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ILK
Technical data
Humidity
Sensing element
Output range
Accuracy
30...80 %rh
at 10...40°C
< 30 %rh or > 80 %rh
at 10...40°C
Influence of temperature < 10°C or > 40°C typ.
Temperatur
Sensing element
Output ranges
Accuracy
at 10...40°C
<10°C and >40°C
Electrical data
Power supply, external
Max. transfer distance RS232/RS485
Consumption of electronics
Directive about electromagnetic compatibility 2014/30/EU
DIN EN 61326-1 ............................................. issue 07/13
DIN EN 61326-2-3 .......................................... issue 07/13
ILW
calibrated sensor chip calHT
0...100 %rh
3 %rh
±
5 %rh
±
0.06 %rh/K
±
calibrated sensor chip calHT
-40...+85°C
±0.8 K
see diagramm
6...30 VDC
15m/1000 m
< 1,0 mA
Product info sheet IL Series digital
Humidity/-temperature sensors for digital data
transfer RS485 / MODBUS-RTU or RS232 for
use in heating, ventilation and air conditioning
• Two designs
duct version
wall mounting
• Different
humidity and temperature and all
physical
hx values
outputs
• Output signals
RS232 with ASCII protocol
RS485 with Modbus RTU protocol
• Special versions
sealing for increased
sealing against vibrations
• Filter
protective basket ZE07 (IP 00)
filter with membrane ZE08 (IP30)
PTFE sintered filter ZE05 (IP65)
1) The accuracy of the calculated values depends on both the opera-
ting point in accordance with the hx diagram and on the primary values
measured. The hx processor operates in the range -30°C < T < +70°C,
5% rh<F<95% rh. Values outside this range are not calculated, the last
valid value is displayed. Normal atmospheric pressure of 1013.25 mbar
is used when calculating the hx values.
General data
Measuring medium
Min. air speed
Operating temperature
Storage temperature
Degree of protection of measuring head
with protective basket ZE07
with membrane filter ZE08
with PTFE sintered filter ZE05
Degree of protection housing
Material of housing
(ILW)
1)
requirements, e.g. condensation
air, pressureless,
non-aggressive, non-condensing
0.5 m/s
-40...+80°C
-40...+85°C
IP00
IP30
IP65
IP65
PC (light grey / white)
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Summary of Contents for ICS IL Series
- Page 1 Product info sheet IL Series digital Humidity/-temperature sensors for digital data transfer RS485 / MODBUS-RTU or RS232 for use in heating, ventilation and air conditioning • Two designs duct version wall mounting (ILW) • Different humidity and temperature and all...
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Page 2: Connection Diagram
Temperature accuracy of the sensors Working range of humidity and temperature % r.h. 100% recommended working range -40°C 0°C 40°C 80°C Accessories Designation Order reference Info sheet Description Sub-D Sub-D data line up to max. 15 m for direct connection to serial PC interface; data line (e.g. - Page 3 Product Key IL Series digital The 16 character alphanumeric order number for the desired type is composed of the order code listed below. 14 15 16 9 10 12 13 Series Design Physical outputs Output signals Operating conditions / Special versions...
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Page 4: Ordering Example
Dimensional drawing series ILW Dimensional drawing series ILK 41,5 Ordering Example Series: IL Series Design: Duct version Physical outputs: active outputs Output signals: MODBUS RTU Operation conditions / special versions: Sealing against vibrations Measured variable and output range 1: Measured variable and output range 2: Supply voltage: 5...30 V DC... - Page 5 Mounting and user information Position Install the sensor at a place where characteristic levels of humidity occur. The sensor tube resp. measuring head or measuring chamber should be exposed to the flow of air. Avoid installation next to heaters, doors or on outer walls. Avoid places exposed to the sun. Not reaching the given mini- mum air speed can lead to measurement errors.
- Page 6 RS485 with MODBUS-RTU Protocol Serial interface The following parameters are possible for data transfer via the EIA-485 interface on the ModBus sensors made by ® Mela • Baud rate: 19200 / 9600 / 4800 / 2400 / 1200 / 600 •...
- Page 7 Table 2 lists all the possible alarm register values when measuring temperature (reg. no. 2). Alarm code Meaning no alarm, the temperature value is within the limits no sensor element detected Table 2 - alarm codes temperature Table 3 lists all the possible alarm register values when measuring humidity (reg. no. 5). Alarm code Meaning no alarm, the humidity value is within the limits...
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Page 8: Operation
Operation To connect directly to a PC, all you need is an integrated RS485 interface or an external adaptor. Mains power can also often be supplied in this way. A software program such as Modbus Poll will then assume the role of the master. Further measures must be taken for more challenging applications in the network, for long distances and/or in environments with electromagnetic interference. - Page 9 Table 1 lists all the possible values when measuring temperature Alarm code Meaning No alarm, the temperature value is within the limits no sensor element detected Table 2 lists all the possible values when measuring humidity Alarm code Meaning no alarm, the humidity value is within the limits no sensor element detected The sum is calculated according to the following algorithm with reference to example 1: Add up the decimal representation of all ASCII characters from “@“...
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