ADP1000 User Guide: Difference between revisions

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__NOINDEX__
__NOTOC__
<metadesc>Connect a pH probe or any voltage-based probe that uses a BNC connector to your VINT port with pH Phidget.</metadesc>
[[Category:UserGuide]]
[[Category:UserGuide]]
__NOTOC__
==Part 1: Setup==
[[Image:ADP1000_Functional.jpeg|300px|right|link=]]
{{UGIntro|ADP1000}}
===Required Hardware===
* [{{SERVER}}/products.php?product_id=ADP1000 ADP1000 - pH Phidget]
* {{VINTHub}}
* {{CT|PhidgetCable|Phidget cable}}
* USB cable and computer
* {{CT|pHORPProbe|compatible pH/ORP probe}}


* An ADP1000 pH Phidget
* A 3-wire sensor cable
* A VINT Hub
* A USB cable
* A computer
* A pH or ORP probe with a BNC connector


===Connecting the Pieces===
Next, you will need to connect the pieces:
 
[[Image:ADP1000-functional.jpg|500px|link=|right]]
# Connect the ADP1000 to the VINT Hub using the sensor cable.
# Connect the ADP1000 to the VINT Hub using the Phidget cable.
# Connect the VINT Hub to your computer with a USB cable.
# Connect the VINT Hub to your computer with a USB cable.
# Connect a pH or ORP probe to the Phidget's BNC connector.
# Connect a pH or ORP probe to the ADP1000.


<br clear="all">
<br clear="all">
{{UGIntroDone|ADP1000}}.


==Testing Using Windows==
{{UGcontrolpanel|ADP1000}}


{{UGcontrolpanel|ADP1000}}
== Part 2: Using Your Phidget ==
 
===About===
The ADP1000 with a pH or ORP probe measures pH (0-14) or gets raw voltage input from the probe '''(±400mV or ±2V)'''. For more accuracy, set the temperature of the solution in the software.
 
[[Image:ADP1000_About.jpg|600px|link=|center]]
 
===Explore Your Phidget Channels Using The Control Panel===
 
You can use your Control Panel to explore your Phidget's channels.


{{ugVoltageInput}}
'''1.''' Open your Control Panel, and you will find the following channels:


{{UGotheros}}
[[Image:ADP1000_Panel.jpg|link=|center]]


==Technical Section==
'''2.''' Double click on a channel to open an example program. Each channel belongs to a differemt channel class:


===Current Consumption===
{{UGC-Start}}


The amount of current this device consumes is dependant on the data interval and input mode you select. The more frequent the data updates, the higher the current consumption will be.
{{UGC-Entry|PH Sensor Input:| Measures the pH from the attached probe|
In your Control Panel, double click on "PH Sensor Input":


[[Image:ADP1000-PHSensor.jpg|center|link=]]}}


[[Image:ADP1000_Current.jpg|link=]]
{{UGC-Entry|Voltage Input:| Measures the raw voltage value from the attached probe|
In your Control Panel, double click on "Voltage Input":


[[Image:ADP1000-VoltageInput.jpg|center|850px|link=]]}}


===Raw Voltage Equations===
{{UGC-End}}


For the pH probes sold by Phidgets, the raw voltage value is converted to pH according to the following equation:
{{UG-Part3}}


<math>
== Part 4: Advanced Topics and Troubleshooting ==
\text{pH =} \frac{\text{V}}{0.05916} + 7
{{UGC-Start}}
</math>
{{UGC-Addressing}}
{{UGC-DataInterval}}
{{UGC-Entry|pH Temperature Correction||
The ADP1000 automatically converts raw voltage (from the pH probe) into an extremely accurate pH reading. For even more accuracy, you can set a Correction Temperature. The Correction Temperature corresponds to the temperature of the solution you are measuring (in °C). Here are a few examples of how temperature affects the output voltage of a pH probe:


Where "V" is the raw voltage of the probe in volts DC.
[[Image:ADP1000-TempTables.jpg|center|link=]]


If you have a probe from another store, you may need to use a different equation than the one above to convert into the unit of the probe. Check the probe's data sheet for more information.
As you can see from the examples above, temperature has a greater impact on solutions that have a pH further away from 7.  


For ORP probes, the raw voltage value is equivalent to the actual oxidation reduction potential in volts.
If you want to monitor the temperature of your solution, you can use a thermocouple. Check out our {{CT|TCInterface|Thermocouple Interfaces}} to get started. For more information about how to set a Correction Temperature, view the {{Phidget22API}}.
}}


===Further Reading===
{{UGC-Entry|My probe reading is incorrect and it fluctuates when I place my hand near it||
When the probe dries out, it becomes more sensitive to interference. Even static electricity on your clothes can warp the reading. To solve the problem, immerse the probe in a buffer solution overnight.
}}


For more information on pH and ORP probes, check the [[PH/ORP Sensor Primer]].
{{UGC-Entry|Probe Cleaning and Maintenance||
See the [[PH/ORP Sensor Primer]] for more information.
}}


{{UGnext|}}
{{UGC-End}}

Revision as of 20:56, 26 May 2020


Part 1: Setup

Welcome to the ADP1000 user guide! In order to get started, make sure you have the following hardware on hand:


Next, you will need to connect the pieces:

ADP1000-functional.jpg
  1. Connect the ADP1000 to the VINT Hub using the Phidget cable.
  2. Connect the VINT Hub to your computer with a USB cable.
  3. Connect a pH or ORP probe to the ADP1000.


