Humdity and Temperature Sensors with EIA485 ouput0 pages

Galltec Mess- und Regeltechnik GmbHt
Boschstr. 4t
D-71145 Bondorf . Germany t
Tel. +49 (0)7457-9453-0t
Fax +49 (0)7457-3758 t
E-Mail: sensoren@galltec.det

MELA Sensortechnik GmbH

Raasdorfer Str. 18
D-07987 Mohlsdorf-Teichwolframsdorf . Germany
Tel. +49(0)3661-62704-0
Fax +49(0)3661-62704-20
E-mail:mela@melasensor.de

I Series
Compact Sensors for Humidity and Temperature
For digital data transfer
RS485 / MODBUS RTU or RS232
Description

IAK...

Mela®-humidity/-temperature sensors in the I series are compact
sensors in a rod-type design with cable, connecting head or
plug-in connection to measure relative humidity and temperature
with high precision in air and other non-aggressive gases. They
can be used for a wide range of applications.
The sensors in this series have got either a RS485-interface
and are suitable for data transfer via MODBUS-RTU protocol
or they have got a RS232-interface and are suitable for data
transfer via ASCII protocol.
All the sensors in this series are supplied with a ZE17-type
gauze filter. We recommend to use a version with other filters
(filter programme see product info sheet no. F 5.1) and a higher
degree of protection if the sensor is used in meteorology, at high
wind speeds or if the sensor is exposed to salt mist, sand or dust
(near the sea, industrial estates etc.).

IRK...

Technical Data
Temperature

Humidity
sensing element

calibrated sensor chip calHT

output range

0...100 %rh

accuracy
t 10...90 %rh t
t < 10 %rh or > 90 %rh t

at 23°C

influence of temperature at 23°C

±1.5 %rh
±2 %rh

<0.05 %rh/K

measuring element (ref. DIN IEC 751)
accuracyt

Pt1000 1/3-DIN cl.B

at 23°C

influence of temperature

±0.2 K
at 23°C

<0.005 K/K

influence Vcc (basis 18V)(MODBUS) with ZE17

<0.01 K/V

General

0.04 %rh/V

power supply, external

5...30 V DC

max. transfer distance RS232/RS485

influence Vcc (basis 18V)(MODBUS) with ZE17

15m/1000 m

ambient temperature

Order designation sensors

-40...85°C

degree of protection
t tip of measuring head
tt
t connectort

Series

I Series

I

design

tube Ø 20 mm alu with plug-in connection

A

tube Ø 20 mm alu with robust head

R

tube Ø 15 mm stainless steel
with robust head

T

consumption of electronics (idling)

humidity and temperature active

K

electromagnetic compatibility

temperature

T

RS232 with ASCII protocol

R

RS485 MODBUS-RTU protocol

M

none

00

vibration protected sealing

0V

pressure-proof

0D

0...100% r.h.

F1

phys. output
output signal
special edition

measuring range 1 F

none

00

measuring range 2 T

-40...85 °C
5...30 VDC
ZE16

17

ZE18

18

ZE20

20

ZE21

21

ZE22

22

ZE16 + element filter PTFE

9G

5-pin plug-in connection (RS232 ASCII)

5S8

7-pin plug-in connection (RS485 ModBus)

7S8

robust head

007

ref. EN 61326-2-3

with coupling IP40
with coupling IP67

16

ZE17

IAKy.02.40-xx.xt --->
IAKy.02.67-xx.xt --->

5

filter

< 1.95 mA

Order reference cable for sensors with plug-in connection
(optional)

48

operating voltage

IP30
(IP54 filter ZE 20/21/22)
IP67

type of connection
and characteristics
design

www.galltec-mela.de

length of cable in meter
R ---> for RS232
M ---> for MODBUS-RTU
Order reference for service cable ModBus-sensors
(optional)
IyKM.02.SK-01.8
A ---> for sensors with plug-in connection
R ---> for sensors with robust head
Galltec+Mela
I Series
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