• Large, 4 digit LED displays temperature, raw conductivity, and temperature-corrected conductivity for up to four sample points
  
  
• Three manual ranges: 0-1, 0-10, and 0-100 µS/cm and auto-ranging
  
  
• Automatic digital calibration for temperature and conductivity
  
  
• Four isolated 4-20 mA analog and one RS232 digital output
  
  
  
• Four alarm set points and password protection
  
  
• Easy to install, calibrate, and maintain
  
  
• 5 year warranty on analyzer and
  sensor electronics
  
  
  
• Meets ASTM, NIST, and USP 23 Guidelines for ultrapure conductivity measurements

... for accurate, continuous, in situ
monitoring of up to four ultrapure
water conductivity measurements

The Martek Mark 25 Ultrapure Water Conductivity Analyzer is a highly accurate, simple-to-use monitoring system that provides continuous monitoring of up to four ultrapure water sample points at an affordable price.

Designed to provide maximum performance and value, the Mark 25's ability to monitor up to four sample points along with a full complement of output capabilities allows the operator to customize the system to any application. A large, bright 4 digit LED display presents data and setup options quickly while DB-9 connectors and removable terminal strips allow for quick sensor, recorder, and alarm hookups. There's even an ON/OFF switch located on the rear panel.

Installation and calibration are easy and require a minimum of experience. Housed in a standard 1/4 DIN enclosure, the Mark 25 easily replaces inoperative or obsolete equipment without modification to existing sample panels. And, with a five year warranty for the analyzer and lifetime for the sensor, the Mark 25 is designed for years of worry-free service.

The Mark 25 is ideal for all high purity processes in nuclear and high-performance fossil fuel power plants; condensate polishing systems and demineralizers; semiconductor and pharmaceutical manufacturing plants; and other industrial applications.