1130 User Guide - Revision history

Mparadis at 14:34, 9 May 2018

2018-05-09T14:34:40Z

← Older revision		Revision as of 14:34, 9 May 2018
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			__NOINDEX__
	[[Category:UserGuide]]		[[Category:UserGuide]]
	{{UserguideTOC\|1130.jpg\|1130}}		{{UserguideTOC\|1130.jpg\|1130}}

Mparadis: /* Choosing Electrodes */

2012-09-21T17:30:07Z

Choosing Electrodes

← Older revision		Revision as of 17:30, 21 September 2012
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	===Choosing Electrodes===		===Choosing Electrodes===
	Review the data sheet for the electrode you have selected for your application to ensure that it complies with the device specifications of the pH Adapter Board. The important specification is the output voltage of the electrode. Many electrodes will work but it is important to verify compliance before connecting an electrode to the Adapter Board. We have reviewed the following electrodes, and found that they can be used with the pH Adapter Board. This is by no means a comprehensive list, but can be used as a comparison with other electrodes if necessary.		Review the data sheet for the electrode you have selected for your application to ensure that it complies with the device specifications of the pH Adapter Board. The important specification is the output voltage of the electrode. Many electrodes will work but it is important to verify compliance before connecting an electrode to the Adapter Board. In fact, any type of sensor that uses a BNC connector and complies with the voltage range of the 1130 should work. We have reviewed the following electrodes, and found that they can be used with the pH Adapter Board. This is by no means a comprehensive list, but can be used as a comparison with other electrodes if necessary.

	{\| border = 1		{\| border = 1

Mparadis: /* Technical Details */

2012-08-21T18:46:35Z

Technical Details

← Older revision		Revision as of 18:46, 21 August 2012
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	{{UGasens}}		{{UGasens}}

			===Further Reading===

			For more information on pH and ORP probes, check the [[PH/ORP Sensor Primer]].

	==API==		==API==

Burley: /* Words of Caution */

2012-08-21T15:31:52Z

Words of Caution

← Older revision		Revision as of 15:31, 21 August 2012
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	===Words of Caution===		===Words of Caution===
	'''The pH Adapter Board should be used to measure solutions ~~taht~~ are 'electrically quiet'.'''		'''The pH Adapter Board should be used to measure solutions that are 'electrically quiet'.'''
	Measuring pH in electrically noisy environments such as tanks with mixing pumps, and even other measuring devices is not recommended.		Measuring pH in electrically noisy environments such as tanks with mixing pumps, and even other measuring devices is not recommended.

Mparadis: /* Technical Details */

2012-08-21T15:22:32Z

Technical Details

← Older revision		Revision as of 15:22, 21 August 2012
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	{{UGasens}}		{{UGasens}}

			==API==
			{{SensorAPI}}

	==Product History==		==Product History==
	{{UGhist}}		{{UGhist}}
	{{UGrow\|March 2010 \|0 \|N/A \|Product Release }}		{{UGrow\|March 2010 \|0 \|N/A \|Product Release }}

Burley at 15:36, 10 August 2012

2012-08-10T15:36:47Z

← Older revision		Revision as of 15:36, 10 August 2012
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	[[Category:UserGuide]]		[[Category:UserGuide]]
			{{UserguideTOC\|1130.jpg\|1130}}
	==Getting Started==		==Getting Started==

Mparadis: /* Measuring Oxidation/Reduction Potential (ORP) */

2012-08-09T16:23:27Z

Measuring Oxidation/Reduction Potential (ORP)

← Older revision		Revision as of 16:23, 9 August 2012
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	To determine the ORP of a solution, make sure the DIP switch on the board is flipped to the ORP side. Given the SensorValue from the PhidgetInterfaceKit, the following formula can be applied:		To determine the ORP of a solution, make sure the DIP switch on the board is flipped to the ORP side. Given the SensorValue from the PhidgetInterfaceKit, the following formula can be applied:

	<math>ORP (V) = frac{2.5 - frac{SensorValue}{200}}{1.037}</math>
			:<math>
			\text{ORP (V)} = \frac{2.5 - \frac{\text{SensorValue}}{200}}{1.037}
			</math>


	ORP electrodes give a typical range of -2V to 2V, where the positive values are for oxidizers and the negative values are for reducers.		ORP electrodes give a typical range of -2V to 2V, where the positive values are for oxidizers and the negative values are for reducers.

