Vaisala DRYCAP DMT345 Uživatelský manuál stáhnout pdf

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DMT345 and DMT346 Dewpoint Transmitters

for High Temperature Applications

The Vaisala DRYCAP

Dewpoint

Transmitters DMT345 and

DMT346 are designed for humidity

measurement in industrial drying

applications with particularly high

temperatures.

Both transmitters incorporate the

Vaisala DRYCAP

sensor, which is

accurate, reliable, and stable. The

sensor is condensation-resistant

and is immune to particulate

contamination, oil vapor, and most

chemicals. The DRYCAP

sensor is

notable for its swift response time

and rapid recovery after getting wet.

Measure Humidity Directly

in Hot Processes

The DMT345 and DMT346 are

built for direct measurement in

hot processes. Therefore, there

is no need for sampling systems

and trace heating. As a result,

high measurement accuracy and

constancy are maintained.

Vaisala DRYCAP

Dewpoint Transmitters DMT345 and DMT346 are designed

to measure and control humidity, especially in dry environments with high

temperatures.

The accuracy and stability of the

DMT345 and the DMT346 are due to

their unique auto-calibration function,

developed by Vaisala. This feature

allows the transmitter to perform

calibration and adjustment by itself

while the measured process is

running. If the measurement accuracy

is not confirmed, corrections are

made automatically. The procedure

is so quick and corrections so

minor that it causes no disruption,

ensuring easy maintenance and high

performance. In normal conditions, it

is recommended to have a traceable

calibration performed once a year.

DMT345: Accurate in Hot

and Dry Environments

The DMT345 is designed for accurate

humidity measurement in hot and

dry conditions. This model provides

unmatched dry-end measurement

accuracy at temperatures up to 140°C;

however, it can operate safely at

temperatures up to 180 °C.

Features/Benefits

▪

The DMT345 measures

humidity at temperatures up to

180 °C (356 °F)

▪

The DMT346 measures

humidity at temperatures up to

350 °C (+662 °F)

▪

Dew point accuracy ±2 °C

(±3.6 °F)

▪

Vaisala DRYCAP® sensor

provides accurate and reliable

measurement with excellent

long-term stability and fast

response time

▪

Condensation-resistant

▪

Unique auto-calibration feature

▪

NIST traceable calibration

(certificate included)

▪

Graphical display and keypad

for convenient operation

▪

Optional alarm relays and

mains power supply module

▪

Analog outputs, RS232/485,

WLAN/LAN

▪

MODBUS protocol support

(RTU/TCP)

The large graphical display allows the

user to check data at a glance.

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Shrnutí obsahu

Strany 1 - DMT345: Accurate in Hot

www.vaisala.comDMT345 and DMT346 Dewpoint Transmitters for High Temperature ApplicationsThe Vaisala DRYCAP® Dewpoint Transmitters DMT345 and DMT346 ar

Strany 2 - Technical Data

Technical DataMeasured Variables DMT345DEW POINT DMT345Sensor Vaisala DRYCAP®180SMeasurement range -40 ... +100 °C (-40 ... +212 °F) TdAccuracy ±2°C (

Strany 3

Technical DataOperating Environment, DMT345 and DMT346 Mechanical durability up to +180 °C (+356 °F) for DMT345of probes up to +350 °C (+662 °F) for D

Strany 4 - Please contact us at

Technical DataDimensionsDimensions in mm (inches)DMT345 and DMT346 transmitter housingDRYCAP® is a registered trademark of Vaisala.169 (6.65)116 (4.57