In-situ Partech 228531 User manual

2022-01-18 | 0046360
Operator’s Manual
750w² Monitor

2
Contents
Getting Started....................................................................................................................................................................................... 4
Sensor Calibration................................................................................................................................................................................. 5
Suspended Solids Sensor - Zero Calibration........................................................................................................................ 5
Suspended Solids Sensor - Set Measurement Range (Set Cal)...................................................................................... 5
Suspended Solids Sensor - Take Sample for Calibration.................................................................................................. 6
Sample Result (Turbidity/Suspended Solids Sensors)...................................................................................................... 7
Dissolved Oxygen Sensor - 100% Open Air Calibration................................................................................................... 7
Introduction to the 750w2Monitor................................................................................................................................................. 8
General............................................................................................................................................................................................... 8
Display................................................................................................................................................................................................ 8
Keypad............................................................................................................................................................................................... 8
Sensors............................................................................................................................................................................................... 8
Manual Conventions..................................................................................................................................................................... 8
Basic Operation....................................................................................................................................................................................10
Power On/O.................................................................................................................................................................................10
Measure Mode ..............................................................................................................................................................................10
Conguration Structure....................................................................................................................................................................11
Menu Mode....................................................................................................................................................................................11
Conguration – Use of Keys .....................................................................................................................................................11
Monitor Conguration ......................................................................................................................................................................12
Bleeper Menu Option.................................................................................................................................................................12
Backlight Menu Option..............................................................................................................................................................12
Contrast Menu Option ...............................................................................................................................................................12
Auto Shutdown Menu Option.................................................................................................................................................13
Enable Service Mode Menu Option ......................................................................................................................................13
Set Date and Time Menu ..........................................................................................................................................................13
Option..............................................................................................................................................................................................13
Site Management................................................................................................................................................................................14

3
Introduction...................................................................................................................................................................................14
Add a Site........................................................................................................................................................................................14
Delete a Site...................................................................................................................................................................................14
Edit a Site Name............................................................................................................................................................................15
Sensors with more than one active site...............................................................................................................................15
Measurement Conguration...........................................................................................................................................................16
Title Menu Options......................................................................................................................................................................16
Units Menu Options....................................................................................................................................................................16
Recorded Data......................................................................................................................................................................................17
Data Via USB...................................................................................................................................................................................17
Monitor Conguration ......................................................................................................................................................................18
Auto Shutdown Menu Option.................................................................................................................................................18
Enable Service Mode ..................................................................................................................................................................18
Menu Option .................................................................................................................................................................................18
Set Date and Time Menu Option............................................................................................................................................18
Battery Charging .................................................................................................................................................................................19
Battery..............................................................................................................................................................................................19
Charger ............................................................................................................................................................................................19
Firmware Updates...............................................................................................................................................................................20
Introduction...................................................................................................................................................................................20
Updating Firmware......................................................................................................................................................................20
Technical Support ...............................................................................................................................................................................21
Returning Equipment for Repair ............................................................................................................................................21
Technical Specications....................................................................................................................................................................23
Spare Parts......................................................................................................................................................................................23
Sensor Specications.........................................................................................................................................................................24
IR Sensor - Physical Specications .........................................................................................................................................24
IR Sensor - Environmental Data ..............................................................................................................................................24
RDO Sensor Specications........................................................................................................................................................24
Declaration of Conformity ...............................................................................................................................................................25

1 Connect the sensor.
4 Charge as needed.
Plug the sensor into the port on the right-hand
side of the 750w2 Monitor.
Press the Menu button and use the arrow keys
to access menu options.
Connect a charging cable to the left port
when necessary.
Press the On/Off button if the monitor isn’t
already displaying a reading.
Calibrate by sensor type according to the instructions on the following pages. The
dissolved oxygen sensor doesn’t need calibration before rst use. But you can
calibrate it if required by standard operating procedures.
2 Measure
3 Use the menu.
Getting Started
4

Press Menu on the
keypad to display the
main menu.
Select Measurement
Cong with the arrow
keys. Press OK.
Select Suspended
Solids with the arrow
keys. Press OK.
Suspended Solids Sensor - Zero Calibration
Suspended Solids Sensor - Set Measurement Range (Set Cal)
Sensor Calibration
Use the Set Zero function to perform a zero calibration. Start by immersing the
sensor in clean water. Use a dark container to prevent interference from ambient
light.
Use the Set Cal feature to adjust calibration for a known range of solids based on
your application. The set point should represent the maximum expected value for
the measured media. Final Efuent range will be much lower than Activated Sludge.
Press Menu on the
keypad to display the
main menu.
The Set Zero screen
displays sensor info.
Press OK.
Select Measurement
Cong with the arrow
keys. Press OK.
Select Suspended
Solids with the arrow
keys. Press OK.
The monitor displays
a value. Wait for it to
stabilize. Then press
OK.
The monitor displays
a zero value for
ve seconds and
then shows live
measurements.
Choose Set Zero and
press OK.
Choose Set Cal and
press OK.
5

