CONTROL SYSTEM
Temperature
[°C]
Resistance
[k
Ω
]
Resistance
[k
Ω
]
-20
7,578
96,360
-15
5,861
75,502
-10
4,574
55,047
-5
3,600
42,158
0
2,857
32,555
5
2,284
25,339
10
1,840
19,873
15
1,492
15,699
20
1,218
12,488
25
1,000
10,000
30
0,827
8,059
35
0,687
6,535
40
0,575
5,330
45
0,483
4,372
50
0,407
3,605
55
-
2,989
60
-
2,490
65
-
2,084
70
-
1,753
75
-
1,481
Sensors features
The temperature sensors used in the hydraulic circuit are
type NTC 10K (10 k
Ω
at 25°C).
The outdoor air sensor is type NTC 1K (1 k
Ω
at 25°C).
When the sensor is at the temperature of 25°C the electrical
resistance measured at the sensor ends is 1 k
Ω
for the NTC
1K sensor and 10 k
Ω
for the NTC 10K sensors.
The thermistor of these sensors has a negative temperature
coefficient : the electrical resistance value decreases when
the temperature increases.
In order to verify if a sensor is faulty or interrupted, check the
correspondence between the resistance value in k
Ω
and the
temperature of the sensor in °C according to the table.
For a reliable check it is not necessary to control each single
value, but some sample values are enough. If the instrument
shows an infinite resistance the sensor is interrupted.
NTC 1K
NTC 10K
Power supply
230 Vac (+10% / -15%)
50 Hz (+6% / -6%)
max 0,5 VA
Communication
wireless BSB bus
frequency 868 MHz
Safety class (EN 60730)
III
Degree of protection (EN 60529)
IP 20
Operating room temperature (not condensing)
0°C ... 50°C
Storing room temperature
-20°C ... 65°C
Wireless repeater
Power supply
2 alkaline batteries 1,5 V type AAA (LR03)
Communication
wireless BSB bus
frequency 868 MHz
Safety class (EN 60730)
III
Degree of protection (EN 60529)
IP 20
Operating room temperature (not condensing)
0°C ... 50°C
Storing room temperature
-20°C ... 30°C
Outdoor temperature sensor cable length
max 5m
Wireless adaptor for outdoor temperature sensor
43
Содержание HSW 11.1
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