Milwaukee DL122 Manual instruction

1
DL122 BLACK BOX
DATA LOGGING CONTROLLER
pH/Temperature
Set Up / Operation Manual
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 - TestEquipmentDepot.com

2
DL122 MENU MAP
**Menu**
> Basic Setup
pH DataLog Setup
Last Logged Wi-Fi Settings IDC Setup Exit
**Basic Setup**
>Date & Time
T
emperat
ure
pH Resolution Exit
Date and Time >
05/09/15 Dat
e
9:25 Time Exit
**Basic Setup**
Date & Time >Temperature
pH Resolution Exit
Temperature >Fahrenheit
Celsius Exit
**Basic Setup**
Date & Time Temperature > pH Resolution
Exit
pH Resolution Tenths .0 >Hundredths .00
Thousandths .000
Exit
**pH Menu**
>pH Calibration
pH Probe Diagnostic pH Controller pH Below Alert pH Above Alert
Manual Temp Comp pH Hysteresis Exit
**pH Calibration** 1 Point Calibration >2 Point Calibration
3 Point Calibration
Last Calib./GLP
Exit
**pH Calibration** 1 Point Calibration 2 Point Calibration 3 Point Calibration >Last Calib./GLP
Exit
** Last Calib./GLP** 05/04/15 9:25:36 2 Point Calibration 7.01 & 4.01 Exit
7.01 & 4.01 Calibration “Follow Instructions Given Here” Exit
**Menu**
BasicSetup >pH
Data LogSetup
Last Logged Wi-Fi Settings IDC Setup Exit
**pH Menu**
pH Calibration pH Probe Diagnostic
>pH Controller
pH Below Alert
pH Above Alert Manual Temp Comp pH Hysteresis Exit
*pH Control Setup*
>pH Setpoint **.**
Activate: Below Exit
*pH Control Setup*
pH Setpoint **.**
>Activate: Below Exit
*pH Control Setup*
>Activate: Below
Exit
**pHMenu**
pH Calibration pH Probe Diagnostic pH Controller >pH Below Alert
pH Above Alert Manual Temp Comp pH Hysteresis Exit
*pH Below Alert*
>pH Caution **.**
pH Critical **.** Exit
*pH Above Alert*
>pH Caution **.**
pH Critical **.** Exit
*pH Above Alert*
>pH Caution **.**
Exit
*pH Below Alert*
>pH Caution **.**
Exit
**pH Menu**
pH Calibration >
pH Probe Diagnostic
pH Controller
pH Below Alert pH Above Alert Manual Temp Comp pH Hysteresis Exit
**pHMenu**
pH Calibration pH Probe Diagnostic pH Controller pH Below Alert >pH Above Alert
Manual Temp Comp pH Hysteresis Exit
**Menu**
Basic Setup pH >DataLog Setup Last Logged Wi-Fi Settings IDC Setup Exit
*Data Logger*
>Set Time Interval
Start Time Exit
Set Time Interval
xx:xx:xx
*Data Logger*
Set Time Interval
>Start Time
Exit
Set Start Time
xx:xx:xx
**pHMenu**
pH Calibration pH Probe Diagnostic pH Controller >
pH Below Alert
pH Above Alert
Manual Temp Comp pH Hysteresis Exit
*Manual Temperature*
Compensation
078.00º F
*pH Hysteresis*
0.500 0.100 0.050 0.005 Exit
**pHMenu**
pH Calibration pH Probe Diagnostic pH Controller pH Below Alert pH Above Alert Manual Temp Comp pH Hysteresis Exit
>
**Probe Diagnostic**
“Follow Instructions Given Here”
**Menu**
Basic Setup pH Data Log Setup Last Logged > Wi-Fi Settings
IDC Setup
Exit
**Menu**
Basic Setup pH Data Log Setup >Last Logged
Wi-Fi Settings IDC Setup Exit
**Last Logged**
01/05/16 08:06:07
pH: 7.00
Temperature: 22.56º C
**Wi-Fi Settings**
>Wi-Fi Enable
Security Type Network Name/SSID Pre-shared Key View Device IP Upload Interval Portal Sync Portal Service Exit
**Wi-Fi Enable**
> Enable
Disable
**Wi-Fi Settings**
Wi-Fi Enable >Security Type
Network Name/SSID Pre-shared Key View Device IP Upload Interval Portal Sync Portal Service Exit
**Wi-Fi Security**
Open WEP >WPA
Exit
**Wi-Fi Settings**
Wi-Fi Enable Security Type
>Network Name/SSID
Pre-shared Key View DeviceIP
Upload Interval Portal Sync Portal Service Exit
Network Name
XXXXXXXXXXXXX
**Wi-Fi Settings**
Wi-Fi Enable Security Type Network Name/SSID
>Pre-shared Key
View DeviceIP Upload Interval
Portal Sync Portal Service Exit
Network Password
XXXXXXXXXXXXX
**Wi-Fi Settings**
Wi-Fi Enable Security Type Network Name/SSID
Pre-shared Key
>View DeviceIP
Upload Interval
Portal Sync Portal Service Exit
Device IP Address IP: 196.162.3.*** MAC: 18fe351e79cd Exit
