36
All control unit settings, including the default settings,
are reset. The control unit subsequently has to be
readjusted to the system.
Press the following keys:
1.
for
"Default settings"
.
2.
OK to confirm.
3.
for
"Factory setting"
.
4.
OK to acknowledge.
5.
Answer the question
"Delete?"
with
"Yes"
.
6.
OK to acknowledge.
Checking sensors
All temperature sensors used and the temperature
sensors from the accessories range are Pt1000.
Resistance
in kΩ
1.4
1
100
0
10
20
30
40
50
60
70
80
90
1.3
1.2
1.1
Temperature in °C
Fig.14
1.
Disconnect the relevant sensor and measure its
resistance.
2.
Compare the result with the actual temperature (for
scanning, see page 30). In the case of severe devi-
ation, check the installation and replace the sensor
if required.
Specification
IP rating
IP 53
Permissible ambient temperature
■
Operation
−
20 to + 90 °C
■
Storage and transport
−
20 to + 70 °C
Lead length
3.8 m
Checking the actuators (relays)
See chapter "Actuator test" on page 27.
Troubleshooting
Restoring the factory settings (reset)
5517 095 GB
Diagnosis
Summary of Contents for VITOTRANS 353
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