ADP1000 User Guide: Difference between revisions
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<metadesc>Connect a pH probe or any voltage-based probe that uses a BNC connector to your VINT port with pH Phidget.</metadesc> | <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]] | ||
== | ==Part 1: Setup== | ||
{{ | {{PT1 Deck Sequence}} | ||
== 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]] | |||
==Using | ===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: | |||
[[Image:ADP1000_Panel.jpg|link=|center]] | |||
'''2.''' Double click on a channel to open an example program. Each channel belongs to a differemt channel class: | |||
{{UGC-Start}} | |||
{{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=]]}} | |||
{{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|link=]]}} | |||
| | |||
|} | |||
{{UGC-End}} | |||
{{UG-Part3}} | |||
== | == Part 4: Advanced Topics and Troubleshooting == | ||
{{UGC-Start}} | |||
{{UGC-Addressing}} | |||
{{UGC-Graphing}} | |||
For more | {{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: | |||
{{ | [[Image:ADP1000-TempTables.jpg|center|link=]] | ||
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 {{CT|TCInterface|Thermocouple Interfaces}} to get started. For more information about how to set a Correction Temperature, view the {{Phidget22API}}. | |||
}} | |||
{{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. | |||
}} | |||
{{UGC-Entry|Probe Cleaning and Maintenance|| | |||
See the [[PH/ORP Sensor Primer]] for more information. | |||
}} | |||
{{UGC-End}} |
Revision as of 17:34, 17 March 2021
Part 1: Setup
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.
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:
2. Double click on a channel to open an example program. Each channel belongs to a differemt channel class:
In your Control Panel, double click on "PH Sensor Input":
In your Control Panel, double click on "Voltage Input":
Part 3: Create your Program
1. Setting up your Programming Environment
Part 4: Advanced Topics and Troubleshooting
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:
2. The Addressing Information window will open. Here you will find all the information you need to address your Phidget in your program.
See the Phidget22 API for your language to determine exact syntax for each property.
Note: Graphing and logging is currently only supported in the Windows version of the Phidget Control Panel.
In the Phidget Control Panel, open the channel for your device and click on the icon next to the data type that you want to plot. This will open up a new window:
If you need more complex functionality such as logging multiple sensors to the same sheet or performing calculations on the data, you'll need to write your own program. Generally this will involve addressing the correct channel, opening it, and then creating an Event Handler and adding graphing/logging code to it.
The quickest way to get started is to download some sample code for your desired programming language and then search google for logging or plotting in that language (e.g. "how to log to csv in python") and add the code to the existing change handler.
Filtering
You can perform filtering on the raw data in order to reduce noise in your graph. For more information, see the Control Panel Graphing page.
Graph Type
You can perform a transform on the incoming data to get different graph types that may provide insights into your sensor data. For more information on how to use these graph types, see the Control Panel Graphing page.
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.
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:
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.
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.
See the PH/ORP Sensor Primer for more information.