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Almemo: Hygrometer, Dew Pt & Thermometer

Humidity measurement with very high resolution, precision,and linearity using Pt100 psychrometer.

Suitable as reference device in calibration laboratories and for quality assurance procedures.

A very high level of accuracy is achieved using the Pt100 psychrometer - a factory multi-point adjustment is made to optimise accuracy.

The Pt100 psychrometer is optimized by utilising high humidity levels over long periods of time.

Automatic atmospheric pressure compensation is made for pressure-dependent humidity variables by means of a digital atmospheric pressure sensor which is integrated in to the ALMEMO device.

Humidity calculations are based on the formulae of Dr. Sonntag and enhancement factors used are as per W. Bogel (correction factor fw(t,p) for real mixed gas systems) This substantially widens the measuring range and improves the accuracy of the humidity variable calculations.

Resolution parameters - temperature Pt100 0.001 K, - relative humidity 0.01%, - dew point 0.01 K

The humidity variables are calculated from the three primary measuring channels (real measurable variables). Dry temp.(°C), humid temp. (°C), atmospheric pressure (mbar).

3 humidity variables can be displayed simultaneously and are freely selectable.
Relative humidity (%), dew point (°C), mixture (g/kg)
Absolute humidity (g/m³), vapour pressure (mbar), enthalpy (kJ/kg)

2 electrically isolated measuring inputs for Pt100 sensors

High-resolution A/D converter, delta-sigma, 24-bit, 1.25 mops (measuring operations per second)

Two output sockets for digital interface
ALMEMO memory connector
Compact, modern, ergonomic design
Graphics display, illuminated with white light

Easy and convenient to operate - by means of 4 soft-keys and a cursor block

Measured value display:
Sensor display (up to 4 measured values), measuring points list, atmospheric pressure
Measuring functions: Zero-setting, smoothing, maximum / minimum values, individual value memory for 100 values

Data logger with ALMEMO memory connector (Accessory)

Sensor programming: Smoothing, designation, measuring range selection, locking
Device configuration: Illumination, contrast, device address, baud rate, atmospheric pressure

Choice of language: German, English, French

Humidity measurement in temperature range -100 to +200 °C

With high-precision digital capacitive temperature / humidity sensors FHAD 36 Rx, With ALMEMO D6 plug


If you are not sure what you are after or are in a hurry, call us today and talk to an expert on industrial instruments.

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+64 9 633 0040
5 / 343 Church Street | Onehunga
Auckland 1061, New Zealand