Heat Stress Monitoring System Model RSS-214

Environmental Heat Stress Monitoring
Wet Bulb Globe Temperature Meter (WBGT)

Features

• Intrinsically safe CSA STD C22.2 No. 157-M1987
• High reliability (MTBF=171,000 hrs.)
• Dust and splash-proof construction
• Hand held
• Fast responding (<3 minutes typical)
• Direct reading of outdoor and indoor WBGT, WB, DB or GT Vernon Globe equivalent temperatures
• Calculates time weighted mean WBGT and metabolic rates
• Calculates work rest ratios
• Complete kit
• Individually replaceable sensors
• Self-diagnosis feature at every power-up verifies monitor operation
• Quick in-the-field function check
• Microprocessor based
• Lightweight
• Accurate (calculates to 1/100th degree displays to 1/10th degree)
• Carrying case: high quality, foam-lined, copolymer construction
• Available with optional built-in data logger
• Remote operation option with extention cable
• Choose between ¡ÆC/¡ÆF readings with push of a button
• Output jack for strip chart recorder (0-1V DC)
• Base nut for tripod mounting
• Low battery indicator (rechargeable Ni-Cd)
• Can operate indefinitely on supplied AC adapter
• Windows software

Specifications

• Calibration Range Verified
  • 25¡ÆC
    45¡ÆC
    60¡ÆC
  • Range can be extended to 100¡ÆC/199.9¡ÆF through an optional extension cable
  • WBGT values are calculated as follows:
    WBGT (outdoor) = 0.7WB + 0.2GT + 0.1DB
    WBGT (indoor) =  0.7WB + 0.3GT
  • WB = Wet Bulb
    GT = Vernon Globe equivalent temperature
    DB = Dry Bulb
• Accuracy
  • Resolution 0.1¡ÆC/0.1¡ÆF
  • Electronics Accuracy including Temperature Coefficient ¡¾0.1¡ÆC/0.2¡ÆF
  • Measurement Accuracy ¡¾0.4¡ÆC/0.7¡ÆF within calibration range
• Sensors
  • Globe Temperature: Patented construction provides characteristics indentical to 6" Vernon globe.
  • Dry Bulb: Ambient air temperature
  • Wet Bulb: Wick-covered sensor with reservoir, wetted with deionized or distilled water.
• Battery Life
  Rechargeble  9V Ni-Cd battery gives 17 hours of continuous operation. Charger plugs into monitor. Can operate unit while charging. (Recharges in less than 14 hours.)
• Response Time (to step change in WBGT)
  • Less than 2.2 minutes (2.0 minutes to be stored and output later through a serial port
  • Less than 4.5 minutes (4.2 minutes typical) to the 95% responded level.
  • Notes:
    1. Electronics warm-up takes less than 3 seconds. Provided the sensors are acclimatized, readings taken as soon as the meter reading stabilizes (<3 sec.) are valid.
    2. For most practical purposes, the 95% response time can be considered as fully responded.
• Size
  Dimensions: 15.8 W x 9.5 H x 4.5 D cm (6.2 x 3.75 x 1.75 inches)
  Overall height with sensors attached: 19.8cm / 7.8"
  Weight: 350g (12oz.)
• RSS-214 WiBGeT Comes Completes With:
  • Meter unit, sensors, carry case
  • Water bottle, wet bulb kit, demineralizer
  • Owner instruction manual
  • Function check plug
  • 9V Ni-Cd battery
  • Battery charger
  • Windows software with data logger version

Accessories

• Add-in Data Logger
  • Allows up to 511 records of data to be stored and output later through a serial port.
  • Data can be logged manually or at preselected intervals of 0.5, 1, 2, 5, 6, 10, 20 or 30 minutes.
  • Current sensor data may be viewed while logging.
  • Most recent data is transmitted first (reverse chronological) to your PC.
  • Data is secure -- even if battery fails or is removed.
  • Data output provides: Record number, date and time, WB, DB, In WBGT, Out WBGT.
  • Software provides for data storagem retrieval and calculates time weighted mean WBGT and time weighted metabolic rates.
• Personal Sensor Set (hard hat mounted)
  Allows the RSS0-214 with data l ogger to become a personal WBGT dosimeter
• Remote Sensor Set
  • Sensor assembly extention cable available for indoor or outdoor weatherproof use. Available lengths includes: 20', 50' and 100'.
  • Part #323-2200, 2201, 2202, 2203 (For weatherproof option, add, "wp" to part #.)