features five preset buffer values (1.00, 4.00, 7.00, 9.00 and 10.00) for fast auto calibration. When you calibrate this instrument, you need a standard pH buffer solution that matches one of these values.
1.
Enter Calibration mode
. From measurement mode, press the CAL key.
Press the ▲ key to enter Security code
“11”. Press the ENTER key.
See figure
A
NOTE:
The upper and lower display should read CAL pH. If they read CAL
OrP, see section 6.7.1 on page 49 for directions on how to switch from ORP to pH readings.
2.
Press the ENTER key
to begin calibration. The “CAL” and buffer indicator appear on the display.
The upper display shows your present uncalibrated reading. The lower display indicates one of the preset pH buffer values.
3.
Press the ▲ and ▼ keys to scroll the lower display to the buffer value that matches your standard solution.
See figure
B
continued on next page
4.
Make sure the electrode is in your buffer solution
. In ATC mode, you must also immerse the temperature sensor in the buffer solution. In the symmetrically high-resistance measurement mode, you must also immerse the solution ground
(potential equalization pin) in the buffer.
5.
Press the ENTER key
to confirm the buffer value. The electrode indicator and
CAL indicator will both flash.
6.
Allow the electrode to stabilize.
You can press the ENTER key to enter the calibration value. If you do not press the
ENTER key, the controller will automatically enter the calibration value when the electrode reading is stable.
7.
If you want to calibrate the controller at a second point, repeat steps 4 through 6 with a second buffer.
See figure
C
8.
After calibrating to a second buffer value, this controller automatically displays slope in the upper display and offset in the lower display.
See figure
D
9.
If you entered the Calibration mode using the CAL key, the controller will automatically return to the measurement mode. Or, press ▲ and ▼ (escape) together to return to measurement mode.
HOLD
READY
HOLD
CAL
CAL pH pH
C mV pH
D
Notes
If there is a calibration error, the controller displays “ERR”. If this happens, push both
▲ and ▼ (escape) to restart the calibration beginning from step 1.
When calibrating with manual temperature compensation, the controller automatically changes from the preset process temperature to the preset calibration temperature.
After leaving the Calibration mode, the controller switches back to the process temperature. To set the calibration temperature and the process temperature, see section 6.3.4
on page 31.
You can view the values for electrode slope and offset without calibration—see section 4.1 on page 16 for instructions. The slope and offset are re-determined after each calibration.
5.2
ORP Calibration
SETUP
HOLD
HOLD
CAL mV
A
B
5.2.1 ORP mV calibration
1.
Enter Calibration mode
. From measurement mode, press the CAL key.
Press the ▲ key to enter Security code
“11”. Press the ENTER key. The display reads CAL ORP.
See figure
NOTE:
If the upper and lower display read
CAL PH, see section 6.7.1 on page 49 for directions on how to switch from pH to
ORP mV readings.
2.
Place sensor in the calibration solution.
3.
Press the ENTER key
to begin calibration. The “CAL” indicator will appear on the display. The upper display shows the current mV output of the electrode without any offset adjustment.
See figure
4.
Determine the mV value of your solution with a meter known to be accurate.
5.
Press the ▲ and ▼ keys to offset the mV value on the controller display to match the value of the solution you are measuring.
6.
To return to Measurement mode,
press the ENTER key
again.
SETUP
5.2.2 ORP % Calibration
HOLD
HOLD
HOLD
CAL
CAL
A
B
C
The ORP % mode lets you calibrate at two points: a low concentration sample (20%) and a high concentration sample (80%).
To calibrate your controller for ORP:
1.
Enter Calibration mode
. From measurement mode, press the CAL key.
Press the ▲ key to enter Security code
“11”. Press the ENTER key. The display reads CAL ORP.
See figure
A
NOTE:
If the upper and lower display read
CAL PH, see section 6.7.1 on page 49 for directions on how to switch from pH to ORP
%readings.
2.
Press the ENTER key
to begin calibration. The “CAL” indicator will appear on the display. The upper display will show 80. The lower display will show C1 (= calibrated value 80%).
See figure
B
3.
Place sensor in the high concentration sample
(relative value of 80%).
4.
Press the ENTER key
to confirm the value. The electrode indicator and
CAL indicator will flash. The unit automatically adjusts its reading to match the solution value.
5.
Press the ENTER key
to calibrate at 20% (low concentration value). The upper display will show 20. The lower display will show C2 (= calibrated value 20%).
See figure
C
6.
Place sensor in the low concentration sample
(relative value of 20%).
7.
Press the ENTER key
to confirm the value. The electrode indicator and
CAL indicator will flash. The unit automatically adjusts its reading to match the solution value.
8.
If you entered the Calibration mode using the CAL key, the controller will automatically return to the Measurement mode upon completion.
Notes
If there is a calibration error, the controller displays “ERR,” and does not automatically return to Measurement mode. If this happens, push ▲ and ▼ at the same time
(escape) to restart the calibration beginning from step 1.
If you stop calibration after entering the first value, or if calibration is defective, the controller will use its original calibration data.
6. Advanced set up mode
The OAKTON 1000-series pH/ORP controller features eight sub groups that organize all set-up parameters. These parameters let you customize your controller for your exact process.
The sub groups are:
1.
Offset adjustment (OFS)
2.
Temperature settings (SEt °C)
3.
Control Relay 1 configuration (SP1)
4.
Control Relay 2 configuration (SP2)
5.
Control type (Cntr)
6.
Current output (rng)
7.
Controller configuration (ConF)
8.
pH (or ORP) calibration (CAL pH or CAL ORP)
To view set-up parameters without access to change them:
From measurement mode:
• Push the ENTER key.
• Leave the security code at “000”.
• Push the ENTER key again.
To change set-up parameters:
From measurement mode:
• Push the ENTER key.
• Press the ▲ key to scroll to security code “22”.
• Push the ENTER key again.
See pages xx-xx for detailed information on each set up parameter.
Notes
To simplify operations, the controller will not display set up parameters that are not relevant to the set up of the controller. For example: If you set the controller for On/Off control, it will not display pulse length settings.
SETUP
HOLD
SETUP
HOLD
SETUP
HOLD
SETUP
HOLD
SETUP
HOLD
SETUP
HOLD
SETUP
HOLD
SETUP
HOLD
6.1
SETUP
HOLD
Advanced set-up mode sub group overview
OFS: Offset mode
Available during pH operation only:
• Set probe offset value
See pages 26-27 for complete offset mode set up instructions
SETUP
HOLD
See pages 28-32 for complete temperature settings set up instructions
SETUP
HOLD
SET °C: Temperature settings
Available during pH operation only:
• Toggle automatic temperature compensation (ATC) on or off
If ATC selected on:
• Temperature sensor calibration
If ATC selected off:
• Set process temperature
• Set calibration temperature
SP1: Set up for relay 1
• Select value for relay 1
• Select relay as low or high set point
• Set hysteresis (dead band)
• Set time delay for when relay switches on
• Set time delay for when relay switches off
See pages 33-38 for complete Control Relay 1 set up instructions
SETUP
HOLD
SP2: Set up for relay 2
• Select value for relay 2
• Select relay as low or high set point
• Set hysteresis (dead band)
• Set time delay for when relay switches on
• Set time delay for when relay switches off
See pages 33-38 or complete Control Relay 2 set up instructions
SETUP
HOLD
See pages 39-43 for complete controller type set up instructions
CNTR: Control type
•Select control type (on/off, pulse frequency, pulse length, or controller off)
On/off, pulse frequency, pulse length modes only:
• Select break contact (de-energized) or make contact (energized) relay type
Pulse frequency or pulse length modes only:
• Set proportional band
• Select relay period duration (or select maximum frequency)
SETUP
HOLD
rng: Current output
• Choose 0-20 or 4-20 mA output
• Select value equivalent to 0 (4) mA
• Select value equivalent to 20 mA
See pagess 44-47 for complete current output set up instructions
SETUP
HOLD
ConF: Controller configuration
• select pH, ORP mV, or ORP % measurement, plus symmetrical or asymmetrical mode
• Select alarm relay delay in seconds
• Select steady or pulse alarm contact
• Select electrode type: glass or antimony
• Reset to controller default settings
See pages 48-53 for complete controller configuration set up instructions
SETUP
HOLD
CAL pH (ORP): pH (ORP) Calibration
• Calibrate first value
• Calibrate second value
• Automatic display of slope and offset after second calibration point
See pages 54-57 for complete calibration set up instructions
6.2
OFS: Offset sub group
OFS: Offset subgroup overview
The Offset sub group lets you:
1
Set pH probe offset value
This sub group is available during pH operation only.
