Conductivity and Resistivity Meters Specifications

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Conductivity / Dissolved Solids Measurement


	Measures Conductivity / Dissolved Solids		Devices measure conductivity and/or dissolved solids.
	Search Logic:		"Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.

	Conductivity / Dissolved Solids Range		The range of conductivity and/or dissolved solids which devices measure.
	Search Logic:		User may specify either, both, or neither of the limits in a "From - To" range; when both are specified, matching products will cover entire range. Products returned as matches will meet all specified criteria.

	Conductivity Accuracy		The device's conductivity accuracy, as a percentage of full-scale.
	Search Logic:		All matching products will have a value less than or equal to the specified value.

Resistivity Measurement


	Measures Resistivity?		The device measures resistivity, the reciprocal of conductivity.
	Search Logic:		"Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.

	Resistivity Range		The resistivity range which devices measure.
	Search Logic:		User may specify either, both, or neither of the limits in a "From - To" range; when both are specified, matching products will cover entire range. Products returned as matches will meet all specified criteria.

	Resistivity Accuracy		The device's resistivity accuracy, as a percentage of full-scale.
	Search Logic:		All matching products will have a value less than or equal to the specified value.

Instrument Specific Features / Options


	Controller?		Devices provide some controller functionality, such as set limits and proportional (P) control, proportional integrative (PI) control, or proportional integrative derivative (PIC) control.
	Search Logic:		"Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.

	Control Relays		The number of control relays.
	Search Logic:		All matching products will have a value greater than or equal to the specified value.

	Process Media Temperature		The temperature of the media in which the sensor, probe, or electrode is immersed.
	Search Logic:		User may specify either, both, or neither of the limits in a "From - To" range; when both are specified, matching products will cover entire range. Products returned as matches will meet all specified criteria.

Special Instrument Type


	Mounting / Environment
	Your choices are...
	Hand Held		Devices are designed to be operated while held by hand.
	Portable		Devices have handles, a case, or wheels for ease of movement. They are not necessarily handheld.
	Modular		Devices are modular and can be interfaced with sensors or input ranges.
	Lab / Benchtop		Devices are designed to sit atop a bench or desktop in a laboratory. They are not suitable for field use.
	In-Situ / Field		Devices are designed for in-situ or field use, outside of a laboratory setting.
	Panel		Devices attach to a panel.
	Other		Other unlisted, specialized, or proprietary mounting environments.
	Search Logic:		All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.

User Interface


	Display Type
	Your choices are...
	Analog Meter		Devices have an analog meter, typically with a needle
	Digital Display		Devices have a digital display.
	Video Display		Devices have a cathode ray tube (CRT), liquid-crystal display (LCD), flat panel display (FPD), or other multiline display.
	None		Devices do not have a display.
	Search Logic:		All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.

	User Controls
	Your choices are...
	Manual Controls		Devices have simple, front panel or local controls such as knobs and/or potentiometers.
	Digital Front Panel		Devices have a digital front panel that is programmed with a keypad.
	Computer Interface		Devices are programmed with a computer interface.
	None		Devices do not have user controls.
	Search Logic:		All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.

Output Options


	Electrical Output
	Your choices are...
	Analog Voltage		The output is an analog voltage. This is a simple, usually linear, function of the measurement.
	Analog Current		The output is an analog current that is imposed on the output circuit proportional to the measurement. Feedback provides the appropriate current, regardless of variables such as line noise and impedance. Analog current outputs or transmitters are often used to send signals over long distances.
	Analog Frequency		The output is an analog frequency, a format which transmits information with continuous physical variables such as voltage amplitude or frequency variations.
	Switch / Alarm Relay		The output is a change-in-state of a switch or alarm.
	Other		Other unlisted output types.
	Search Logic:		All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.

Features & Functionality


	Temperature Compensation		Devices can compensate for changes in ambient temperature.
	Search Logic:		"Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.

	Battery Powered		Devices require batteries for full operation, not just a battery backup.
	Search Logic:		"Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.

	Filters		Devices provide special signal processing or filtering.
	Search Logic:		"Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.

	Event Triggered		Devices can capture and/or log data when an event happens.
	Search Logic:		"Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.

	Built-in or Self-calibration		Devices have a built-in calibrator, which can be used for testing and readjustment.
	Search Logic:		"Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.

	Extreme Environment		Devices are designed to withstand harsh environments with extreme humidity, temperature, dust, etc.
	Search Logic:		"Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.

	Self-test / Diagnostics		Devices have self-test or diagnostics capabilities.
	Search Logic:		"Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.

Environment


	Operating Temperature		The temperature range over which devices are designed to operate.
	Search Logic:		User may specify either, both, or neither of the limits in a "From - To" range; when both are specified, matching products will cover entire range. Products returned as matches will meet all specified criteria.

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