DPT146 Dewpoint and Pressure Transmitter


Catalog excerpts

DPT146 Dewpoint and Pressure Transmitter - 1

DPT146 Dewpoint and Pressure Transmitter for Compressed Air Features • The first transmitter that monitors both dew point and process pressure • A simple and convenient transmitter for monitoring of compressed air • Highly accurate humidity information thanks to dew point data coupled with live pressure input • Proven sensor technology • Compatible with Vaisala HandHeld Meter DM70 for easy spot checking, local display and data logging Vaisala Dewpoint and Pressure Transmitter DPT146 for Compressed Air makes monitoring compressed air simple and convenient. DPT146 measures both dew point and process pressure simultaneously, and is the ideal choice for anyone using or monitoring compressed air. Simple and Efficient Installation One transmitter providing two of the most important compressed air measurements means reduced installation costs and a much easier setup - with only one instrument needing connection and wiring. Make More Informed Decisions Dew point measurement combined with process pressure measurement offers further unique advantages. When dew point data is coupled with live pressure input, conversions to atmospheric pressure or ppm are available online, leaving no ambiguity in the information. As an example, regulative requirements of medical gas can be fulfilled easily and quickly. A Unique Combination of Two World-Class Sensors DPT146 combines the knowledge of more than 20 years of sensor technology development. Proven measurements from DRYCAP® sensor for dew point and BAROCAP® sensor for pressure are now combined into one easy-to-use transmitter. Convenience with Proven Performance Well-developed technology brings both proven results and convenience. Spotchecking and verification of dew point is easy thanks to fully compatible Vaisala DRYCAP® Hand-Held Dewpoint Meter DM70. The meter can also be used as a local display and data logger. Temperature measurement is available when RS-485 is in use. • Pressure: 1 ... 12 bar • Dew point: -70 ... +30 °C (-94 ... +86 °F) • Digital output RS-485 with Modbus

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DPT146 Dewpoint and Pressure Transmitter - 2

Parameters Measured Parameters Dew point Pressure, absolute Temperature (available if output RS-485 only selected) Calculated Parameters ppm moisture, by volume Dew point, converted to atmospheric pressure Measurement Performance Sensor Dew point accuracy Pressure accuracy at 23 °C (73.4 °F) Pressure temperature dependence ppm accuracy (7 bar) Temperature Accuracy 0 ... 40 °C (+32 ... +104 °F) -40 ... 80 °C (-40 ... +176 °F) Sensor Response Time Pressure response time Dew point response time 63 % [90 %] at 20 °C and 1 bar: -50 ^ -10 °C Tdf 5 s [10 s] Vaisala MPS1 multiparameter sensor ±2 °C...

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