Help with Water Quality Photometers and Colorimeters specifications:
Measured Parameter
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| 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. | ||
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Performance Specifications
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| Response Time | |||
| Search Logic: | All matching products will have a value less than or equal to the specified value. | ||
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Instrument Type
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| 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. | ||
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User Interface Options
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| 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. | ||
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| 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. | ||
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| 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. | ||
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| 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. | ||
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Display Type
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| 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. | ||
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Output Options
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| 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. | ||
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Features
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| 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. | ||
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Environment
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| 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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