4000-Series-Transmitter-1024x1024-1

4000 DO Single Channel LDO Analyzer

Oxygen Monitoring with Waltron’s 4000 DO Analyzer for Precision Analysis


The Waltron 4000 DO Analyzer offers precise, user-friendly monitoring of dissolved oxygen. Compatible with the Waltron 9165S Smart Sensor, it has a wide measurement range for diverse water applications. This durable device supports flexible installation and multiple output options, ensuring top-quality water analysis in any setting.


  • Single-Channel transmitter pairs seamlessly with Waltron’s industry-leading 9165S Smart Sensor
  • Easy to configure, capable of displaying dissolved oxygen as ppb, ppm, or %O2
  • Durable 1/2-DIN IP66 NEMA 4X enclosure can be panel, surface, or pipe-mounted
  • Simple, intuitive menu, with soft-touch button controls
  • Two relays and two available 4-20mA outputs
  • Large, clear LCD backlit display
  • Pairs with the Waltron 9165S LDO Smart Sensor for multiple ranges: 0 to 200ppb, 0-2000ppb, and 0-20ppm (sensor-defined)
  • Choice of 12-30VDC or 90-265VAC versions

Specifications


  • Parameter: Dissolved Oxygen
  • Technology: Luminescent (Optical)
  • Range(s): 0-200 ppb, 0-2000 ppb, 0-20 ppm, 0-45ppm (sensor dependent)
  • Accuracy: ±0.5ppb at 1ppb or ±2% of displayed value (whichever is greater)
  • Sample Streams: 1
  • Response Time: t90 < 30 sec
  • Sample Frequency: Continuous
  • Analog Outputs: Single current output, selectable 0-20mA or 4-20mA into 750 ohms max, fully isolated to 2kV. Expandable across the full operating range and offset anywhere in that range. Loop fault detection.
  • Alarms: 2 normally open, fully configurable setpoints, with volt-free contacts for each relay.
  • Calibration Method: Bias/Zero & Sensor Exchange
  • Ambient Conditions: 0-55°C (32-131°F)
  • Sample Temperature: 32-158°F / 0-70°C; 265°F / 130°C high-temperature CIP version available
  • Sample Flow/Pressure: Max 145psig (10bar)

  • Power: Universal 90-265vAC, 10W max LV Option 12-30vDC, 5W max
  • IP Rating: IP 66, NEMA 4X
  • Dimensions: 10 ft (3m). 16 ft (5m). or 32 ft (10m)
  • Weight: 2.2 kg (4.9 lbs)
  • Mounting: Panel, surface, or pipe-mounted
  • Materials: High Strength ABS
  • Sample Connection: 1/4″ (0.635cm) OD Swagelok
  • Maintenance Cycle: Annual zero; biannual sensor spot replacement

4000 Series General Arrangement Drawing