SETUP
HOLD
1
SETUP
HOLD pH pH
6.2.1 Calculating the pH electrode offset value
NOTE:
you can only perform electrode offset in the pH mode.
The offset sub group lets you change the pH probe offset without removing the probe from your system. You can make adjustments of up to ±120 mV of the displayed value.
The controller will add or subtract the offset value from the measured pH and display the correct value. However, if you need to offset the value beyond the average offset you would expect in your application type, consider a full calibration or even electrode replacement. To determine your pH offset value:
1.
Pull a grab sample from your system.
Record the controller’s pH reading at the time you take the sample.
2.
Measure the pH of your grab sample using a calibrated pH meter.
Record the correct pH value.
3.
Subtract the correct pH value from the controller’s reading in step 1.
This value is your offset.
6.2.2. Entering the pH offset value:
From measurement mode:
1.
Enter Advanced set-up mode.
Push the ENTER key. Press the
▲ key to scroll to security code “22”.
Push the ENTER key again.
2.
Press the ▲ and ▼ keys to scroll until the upper display shows OFS.
3.
Press the ENTER key.
The lower display shows the current measured pH value. The upper display shows the current offset value.
SETUP
HOLD
SETUP
HOLD pH pH
See bold figure at right.
4.
Press the ▲ and ▼ keys to adjust the offset value until the upper display shows the offset value calculated as explained in directions above .
As you adjust the offset value, the lower display will update to match the current reading plus the electrode offset.
5.
Press the ENTER key
to enter the offset value.
6.
Proceed to step 3 of section 6.2.1, or press the ▲ and ▼ keys together to return to measurement mode.
Notes
The offset value is reset during full calibration. See Section 5.1 starting on page 19 for pH calibration instructions.
6.3
SET °C: Temperature settings
SET °C: Temperature settings
The temperature settings sub group lets you:
1
Toggle automatic temperature compensation (ATC) on or off
If ATC selected on:
2
Temperature sensor calibration
If ATC selected off:
3
Set process temperature
4
Set calibration temperature
This sub group is available during pH operation only.
SETUP
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1
SETUP
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2
SETUP
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1
SETUP
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SETUP
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3
4
SETUP
HOLD
This set up group has two different sub paths. The screens you see depend on if you select ATC on or off.
6.3.1 Selecting automatic or manual temperature compensation
From measurement mode:
1.
Enter Advanced set-up mode.
Push the ENTER key. Press the
▲ key to scroll to security code “22”.
Push the ENTER key again.
2.
Press the ▲ and ▼ keys to scroll until the upper display shows
SEt °C.
3.
Press the ENTER key.
The lower display will show “Atc”; the upper display will show “on” or “oFF”.
See figures at right
4.
Press the ▲ and ▼ keys to toggle between ATC on and off.
5.
Press the ENTER key
to confirm selection.
6.
• If you selected ATC on:
Proceed to step 3 of section 6.3.2
• If you selected ATC off:
Proceed to step 3 of section 6.3.3
• To return to Measurement mode:
Press the ▲ and ▼ keys together
SETUP
HOLD
SETUP
HOLD
6.3.2 Temperature sensor calibration (ATC mode only)
NOTE:
This parameter is blanked out when the controller is set for ATC off.
This mode lets you offset the controller to compensate for small inaccuracies in your temperature sensor. You can offset the temperature sensor up to ±5°C.
1.
Select “ATC on”
as described in
Section 6.3.1.
2.
Press the ENTER key.
The upper display shows the temperature offset.
The lower display shows the current measured temperature.
See bold figure at right
3.
Compare the current measured temperature on the controller display to a thermometer known to be accurate.
4.
Press the ▲ and ▼ keys to scroll the lower display to match the known temperature. The upper display shows the amount of offset. You can offset temperature up to ±5°C.
5.
Press the ENTER key
to confirm selection and return to advanced set up mode.
Return to Measurement mode by pressing the ▲ and ▼ keys (escape) simultaneously.
SETUP
HOLD
SETUP
HOLD
SETUP
HOLD
6.3.3 Manual temperature compensation
Manual temperature compensation lets you ignore your temperature probe input or use a probe without a built-in temperature sensor. The controller will compensate for temperature at the values you enter.
For manual temperature compensation, you can set two different temperatures:
• process temperature
• calibration temperature
This allows calibration at a temperature other than your process temperature.
Example:
setting a calibration temperature of 25°C lets you calibrate using standard buffer solutions at 25°C, even if your process temperature is a different temperature.
You can set process and calibration temperatures between –9.9 to 125°C.
Default temperature is 25°C.
6.3.4 Setting pH Process Temperature
NOTE:
This parameter is blanked out when the controller is set for ATC on.
1.
Select “ATC off”
as described in
Section 6.3.1.
2.
Press the ENTER key.
The upper display shows the current process temperature and the lower display shows P.
O C (process temperature).
See bold figure at right
3.
Press the ▲ and ▼ keys to adjust the process temperature value. You can adjust the value from –9.9 to 125°C.
4.
Press the ENTER key
to confirm selection.
5.
Proceed to step 3 of section 6.3.5, or press the ▲ and ▼ keys together to return to measurement mode.
SETUP
HOLD
SETUP
HOLD
SETUP
HOLD
SETUP
HOLD
6.3.5 Setting pH Calibration Temperature
NOTE:
This parameter is blanked out when the controller is set for ATC on.
From measurement mode:
1.
Select “ATC off”
as described in
Section 6.3.1
2.
Press the ENTER key twice.
The upper display shows the current calibration temperature and the lower display shows C.
O C
(calibration temperature).
See bold figure at right
3.
Press the ▲ and ▼ keys to adjust the calibration temperature value.
You can adjust the value from
–9.9 to 125°C.
4.
Press the ENTER key
to confirm selection and return to advanced set up mode.
Return to Measurement mode by pressing the ▲ and ▼ keys (escape) simultaneously.
