Specifications

15
FEATURES/BENEFITS
 HUMICAP
®
sensor
 0 to 100% RH measurement
 Wide temperature measurement range
HMP 35E: -40...+140 °F (-40...+60 °C)
HMP 36E: -40...+176 °F (-40...+80 °C)
HMP 37E: -40...+248 °F (-40...+120 °C)
 NIST traceable certificate of calibration is supplied
HIGH PERFORMANCE IN ALL
ENVIRONMENTS
The HMP 35E, HMP 36E, and HMP 37E probes
feature Vaisala's HUMICAP
®
humidity sensor which
is known for its high accuracy, excellent long-term
stability, negligible hysteresis, and its resistance to
dust and most chemicals. Reliable and rugged, these
probes are designed specifically for use with the
HMI 38 Humidity Data Processor.
The HMP 35E is for general purpose measurements
where the temperature normally stays below 140 °F
(60 °C) and never exceeds 176 °F (80 °C).
The rugged HMP 36E is designed for continuous use
in temperatures up to 176 °F (+80°C), but can
withstand temperatures up to 320 °F (160 °C) for a
short while. Its long stainless steel shaft works well
in difficult-to-reach areas, and can also be used as a
piercing probe.
The versatile HMP 37E is designed for temperatures
up to 248 °F (120 °C), but it can be used in short-term
measurements in temperatures as high as 356 °F
(180 °C). The HMP 37E is ideally suited for use in
tight and difficult-to-reach areas.
EASY AND QUICK CALIBRATION
The HMP 35E, HMP 36E and HMP 37E probes are
easy to calibrate either at one point against an
accurate reference instrument, or at two points in
controlled laboratory conditions. Temperature
calibration can be done with the software commands
alone, while humidity calibration requires potenti-
ometer adjustment at the probes.
Humidity and Temperature Probes for
HMI 38 Humidity Data Processor/Calibrator
HMP 35E
HMP 36E
HMP 37E