Thunder Scientific

9500 Automated "Two-Pressure" Humidity Generation System

Automated “Two-Pressure” Humidity Generation System

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9500 Automated Two Pressure Humidity Generation System 14616
9500 system photo lg

 The Model 9500 Humidity Generator is a system capable of producing known humidity values using the fundamental, NIST proven, "two-pressure" principle. The 9500 is capable of continuously supplying an accurately known relative humidity, dew point, frost point, parts per million, or other calculated values for instrument calibration and evaluation as well as precision environmental testing. This system will automatically generate manually entered humidity and temperature set points as well as user created multipoint humidity and temperature profiles. All desired humidity’s, temperatures, test pressures, flow rates, and time intervals may be programmed. Visual indications of system status are displayed in real time on the computer monitor.

• 0.17% * R + 0.016 RH Uncertainty 5,6
• Traceable to SI 8
• High Flow Capability of 10 to 100 L/min
• Based on NIST Proven "Two-Pressure" Principle
• Generate: RH, DP, FP, PPM, Multipoint Profiles
• Computerized Internal Transducer Calibration
• Computes System Uncertainties in Real Time
• Automatically Applies Enhancement Factors
• 9500 ControLog® Embedded Automation Software
• HumiCalc® with Uncertainty Mathematical Engine
Relative Humidity Range (Test Chamber @ 14.7 psiA)5 to 98 %RH
Dew Point Temperature Range (Test Chamber @ 14.7 psiA) –35 to 70 °C
Frost Point Temperature Range (Test Chamber @ 14.7 psiA) –32 to 0 °C
Bath Temperature Range: 1 0 to 72 °C
Bath Temperature Control Stability: 2 0.002 °C
Bath Temperature Heating Rate: from 0 to 72 °C 0.5 °C per Minute (average)
Bath Temperature Cooling Rate: from 72 to 0 °C 0.5 °C per Minute (average)
Chamber Temperature Uniformity: 3 0.008 °C
Gas Type: Air or Nitrogen
Gas Pressure Rating: (MAWP) 350 psiG
Gas Flow Rate Range: 10 to 100 L/min
Gas Flow Rate Specification: ±2% of full Scale
Supply Pressure Specification: ±1.25 psiG
Saturation Pressure - Low Range: Ambient to 45 psiA
Saturation Pressure - High Range: 45 to 325 psiA
Test Chamber Pressure Range: Ambient to 23 psiA
Display Resolution: 0.001
Test Chamber Dimensions: 12" H x 12" W x 12" D (30.5 cm x 30.5 cm x 30.5 cm)
Physical Dimensions: 38.25” H x 60” W x 36” D (97.15 cm x 152.4 cm x 91.44 cm)
Uncertainty
Relative Humidity: 5 to 98 %RH, 10 to 100 L/min 0.17% * R + 0.016
Dew Point: –27 to + 70 °C Dew Point (Ps <= 140 psiA), 10 to 100 L/min 0.03 °C
Dew Point: –35 to –27 °C Dew Point (Ps > 140 psiA), 10 to 100 L/min 0.05 °C
Frost Point: –22 to 0.01 °C Frost Point (Ps <= 100 psiA), 10 to 100 L/min 0.03 °C
Frost Point: –32 to –22 °C Frost Point (Ps > 100 psiA), 10 to 100 L/min 0.05 °C
Temperature: 0 to 72 °C 7 0.015 °C
Test Chamber Pressure: Ambient to 15 psiA 0.0021 psiA
Low-Range Saturation Pressure: Ambient to 45 psiA 0.0042 psiA
High-Range Saturation Pressure: 45 to 325 psiA 0.03 psiA
Utilities
Electrical Power200-220/208-230 V~, 50/60 Hz, 20 A, 3 Ø, 4 Wire
Gas Supply350 psiG @ 100 L/min
Cooling Water2 gpm (8 L/min) Maximum @ 21 °C
Environmental
Operating Temperature15 to 30 °C
Storage Temperature0 to 50 °C
Humidity5 to 95% Non-condensing

 APPLICATIONS

 
The test chamber can accommodate various solid state sensors, chilled mirror hygrometers, psychrometers, hygrothermographs, and material samples for environmental testing. Virtually any humidity and temperature may be generated, for any length of time, within the operational limits of the generator. The output or recording of the device under test may then be compared with the generator’s printed data for analysis.
 
Chilled Mirror Hygrometers: Install the actual chilled mirror head into the chamber or insert a sample tube through the test port and draw a sample through the chilled mirror head and you can: verify mirror temperature measurement accuracy (calibration) when the hygrometer is in thermal equilibrium with its environment; perform operational checks of the heatpump and optical components before and after mirror cleaning and balancing; determine whether the hygrometer is controlling the mirror deposit in the liquid phase or ice phase when operating at dew and frost points below 0 °C; determine if the hygrometer is correctly calculating other humidity parameters; determine hygrometer’s repeatability, stability, and drift characteristics.
 
Humidity Sensors And Chart Recorders: Insert your humidity probes through a test port in the chamber or install the hygrothermograph into the chamber and you can: determine humidity calibration accuracy and/or characterize humidity sensitivity by subjecting the humidity sensor to a variety of humidity levels; perform operational checks such as the sensing systems capability to correctly calculate and display other humidity parameters; determine the repeatability, stability, hysteresis, and drift characteristics of various humidity sensing systems.
 
Environmental Testing: The 9500 can serve as a test bed for evaluation and R&D of humidity sensors, humidity sensing systems, and humidity sensitive products, e.g., polymers, composites, film, magnetic medium, pharmaceuticals, soil hydrology, consumables, electronics, optics, etc.
  • Thumbnail of document 9500 System Manual Ed3 1 19813
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    9500 System Manual Ed3 1 19813

    Download
  • Thumbnail of document 9500 System Specs 2023 08 19811
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    9500 System Specs 2023 08 19811

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