**Wi-Fi Settings**
Wi-Fi Enable Security Type Network Name/SSID
Pre-shared Key
View DeviceIP >Upload Interval
Portal Sync Portal Service Exit
**Wi-Fi Settings**
Wi-Fi Enable Security Type Network Name/SSID
Pre-shared Key
View DeviceIP Upload Interval
>Portal Sync
Portal Service Exit
Set Upload Interval
05 minutes
Portal Sync
**Wi-Fi Settings**
Wi-Fi Enable Security Type Network Name/SSID
Pre-shared Key
View DeviceIP Upload Interval
>
Portal Sync
Portal Service Exit
Do Not Enter
Any Data
**IDC Setup**
>Days to Dose
Sessions/Day Session Time Start Time End Time Exit
Days to Dose:
MT W T F SS
**Menu**
Basic Setup pH DataLog Setup Last Logged Wi-Fi Settings >IDCSetup
Exit
**IDC Setup**
Days to Dose >Sessions/Day
Session Time Start Time End Time Exit
**IDC Setup**
Days to Dose Sessions/Day >Session Time
Start Time End Time Exit
**IDC Setup**
Days to Dose Sessions/Day Session Time >Start Time
End Time Exit
Sessions/Day:
XXX
Session Duration:
00:00:00
Start Time:
00:00
**IDC Setup**
Days to Dose Sessions/Day Session Time >
Start Time
End Time Exit
EndTime:
00:00
**IDC Setup Menu****IDC Setup Menu****IDC Setup Menu****IDC Setup Menu****IDC Setup Menu**
Incremental Dosing Control, IDC, is totally independent of pH control functions

1
Please make sure you have all the components
listed below. If not, call your dealer.
• DL122 Data Logging Controller
• Controller Power Box with pH outlet and IDC outlet
• #MA911B/2 pH probe with 2m cable
• #RJ11 temperature probe with 3m cable
• 9VDC power supply
• 4GB SD card
• RJ45 power cable
• International power supply kit
DL122 Quick-Start Hardware Setup
1) Plug the pH probe into the BNC connector on the controller.
2) Insert the 4GB SD card (included), printed side down, making
certain that it snaps into place.
3) Connect RJ11 temperature probe.
4) Connect one end of RJ45 power cable to the DL122 unit; the
other end to the Controller power box. To avoid“accidental”
dosing, you will not be plugging the Controller power box into
a power supply until the settings for pH have been entered and
saved.
5) Connect 9VDC power supply into unit rst, then plug into
120VAC wall outlet.
Note: To enable Wi-Fi, you will need to know your Wi-Fi network
Security Type, Name, and Password.
Milwaukee Instruments, designer and manufacturer of the
DL122, recommends you read this manual from start-to-
nish, without skipping sections. Many of the instructions in
later sections are based on knowledge you will acquire in the
earlier sections of this manual.
Getting to know the DL122
Once you have connected all the cords, inserted the SD card, and
plugged the DL122 into a wall socket, please read this section,
taking a few moments to learn about the screen and keypad.
Note there is no ON/OFF switch; the unit is ON as soon as it is
plugged in. The only way to deactivate the unit is to unplug it.
Recorded data on the SD card will remain intact when the unit is
unplugged.
THE SCREEN When the unit is rst powered up, you will see a
WELCOME message. In a few seconds, the unit will automatically
switch to the primary display screen. This screen gives the date,
time, and real-time readings of pH and Temperature. If activated,
the word Wi-Fi will appear in the upper right corner. Unless you
are changing settings, this is the screen that should always be
displaying.
Primary Display Screen
If temperature probe is plugged in, ATC (Automatic Temperature
Compensation) will appear in the lower right portion of screen.
If not, MTC (Manual Temperature Compensation) will display.
On the menu screens, only four lines will be visible at a time.
To see more options, scroll the list by using up/down arrows
on the keypad. When the cursor (>) appears beside the
appropriate function or setting, press SELECT.
