Humidity and Temperature Transmitters for Industrial Applications - VAISALA - #8

•!• VAISALA

P.O. Box 26, FI-00421 Helsinki, Finland Tel. +358 9 894 91 Fax: +358 9 8949 2485 Email: industrialsales@vaisala.com www.vaisala.com/HMT330

HMT338 Humidity and Temperature Transmitter for Pressurized Pipelines

• Installed through ball valve

- can be inserted and removed while the process is running

• Adjustable probe depth

• Pressure tolerance 40 bar

• For temperatures -70 ... +180 °C (-94... +356 °F)

. Vaisala HUMICAP' Sensor for excellent accuracy and stability

• Graphical display of measurement trends and over four-year history

• Corrosion resistant IP65 housing

• Two probe lengths available

• NIST traceable (certificate included)

The Vaisala HUMICAP' Humidity and Temperature Transmitter HMT338 is designed for pressurized processes.

With "hot tapping", the probe is inserted directly into the process while it is running, without the need for venting or lowering the process pressure.

The probe is screwed into a ball valve assembly that has been fixed to the process pipe or wall. The adjustable hex nut is hand-tightened to temporarily hold the probe to the process. Then the probe is pushed down to the appropriate depth. The hex nut is tightened with a wrench to lock the probe in its place. Hot tapping is possible in pressures up to 10 bar.

From the display, the user can easily monitor operational data, measurement trends and one-year measurement

history.

The optional data logger with real-time clock makes it possible to generate more than four years of measured history, and zoom in on any desired time or time frame. The battery backup of the real­time clock guarantees a reliable logging of measured data.

The HMT338 incorporates Vaisalas more than 30 years of experience in industrial humidity measurement. The sensor provides accurate and reliable measurement and is immune to particulate contamination and most chemicals.

Temperature measurement range

-70 ...+180°C (-94... +356°F) Operating pressure

_0... 4MPa (0... 40 bar)

Ball valve set BALLVALVE-1

Pressure fitting ISO 1/2 to NPT 1/2 210662

PCsoftware + cable 215005

USB-RJ45 Serial Connection Cable 219685 Connection cable for HM70 211339

Wall mounting plate 214829

(plastic)

Pole installation kit 215108

Rainshield 215109

DIN rail installation set_215094

Dimensions in mm (inches)

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