SETUP
HOLD
SETUP
HOLD
SETUP
HOLD
SETUP
HOLD
6.4
SP1 (SP2): Set up for Relay 1 (2) sub group
SP1 (SP2): Set up for relay SP1 (SP2) overview:
Relay set up 1 and relay set up 2 sub groups let you:
1
2
Select value for relay SP1
(SP2)
Select relay as low or high set point
These modes appear only if on/off control type is selected
(select control type in Controller sub group—see page 40):
3
Set hysteresis (dead band)
4
Set time delay for when relay switches on
5
Set time delay for when relay switches off
The SP1 option sets the operating parameters for relay 1; the SP2 option sets the operating parameters for relay 2. Since these two groups offer the same set-up parameters, they are described together.
SETUP
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HOLD
SETUP
1
SETUP
HOLD
2
SETUP
HOLD
3
SETUP
HOLD
4
SETUP
HOLD
5 pH
°
C
6.4.1 Selecting the relay set point values
This lets you choose the pH (or ORP) value that will cause your controller to activate.
If this value is crossed, and the alarm relay is selected ON, the alarm will trigger. Additionally, the set point relay
LED will turn from green to red.
HOLD
SETUP
From measurement mode:
1.
Enter Advanced set-up mode.
Push the ENTER key. Press the
▲ key to scroll to security code
“22”. Push the ENTER key again.
2.
Press the ▲ and ▼ keys to scroll until the upper display shows SP1
(SP2).
3.
Press the ENTER key.
The upper display shows the current set point value and the lower display shows
SP1 (SP2).
See bold figure at right.
4.
Press the ▲ and ▼ keys to enter your value for Set Point 1 (Set Point
2). Your controller will activate at the value you select.
5.
Press the ENTER key
to confirm your selection.
6.
Proceed to step 3 of section 6.4.2, or press the ▲ and ▼ keys together to return to measurement mode.
SETUP
HOLD
SETUP
HOLD
SETUP
HOLD
SETUP
HOLD
SETUP
HOLD pH
6.4.2 Selecting relay as high or low set point
Select a low set point to activate controller when your value undershoots the set point; select a high set point to activate controller when your value overshoots the set point.
Using both SP1 and SP2, you can select lo/lo, lo/hi, hi/lo, or hi/hi set points.
SETUP
HOLD
HOLD
SETUP
From measurement mode:
1.
Enter Advanced set-up mode.
Push the ENTER key. Press the
▲ key to scroll to security code
“22”. Push the ENTER key again.
2.
Press the ▲ and ▼ keys to scroll until the upper display shows SP1
(SP2).
3.
Press the ENTER key
until the upper display shows Lo or Hi (for low or high set point) and the lower display shows SP1 (SP2).
See bold figure at right.
4.
Press the ▲ and ▼ keys to toggle between low (lo) or high (hi) set point for SP1 (SP2).
5.
Press the ENTER key
to confirm your selection.
6.
Proceed to step 3 of section 6.4.3, or press the ▲ and ▼ keys together to return to measurement mode.
SETUP
HOLD
SETUP
HOLD
SETUP
HOLD
SETUP
HOLD
Notes
If controller is set for proportional control, you will return to Advanced
Set up mode after pressing ENTER.
See page 40 for information on changing your controller type.
pH
6.4.3 Selecting a hysteresis (dead band) value
NOTE:
this parameter appears only if on/off control type is selected.
Hysteresis prevents rapid contact switching if your value is fluctuating near the set point. It allows the set point value to overshoot by the specified hysteresis value. You can set the hysteresis value from:
• pH mode: 0.1 to 1.0 pH
• ORP mV mode: 10 to 100 mV
• ORP % mode: 1 to 10.0%
SETUP
HOLD
HOLD
SETUP
From measurement mode:
1.
Enter Advanced set-up mode.
Push the ENTER key. Press the
▲ key to scroll to security code
“22”. Push the ENTER key again.
2.
Press the ▲ and ▼ keys to scroll until the upper display shows SP1
(SP2).
3.
Press the ENTER key
until the upper display shows the hysteresis
(dead band) value and the lower display shows HYS.
See bold figure at right.
4.
Press the ▲ and ▼ keys to enter your hysteresis value for SP 1 (SP 2).
Your controller will activate at the value you select.
5.
Press the ENTER key
to confirm your selection.
6.
Proceed to step 3 of section 6.4.4, or press the ▲ and ▼ keys together to return to measurement mode.
SETUP
HOLD
SETUP
HOLD
SETUP
HOLD
SETUP
HOLD pH
6.4.4 Setting an on-delay time lag
NOTE:
this parameter appears only if on/off control type is selected.
You can set a time delay for each relay, which stops the relay from switching on too soon. This helps prevent premature relay action and false alarms. This controller lets you set a 0 to 2000 second time delay before your relay activates.
SETUP
HOLD
HOLD
SETUP
From measurement mode:
1.
Enter Advanced set-up mode.
Push the ENTER key. Press the
▲ key to scroll to security code
“22”. Push the ENTER key again.
2.
Press the ▲ and ▼ keys to scroll until the upper display shows SP1
(SP2).
3.
Press the ENTER key
until the upper display shows the “on delay” time and the lower display shows
On.d.
See bold figure at right.
4.
Press the ▲ and ▼ keys to enter on delay time for Set Point 1
(Set Point 2). Your controller will delay activation for the number of seconds (0 to 2000) you select.
5.
Press the ENTER key
to confirm your selection.
6.
Proceed to step 3 of section 6.4.5, or press the ▲ and ▼ keys together to return to measurement mode.
SETUP
HOLD
SETUP
HOLD
SETUP
HOLD
SETUP
HOLD pH
6.4.5 Setting an off-delay time lag
NOTE:
this parameter appears only if on/off control type is selected.
You can set a time lag for each relay, which helps to prevent your relay from switching off too soon. This helps prevent premature relay action and false alarms. This controller lets you set a
0 to 2000 second time delay before your relay deactivates.
SETUP
HOLD
HOLD
SETUP
From measurement mode:
1.
Enter Advanced set-up mode.
Push the ENTER key. Press the
▲ key to scroll to security code
“22”. Push the ENTER key again.
2.
Press the ▲ and ▼ keys to scroll until the upper display shows SP1
(SP2).
3.
Press the ENTER key
until the upper display shows “off delay” time and the lower display shows
OF.d.
See bold figure at right.
4.
Press the ▲ and ▼ keys to enter off delay time for Set Point 1
(Set Point 2). Your controller will delay activation for the number of seconds (0 to 2000) you select.
5.
Press the ENTER key
to confirm your selection and return to advanced set up mode.
Press the ▲ and ▼ keys together to return to measurement mode.
SETUP
HOLD
SETUP
HOLD
SETUP
HOLD
SETUP
HOLD pH
6.5
Cntr: Control type sub group
CNTR: Control type sub group overview
1
Select control type:
[on/off, proportional (pulse frequency or pulse length), or controller off]
On/off, pulse frequency, and pulse length modes only:
2
Select break contact (de-energized) or make contact (energized) relay type
Pulse frequency and pulse length modes only:
3
Set proportional band
4
Select relay period duration (or maximum frequency)
SETUP
HOLD
SETUP
HOLD
1
2
SETUP
HOLD
3
SETUP
HOLD
4
SETUP
HOLD
1
SETUP
HOLD
2
SETUP
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3
SETUP
HOLD
SETUP
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4
1
SETUP
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2
SETUP
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1
SETUP
HOLD
6.5.1 Selecting control type
This mode lets you choose one of four controller types:
—L.Ct On/off control: use with pumps or valves for fast response.
—PFC Pulse frequency proportional
control:
use for smooth operation of frequency-dependent pumps.
