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32

HMM210 Series Humidity Modules

for Environmental Chambers

The Vaisala HUMICAP

®

Humidity

and Temperature Module Series

HMM210 are designed for OEM type

applications needing humidity or

dewpoint measurement in demanding

environments, e.g. in environmental

chambers, growth chambers and

incubators.

Demanding Applications

The HMM210 modules are optimized

for harsh environments with

both high humidities and a wide

temperature range. The humidity

measurement is fully temperature

compensated. In addition, the

modules remain accurate and reliable

under extreme conditions where a

combination of high humidity and

rapidly changing temperature can

result in condensation on the sensor

head.

The modules are highly versatile

and flexible. They provide either

Vaisala HUMICAP

®

Humidity and Temperature Module Series HMM210

provide fast real-time measurement in a wide temperature range. The

modules are especially suitable for demanding OEM applications,

e.g. environmental chambers and incubators.

relative humidity and temperature or

dewpoint measurement with various

configurations. All modules have

microprocessor based electronics

and are equipped with analog or

digital outputs.

Unique Warmed Probe

The warmed probe and composite

sensor, available on the dewpoint

probe configuration, is warmed to

always remain a few degrees higher

than ambient. Advantages of this

patented technique include:

• Nocondensationproblemsonthe

probe, as the temperature of the

probe always remains higher than

the ambient.

• Fastresponsetime,especiallyin

rapidly changing temperatures.

• Improvedstabilityandaccuracyin

high humidities.

Vaisala HUMICAP® Sensor

and Chemical Purge

Option

The HMM210 modules use

Vaisala HUMICAP

®

180R sensors

for best possible stability. The

sensor is insensitive to dust and

to most chemicals. In conditions

of extraordinary high levels of

chemicals and cleaning agents,

chemical purge is available as

an option. With chemical purge,

contaminants are evaporated from

the sensor and performance is

returned to normal.

Features/Benefits

▪

Three probe configurations:

▪

Relative humidity (RH) plus

temperature (T) probe.

▪

Dewpoint probe with probe

heating. By heating the whole

probe a few degrees above

ambient condensation is

avoided.

▪

Dewpoint probe described

above, together with a

temperature probe for

obtaining relative humidity and

temperature outputs.

▪

Three module configurations

▪

Different probe and cable

lengths

▪

Chemical purge option

maintains high measurement

performance in demanding

chemical conditions.

▪

Calibration certificate included

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