SAM #NIST-SS26-137

Market Research for Metrology-grade Chilled Mirror Dew Point Hygrometers

NIST is conducting market research for metrology-grade benchtop chilled mirror dew point hygrometers to support precise environmental monitoring in mass calibration activities. - Government Buyer: - National Institute of Standards and Technology (NIST) - Mass and Force Group, Quantum Measurement Division, Physical Measurement Laboratory - Acquisition Management Division, Gaithersburg, MD - Products/Services Requested: - Metrology-grade benchtop chilled mirror dew point hygrometer - Key technical requirements: - Dew point range: -60°C to 20°C - Relative humidity (%RH) range: 0.1% to 100% - Frost/dew point accuracy: ±0.1°C - Temperature accuracy: ±0.07°C - 3-stage thermoelectric mirror cooling, air cooled - Active-Matrix color LCD display - RS-232 input/output communication - Swagelok gas coupling for sample gas - Sample gas flow: 0.2–1.0 l/min - PTFE sample gas circuit, max pressure 2 bar - Operating temperature: -10°C to +40°C - Ambient humidity: max 90% RH (non-condensing) - Power: 100–240 VAC, 50/60 Hz, 200 Watt - Dimensions: 440mm x 155mm x 410mm; weight: approx. 12 kg - Respondents must provide manufacturer, model, specifications, and service details - OEMs and Vendors: - No specific OEMs or vendors are named; responses should include manufacturer information - Unique Requirements: - Equipment must be suitable for metrology-grade mass calibration - Must include RS-232 communication and Swagelok gas coupling - High accuracy and reproducibility are required - Place of Performance and Delivery: - NIST, Gaithersburg, Maryland (Physical Measurement Laboratory)

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