—PLC Pulse length proportional
control:
use for smooth, precise control of valves.
—oFF Controller off: use to operate controller as a monitor only or to keep relays from switching when changing set-up parameters.
From measurement mode:
1.
Enter Advanced set-up mode.
Push the ENTER key. Press the ▲ key to scroll to security code “22”.
Push the ENTER key again.
2.
Press the ▲ and ▼ keys to scroll until the upper display shows Cntr.
3.
Press the ENTER key
until the upper display shows the current controller type and the lower display shows tyP.
4.
Press the ▲ and ▼ keys to select your controller type.
See bold figures at right.
5.
Press the ENTER key
to confirm your selection.
6.
Proceed to step 3 of section 6.5.2, or press the ▲ and ▼ keys together to return to measurement mode.
SETUP
HOLD
SETUP
HOLD
On/off control
SETUP
HOLD
Pulse frequency proportional control
SETUP
HOLD
Pulse length proportional control
Controller off
6.5.2 Selecting break/make contact relay type
NOTE:
If the controller type “oFF” is set, this parameter is blanked out.
This mode lets you determine which relay state will trigger the alarm state:
• de-energized (break contact): relay is de-energized in no alarm condition
• energized (make contact): relay is energized in no alarm condition
Controller default is de-energized (break contact).
SETUP
HOLD
From measurement mode:
1.
Enter Advanced set-up mode.
Push the ENTER key. Press the ▲ key to scroll to security code “22”. Push the
ENTER key again.
2.
Press the ▲ and ▼ keys to scroll until the upper display shows Cntr.
3.
Press the ENTER key
until the lower display shows rEL and the upper display shows the current relay selection (de-energized = dEEN or energized = EN).
See bold figures at right.
4.
Press the ▲ and ▼ keys to choose de-energized (break contact) or energized (make contact) relays.
5.
Press the ENTER key
to confirm your selection.
6.
Proceed to step 3 of section 6.5.3, or press the ▲ and ▼ keys together to return to measurement mode.
SETUP
HOLD
De-energized relay
Energized relay
6.5.3 Selecting proportional band
NOTE:
If you set controller “oFF” or “L.Ct”, the parameter listed below is blanked out.
This lets you determine the proportional band. The proportional band is the deviation from your set point at which the relays pulse at their maximum frequency (or at which the pulse length is at its maximum length). You can select this range from 10 to 200% of full-scale.
From measurement mode:
1.
Enter Advanced set-up mode.
Push the ENTER key. Press the ▲ key to scroll to security code “22”.
Push the ENTER key again.
2.
Press the ▲ and ▼ keys to scroll until the upper display shows Cntr.
3.
Press the ENTER key
until the upper display shows the proportional range (a number from 10 to 200%), and the lower display shows PrP.
See bold figure at right.
4.
Press the ▲ and ▼ keys to choose the proportional band value.
5.
Press the ENTER key
to confirm your selection.
6.
Proceed to step 3 of section 6.5.4, or press the ▲ and ▼ keys together to return to measurement mode.
SETUP
HOLD
Proportional band
6.5.4 Selecting period duration / maximum frequency
NOTE:
If you set controller type “oFF” or “L.Ct”, the parameter listed below is blanked out.
This mode lets you:
• in pulse length (PLC) mode: set the period duration (seconds)
• in pulse frequency (PFC) mode: set the maximum frequency (in 1 ⁄ min
)
From measurement mode:
1.
Enter Advanced set-up mode.
Push the ENTER key. Press the ▲ key to scroll to security code “22”.
Push the ENTER key again.
2.
Press the ▲ and ▼ keys to scroll until the upper display shows Cntr.
3.
Press the ENTER key
until the lower display shows t.PL or F.PF
—In PLC (pulse length) mode: The lower display will show t.PL to indicate pulse length. The upper display will show your current pulse length. You can select any value from 0.5 to 20 seconds.
—In PFC (pulse frequency) mode:
The lower display will show F.PF
to indicate pulse frequency. The upper display will show your current maximum pulse rate. You can select any value from 60 to 120 pulses per minute.
See bold figures at right.
4.
Press the ▲ and ▼ keys to choose the period duration or maximum frequency, depending on your mode.
5.
Press the ENTER key
to confirm your selection and return to advanced set up mode.
Press the ▲ and ▼ keys together to return to measurement mode.
SETUP
HOLD
maximum frequency (pulse frequency)
SETUP
HOLD
Period duration (pulse length)
Notes
In pulse frequency mode, when the measured value exceeds the deviation from the set-point, the controller will pulse the relay at this rate.
6.6
rng: Current output sub group rng: Current output subgroup overview
Current output sub group lets you:
1
Choose 0-20 or 4-20 mA output
2
Select pH (or ORP) value equivalent to 0 (4) mA
3
Select pH (or ORP) value equivalent to 20 mA
SETUP
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1
SETUP
HOLD
2
SETUP
HOLD
3
SETUP
HOLD
6.6.1 Choosing output range (4-20 or 0-20 mA)
This parameter lets you select an output range of 4-20 or 0-20 mA. If you select 4-20 mA, the minimum current supplied by terminal 17 and 16 of the
17-way terminal block corresponds to
4 mA. If you select 0-20 mA, the minimum current corresponds to 0.
SETUP
HOLD
From measurement mode:
1.
Enter Advanced set-up mode.
Push the ENTER key. Press the ▲ key to scroll to security code “22”.
Push the ENTER key again.
2.
Press the ▲ and ▼ keys to scroll until the upper display shows
“rng”.
3.
Press the ENTER key
until the upper display shows the output type
(0-20 or 4-20) and the lower display shows “out”.
See bold figures at right.
4.
Press the ▲ and ▼ keys to select your output range: 0-20 or 4-20 mA.
5.
Press the ENTER key
to confirm your selection.
6.
Proceed to step 3 of section 6.6.2, or press the ▲ and ▼ keys together to return to measurement mode.
SETUP
HOLD
SETUP
HOLD
SETUP
HOLD
6.6.2 Selecting pH (ORP) value at 0 (4) mA
This parameter lets you choose a pH (ORP) value to be equivalent to
0 (4) mA. Select the lowest value of the pH (ORP) range that you want a recorder or transmitter to detect.
From measurement mode:
1.
Enter Advanced set-up mode.
Push the ENTER key. Press the ▲ key to scroll to security code “22”.
Push the ENTER key again.
2.
Press the ▲ and ▼ keys to scroll until the upper display shows
“rng”.
3.
Press the ENTER key
until the upper display shows a pH value and the lower display shows
“r.0” or “r.4”
See bold figures at right.
4.
Press the ▲ and ▼ keys to select the pH (ORP) value equivalent to
0 (4) mA.
5.
Press the ENTER key
to confirm your selection.
6.
Proceed to step 3 of section 6.6.3, or press the ▲ and ▼ keys together to return to measurement mode.
SETUP
HOLD
SETUP
HOLD
SETUP
HOLD
SETUP
HOLD
6.6.3 Selecting pH (ORP) value at 20 mA
This parameter lets you choose a pH (ORP) value to be equivalent to
20 mA. Select the highest value of the pH (ORP) range that you want a recorder or transmitter to detect.
From measurement mode:
1.
Enter Advanced set-up mode.
Push the ENTER key. Press the ▲ key to scroll to security code “22”.
Push the ENTER key again.
2.
Press the ▲ and ▼ keys to scroll until the upper display shows
“rng”.
3.