THE KEYPAD Pressing the Menu button brings up a screen
featuring the full menu. At the bottom of all menu screens,
there will be an“Exit” option. The “Exit” option, when selected,
takes you back to the previous screen you were viewing. For
informational screens, there is no “Exit”option. Press SELECT to
return to previous screen.
Pressing the Menu button takes you all the way back to the
primary display screen, bypassing other screens you may have
used. Pressing the Menu button also allows you to toggle
between the primary display screen and the full menu screen.
The left/right arrows ( )allow you to move the blinking cursor
horizontally through a line of settings to the numbers you want
to reset, while the up/down arrows ( )allow you to move
through the function listings and numbers, and toggle between
yes/no options. When new settings are entered, press SELECT,
there will be a short pause and the screen will read SAVED! In just
a moment, the unit will revert to the previous screen.
The Lights button allows you to turn o the screen and status
lights (lights to the left and right of screen, behind grills). The
unit is still functional when lights are o. Pressing Lights again
will reactivate all lights.
IMPORTANT: When in the Lights OFF mode, the status lights
(caution and critical) will not activate on the unit; however,
since the unit is still operational, it will continue to log data
and, if web portal is activated, send text or email alerts, or
both. The only way to turn o data logging and the alerts
system is to unplug the unit.
The Snap Shot button allows you to instantly log a real-time
reading on both the SD card and the portal. A snap shot will
not interfere with scheduled data logging. When you press the
Snap Shot button on the keypad,“Snap Shot” will appear for a
few seconds in the lower right corner of the screen, indicating
the real-time data has been logged.
11/30/15 11:45 Wi-Fi
pH: 7.10
Temp: 22.56ºC ATC
Wi-Fi will display
here, if enabled.
ATC or MTC will
display here.

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Getting Started with Basic Setup
This is a very important step, allowing you to enter
the correct Date and Time, select Fahrenheit or Celsius
Temperature readings, and calibrate for pH.
This unit comes with factory presets, but before using you must
reset to meet your specic requirements. If you ever wish to
revert to factory settings (a factory reset), simply unplug unit,
then plug back in while holding the Lights button down for 3
seconds.
Breadcrumbs, or the navigation path, shown at the beginning
of each section of this manual, will take you from the Menu
screen to the screen where you will be entering changes.
Setting Date and Time
Menu Button>Basic Setup>Date and Time
1) Press the Menu button on the keypad and the full menu will
appear on screen.
2) The cursor appears beside the rst option on each new
screen, and since“Basic Setup” is the rst option listed, you can
press the SELECT button on the keypad.
Please note that the Full Menu lists seven options, but only three
will be visible on the screen. To see other options, scroll with the
down arrow to bring other options into view.
3) The **Basic Setup** screen will appear and the cursor will be
beside the rst option, which is “Date and Time.” Press SELECT.
4) The “Date and Time” screen will now appear. Both the date
and the time will be shown, but they may not be correct.
5) To change the date, make sure cursor is beside the Date line
and press SELECT.
6) To set the “Date,” use the left/right arrows on the keypad to
move the blinking cursor through the line. Be sure to skip over
slashes. Use the up/down arrows to nd the correct numbers
for the month, day, and year. Once you have set all numbers to
match today’s date, press the SELECT button and the SAVED!
screen should appear for a few moments. It will then go back to
the “Date and Time” screen.
7) Now you are ready to set the “Time.” Scroll down to the next
option, which is Time. Press SELECT.
8) Again, work across the Hours:Minutes (00:00) using left/right
arrows, picking the number you want to change, then using
up/down arrows to select the appropriate number.
Note that this unit displays in military time (24-hour); there is
no am/pm option, that is, 9AM is 09:00 and 2:05PM is 14:05.
10:30PM is 22:30.
9) Once complete, press SELECT to enter the new time. A
screen will appear indicating that your change has been SAVED!
10) Scroll to“Exit” and press SELECT to return to **Basic
Setup** screen, or press the Menu button to return to the
primary display screen.
Important: When utilizing portal, date on controller and portal
dashboard must be the same, and times should be set as close
as possible (within ten minutes).
Setting Temperature – Fahrenheit or Celsius
Menu Button>Basic Setup>Temperature
Work your way to the“Temperature” screen and, using
up/down arrows, select Fahrenheit or Celsius, then press
SELECT. The SAVED! screen will appear, then go back to the
“Temperature” screen. Scroll to “Exit”and press SELECT to
return to **Basic Setup** screen, or press the Menu button to
return to the primary display screen.
