Professional Plus (Pro Plus) Multiparameter Instrument

This post is also available in: viVietnamese

The YSI Professional Plus handheld multiparameter meter provides extreme flexibility for the measurement of a variety of combinations for dissolved oxygen, conductivity, specific conductance, salinity, resistivity, total dissolved solids (TDS), pH, ORP, pH/ORP combination, ammonium (ammonia), nitrate, chloride and temperature. Also a very powerful lab instrument for BODs, pH and ORP.

  • Technical Data 
  • Features
  •  Applications 
  • Video
Autostable User-defined auto-stable function holds stable readings on display when criteria is met
Certifications RoHS, CE, WEEE, C-Tick, VCCI, FCC, IP-67 (waterproof), 1-meter drop test, Assembled in USA
Connectivity / Communications USB 2.0 for data transfer and user-upgradeable instrument firmware. Communications saddle, USB cable and Data Manager software included
Connector Metal MS (military spec) waterproof with bayonet lock
Data Management 5000 data set memory in Pro Plus with 100 user-defined sites and site names. Data Manager desktop software included
Desktop Software Compatible Data Manager desktop software included. Minimum PC requirements – Windows 2000 with SP4 (minimum) or XP with SP2 (minimum), Vista 7 or Windows 8 | 300 MHz or higher Pentium-compatible CPU | 128 MB of RAM or higher | 80 MB or more of free hard-disk space
Digital / Digital Sensors No, the Pro Plus is an analog instrument
GLP Compliance Yes, detailed GLP information is stored and is available to view, download or print
Graphic Display Graphic display can be seen in any lighting condition and with polarized glasses | Backlit display AND keypad | Includes detailed on-board Help
Languages Spanish, Italian, German, English, Chinese (Simplified and Traditional), Portuguese, French, Japanese, Norwegian
Logging Capabilities Single or Continuous
Memory 5,000 data sets (data, date, time, user-defined info), 100 GLP files
Multiparameter Yes
Operating Temperature -10 to 60°C
Parameters Measured Temperature, Dissolved Oxygen, pH, ORP/Redox, Conductivity, TDS, Ammonia, Ammonium, Nitrate, Chloride,Built-in barometer
Power 2 alkaline C-cells provide 80 continuous hours at ambient temperature without backlight, ProComm II saddle provides USB power or optional wall power, cigarette lighter, and universal cell phone charger options
Sampling Yes
Storage Temperature -20 to 70°C
Unit of Measure mg/L, Ammonium-mg/L-N, Total Dissolved Solids(TDS)-g/L, air saturation, °F, Temperature- °C, Conductivity-mS/cm, pH-units, Barameter-mmHg, Chloride-mg/L, Salinity-ppt, ORP-mV, Dissolved Oxygen-%, Nitrate-mg/L-N
User Calibratable Yes
User Replaceable Yes, cables and most sensors are user-replaceable
Warranty 3-year instrument; 2-year field cables
Waterproof IP-67 (even with the battery cover off and cable disconnected), floats

The Pro Plus instrument meets the demands of true field work. The instrument is rated to IP-67 standards even without the battery cover on. Other tough features include a 3-year warranty, Mil-spec connectors, rubber overmolded case, and a 2-year cable warranty. In-house testing procedures also include 1-meter drop tests from all angles to ensure expected field-durability.

Tough, Field Durability Features Include:

  • Easy-to-install cable weights; can be daisy-chained for additional weight*
  • Rubber, over-molded IP-67 waterproof case (even without the battery cover)*
  • 3-year instrument warranty
  • 2-year cable warranty*
  • Rugged cables, sensors, and military-spec connectors*
  • Drop-tested 1 meter at all angles*
  • Scratch-resistant lens; viewable with polarized glasses
  • Instrument floats
  • Weighted, user-replaceable multi-sensor design

The instrument provides numerous benefits from the following features; 5,000 data-set memory, password protection, backlit display and keypad, graphic display with detailed Help functionality, re-cal prompts, user defined fields, detailed GLP, auto stable, Hold All Readings function, Data Manager software for the desktop, USB connection, auto-buffer recognition, and flexible folders and site lists for logging data.

Smart Features Include:

  • 5,000 data set memory
  • Detailed on-screen Help function*
  • Free, Data Manager desktop software and ProComm II saddle*
  • Interval or single-event logging
  • 100 folder & site list data structure*
  • Password protection
  • Detailed GLP data
  • USB connection also powers the instrument
  • 6-point cal with auto-buffer recognition*
  • User-adjustable auto-stable with prompts*
  • User-upgradeable software via waterproof USB port
  • Recalibration prompts
  • Search function filters user-defined data information*
  • Backlit display AND keypad*
  • Cable management kit included with all cables from 4- to 30-meters*

Most Versatile
Connect any Professional Series cable (excludes ODO cables) and probe option to the instrument and use the convenient cable management kit to keep everything simple and organized. Cable options range from 1-, 4-, 10-, 20-, and 30-meter choices (up to 100-meters on DO only cables). Use lab or field probes and switch between the two quickly. The Pro Plus makes an ideal lab BOD instrument with the proven self-stirring BOD probe (EPA Approved). A convenient handstrap can be used on either side of the instrument. A complete family of accessories also increases the versatility of the Pro Plus. Choose among accessories including carrying cases, flow cells, cable weight, belt clip, tripod, and c-clamp.

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