Vaisala HUMICAP MMT310 Manuel de service Page 12

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20 21
HMT360 Series Intrinsically Safe Humidity and
Temperature Transmitters
The Vaisala HUMICAP
®
Humidity
and Temperature Transmitter Series
HMT360 are the ideal solution for
measuring humidity in hazardous
areas. They operate safely and
reliably even in the most hazardous
classications. The HMT360
transmitters' proven performance
and technology conform with
rigorous international standards.
Intrinsically safe
The entire HMT360 transmitter can
be installed directly in explosive
areas. It can withstand continuous
exposure to potentially explosive
environments that contain ammable
gases or dust.
Customized configuration
Due to the microprocessor based
electronics, options and accessories,
the HMT360 series is truly exible.
The Vaisala HUMICAP
®
Humidity and Temperature Transmitter HMT361 wall mount
transmitter, shown with six probe options, is designed specifically for hazardous and
explosive environments.
Customers may specify the
transmitter conguration when
ordering the instrument, however
changes in conguration can also
easily be made in the eld.
Interchangeable probes
The HMT360 offers six probe options
for various applications:
HMP361 - wall mount
HMP363 - conned spaces
HMP364 - pressurized spaces
HMP365 - high temperature
HMP367 - high humidity
HMP368 - pressurized
pipelines
The interchangeable probes
enable fast and easy removal or
re-installation when required.
Calibration, for example, is easy
to perform due to the modular
structure. All calibration coefcients
are included in the probe unit itself,
which means that probes can be
switched between transmitter bodies
without losing the accuracy.
Optimized sensors
In addition to the standard Vaisala
HUMICAP
®
Sensor, an application
specic, very chemically durable
sensor is also available.
Long-term solution
The HMT360 transmitters are an
investment; their rugged design,
combined with trouble-free
operation, ensure a long-term
solution for monitoring humidity and
dewpoint in explosive environments.
Customized calibration and
maintenance contracts for the
HMT360 series are available on
request.
Features/Benefits
Measures humidity and
temperature, outputs also
dewpoint, mixing ratio,
absolute humidity and wet
bulb temperature
Safe operation with the entire
transmitter in hazardous areas:
Division 1 and 2 (USA, Canada),
Categories 1G / Zone 0 and
1D / Zone 20 with protection
cover (EU)
Intrinsically safe
Designed for harsh conditions
Vaisala HUMICAP® Sensor
features high accuracy,
excellent long-term stability,
and negligible hysteresis
Six probe options
Temperature range between
-40 … +180°C (-40 … +356°F)
depending on the probe option
NIST traceable (certificate
included)
The HMP361 probe in this picture has
a stainless steel netting filter.
The HMP363 probe is small and fits
into tight spaces. This one is connected
with a teflon cable.
The HMP364 probe is designed for
measurement in pressurized spaces or
vacuum chambers.
41 (1.61)
127 (5)
ø12 (o.47)
86 (3.39)
62 (2.44)
(6.69)
120 (4.72)
(1.14)
(0.55)
2 (0.47)
ø 12 (0.47)
37.5 (1.48)
98.5 (3.88)
Ø12 (0.47)
adjustable
duct wall
flange
drilling 16...22 (0.63...0.87)
50 (1.97)
75 (2.96)
Installation kit for
duct mounting
Installation flange:
aluminum or
stainless steel
Interchangeable Probes for HMT360 Intrinsically
Safe Humidity and Temperature Transmitter
Dimensions
Dimensions in mm (inches)
Dimensions
Dimensions in mm (inches)
Dimensions
Dimensions in mm (inches)
Technical Data
HMP361 for wall mounting
Temperature
range
-40 ... +60 °C
(-40 ... +140 °F)
Probe diameter 12 mm
Technical Data
HMP363 for confined spaces
Temperature range with
teflon cable -40 ... +120 °C
(-40 ... +248 °F)
rubber cable
-40 ... +80 °C
(-40 ... +176 °F)
Probe cable length 2, 5 or 10 meters
Probe diameter 12 mm
Installation
Duct installation kit 210697
Cable Gland M20x1.5
with splitting seal HMP247CG
Swagelok for 12mm
probe, 1/2" NPT
thread SWG12NPT12
Technical Data
HMP364 for high pressure
Temperature range -40 ... +180 °C
(-40 ... +356 °F)
Pressure range 0 ... 10 MPa
Probe cable length 2, 5 or 10 meters
Probe diameter 12 mm
Fitting body M22x1.5 17223
Fitting body NPT1/2 17225
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