Setting “pH Resolution” – Tenths,
Hundredths, or Thousandths
Menu Button>Basic Setup>pH Resolution
On the “pH Resolution” screen, use up/down arrows to select
tenths, hundredths, or thousandths, and press SELECT. The
SAVED! screen will appear, then go back to the “pH Resolution”
screen. Scroll to“Exit” and press SELECT to return to **Basic
Setup** screen, or press the Menu button to return to the
primary display screen.
This completes the Basic Setup of your DL122.
******************************************
Setting Up for pH Readings
The **pH Menu**, as shown below:
• allows you to set for 1, 2, or 3 point calibration
• allows you to check the last calibration – date, time,
number of points, and which points
• provides pH probe diagnostic
• allows you to establish a pH setpoint along with caution
and critical alerts for “out of parameter”readings
**pH Menu**
> pH Calibration
pH Probe Diagnostic
pH Controller
pH Below Alert
pH Above Alert
Manual Temp. Comp.
pH Hysteresis
Exit
** Menu **
> Basic Setup
pH
Data Log Setup
Last Logged
Wi-Fi Settings
IDC Setup
Exit
Please be sure to read Getting to Know the DL122, previous page, before beginning Basic Setup.

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Replace
Probe
Clean
Probe
Acceptable Slope
Performance
Probe
Clean
Probe
Replace
Probe
Setting Calibration Points
Menu Button>pH>pH Calibration
Before selecting calibration point(s), you may want to review the
**Last Calib./GLP** screen. Scroll down to the “Last Calib./GLP” option
and press SELECT. (Menu Button>pH>pH Calibration>Last Calib./
GLP) The **Last Calib./GLP** screen will then give you the date and
time of the last calibration; indicate 1, 2, or 3 point calibration; and
give you the calibration points, as shown below.
In accordance with GLP (Good Laboratory Practices), you can
scroll down on this screen to view Acid Slope and Base Slope
once calibration is complete.
1) On **pH Calibration** screen, select 1, 2, or 3 point calibration.
2) Depending on your selection, the **1 Pt Calibration**,
**2 Pt Calibration**, or **3 Pt Calibration** screen will appear.
Each of these screens lists the calibration points - various
combinations of 4.01, 7.01, and 10.01. Place the cursor beside
your desired point or combination of points and press SELECT.
As an example, if you select 2 Point Calibration, a new screen
will appear listing 7.01 & 4.01 Calib and 7.01 & 10.01 Calib. If
you SELECT 7.01 & 4.01 Calib, another screen will appear which
will take you through the calibration process.
•You will be instructed to “Place probe in 7.01 calibration
solution. Press Select.”
•A “Please Wait...” message will appear on screen.
•Once the probe calibrates in the 7.01 solution, you will then
be instructed to “Place probe in 4.01 calibration solution.
Press Select.”
•Once the probe has calibrated in the 4.01 solution,
calibration is complete.
Using Acid/Base Slopes
to Assess pH Probe Performance
In addition to displaying date, time, number of calibration
points and specic points, the **Last Calib./GLP** screen
provides readings for Acid Slope and Base Slope. Slopes are
given as percentages and tell you how closely your freshly
calibrated pH probe is reading as compared with an “ideal”
probe.
A new probe can get very close to “ideal”probe readings, but
with aging and coating becomes less accurate. The following
graph shows the acceptable range and indicates what should
be done if the reading falls outside this range. If your probe is
good in one range (acid or base), but bad in the other, it should
be replaced.
90% 95% 102% 105%
A 3-point calibration will always give you an acid and a
base slope: however, when using 1- or 2-point calibration,
depending on points chosen, you may get an acid OR a base
slope reading. In this case, the other reading will show as a
default 99.9.
pH Probe Diagnostic
Menu Button>pH>pH Probe Diagnostic
pH probes have a limited lifetime and must be replaced
periodically to maintain accurate readings. If you suspect
incorrect readings, work your way to the pH Probe Diagnostic
screen. Press SELECT. Follow instructions on the screen and
the unit will run a diagnostic test, then a message will appear
on the screen, such as“Probe or solution is bad!” Replace
your solution, run diagnostic again, and if you get the same
message, replace the probe.
Setting up the pH Controller
The purpose of a pH controller is to constantly monitor the pH
level of a solution and to activate a dosing device when the
level strays from the setpoint. In most situations, pH levels tend
to stray either up or down, too alkaline or too acidic, but not in
both directions. The DL122 may be set to detect readings either
ABOVE or BELOW the setpoint.
This requires two settings:
• the setpoint, and
• whether the controller activates the device when the
reading goes ABOVE the setpoint or BELOW the
setpoint
Setting the pH Setpoint & Activation (Below
or Above)
Menu Button>pH>pH Controller
1) Using the breadcrumbs above, work your way to the *pH
Control Setup* screen.
