Water Quality Photometers and Colorimeters Specifications

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Measured Parameter


	Measured Parameter
	Your choices are...
	Aluminum
	Ammonia
	Bromine
	Total Chlorine
	Free Chlorine
	Chlorine Dioxide
	Hexavalent Chromium
	Chromate (Hexavalent)
	Copper
	Cyanide
	Cyanuric Acid
	DEHA/Oxygen Scavengers
	Fluoride
	Formaldehyde
	Glycol
	Hardness (Magnesium or Calcium)
	Hydrazine
	Hydrogen Peroxide
	Iodine
	Iron
	Manganese
	Molybdate
	Molybdenum
	Nickel
	Nitrate
	Nitrite
	Ozone
	Peracetic Acid
	Phenols
	Phosphate
	Phosphorus
	Silica
	Silver
	Sulfide
	Total Petroleum Hydrocarbons
	Zinc
	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.

Performance Specifications


	Response Time
	Search Logic:		All matching products will have a value less than or equal to the specified value.

Instrument Type


	Instrument Type
	Your choices are...
	Handheld		Specifically for using while holding in one hand.
	Portable		Has handles/case/wheels etc. to make easy to move, not necessarily held in hand to use.
	Fixtured or Permanent		Mounted or fixtured in place for long-running use.
	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 Options


	Local Interface
	Your choices are...
	Analog Front Panel		Has analog user inputs such as potentiometers, dials, switches, etc.
	Digital Front Panel		Setup or program through the front panel using digital keypad, menus, etc.
	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.

	Computer Interface?		Can be controlled or monitored remotely with a computer via interface.
	Search Logic:		"Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.

	Interface Options
	Your choices are...
	Serial Interface		Serial communication protocol such as RS-232, RS-485, USB.
	Parallel Interface		Parallel communication protocol such as GPIB / IEEE-488 / HPIB Protocol.
	Other Computer Interface		Special requirements such as modem, RF transmitter, etc.
	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.

	Application Software Included?		For control or for monitoring meter.
	Search Logic:		"Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.

Display Type


	Display Type
	Your choices are...
	Analog Meter or Indicator		Includes needle meters, LED indicators, etc.
	Digital Readouts		Numerical or application-specific readouts.
	Video Display Terminal		Generic video display terminal, e.g. CRT, flat panel displays, etc.
	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


	Output Options
	Your choices are...
	Analog voltage signal		Voltage output that can be read by a separate device.
	Analog current signal		Current output that can be read by a separate device; also referred to as "transmitter" option (e.g., 4-20 mA).
	Frequency or Modulated Frequency		Frequency or modulated frequency output (Ex. sine wave, pulse train, AM, FM)
	Switch or alarm signal		Output contains a switched signal at a certain threshold.
	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


	Features
	Your choices are...
	Battery Powered		Batteries for full operation, not just backup.
	Auto Wavelength Selection
	Automatic Calibration		Typically obtained by inserting blank sample and zeroing out reading.
	Temperature Compensation		Automatic adjustment of readings to account for sensitivity variation due to temperature fluctuation.
	Self-Test Diagnostics		On-board diagnostic routines to verify sensitivity, zero point, etc.
	Water or Weather Resistant Housing
	Data Storage or Data Logging		Integral or on-board reading storage capability.
	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.

Environment


	Operating Temperature		Full range of required operating temperature.
	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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