Press the ENTER key
until the upper display shows a pH (ORP) value and the lower display shows
“r.20”.
See bold figures at right.
4.
Press the ▲ and ▼ keys to select the pH (ORP) value equivalent to
20 mA.
5.
Press the ENTER key
to confirm your selection and return to advanced set up mode.
Press the ▲ and ▼ keys together to return to measurement mode.
Notes
The measurement range corresponding to the current output must be at least
1 pH unit or ±50 mV.
SETUP
HOLD
SETUP
HOLD
SETUP
HOLD
SETUP
HOLD
6.7
ConF: Configuration sub group
ConF: Configuration subgroup overview
Configuration sub group lets you:
1
2
3
4
5
Select pH, ORP mV, or ORP % measurement units
Select alarm delay in seconds
Select steady or pulse alarm contact
Select electrode type (glass or antimony)
Reset to default settings
SETUP
HOLD
SETUP
HOLD
4
5
SETUP
HOLD
1
SETUP
HOLD
2
SETUP
HOLD
3
SETUP
HOLD
6.7.1
Selecting measurement units (pH, ORP mV, or ORP %)
This parameter group lets you select pH, ORP mV, or ORP % readings, and input type symmetrical or asymmetrical. Use asymmetrical mode under normal operating conditions. Use symmetrical mode when the measuring environment is electrically noisy (i.e. in electroplating environments). Default setting is pH measurement in asymmetrical mode.
See Appendix 2 on page 65 for more details on operation in symmetrical and asymmetrical modes.
From measurement mode:
1.
Enter Advanced set-up mode.
Push the ENTER key. Press the ▲ key to scroll to security code “22”.
Push the ENTER key again.
2.
Press the ▲ and ▼ keys to scroll until the upper display shows
ConF.
3.
Press the ENTER key
until the upper upper display shows the control type (pH, ORP mV or ORP
%) and the lower display shows symmetrical (SY) or asymmetrical
(ASY) input type. Choose ORP without the mV indicator for ORP % readings.
See bold figure at right.
4.
Press the ▲ and ▼ keys to select the measurement units you require.
5.
Press the ENTER key
to confirm your selection.
6.
Proceed to step 3 of section 6.7.2, or press the ▲ and ▼ keys together to return to measurement mode.
SETUP
HOLD
SETUP
HOLD
SETUP
HOLD
SETUP
HOLD
SETUP
HOLD
SETUP
HOLD
Notes
IMPORTANT:
when using controller in symmetrical mode, be sure to connect solution ground (potential matching pin) to terminal 21. Failure to connect solution ground will result in unstable, erroneous readings.
6.7.2 Selecting the alarm time lag
This parameter group lets you select a period of time before the alarm relay activates when your set point has been overshot. You can select from 0 to 2000 seconds.
From measurement mode:
1.
Enter Advanced set-up mode.
Push the ENTER key. Press the ▲ key to scroll to security code “22”.
Push the ENTER key again.
2.
Press the ▲ and ▼ keys to scroll until the upper display shows ConF.
3.
Press the ENTER key
until the upper display shows a numerical value (in seconds) and the lower shows AL.d.
See bold figure at right.
4.
Press the ▲ and ▼ keys to select the length of the alarm delay
(0 to 2000 seconds) you want.
5.
Press the ENTER key
to confirm your selection.
6.
Proceed to step 3 of section 6.7.3, or press the ▲ and ▼ keys together to return to measurement mode.
SETUP
HOLD
SETUP
HOLD
SETUP
HOLD
SETUP
HOLD
SETUP
HOLD
SETUP
HOLD
6.7.3 Selecting steady or pulse contact for the alarm relay
This parameter group lets you select whether the alarm contact will operate as a steady contact or a fleeting (single pulse) contact. Pulse contact closing time is 1 second.
From measurement mode:
1.
Enter Advanced set-up mode.
Push the ENTER key. Press the ▲ key to scroll to security code “22”.
Push the ENTER key again.
2.
Press the ▲ and ▼ keys to scroll until the upper display shows
ConF.
3.
Press the ENTER key
until the upper display shows StdY or FLEt and the lower shows AL.C.
—AL.C = alarm contact
—StdY = steady contact
—FLEt = fleeting (single pulse) contact
See bold figure at right.
4.
Press the ▲ and ▼ keys to select steady or pulse contact.
5.
Press the ENTER key
to confirm your selection.
6.
Proceed to step 3 of section 6.7.4, or press the ▲ and ▼ keys together to return to measurement mode.
SETUP
HOLD
SETUP
HOLD
SETUP
HOLD
SETUP
HOLD
SETUP
HOLD
SETUP
HOLD
6.7.4 Selecting pH sensor type
NOTE:
This parameter is blocked out in ORP mode.
This parameter group lets you configure the controller for glass or antimony electrodes. Use an antimony electrode for systems with hydrofluoric acid content.
Default is glass.
From measurement mode:
1.
Enter Advanced set-up mode.
Push the ENTER key. Press the ▲ key to scroll to security code “22”.
Push the ENTER key again.
2.
Press the ▲ and ▼ keys to scroll until the upper display shows ConF.
3.
Press the ENTER key
until the upper display shows GLAS or
AnTY and the lower shows EL.
—EL = electrode
—GLAS = glass
—AnTY = antimony
See bold figure at right.
4.
Press the ▲ and ▼ keys to select glass or antimony electrode type.
5.
Press the ENTER key
to confirm your selection.
6.
Proceed to step 3 of section 6.7.5, or press the ▲ and ▼ keys together to return to measurement mode.
SETUP
HOLD
SETUP
HOLD
SETUP
HOLD
SETUP
HOLD
SETUP
HOLD
Notes
After each changeover, the factory calibration data for slope and offset are overwritten. Be sure to recalibrate
(see Section 5.1 beginning on page 19).
SETUP
HOLD
6.7.5 Reverting to factory default settings
Use this parameter to reset all settings to factory default. Changing from “no” to “YES” and pressing the ENTER key resets all settings to factory default.
See Appendix 1 on page 64 for a listing of default settings.
WARNING:
If you select yes, all settings you have made are overwritten as a result!
From measurement mode:
1.
Enter Advanced set-up mode.
Push the ENTER key. Press the ▲ key to scroll to security code “22”.
Push the ENTER key again.
2.
Press the ▲ and ▼ keys to scroll until the upper display shows ConF.
3.
Press the ENTER key
until the upper display shows no and the lower shows dEF (default).
See bold figure at right.
4.
Press the ▲ and ▼ keys to select yes or no.
5.
Press the ENTER key
to confirm your selection.
• If you selected “YES”, pressing the ENTER key will overwrite all settings you have made and automatically return you to
Measurement mode.
• If you selected “NO”, pressing the ENTER key confirms your selection and returns you to advanced set up mode. Press the
▲ and ▼ keys together to return to measurement mode.
Notes
See Appendix 1 on page 64 for a chart of all factory default settings.
SETUP
HOLD
SETUP
HOLD
SETUP
HOLD
SETUP
HOLD
SETUP
HOLD
SETUP
HOLD
6.8
Calibration sub group
The calibration procedure in Advanced Set-up mode is identical to the procedure in
Calibration mode. The only difference is that the controller will revert back to Set-Up
Mode (instead of Measurement mode) after calibration is complete.
To reach Calibration mode, perform one of the following:
•
From calibration mode.
From measurement mode, press the CAL key. Press the ▲ and ▼ keys to enter Security code “11”. Press the ENTER key.