2) The cursor should be at “pH Setpoint: **.**”. If a pH setpoint
has previously been set, it will appear on the screen. If this is
the setpoint you want to keep, you can“Exit” the screen or
press the Menu button to return to the primary display screen.
3) If, instead, you want to enter a new setpoint, press SELECT.
4) On the new screen, using the keypad arrows, select your
desired pH setpoint and press SELECT.
5) The SAVED! screen will appear for a few moments and the
*pH Control Setup* screen will reappear. Now scroll to the
“Activate” line and press SELECT.
6) This screen allows you to set the activation for Below or
Above. Make your selection using the up or down arrows on
the keypad, press SELECT and the SAVED! screen will appear.
Setting the pH Alerts (Caution and Critical)
The DL122 is designed to eciently monitor and maintain the
pH value of a solution. If the pH level strays from the setpoint, the
** Last Calib./GLP **
O5/04/15 9:25
2 Point Calibration
7.01 & 4.01
Acid Slope: 000.0
Base Slope: 000.0
>Exit

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status lights located beside the screen will change color.
In addition, if you have enabled Wi-Fi and subscribe to the
interface portal, the unit will send out your choice of emails or
text messages, or both, to notify you of alerts. See“Setting up
Wi-Fi”section for details on connecting to the interface portal.
In the next instructions, you will learn how to set pH values to
activate Caution and Critical Alerts. A Caution is intended to
alert you when the pH value has deviated too far from your
setpoint. A Critical alert is to let you know that the pH value has
deviated even further and you have a serious problem needing
immediate attention.
It is your responsibility to set the pH alert parameters for your
specic requirements. This is a balancing act and may require
some experimentation on your part. You do not want the pH value
to drift too far from your setpoint without an alert, but you also
don’t want the DL122 to be sending you alerts too frequently.
For most applications, Milwaukee Instruments recommends
a minimum .7 dierence between the setpoint and a Caution
alert; and a minimum 1.4 dierence between the setpoint and
a Critical alert. See the diagram below.
5.60 6.30 7.00 7.70 8.40
Critical Caution Setpoint Caution Critical
Red | Lime | Blue | Lime | Red
Below Alert Above Alert
If the value for pH is within the Caution parameters you have set,
the status lights on both sides of the screen will remain blue.
If the blue changes to lime, this signals that the value has
reached the Caution level. If the reading continues to drift
further from the setpoint and reaches the Critical level, the lime
lights will turn red, indicating a critical condition.
Setting pH Below Alerts (Caution & Critical)
Menu Button>pH>pH Below Alert
1) Work your way to the *pH Below Alert* screen. You will see
two options: “pH Caution” and “pH Critical.” If the settings shown
beside each are the desired settings, you may “Exit”the screen.
2) If you want to change the Caution setting, place the cursor
beside “pH Caution” and press SELECT.
3) On this screen, use the keypad arrows to create the new
setting, and press SELECT. The SAVED! screen will appear and
you will be taken back to the *pH Below Alert* screen.
4) Move the cursor to the“pH Critical”option; press SELECT,
then enter the new setting.
5) Press SELECT and you have completed the setup for the pH
Below Alerts. Scroll down and select “Exit”to go back to **pH
Menu** screen or press Menu button to go back to primary
display screen.
Setting pH Above Alerts (Caution & Critical)
Menu Button>pH>pH Above Alert
1) Work your way to the *pH Above Alert* screen. You will see
two options: “pH Caution” and “pH Critical.” If the settings shown
beside each are the desired settings, you may “Exit”the screen.
2) If you want to change the Caution setting, place the cursor
beside “pH Caution” and press SELECT.
3) On this screen, use the keypad arrows to create the new
setting, and press SELECT. The SAVED! screen will appear and
you will be taken back to the *pH Above Alert* screen.
4) Move the cursor to the“pH Critical”option; press SELECT,
then enter the new setting.
5) Press SELECT and you have completed the setup for the pH
Above Alerts. Scroll down and select“Exit” to go back to **pH
Menu** screen or press Menu button to go back to primary
display screen.
IMPORTANT: When pH settings have been entered and
saved, plug the controller power box into a 120VAC wall
socket or power supply. Note that pH devices to be controlled
by pH value readings must be plugged into the top socket.
IDC devices must be plugged into the bottom socket. The
red indicator lights beside the pH and IDC sockets, labeled
“Activated,”let you know when the sockets are providing
power to the devices.
Setting Manual Temperature
Compensation
Menu Button>pH>Manual Temp. Comp.