Use the arrow keys to
adjust the value to the
maximum expected
concentration. Press
OK.
“Calibration Success”
appears at the bottom
of the screen.
The monitor displays a
reading. Press OK.
The Set Cal screen
displays sensor info.
Press OK.
Suspended Solids Sensor - Take Sample for Calibration
Immerse the
sensor in a sample
representative of
operating conditions.
The Take Sample
screen displays sensor
info. Press OK.
The monitor displays
the date and time of
the last sample.
The monitor displays a
reading. Press OK.
Wait for calibration.
Press the Menu key on
the keypad.
Select Measurement
Cong. Press OK.
Choose Take Sample
and press OK.
Use Take Sample when you don’t know the value of the calibration solution. It stores
a value you can adjust later using the Sample Result function.
6

Sample Result (Turbidity/Suspended Solids Sensors)
Use Sample Result to adjust the value stored earlier with the Take Sample function.
You must know the value of the calibration solution based on a lab analysis.
Press Menu on the
keypad to display the
main menu.
The screen shows the
date and time of the
last sample. Press OK.
Select Measurement
Cong with the arrow
keys. Press OK.
Use the arrow keys to
adjust the value. Press
OK.
Choose Sample
Result and press OK.
The sample result
screen displays sensor
info. Press OK.
The screen displays
a success message.
Press OK.
Dissolved Oxygen Sensor - 100% Open Air Calibration
Select Measurement
Cong and press the
OK key.
Choose DO Saturation
and press OK.
Highlight Calibrate
and press OK.
The monitor displays
sensor info. Press OK.
Calibrate the sensor
in open air free from
drafts. Press OK.
Wait for a saturation
percentage of roughly
90%. Then press OK.
Calibrate the RDO sensor using the saturation method described below. See the
manual for the Partech 750w2Monitor to get more information about calibration.
Use the arrow keys
to select Suspended
Solids. Press OK.
Press Menu on the
keypad to display the
main menu.
7

8
Introduction to the 750w2Monitor
General
Display
Keypad
Sensors
Manual Conventions
The 750w² Monitor is designed to work with Partech’s WaterWatch² (w²) sensors. It combines a
clear display of the measured parameter and a simple user interface with exibility to enable
conguration to satisfy the users needs.
The 750w² display indicates the measured value with large numerals with an additional status line
that shows the current settings, battery status, and any faults that are present. The display has a
backlight to enable use of the monitor in low light conditions and also has adjustable contrast.
The measurement title and units can all be user set to suit the sensor being used and the
application being monitored.
The 7 key tactile membrane keypad is used for all conguration and operation of the 750w²
Monitor.
The 750w² Monitor can currently be used with the SoliTechw² IR sensor range, OxyTechw² RDO
sensor, and the WaterTechw² Temperature sensor.
This instruction manual describes the conguration and operation of the 750w² Monitor and where
required includes some information regarding sensors. It is therefore very important that it is used
in conjunction with the relevant sensor quick start guides shipped with each project.
The manual has been written on the basis that the user has a basic knowledge of instrumentation
and an understanding of the type of measurement being made. Training in the use of the 750w²
Monitor can be provided by Partech, please contact Partech for further information
Display Value
Measurement
Units
Battery status
Status Bar

9

10
Basic Operation
Power On/Off
Measure Mode
Press the On/Off button to turn
on the monitor. The monitor
automatically enters measure mode.
The normal operating mode for the
750w2Monitor is measure mode.
In this mode the measured value
appears in large numbers.
The display in measure mode also
includes a status bar that displays
the status of the battery and details
about instrument settings.
Pressing the OK key in measure
mode saves the current sensor
reading, time and date stamp. The
status bar briey displays “Saving”.
You can access any sensor
readings saved with this method by
transferring it to a computer via USB.
Or you can view it via the display
within the Recorded Data menu.
With no sensor connected, the
status bar displays ‘NO SENSOR’ .

11
Conguration Structure
Menu Mode
Conguration – Use of Keys
To access the main menu,
press the Menu key when the
monitor is in measure mode.
Use the arrow keys to select an
option from the menu.
Press the OK button to
activated the selected option.
Pressing the Menu key when
the main menu is displayed
returns the monitor to the
measure mode.
In any display other than measure mode, the monitor automatically returns to measure
mode after 1 minute with no key presses.
There are two ways to enter information when setting congurable settings.
User List Selection
This method allows you to
highlight an option from a list.
To select the item, press the
OK button.
User Text Entry
Use the horizontal arrow keys
to move between characters.
Use the vertical arrows to
change a character.