•
From advanced set up mode.
From measurement mode, press the ENTER key. Press the ▲ and ▼ keys to enter Security code “22”. Press the ENTER key. Press the ▲ and
▼ keys to scroll to set up mode “CAL PH”.
SETUP
HOLD
HOLD
CAL pH pH
B
A
6.8.1 pH Calibration
This unit features five preset buffer values (1.00, 4.00, 7.00, 9.00 and 10.00) for fast auto calibration. When you calibrate this instrument, you need a standard pH buffer solution that matches one of these values.
1.
Enter Calibration mode
. From measurement mode, press the ENTER key. Press the ▲ and ▼ keys to enter
Security code “22”. Press the ENTER key. Press the ▲ and ▼ keys to scroll to set up mode “CAL PH”.
See figure
A
NOTE:
The upper and lower display should read CAL pH. If they read CAL
OrP, see section 6.7.1 on page 49 for directions on how to switch from ORP to pH readings.
2.
Press the ENTER key
to begin calibration. The “CAL” and buffer indicator appear on the display.
The upper display shows your present uncalibrated reading. The lower display indicates one of the preset pH buffer values.
3.
Press the ▲ and ▼ keys to scroll the lower display to the buffer value that matches your standard solution.
See figure
B
4.
Make sure the electrode is in your buffer solution
. In ATC mode, you must also immerse the temperature sensor in the buffer solution. In the symmetrically high-resistance measurement mode, you must also immerse the solution ground
(potential equalization pin) in the buffer.
5.
Press the ENTER key
to confirm the buffer value. The electrode indicator and
CAL indicator will both flash.
6.
Allow the electrode to stabilize.
You can press the ENTER key to enter the calibration value. If you do not press the
ENTER key, the controller will automatically enter the calibration value when the electrode reading is stable.
7.
If you want to calibrate the controller at a second point, repeat steps 4 through 6 with a second buffer.
See figure
C
8.
After calibrating to a second buffer value, this controller automatically displays slope in the upper display and offset in the lower display.
See figure
D
9.
If you entered the Calibration mode using the CAL key, the controller will automatically return to the measurement mode. Or, press ▲ and ▼ (escape) together to return to measurement mode.
HOLD
READY
HOLD
CAL
CAL pH pH
C mV pH
D
Notes
If there is a calibration error, the controller displays “ERR”. If this happens, push both
▲ and ▼ (escape) to restart the calibration beginning from step 1.
When calibrating with manual temperature compensation, the controller automatically changes from the preset process temperature to the preset calibration temperature.
After leaving the Calibration mode, the controller switches back to the process temperature. To set the calibration temperature and the process temperature, see section 6.3.4 on page 31.
You can view the values for electrode slope and offset without calibration—see section 4.1on page 16 for instructions. The slope and offset are re-determined after each calibration.
6.8.2 ORP Calibration
SETUP
HOLD
HOLD
CAL mV
A
B
A. ORP mV calibration
1.
Enter Calibration mode
. From measurement mode, press the ENTER key. Press the ▲ key to enter Security code “22”.
Press the ENTER key. Press the ▲ and ▼ keys to scroll to set up mode “CAL
ORP”.
See figure
A
NOTE:
If the upper and lower display read
CAL PH, see section 6.7.1 on page 49 for directions on how to switch from pH to
ORP mV readings.
2.
Place sensor in the calibration solution.
3.
Press the ENTER key
to begin calibration. The “CAL” indicator will appear on the display. The upper display shows the current mV output of the electrode without any offset adjustment.
See figure
B
4.
Determine the mV value of your solution with a meter known to be accurate.
5.
Press the ▲ and ▼ keys to offset the mV value on the controller display to match the value of the solution you are measuring.
6.
To confirm your selection and return to
Advanced Set Up mode, press the
ENTER key
again.
SETUP
B. ORP % Calibration
HOLD
HOLD
HOLD
CAL
CAL
A
B
C
The ORP % mode lets you calibrate at two points: a low concentration sample (20%) and a high concentration sample (80%).
To calibrate your controller for ORP:
1.
Enter Calibration mode
. From measurement mode, press the CAL key. Press the
▲ key to enter Security code “11”. Press the ENTER key. The display reads CAL
ORP.
See figure
NOTE:
If the upper and lower display read
CAL PH, see section 6.7.1 on page 49 for directions on how to switch from pH to ORP
%readings.
2.
Press the ENTER key
to begin calibration. The “CAL” indicator will appear on the display. The upper display will show 80. The lower display will show C1 (= calibrated value 80%).
See figure
3.
Place sensor in the high concentration sample
(relative value of 80%).
4.
Press the ENTER key
to confirm the value. The electrode indicator and
CAL indicator will flash. The unit automatically adjusts its reading to match the solution value.
5.
Press the ENTER key
to calibrate at 20% (low concentration value). The upper display will show 20. The lower display will show C2 (= calibrated value 20%).
See figure
6.
Place sensor in the low concentration sample
(relative value of 20%).
7.
Press the ENTER key
to confirm the value. The electrode indicator and CAL indicator will flash. The unit automatically adjusts its reading to match the solution value. The controller returns to Advanced Set Up mode.
Notes
If there is a calibration error, the controller displays “ERR,” and does not automatically return to Measurement mode. If this happens, push ▲ and ▼ at the same time (escape) to restart the calibration beginning from step 1.
If you stop calibration after entering the first value, or if calibration is defective, the controller will use its original calibration data.
7. Alarm relay
This controller features a separate alarm relay. When the alarm is activated, the red alarm LED will light on the controller and the ERR indicator will appear on the controller display. The ATC and ERR indicators will blink if the error is due to temperature measurement. Additionally, you can hook a separate visual or audible alarm to this relay.
Delaying alarm relay action
Delay relay activation by 0 to 2000 seconds (factory default is 0 seconds). See section
6.7.2 on page 51 for information on how to set an alarm delay.
8. Taking measurements
In normal measurement mode, the display will appear as shown in the figure at right. The readings will be in pH, ORP mV, or ORP%, depending on set up mode selection—see page 49 for more information. In ORP % mode, neither the pH nor the mV indicators display.
If ATC is selected on, the ATC indicator should be lit. If manual temperature selection is chosen, the
ATC annunciator will be off. When the controller is in ATC mode, and the temperature sensor wire is broken or disconnected, an error message will be displayed, plus the alarm LED indicator and relay will be activated.
Power
Mains
Relay
1
Relay
2
Alarm
1 2 3 4 5 6 7 8 9 10 11 12
Hold
Input
Signal
Output
13 14
15 mA
–
+
16 17
AC: L N PE
10.
Alarm relay resting position
11.
Alarm relay common
12.
Alarm relay working position
MEAS pH
°
C
ATC
9. Manual control mode
You can control devices connected to Relay A or Relay B from the front panel of this controller. Automatic mode is the mode that the controller normally enters when you switch it on. In Automatic mode, the controller’s set-point values actuate the relays.
In Manual mode, you have manual control of your relays so you can prime your pump or check pump status without operating the entire system.
To enter manual mode:
1.
Press the Relay Control (auto/manu) key.
The upper display will show “000”; the lower display will show “S.Cd” to prompt you to enter the Advanced Set-up
Code.
2.
Press the ▲ and ▼ keys to scroll the upper display until it reads “22”.
3.
Press the ENTER key.
The Manual indicator by the Relay Control key will light.
