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Technical data

Dewpoint temperature Operating environment

Measurement range (typical)-60 ... +60 °C (-76 ... +140 °F)Analog output scalingsOption A-80 ...+20 °C (-112 ... +68 °F) T Temperature0 ... +60 °C (32 ... +140 °F)higher temperature peaksShort-term OKRelative humidity0 ... 100 %RH Pressure0 ... 20 bara (0 ... 290 psia) Sample flow rateno effect
d Option B-60 ... +40 °C (-76 ... +104 °F) T
d Option Xfree scaling(when the dewpoint is below 0 °C (32 °F), the transmitter outputs frostpoint)Accuracy with DRYCAP
® 180M±2 °C (±3.6 °F)(see graph below)

Output

Analog output4 ...20 mA Resolution for analog output±0.002 mA Typical temperature dependence0.0008 mA/ °C Serial line for service useRS232

General

SensorDRYCAP
® 180MOptimal sensor for refrigeration dryersDRYCAP
® 180SOperating voltage18 - 35 VDC, 20 - 28 VAC Power consumption at 24 VDCmax. 220 mA External load for analog outputmax. 500 Optional connection cable with DMT242 connector2 m or 10 mConnector for supply voltage and signal outputmax. wire size0.75 mm
DEWPOINT ACCURACY VS. MEASUREMENT CONDITIONS Response time 63 % [90 %] at +20 °C gas temperatureFlow rate >1 l/min and 1 bar pressure-60 -> -20 °C Td (-76 -> -4 °F Td)5 s [10 s] -20 -> -60 °C Td (-4 -> -76 °F Td)45 s [10 min]Accuracy with DRYCAP
2 max. cable diameter6.5 mm /PG7Service cable for serial interface RS232product code DMT242RSProbe material (wetted parts)stainless steel(AISI 316L) Sensor protectionstainless steelsintered filter (HM47280)Mechanical connectionG½” ISO228-1 thread with bonded seal ring (U-seal) Eletronics housing materialplastic (ABS/PC) Housing classificationIP65 (NEMA4) Storage temperature range-40 ... +70 °C, (-40 ... +158 °F) Complies with the EMC standard EN61326-1, Electrical equipment for measurement, control and laboratory use - EMC requirements; Industrial environment.
® 180S±2 °C (±3.6 °F)(see graph below)
Water vapor saturation line 102030506070 -10-20-30-50-40-70

Accuracy -60 Dewpoint measurement range lower limit Dewpoint temperature (°C) -80 204060 040 301050

Process temperature (°C)

For more information, visitwww.vaisala.com or contact us at sales@vaisala.com Ref. B210765EN-A ©Vaisala 2009 This material is subject to copyright protection, with all copyrights retained by Vaisala and its individual partners. All rights reserved. Any logos and/or product names are trademarks of Vaisala or its individual partners. The reproduction, transfer, distribution or storage of information contained in this brochure in any form without the prior written consent of Vaisala is strictly prohibited. All specifications — technical included — are subject to change without notice.