12
Monitor Conguration
This section explains the options available under the Monitor Conguration menu.
Press the OK key to select a highlighted menu option.
Highlight Bleeper in the menu
and press the OK button.
Highlight On or Off to activate
or deactivate the bleeper.
Use the arrow keys to change
the backlight brightness. Then
press OK to conrm the change.
Highlight Always On or On
after keypress to enable the
backlight. Press OK.
Use the arrow keys to change
the display contrast.
Bleeper Menu Option
Backlight Menu Option
Contrast Menu Option

13
You can change the date and
time with the monitor’s arrow
keys.
The Enable Service Mode option
provides diagnostic information.
This menu is intended for use by
Partech engineers.
Set Date and Time Menu
Option
Enable Service Mode Menu Option
Auto shutdown deactivates
the monitor if 60 seconds pass
without a key press.
Auto Shutdown Menu Option

14
Site Management
Introduction
Add a Site
Select Sites on the main menu.
Press the OK key.
Select Add Site. Press the OK
key.
Use the arrows to name the
site. Press the OK key when
comoplete.
This section explains the options under site management menu for use with the
Suspended Solids/Turbidity sensor only.
Some sensors do not support sites. If a sensor does not support sites, then the Site option will not
be visible within the menu. In order to support the Site option, both monitor and sensor require
the necessary rmware versions. Please contact Partech for further information.
Each site stores its own calibration values, so changing the site will change the calibration settings.
The rst name in the site list represents the default site and cannot be deleted.
A maximum of 10 sites is available. If 10 sites are already in use, delete an existing site to add a
new site.
Delete a Site
Select Sites on the main menu.
Press the OK key.
Select Delete Site. Press the
OK key.
Select the site to delete. Press
the OK key.

15
Edit a Site Name
Select Sites on the main menu.
Press the OK key.
Select Edit Site Name. Press
the OK key.
Edit the site name with the
arrow keys. Press OK when
complete.
Sensors with more than one active site
Monitor displays Loading
Sites.
Select the appropriate site
from the list. Press the OK key.
If a sensor with multiple sites is attached to the device when powered on, the device with display a
‘Loading Sites’ screen until the site list is displayed. The user must then select the appropriate site.

16
Measurement Conguration
These settings reside on the sensors. Thus, you can swap
sensors without reconguring them.
Press OK to select within this menu.
Measurement Cong provides access to sensor calibration and other measurement-
related settings.
Title Menu Options
Units Menu Options
From the Main Menu, navigate to
Measurement Cong to see the
Title option.
The Units menu option lets you
change measurement units.
Select one of the standard ti-
tles, or choose User Dened to
create your own. Maximum title
length is 20 characters.
Select a standard unit, or choose
User Dened to create your
own. The maximum length of a
custom unit is four characters.

17
Recorded Data
Each individual record consists of:
The records appear with the newest rst (at
the bottom of the display). Using the  keys
scrolls through the records.
• Date / time
• Measurement title
• Value / units
The recorded data function displays saved snapshot readings from sensors. Get to it by
pressing the OK key in Measure Mode.
Data Via USB
When plugged into a PC, the 750w2monitor appears as a USB memory drive named 750w2. It
contains a folder named DataRecordings.
Inside this folder is a CSV le named DataRecordings. This le combines all the recorded data and
is used to display data on the monitor. Do not edit this le. Doing so may corrupt your data.
The folder also contains les that are specic to each sensor. You should copy this le to your
desktop before using it to import that data into a spreadsheet for analysis.
Do not edit the DataRecordings le before downloading a copy to your computer.
Doing so may corrupt your data.

18
Monitor Conguration
Auto shutdown deactivates
the monitor if 60 seconds pass
without a key press.
You can change the date and
time with the monitor’s arrow
keys.
The Enable Service Mode option
provides diagnostic information.
This menu is intended for use by
Partech engineers.
Auto Shutdown
Menu Option
Enable Service Mode
Menu Option
Set Date and Time
Menu Option

19
Battery Charging
Battery
Charger
The monitor contains a Nickel Metal Hydride (NiMH) battery pack that supplies the power for
operation. This type of battery does not have to be fully discharged prior to charging, although
this is a preferred option. It’s therefore possible to “top up” the battery charge as required. This is
particularly useful prior to using the instrument for a long period.
Battery life is sufcient for 1 week of normal use between charges:
The 750w2Monitor comes with a USB power adapter and cable. These plug into the socket on the
bottom left of the monitor. This device is specically designed to provide the optimum conditions
for the 750w2battery. However, a variety of USB charge sources can be used as long as they meet
the minimum 500mA charging current.
When connected to the monitor, the charging LED gives a visual indication of charging status.
• When normal use is dened as 30 measurements per day
• Under normal operating conditions (normal contrast and brightness settings, auto-shutdown en-
abled, meaning the 750w2is on for only one minute at a time).
Unlit Red Green
Not connected or charger off Charging Fully charged

20
Firmware Updates
Introduction
Updating Firmware
Make sure the monitor is fully
charged. From the Monitor
Cong menu, select Update
Monitor F/W.
Plug the USB cable into the PC.
Copy the supplied BIN le to
the 750w2.
Ensure there is only one BIN
le in the root folder of the
750w2.
Click OK on the 750w2. The
750w2displays the ‘Loading’
screen. The 750w2takes a few
seconds to update, and then
restarts as normal. The update
is complete.
The rmware on the 750w2is easy to update. Follow the steps below to put the latest
rmware on your 750w2. Please contact customer service with any questions.