3154 Filming Amines Analyzer

3151 Hardness Analyzer

Precise Ammonia Monitoring with Waltron’s Easy-to-Maintain Analyzer


The Waltron 3151 Calcium Hardness Analyzer provides accurate, repeatable online analysis of low-level calcium hardness in clean water. Using proprietary colorimetric chemistry, it delivers precise results (+/- 5ppb). Its touchscreen interface simplifies operation, while the fast-loop reservoir enables accurate, independent measurements. The 3151 automates tests for early detection of hardness changes.


  • Accurate and wide-range analysis (PPB & PPM)
  • 100% tooless wet section
  • Pre-assembled pump/sample heads for quick changeout
  • Automatic calibration and validation (QA/QC)
  • Color touchscreen display
  • Grab sample capability
  • Internal datalogger with easy USB port on door
  • Standard motion sensor LED light and color active alarm indicators
  • Automatic start/stop based on sample flow detection with internal loop low reservoir

  • Parameter: Ammonia
  • Technology: Colorimetric
  • Range(s): 0-1000ppb
  • Accuracy: (+/– 5) ppb or (+/– )2% of reading
  • Sample Streams: 1 to 2
  • Response Time: ~12 minutes, batch process
  • Cycle Time: One reading every 20 mins, adjustable
  • Analog Outputs: 4-20mA (galvanic isolator option) or 0-5V
  • Alarms: 2 or 4 configurable alarms (result, loss of sample, fault)
  • Calibration Method: Automatic
  • Calibration Frequency: One reading every 20 mins, adjustable
  • Ambient Conditions: 10-45°C analyzer (50-113°F)
  • Sample Temperature: 5-55°C (41-131°F)
  • Sample Flow/Pressure: 100–500 ml/min; atmospheric

  • Power: 110-220VAC
  • IP Rating: IP65/NEMA4X
  • Dimensions: 24x15x8.5 (60x38x21cm)
  • Weight: 38lbs / 17kg
  • Mounting: Panel/Wall
  • Materials: Corrosion-resistant Stainless Steel
  • Sample Connection: 1/4 (0.635cm) OD Swagelok
  • Maintenance Cycle: Monthly reagents, quarterly tubing