NOTE:
Pressing ENTER at a value other than “22” will cause the controller to revert to the Measurement mode, and the relays will remain in automatic mode.
4.
Press the Relay Selection key
to select either Relay A or Relay B. The LED next to the currently selected relay (A or B) will light.
The manual control options now available will depend on the control type (on/off, pulse length, or pulse frequency) you selected set in Section 6.5.1 (see page 40).
—If you selected On/Off control:
The upper display will read the current measured value. The lower display will show “oFF” or “on” depending on the relay status of the currently selected relay.
—If you selected Pulse Length control:
The upper display will read the current measured value. The lower display will show the current pulse duration.
—If you selected Pulse Frequency control:
The upper display will read the current measured value. The lower display will show the current pulse frequency.
5.
Press the ▲ and ▼ keys to change the Relay on/off status, pulse length, or pulse frequency. The LED indicators at the right of the controller will also change between Red and Green to indicate Relay status.
NOTE:
If you wish to manually change the status of both relays, press the RELAY
SELECTION key at this point and repeat step 5 for the second relay. This first relay will remain under manual control while you are setting the second relay.
6.
Press the RELAY CONTROL key
to return to Measurement mode. The relays are now back under automatic control.
10. Specifications
Range
Resolution
Accuracy
pH
0.00 to 14.00
0.01 pH
±0.01 pH
ORP mV
±1000 mV
1 mV
±1 mV
ORP %
0 to 100%
0.1%
±1 mV
Temp.
–9.9 to 125.0°C
0.1°C
±0.5°C
Number of control types
three: proportional pulse length, proportional pulse frequency and on/off
Number of inputs
Number of set points
Output
one two: high and low
Control: 2 SPDT relays; 6A @ 110 VAC, 250 VAC max
Alarm: 1 SPDT relay; 6A @ 110 VAC, 250 VAC max
Pulse: pulse length (0.5 to 20 pulses per second) or pulse frequency (60 to 120 pulses per minute)
Current: galvanic 0-20/4-20 mA, 600
Ω max load, programmable boundaries
Hysteresis (dead band)
0.1 to 1.0 pH, 10 to 100 mV, or 1 to 10%
Relay delay
Input impedance
0 to 2000 seconds
106 M
Ω
Electrical isolation
yes, galvanically
Electrode use
selectable glass or antimony (use antimony electrodes for systems with hydrofluoric acid content)
pH calibration
Temperature sensor
Password protection
Display
1 or 2 points (pH 1.00, 4.01, 7.00, 9.00 or 10.00) via keypad
100
Ω or 1000
Ω
Platinum RTD, terminal strip two level protection with up to 2/3-digit password lockout; first level gives calibration access, second level allows parameter changes dual-line LCD; 4-digit upper and 3 1 ⁄
2
-digit lower
Housing
Dimensions
IP54 front; 1 ⁄
4
DIN size
3 13 ⁄
16
"W x 3 13 ⁄
16
"H x 6 15 ⁄
16
"D (9.6 x 9.6 x 17.5 cm)
Panel cut-out
3 3 ⁄
8
"W x 3 3 ⁄
8
"H (9.2 x 9.2 cm)
Operating temperature
14 to 140°F (–10 to 60°C)
Weight
1.5 lbs (0.7 kg) unit only; 2.5 lbs (1.2 kg) boxed
11. Accessories
Extra controllers
WD-35200-00 1000 series pH/ORP controller,
120 VAC
WD-35200-05
WD-35100-90
1000 series pH/ORP controller,
220 VAC
Power cord; 3 ft with bare leads,
3 prong U.S. plug, 110 VAC
Semi-domed electrodes
These double-junction electrodes feature a unique surface design that provides protection from particulates while increasing flow across the junction to provide cleaning. Ceramic junction provides toughness along with steady electrolyte flow.
The graphite body probes act as a solution ground and take advantage of the controller’s symmetrical mode (see page 65 for more information).
Sealed
KCl/AgCl reference. Have 10-ft cable, BNC connector, and stripped ends for ATC element.
WD-35807-00
WD-35807-05
WD-35807-10
WD-35807-15
Semi-domed bulb electrode,
epoxy body, 3 ⁄
4
" NPT thread
Semi-domed bulb electrode,
epoxy body, 1" NPT thread
Semi-domed bulb electrode,
graphite body, 3 ⁄
4
" NPT thread
Semi-domed bulb electrode,
graphite body, 1" NPT thread
In-line/submersible electrodes
These permanently encapsulated combination electrodes have a CPVC body and 3 ⁄
4
"
NPT threads on both ends. Install in a tee fitting or on a submersion pipe for tank mounting. Sealed KCl/AgCl reference. Have 10-ft cable, BNC connector, and stripped ends for ATC element.
WD-35801-02
WD-35801-08
WD-35801-21
In-line/submersible pH electrode;
single junction
In-line/submersible pH electrode;
double junction
In-line/submersible ORP electrode;
double junction,
Pt band sensor
Submersible electrodes
These combination electrodes are permanently encapsulated in a 3-ft L x 1"OD ABS pipe—install in a tank. Sealed KCl/AgCl reference. Have 10-ft cable, BNC connector, and stripped ends for ATC element.
WD-35806-00
WD-35806-01
WD-35806-02
Submersible pH electrode;
single junction
Submersible pH electrode;
double junction
Submersible ORP electrode;
double junction, Pt band sensor
11. Accessories, continued
pH Buffer solutions
These buffer solutions are standardized to ±0.01 pH at 25°C. They are labeled with pH vs. Temperature tables to adjust readings for accurate calibration. They are also labeled with the name and CAS number for all ingredients to conform to “Right-to-
Know” requirements, and are supplied with an MSDS (Material Safety Data Sheet).
WD-00654-00
WD-00654-04
WD-00654-08 pH 4.01,
1 pint bottle
pH 7.00,
1 pint bottle
pH 10.00,
1 pint bottle
12. Appendix 1: Advanced set up mode default settings
Type
OFS
SP1
Parameter pH offset
SET C ATC
Temp. offset
SP1
Value
0.00 pH
ATC = ON
0.0°C
4.00 pH
LO/HI trigger LO
Remarks
Zero offset value
Automatic Temperature Compensation
Zero temperature offset set point 1
LO trigger mode
SP2
Hysteresis 0.50 pH
On delay time 0 seconds
Off delay time 0 seconds
SP2 10.00 pH
—
—
— set point 2
Cntr
LO/HI trigger HI
Hysteresis 0.50 pH
On delay time 0 seconds
Off delay time 0 seconds
Control type LCt/tyP
HI trigger mode
—
—
—
On/off control rng
CAL
Relay type mA output
4 mA value
20 mA value dEEn
4-20 mA
2 pH
12 pH
ConF pH/ORP units pH/ASY
Alarm delay 0 seconds
Relay mode
Probe type
StdY
GLAS
Factory default no
Calibration 59.2 mV
Relay de-energized in no alarm condition
—
4 mA corresponds to 2 pH
20 mA corresponds to 4 pH
Asymmetrical pH mode
ALd = alarm delay = 0 seconds
Relay activated mode: steady
Glass electrode
Do not reset to factory default default setting assumes 0 mV offset at
7 pH with 59.2 mV slope
13. Appendix 2: Symmetrical mode
Your controller can operate in asymmetrical or symmetrical mode. See Set Up program 6.7.1 on page 49 for information on selecting the appropriate mode.