Work your way to the *Manual Temperature Compensation*
screen. Using left/right arrows to scroll blinking cursor through
temperature and up/down arrows to change numbers, enter
the temperature of your solution, being sure to note if it is set
for Fahrenheit or Celsius scale. When complete, press SELECT
and the SAVED! screen will appear.
When manual temperature compensation has been set, MRC will
appear in the lower right corner of the primary display screen.
Setting pH Hysteresis
Menu Button>pH>pH Hysteresis
To prevent excessive on/o cycling of dosing devices, the“pH
Hysteresis” feature allows you to customize the lag (delay)
in device activation. Without hysteresis, your controller will
attempt to correct even the slightest variation in pH value and
will be cycling on and o almost continuously.
On the **pH Hysteresis** screen, you may select from four pH
options: 0.500, 0.100, 0.050, and 0.005. Place the cursor beside
your selection, press SELECT and the SAVED! screen will
appear. The default setting for this unit is pH 0.050.
As an example, if your setpoint is 6.5 (Set for ABOVE) and you set
hysteresis at 0.050, then the controller will activate your dosing
device when the pH value reaches 6.550 and will continue dosing
until the pH value returns to 6.450.
Setting up the Data Logger
(Time Interval & Start Time)
Please note that if you remove the SD card when the unit is ON,
the unit will remain operational. However, before re-inserting
the SD card, disconnect the unit from its power source. Once

5
you have the SD card snapped back in place, restore power
to the unit. If you re-insert the SD card while the unit is
operational, you must still momentarily disconnect from power,
then reconnect, allowing the unit to properly communicate
with the SD Card.
Also note that the internal SD card is xed at two-minute
logging intervals. The following instructions refer to the portal
only.
Example of Logged Data on SD Card
Menu Button>Data Log Setup>Data Logger
1) Work your way to the **Data Logger** screen. The cursor will
appear beside “Set Time Interval.” Press SELECT.
2) On the “Set time interval”screen, using the keypad
arrows, enter the amount of time between logs, in Hours:
Minutes:Seconds (00:00:00). Logging is restricted to a 5-minute
minimum upload interval (except for Snap Shots); however,
Milwaukee Instruments recommends a wider interval,
typically 00:10:00 to 00:15:00. For most applications, this 10- to
15-minute interval is frequent enough to gather meaningful
data without collecting too much data, which can often make
evaluation cumbersome.
3) Press SELECT to save this interval. Screen will read SAVED!
and go back to the **Data Logger** screen with the cursor
beside “Start Time.”
4) Press SELECT to advance to the Start Time screen. Using the
keypad arrows, enter the start time and press SELECT to save.
5) Press the Menu button to return to the primary display screen.
Note: To capture a real-time reading, press the Snap Shot button.
A snap shot will not interfere with scheduled data logging. When
you press the Snap Shot button on the keypad, “Snap Shot”will
appear for a few seconds in the lower right corner of the screen,
indicating the real-time data has been logged.
Checking Last Logged Screen
Place cursor beside“Last Logged”and press SELECT. The **Last
Logged** screen will appear. Press Menu button to return to
primary display screen.
Setting up Wi-Fi
In addition to displaying real-time data, the Wi-Fi and portal
provide email and text alerts, store redundant data, and oer
remote control of unit.
Use of Wi-Fi and portal is optional; it is not required. Not utilizing
the portal will not aect operation of the unit.
Your DL Controller is set up to transmit in the 2.4GHz frequency
range only. If you are using a wireless router with two or more
channels, please be sure to enter the “Network Name / SSID”that
will access the 2.4GHz frequency channel only. The unit will not
communicate at 5.0GHz.
Before beginning Wi-Fi setup, make sure you have the following:
• Wi-Fi Network Security Type (Open, WEP, or WPA)
• Wi-Fi Name, and
• Wi-Fi Password
IMPORTANT: Although“Wi-Fi Enable” is the rst option listed,
you should enter all Wi-Fi information with the unit in Wi-Fi
Disabled mode. Enable Wi-Fi as the last step, otherwise the unit
may begin uploading information before you nish entering it.
Menu Button>Wi-Fi Settings>Wi-Fi Enable
1) Work your way to the **Wi-Fi Enable** screen.
2) On the **Wi-Fi Enable** screen, place cursor beside“Enable”
and press SELECT.
3) Use the same procedure to Disable Wi-Fi.
Menu Button>Wi-Fi Settings>Security Type
1) Work your way to the **Wi-Fi Security** screen and press
SELECT.
2) On the **Wi-Fi Security** screen, you will have the following
options: Open, WEP, and WPA. WPA is the most common. Place
cursor beside the appropriate security type and press SELECT.
