Troubleshooting - Cosmo Multi 3 Montage- Und Bedienungsanleitung

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16. TROUBLESHOOTING

Fuse
If a malfunction occurs, a message will appear on the display of the controller.
WARNING DANGER OF ELECTRIC SHOCK!
Upon opening the housing, live parts are exposed!
Î Always disconnect the device from power supply before open-
ing the housing!
The controller is protected by a fuse. The fuse holder (which also holds the spare fuse) becomes
accessible when the cover is removed. To replace the fuse, pull the fuse holder from the base.
Directional pad flashes red.
Sensor fault. The message !Sensor fault instead of a temperature is
shown on the sensor display channel.
Short circuit or line break.
Disconnected temperature sensors can be checked with an ohmmeter.
Please check if the resistance values correspond with the table.
°C °F
Ω Ω
Pt500 Pt1000
-10 14 481 961
-5 23 490 980
0 32 500 1000
5 41 510 1019
10 50 520 1039
15 59 529 1058
20 68 539 1078
25 77 549 1097
30 86 559 1117
35 95 568 1136
40 104 578 1155
45 113 588 1175
50 122 597 1194
The display is permanently off.
Press button ➄. Display illuminated?
no
Check the power supply of the controller. Is it disconnected?
no
The fuse of the controller could
be blown. The fuse holder (which
holds the spare fuse) becomes
accessible when the cover is
removed.The fuse can then be
replaced.
°C °F
Ω Ω Ω
KTY Pt500 Pt1000
1499 55 131 607 1213
1565 60 140 616 1232
1633 65 149 626 1252
1702 70 158 636 1271
1774 75 167 645 1290
1847 80 176 655 1309
1922 85 185 664 1328
2000 90 194 634 1347
2079 95 203 683 1366
2159 100 212 693 1385
2242 105 221 702 1404
2327 110 230 712 1423
2413 115 239 721 1442
yes
Controller has
been in standby,
everything OK
yes
Check the supply line and
reconnect it.
Ω
KTY
2502
2592
2684
2778
2874
2971
3071
3172
3275
3380
3484
3590
3695