Mparadis: /* Measuring the pH */

2012-08-09T16:22:42Z

Measuring the pH

← Older revision		Revision as of 16:22, 9 August 2012
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	To determine the pH of a solution, make sure the DIP switch on the board is flipped to the pH side. Given the SensorValue from the Phidget InterfaceKit, the following formula can be applied:		To determine the pH of a solution, make sure the DIP switch on the board is flipped to the pH side. Given the SensorValue from the Phidget InterfaceKit, the following formula can be applied:

	<math>pH = 0.0178 * SensorValue - 1.889</math>
			<math>
			\text{pH = 0.0178} \times \text{SensorValue} - 1.889
			</math>


	This formula assumes that the solution is at 25 degrees Celsius. Depending on the temperature of the solution and on the actual pH level, the SensorValue can change dramatically. To incorporate temperature (in degrees Celsius) for added accuracy, the following formula can be used:		This formula assumes that the solution is at 25 degrees Celsius. Depending on the temperature of the solution and on the actual pH level, the SensorValue can change dramatically. To incorporate temperature (in degrees Celsius) for added accuracy, the following formula can be used:

	<math>pH = 7 - frac{2.5 - frac{SensorValue}{200}}{0.257179 + 0.000941468 * Temperature}</math>
			<math>
			\text{pH = 7 }- \frac{2.5 - \frac{SensorValue}{200}}{0.257179 + 0.000941468 \times \text{Temperature}}
			</math>


	The following example is to give an idea of how the temperature affects the SensorValue. A solution with a pH of 2 at a temperature of 25 degrees Celsius yields a SensorValue of 219. At 100 degrees Celsius, the SensorValue decreases to 148, and at 0 degrees celsius, the SensorValue reports 242. A solution with a pH of 8 with a temperature of 0, 25 and 100 degrees Celsius gives a SensorValue of 551, 556 and 570, respectively. It can be seen that the temperature has a greater affect on solutions that have a pH further away from the reference pH of 7. Additionally, temperature affects the impedance of the glass electrode, and can result in increased errors if not properly calibrated. If you want to monitor the temperature of the solution, you can use a thermocouple. You’ll need to add some sort of protective shielding to the thermocouple if you’re using acidic or basic solutions, though. Check out our thermocouple interfaces for more information.		The following example is to give an idea of how the temperature affects the SensorValue. A solution with a pH of 2 at a temperature of 25 degrees Celsius yields a SensorValue of 219. At 100 degrees Celsius, the SensorValue decreases to 148, and at 0 degrees celsius, the SensorValue reports 242. A solution with a pH of 8 with a temperature of 0, 25 and 100 degrees Celsius gives a SensorValue of 551, 556 and 570, respectively. It can be seen that the temperature has a greater affect on solutions that have a pH further away from the reference pH of 7. Additionally, temperature affects the impedance of the glass electrode, and can result in increased errors if not properly calibrated. If you want to monitor the temperature of the solution, you can use a thermocouple. You’ll need to add some sort of protective shielding to the thermocouple if you’re using acidic or basic solutions, though. Check out our thermocouple interfaces for more information.

Mparadis at 15:27, 30 July 2012

2012-07-30T15:27:42Z

← Older revision		Revision as of 15:27, 30 July 2012
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	Review the data sheet for the electrode you have selected for your application to ensure that it complies with the device specifications of the pH Adapter Board. The important specification is the output voltage of the electrode. Many electrodes will work but it is important to verify compliance before connecting an electrode to the Adapter Board. We have reviewed the following electrodes, and found that they can be used with the pH Adapter Board. This is by no means a comprehensive list, but can be used as a comparison with other electrodes if necessary.		Review the data sheet for the electrode you have selected for your application to ensure that it complies with the device specifications of the pH Adapter Board. The important specification is the output voltage of the electrode. Many electrodes will work but it is important to verify compliance before connecting an electrode to the Adapter Board. We have reviewed the following electrodes, and found that they can be used with the pH Adapter Board. This is by no means a comprehensive list, but can be used as a comparison with other electrodes if necessary.

	{\| ~~{{table}}~~ border = 1		{\| border = 1
	\| align="center" style="background:#f0f0f0;"\|'''Manufacturer'''		\| align="center" style="background:#f0f0f0;"\|'''Manufacturer'''
	\| align="center" style="background:#f0f0f0;"\|'''Web Page'''		\| align="center" style="background:#f0f0f0;"\|'''Web Page'''

Mparadis at 16:13, 26 July 2012

2012-07-26T16:13:05Z

← Older revision		Revision as of 16:13, 26 July 2012
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			[[Category:UserGuide]]

	==Getting Started==		==Getting Started==