Now that you have everything together, let's start using the ADP1000!.

Phidget Control Panel

In order to demonstrate the functionality of the ADP1000, the Phidget Control Panel running on a Windows machine will be used.


The Phidget Control Panel is available for use on both macOS and Windows machines.

Windows

To open the Phidget Control Panel on Windows, find the Ph.jpg icon in the taskbar. If it is not there, open up the start menu and search for Phidget Control Panel

Windows PhidgetTaskbar.PNG

macOS

To open the Phidget Control Panel on macOS, open Finder and navigate to the Phidget Control Panel in the Applications list. Double click on the Ph.jpg icon to bring up the Phidget Control Panel.


For more information, take a look at the getting started guide for your operating system:


Linux users can follow the getting started with Linux guide and continue reading here for more information about the ADP1000.

First Look

After plugging the ADP1000 into your computer and opening the Phidget Control Panel, you will see something like this:

ADP1000 Panel.jpg


The Phidget Control Panel will list all connected Phidgets and associated objects, as well as the following information:

  • Serial number: allows you to differentiate between similar Phidgets.
  • Channel: allows you to differentiate between similar objects on a Phidget.
  • Version number: corresponds to the firmware version your Phidget is running. If your Phidget is listed in red, your firmware is out of date. Update the firmware by double-clicking the entry.


The Phidget Control Panel can also be used to test your device. Double-clicking on an object will open an example.

Part 2: Using Your Phidget

About

The ADP1000 with a pH or ORP probe measures pH (0-14) or gets raw voltage input from the probe (±400mV or ±2V). For more accuracy, set the temperature of the solution in the software.

ADP1000 About.jpg

Explore Your Phidget Channels Using The Control Panel

You can use your Control Panel to explore your Phidget's channels.

1. Open your Control Panel, and you will find the following channels:

ADP1000 Panel.jpg

2. Double click on a channel to open an example program. Each channel belongs to a differemt channel class:

Expand All
PH Sensor Input: Measures the pH from the attached probe

In your Control Panel, double click on "PH Sensor Input":

ADP1000-PHSensor.jpg
Voltage Input: Measures the raw voltage value from the attached probe

In your Control Panel, double click on "Voltage Input":

ADP1000-VoltageInput.jpg

Part 3: Create your Program

1. Setting up your Programming Environment

2. Phidget Programming Basics

Part 4: Advanced Topics and Troubleshooting

Expand All
How do I know what channel, serial number, or hub port to use in my program?

Before you open a Phidget channel in your program, you can set these properties to specify which channel to open. You can find this information through the Control Panel.

1. Open the Control Panel and double-click on the red map pin icon:

The locate Phidget button is found in the device information box

2. The Addressing Information window will open. Here you will find all the information you need to address your Phidget in your program.

All the information you need to address your Phidget


See the Phidget22 API for your language to determine exact syntax for each property.

Setting the Change Trigger and Data Interval

The Change Trigger is the minimum change in the sensor data needed to trigger a new data event.

The Data Interval is the time (in ms) between data events sent out from your Phidget.

The Data Rate is the reciprocal of Data Interval (measured in Hz), and setting it will set the reciprocal value for Data Interval and vice-versa.

You can modify one or both of these values to achieve different data outputs. You can learn more about these properties here.

pH Temperature Correction

The ADP1000 automatically converts raw voltage (from the pH probe) into an extremely accurate pH reading. For even more accuracy, you can set a Correction Temperature. The Correction Temperature corresponds to the temperature of the solution you are measuring (in °C). Here are a few examples of how temperature affects the output voltage of a pH probe:

ADP1000-TempTables.jpg

As you can see from the examples above, temperature has a greater impact on solutions that have a pH further away from 7.

If you want to monitor the temperature of your solution, you can use a thermocouple. Check out our Thermocouple Interfaces to get started. For more information about how to set a Correction Temperature, view the Phidget22 API.

My probe reading is incorrect and it fluctuates when I place my hand near it

When the probe dries out, it becomes more sensitive to interference. Even static electricity on your clothes can warp the reading. To solve the problem, immerse the probe in a buffer solution overnight.

Probe Cleaning and Maintenance

See the PH/ORP Sensor Primer for more information.

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