Menu Button>Wi-Fi Settings>Network Name/SSID
(Remember to use 2.4 GHz only)
1) Work your way to the“Network Name/SSID” screen and press
SELECT.
2) When the“Network Name/SSID” screen opens, ll in your Wi-
Fi name using the keypad arrows, and press SELECT.
Menu Button>Wi-Fi Settings>Pre-shared Key (Password)
1) Work your way to the **Pre-shared Key** screen and press
SELECT.
2) When the screen opens, the heading will read “Network
Password.”
3) Fill in your Wi-Fi password using the keypad arrows, and
press SELECT.
** Last Logged **
01/05/16 08:06:07
pH: 7.105
Temperature: 77.56º F
** Wi-Fi Settings **
> Wi-Fi Enable
Security Type
Network Name/SSID
Pre-shared Key
View Device IP
Upload Interval
Portal Sync
Portal Service
Exit
Date Time pH Temperature

6
Menu Button>Wi-Fi Settings>View Device IP
When Wi-Fi is set up and you have logged in, you will be able to
view the Device IP and MAC Addresses.
Menu Button>Wi-Fi Settings>Upload Interval
This screen will show upload interval, that is, how often the
DL122 sends new information to the portal. Five minutes is the
minimum upload interval.
Menu Button>Wi-Fi Settings>Portal Sync
Menu Button>Wi-Fi Settings>Portal Service
IMPORTANT: Do not open the Portal Service screen unless
you are instructed to do so by Milwaukee Instruments. If you
accidentally open this screen, press MENU to back out. Do NOT
enter any data! Doing so will permanently disconnect you
from the portal.
Setting up the Incremental
Dosing Control (IDC)
The Incremental Dosing Control oers precision on/o switching
of pumps, lights, and other devices. (It’s a little sophisticated for
your coee maker, but it’ll work.) It can be programmed for 1 to
7 days of the week with Start/End times each day and up to 999
timed-duration sessions per day. The controller function and IDC
are completely independent of each other.
Menu Button>IDC Setup>Days to Dose
1) Press Menu button, scroll down to **IDC Setup**, and press
SELECT.
2) The **IDC Setup** screen allows you to accurately schedule
precision dosing and includes a ow calibration feature.
Begin by placing the cursor beside“Days to Dose,”press SELECT.
3) Use the left/right arrows (<>) to move the blinking cursor
across the days of the week. On each day, use the up/down
arrows to toggle the day ON or OFF. The presence of an“X”
indicates that power will be supplied to a dosing device (or any
other device) on that day.
4) Once you have completed selection of days, press SELECT
and this information will be SAVED!
Menu Button>IDC Setup>Sessions/Day
The DL122 will space sessions evenly over the available time
(Start Time to End Time) on each day.
1) Press Menu button, scroll down to **IDC Setup**, and press
SELECT.
2) Place cursor beside Sessions/Day and press SELECT.
3) Use the left/right arrows (<>) to move the blinking cursor
across the three digits. In each place, use the up/down arrows
to select a number. Once you have entered the appropriate
number of sessions per day (up to 999), press SELECT and this
information will be SAVED!
4) Based on Start/End times and Session Time you have
programmed, if you attempt to enter a number of sessions that
will not t into the time that is available, the message on your
screen will read:“Please enter a valid number of sessions per
day.”You will need to enter a lower number of Sessions Per Day
or make adjustments in Start/End times and/or Session Time.
Menu Button>IDC Setup>Session Time
Session Time is the length of time (duration) that your device
will be turned on. All session times must be the same length.
1) Press Menu button, scroll down to **IDC Setup**, and press
SELECT.
2) Place cursor beside Session Time and press SELECT.
3) Use the left/right arrows to move the blinking cursor across
the time, shown in Hours:Minutes:Seconds (00:00:00). Use the
up/down arrows to select numbers. Once you have entered the
appropriate duration of EACH dosing session, press SELECT
and the SAVED! screen will appear. All session times must be
the same.
4) Based on Start/End times and Sessions/Day you have
programmed, if you attempt to enter a session time that will
not t into the time that is available, the message on your
screen with read:“Please enter a valid session time.”You will
need to enter a shorter session time or make adjustments in
Start/End times and/or Sessions/Day
Menu Button>IDC Setup>Start Time
1) Press Menu button, scroll down to **IDC Setup**, and press
SELECT.
2) Place cursor beside“Start Time”and press SELECT.
3) Use the left/right arrows to move the blinking cursor across
the start time and up/down arrows to select appropriate
numbers. When complete, press SELECT and the SAVED! screen
will appear. Note that the DL122 uses military (24-hour) time.