Asymmetrical mode
works well in environments with where there is little or no electrical noise. When there is electrical noise, the noise acts as a common signal and is picked up by both the pH and the reference electrodes. However, since the reference electrode is grounded to the ground potential of the amplifier, electrical noise will be present only on the pH electrode. This noise is amplified along with the pH signal, which causes reading fluctuations in an electrically noisy atmosphere.
Electrical noise from a DC source (as in an electroplating tank) will typically result in stable but incorrect values.
Symmetrical mode.
For noisy electrical environments, the 1000 series controllers offer Symmetrical Mode operation. To take advantage of Symmetrical operation,
you must have an electrode with a solution ground (potential matching) pin.
If your electrode does not have a solution ground, be sure to set the controller to
Asymmetrical mode.
Symmetrical mode avoids grounding the reference electrode by reconfiguring the input to a floating differential mode (see diagram below right). The electrical noise appears equally on the pH and reference electrodes, and is therefore rejected by the operational amplifier.
Asymmetrical mode
Symmetrical mode
pH electrode wire pH electrode wire pH pH reference electrode wire
end view of electrode without built-in solution ground
18 19 20 21 22
Pt100/
Pt1000
0V/
PAL S/ solution ground wire reference electrode wire
end view of electrode with built-in solution ground
pH electrode bulb pH electrode bulb solution ground
14. Appendix 3: Jumper positions
Note that there is a fuse internal to the controller. Before opening the unit, ENSURE that the power cable is physically separated from the mains supply. Replace the fuse with the recommended part specified by the manufacturer.
Jumper Positions - Internal to the controller
JP 1 Selects the input voltage 220 VAC. To switch to 110 VAC, use tweezers or needle nose pliers to remove jumper from JP1 pins to JP2 pins.
JP 2
JP 3
Selects the input voltage 110 VAC. To switch to 220 VAC, use tweezers or needle nose pliers to remove jumper from JP2 pins to JP1 pins.
Selects between Pt100 and Pt1000. To switch between Pt 100 and Pt 1000, desolder jumper and resolder jumper in new position as indicated inside controller housing. If you are not equipped to do this, please contact your
OAKTON distributor for further information.
15. Warranty
OAKTON warrants this meter to be free from significant deviations in material and workmanship for a period of one year from date of purchase. OAKTON warrants this probe to be free from significant deviations in material and workmanship for a period of six months from date of purchase. If repair or adjustment is necessary and has not been the result of abuse or misuse within the warrantied time period, please return—freight prepaid—and correction will be made without charge. OAKTON alone will determine if the product problem is due to deviations or customer misuse.
Out-of-warranty products will be repaired on a charge basis.
Rear
FUSE
JP2 JP1
Front
16. Return of items
Authorization must be obtained from our Customer Service Department before returning items for any reason. When applying for authorization, please include data regarding the reason the items are to be returned. For your protection, items must be carefully packed to prevent damage in shipment and insured against possible damage or loss. We will not be responsible for damage resulting from careless or insufficient packing. A restocking charge will be made on all unauthorized returns.
NOTE: We reserve the right to make improvements in design, construction, and appearance of products without notice.
Pt100/Pt1000
JP3
View from the top
17. Index
A
Accessories ........................................62-63
Advanced Set up mode ..................23-57
Entering advanced set up mode......18
Overview ......................................24-25
Viewing advanced set up mode parameters ......................................16
Alarm relay ............................................58
Setting alarm time lag ......................50
Setting steady or pulse contact ........51
Assembly, controller ..........................6-10
Asymmetrical mode ..............................65
ATC on or off, selection ........................29
B
Back panel ................................................8
Break/make contact relay type, selecting ..............................................41
C
Calibration, ORP
Entering calibration mode................17
ORP mV calibration ..........................21
ORP % calibration..............................22
Viewing calibration parameters ......16
Calibration, pH
Entering calibration mode................17
pH calibration ..............................19-20
Viewing calibration parameters ......16
Calibration subgroup, pH ..............54-57
Calibration subgroup, ORP ............54-57
Calibration, temperature ......................30
Configuration subgroup..................48-53
Control diagram, sample setup ............6
Controller off (monitor only) ..............40
Controller wiring ....................................9
Control, manual ....................................60
Control relays....................................33-38
Control type, selecting on/off or proportional ..................................40
Control type subgroup ....................39-43
Current output sub group ..............44-47
D
Dead band ..............................................36
Default settings
Default settings chart ........................64
Reverting to default settings ............53
Dimensions ..............................................7
Display ....................................................13
E
Electrical connections..............................9
Electrode
Determining offset value ..................27
Selecting sensor type ........................52
Setting offset value ............................27
Wiring ..................................................10
F
Factory default settings
Default settings chart ........................64
Reverting to default settings ............53
Frequency, setting ..................................43
H
High relay set point ..............................35
Hysteresis................................................36
I
Installation, controller........................6-10
Introduction ..........................................4-5
K
Keypad ....................................................12
L
LED indicators........................................14
Low relay set point................................35
M
Manual temperature compensation....31
Calibration temperature ..................32
Process temperature ..........................31
Manual control mode............................60
mA output ........................................44-47
Selecting 0-20 or 4-20 mA ................45
Value at 0 (4) mA ..............................46
Value at 20 mA ..................................47
Maximum frequency, setting ..............43
Measurement, pH (ORP) ......................59
Measurement units
(pH or ORP), setting..........................49
Monitor only, controller as ..................40
O
Off-delay time lag ..................................38
Offset sub group (OFS)....................26-27
Offset
Electrode..............................................27
Temperature........................................30
On-delay time lag ..................................37
On/off control ........................................40
ORP
ORP mV calibration ..........................21
ORP % calibration..............................22
ORP units, selecting ..........................49
Output range (4-20/0-20 mA)..............45
Overview of advanced set up mode ..................................24-25
P
Passwords ..............................................15
Period duration, setting ........................43
pH pH calibration ..............................19-20 pH units, selecting ............................49
Probe wiring ..........................................10
Proportional band, setting....................42
Proportional control ..............................40
Pulse contact for alarm relay, setting..55
Pulse frequency control ........................40
Pulse length control ..............................40
R
Recorder output................................44-47
Selecting 0-20 or 4-20 mA ................45
Value at 0 (4) mA ..............................46
Value at 20 mA ..................................47
Relay 1 & 2 subgroup ......................33-38
Relays
Alarm ..................................................58
Setting alarm time lag ..................50
Setting steady or pulse contact ....51
Control ..........................................33-38
Selecting set point values ............34
Setting high or low set point........35
Viewing relay set point values ....16
Resetting controller to default settings ................................................53
Return of items ......................................67
S
Security codes ........................................15
Specifications ..........................................61
Starting up ........................................15-18
Steady contact for alarm relay, setting..55
Symmetrical mode ................................65
T
Temperature calibration........................30
Temperature, manual or automatic ....29
Temperature offset ................................30
Temperature settings (SET °C) ......28-32
U
Units, selecting pH or ORP ..................49
V
Viewing operating parameters ............16
W
Warranty..................................................67
Wiring ..................................................9-10
NOTES

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Key features
- Menu-driven program
- Large dual display LCD
- Two set point, two SPDT relay operation
- Three control modes
- Separate alarm relay
- Separately adjustable high and low set point hysteresis bands
- 0-20/4-20 mA transmitter/recorder output
- Protection against electromagnetic interference
- Push button two-point calibration
- Easy, fast calibration with auto buffer recognition