CMC Airmaster R1, Руководство по установке оборудования

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C.M.C. n.v. - Airmaster R1 installation guide – base unit – V1.1 – MANY0317A.00
Page 17 of 41
6.3.5 ACM type 5: KTY temperature sensor (-10…+132 deg C)
A KTY temperature sensor is a semiconductor sensor. The standard sensor type that is used
is the type KTY10-62 or the less accurate version KTY10-6 or KTY11-6 variant.
6.3.6 ACM type 6: PT100 temperature sensor (-50…+250 deg C)
A PT100 temperature sensor can be connected to the base unit, but only for very short
distances (2 meters). If accurate measurements must be made it is much better to use a
PT1000 temperature sensor. You can run 10 times further with your cable for having the
same error due to the wire resistance as with PT100.
PT100 temperature sensors have a resistance varying with the temperature. When the
temperature is 0°C (32°F) the nominal resistance is 100 ohm. At 200.4°C this resistance is
raised to 176,0 ohm.
Use PT100 sensors with a mean temperature coefficient
α
of
0.003850
ΩΩ
−1
°
C
−1
.
In case of
doubt please contact your sensor supplier. (reference: IEC Publication 751)
The wires to a sensor must be as short as possible and with a big enough section in order to
reduce the wire resistance error.
The wires of a PT100 sensor of the same colour have to be kept together if the sensor has
more than 2 wires.
Connect the shielding of the sensor cable to the earth faston connector of the R1 unit.