- Model Vapor Pro Series - Moisture Specific Analyzer



A Chemical-Free Alternative to Karl Fischer Titration. The Computrac Vapor Pro provides a GREEN, fast, easy, and cost-effective alternative to Karl Fischer titration methods. It is an ideal choice for companies that want to make quality products as efficiently as possible by saving time and money, improving dryer efficiencies and eliminating costly rework and downtime expenses.


RH-sensor technology measures moisture content and only moisture content.


Sensor-based design means the Vapor Pro needs no harsh or expensive chemical reagents.


Detect as few as 10 micrograms (0.00001g) of water and determine moisture content as low as 10ppm.

Easy to use

The testing process is vastly more simple than Karl Fischer, eliminating potential sources of human error.


Validated in the laboratory by ASTM and in the field by the top plastics, pharmaceutical and lubrication companies in the world.

  • Moisture Range: 10 ppm (10 μg | 0.001%) to 100%
  • Moisture Resolution: 1 ppm (0.1 μg | 0.0001%)
  • Repeatability:
    • ≤15% C.V. for samples <0.1% moisture
    • ≤10% C.V. for samples >0.1% moisture
    • *dependent on sample properties
  • Temperature Range: 25°C to 275°C, controlled to ±1°C of set point
  • Sample Size: 0.01 g (10 mg) to 20 g
  • Results: % Moisture, ppm Moisture, µg Water
  • Ending Criteria: User adjustable: Prediction, Rate, Time, Time then Rate
  • Memory: Stores up to 100 user programs, Retains last 30 sample test runs
  • Statistical Analysis: Mean, Standard Deviation (S.D.), Coefficient of Variation (C.V.)
  • Sensor Calibration: Manual calibration with NIST traceable capillary tubes
  • Power Requirements:
    • 100-120 V~, 50/60 Hz, 8 A maximum or
    • 220-240 V~, 50/60 Hz, 4 A maximum
  • Dimensions: 5.75″ H x 14.5″ W x 14″ D (15 cm H x 37 cm W x 36 cm D) *does not include bottle loader/ramp
  • Weight: 19 lbs. (8.6 kg)
  • Warranty: Two years, factory parts and labor (one year international)
  • Rear Panel Connections:
    • Parallel printer port (PC standard), 9 pin RS-232 (9600,N,8,1),
    • 9 pin Balance Comm, (proprietary protocol and cable), power
    • cable receptacle with RFI filter, carrier gas input and output
  • Side Panel Connections: PC keyboard DIN socket
  • Carrier Gas: Dry nitrogen or dry air (-40°C dew point or lower is suggested) at 17-22 psi (user supplied)
  • Certifications: UL, CE

  • Temperature Calibration Interface (TCI) Module (optional)
  • 21 CFR Part 11 Compliant (optional)
  • No Toxic Reagents or Specialized Glassware
  • Automatic, Menu Driven Operation Requires Minimal User Skills
  • Automatic Sample Loading
  • Self-Diagnostics Alert Operator of any Instrument Problems
  • Security Feature Restricts Access to Program and Instrument Settings
  • Optional Multi-Point Temperature Calibration Module utilizes NIST-Traceable RTD to ±1°C
  • Validation Package and Validation Services Available
  • Real-Time Graph of Moisture Curve and Rate of Moisture Loss
  • Accuracy, Durability, Reliability, Consistency and Speed
  • Continuous Display of Test Time, Current Temperature, Programmed Test Temperature, Current Microgram Water Measurement, and Calculated Moisture Content
  • Statistical Features Calculate Mean, Standard Deviation and Coefficient of Variation (C.V.)
  • Easy Setup of Product Methods to Ensure Optimum Test Results
  • Flexible Ending Criteria to Ensure Accurate Test Results
  • Programmable Temperatures to ±1°C

21 CFR Part 11 Compliant (optional): Meet regulatory compliance standards for pharmaceutical and medical device companies.
 Standard Test Method for Determination of Moisture in Plastics by Relative Humidity Sensor
D7546-15: Standard Test Method for Determination of Moisture in New and In-Service Lubricating Oils and Additives by Relative Humidity Sensor

Part Number: Description
21 CFR: 21 CFR, Part II Compliant
990-0092: Carrying Case Assembly
Y990-0082: External Balance with Cable, 110V
Y990-0098: Parallel Printer Kit, 110V
Y990-0120: Mini Parallel Printer Kit
Y990-0139: Accessory Kit
Y990-0142: Temperature Calibration Interface (TCI) Kit, 110V
Y990-0143: Dry Air Generator Kit 110V
Y990-0163: Validation Protocol (IQ/OQ/PQ) Kit
Y990-0196: Vapor Pro Communications Software Kit
Y990-0249: Technology Transfer Kit

Part Number: Description
200-0002:  Line Cord, 110 V (3 Prong)
690-0012:  Tweezers
990-0064: Bottle Testing Assemblies: 10 standard bottles, black plastic caps and thick septa
990-0074: Thick Septa
990-0150: 1.0 Microliter Microcaps
990-0153: Bottle Testing Assemblies RX/3500; 60mm, 20 mL
990-0197: Black Plastic Caps
990-0206: Metal Cap; High 24/400 Steel
990-0207: Thin Septa
990-0229: High Temperature Sample Bottles
2600 3055: Dessicant, 1 lb.
Y990-0161: Needle Replacement Kit
Y990-0206: 50 Thin Septa & 50 Metal Caps
Y990-0226: Bottle Testing Assemblies: 10 standard bottles, metal caps and thin septa

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