A start time of 2:30PM would be entered as 14:30. Default Start
Time is 00:00.
4) If you attempt to enter Start/End times that do not allow
sucient time for Sessions/Day and Session Time you have
programmed, the message on your screen will read:“Please
enter valid Start and End Times.”You will need to add more time
between Start and End Times, if possible, or make adjustments
in Session Time and/or Sessions/Day.
Menu Button>IDC Setup>End Time
1) Press Menu button, scroll down to **IDC Setup**, and press
SELECT.
2) Place cursor beside“End Time”and press SELECT.
3) Use the left/right arrows to move the blinking cursor across
the end time and up/down arrows to select appropriate
numbers. When complete, press SELECT and the Saved! screen
will appear. Default End Time is 23:59.
The unit will not accept an End Time that precedes a Start Time,
and Start/End Times must fall within a single day.
4) If you attempt to enter Start/End times that do not allow
** IDC Setup **
> Days to Dose
Sessions/Day
Session Time
Start Time
End Time
Flow Calibration
Exit

7
sucient time for Sessions/Day and Session Time you have
programmed, the message on your screen will read:“Please
enter valid Start and End Times.”You will need to add more time
between Start and End Times, if possible, or make adjustments
in Session Time and/or Sessions/Day.
Menu Button>IDC Setup>Flow Calibration
When utilizing the IDC to dispense a solution, you must
determine how long your pump needs to be on to provide
a given volume of solution. Since pump eciency, solution
strength and viscosity, tubing diameter, and many other factors
play a role in how long your pump should run, the DL122 is
equipped with a ow calibration feature.
1) Press Menu button, scroll down to **IDC Setup**, and press
SELECT.
2) Place cursor beside“Flow Calibration”and press SELECT.
3) Be sure the cursor is beside START. Using a container of
appropriate size (or one marked with an appropriate ll level),
place the tube from the pump into the container and begin
lling the container by pressing SELECT. The display will serve
as a stopwatch, recording minutes and seconds (00:00).
4) Scroll the cursor down to STOP and when the solution
reaches the ll mark, press SELECT.
5) Write down this number and plug it into the IDC Session
Time screen.

8

9

10
Manufactured/Assembled
in the USA
Range .001 pH to 14.000 pH
Resolution - User Select Tenths (0.1 pH); Hundredths (0.01 pH); Thousandths (0.001) pH
Accuracy @ 77°F 0.02 pH
Setpoint Range Full pH scale 0.01 pH to 14.00 pH
Activation Parameter User Select above or below activation setpoint
Visual Alerts LED backlight blue = normal; lime = caution; red = critical
Probe Protection On Master Board GLP chipset ( Ground Loop Preventer )
Circuit Board Protection On Master Board RJ45 Backfeed Prevention Chipset
Operational Environment 15°F to 180°F (-10°C to 85°C)
Temperature Accuracy 0.5°F
Power Supply International Plug Set - No converter needed
pH Electrode MA911B/2
RJ45 Cable 7-foot RJ45 provided -- Optional up to 50 feet
Controller Power Box 1 socket for pH dosing or CO2solenoid control & 1 socket for IDC
Main Board Atmel SAM3X8E ARM Cortex-M3 CPU
Operating Voltage 3.3 volts
Clock Speed 84 MHz clock
S Ram 96 KBytes of SRAM (two banks: 64KB and 32KB)
Flash Memory 512 KB
Data Retention 100 years at 25° C
Station and Access Point, Wi-Fi 802.11 b/g/n Roles with Integrated Radio, Baseband, and MAC
TCP/IP Embedded TCP/IP stack
Circuit Board Protection RJ45 Back Feed Protection with Short Circuit Protection
GLP (Ground Loop Prevention) Dual Ground Loop Prevention Circuit and Chipset
Input Power Supply 7V to 12VDC Recommended --- International Plug Set - No Converter needed
Input Min. & Max. 6V to 20VDC
Logic Load Shifter Provides Higher LCD Screen Resolution and Fast Response Time
Controller Power Max Capacity @ 110VAC or 220VAC, 10 amps / 1000 watts
Relay Response Time is 20ms
Free-wheeling Diode Protection
Universal Plug -- No Converter Necessary
Red LED Light Indicates Socket is Active and Power is On
One Socket Powers pH Device; the Other Powers IDC Device
Communication to Master Controller Through RJ45 up to Maximum Distance of 50 Feet
DL122 BLACK BOX SPECIFICATIONS
CONTROLLER POWER BOX
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 - TestEquipmentDepot.com