Datasheet

ManualsBrandsE+E Elektronik ManualsClimatic SensorsDew Point Meter 20 °C 4 to 20mA

v1.6 / Modification rights reserved

EE371

The exact monitoring of dew point temperature in

compressed air systems, dryers for plastic and other industrial

processes is becoming increasingly more important.

EE371 series with a measuring range -60...60°C Td

(-112...140°F Td) is the ideal solution for such applications.

The core of the transmitter is the monolithic measurement cell

type HMC01, developed by E+E Elektronik in thin-film technolo-

gy.

An autocalibration procedure which is integrated in the device

and years of experience in low humidity adjustment make an

accuracy of <2°C Td

(±3.6°F Td) possible.

The compact construction in a robust aluminium housing and

the numerous options allow easy mounting and many applicati-

on possibilities.

EE371

Compact Dew Point Temperature

Transmitter / Switch

Dew point temperatures in the range of -60...-20°C (-76...-4°F) at room temperature correspond to relative

humidity values of 0.08...5.37% RH. The measurement of these low humidity values is not possible with

conventional capacitive measurement methods. For the EE371 series a special autocalibration procedure is

utilized to achieve high accuracy measurements at lowest dew points too.

Autocalibration

Outputs

Model T: The transmitter has two freely selectable and scaleable outputs for dew point, frost point or ppm

volume concentration.

Model S: The switch with two relay outputs is designed for control and alarm purposes. The status for early

warning and main alarm is indicated by LED's. Adjustment of the Td/Tf set point and hysteresis can

be achieved with the optional configuration software.

Configuration Software

The optional configuration software allows flexible and easy adjustment of the analogue resp. relay outputs

to the respective requirements.

The adjustment / calibration of the transmitters can easily be performed.

Screw Connection for Mounting - 360° positionable

The construction of this screw connection enables any

position / rotation of the mounted transmitter.

So an optimal position of the display resp. the cable

outlet is guaranteed.

monitoring of compressed air systems

refrigerant type dryer

absorption dryer

plastics dryer

Typical Applications Features

measuring range -60...60°C Td (--76...140°F Td)

accuracy of measurement ±2°C Td (±3.6°F Td)

two Td/Tf alarm outputs

autocalibration

pressure tight up to 100 bar

(1450psi)

EE371

Summary of content (4 pages)

PAGE 1
EE371 Compact Dew Point Temperature Transmitter / Switch The exact monitoring of dew point temperature in compressed air systems, dryers for plastic and other industrial processes is becoming increasingly more important. EE371 series with a measuring range -60...60°C Td (-112...140°F Td) is the ideal solution for such applications. The core of the transmitter is the monolithic measurement cell type HMC01, developed by E+E Elektronik in thin-film technology.
PAGE 2
Technical Data Measuring Quantities Dew point (Td) Dew point sensor Measuring range Accuracy HMC01 -60...60°C Td (-76...140°F Td) Traceable to intern. standards, administrated by NIST, PTB, BEV... dew point temperature (°C) 80 Response time t90 60 40 20 0 -40 -20 -40 -60 -30 -20 0 20 10 30 40 50 60 Accuracy ≤ ±2°C Td (≤ ± 3.6°F) process temperature (°C) 80 sec. 10 sec.
PAGE 3
Basic Sampling Cell The basic sampling cell offers the possibility to integrate the EE371 into an existing or self-constructed sampling system. Pressure range: 0...64 bar (0...928 psi) 1 = G 1/2“ ISO or 1/2“ NPT 2 = G 1/4“ ISO or 1/4“ NPT 3 = G 1/4“ ISO or 1/4“ NPT 1 2 3 Sampling Cell with Quick Connector The sampling cell is specially developed for use in compressed air lines and has a quick-connector suitable for standard compressed air connections.
PAGE 4
EE371 v1.