© Caleffi_20130925_iSolar_WMZ.mon
us.ind
d
| 14
S1
1
2 3 4
5 6
9 10
12 13 14
Netz / Mains
T0,8A
IP 20
20
19
S2
V40
VBus
N
L
CALEFFI
NORTH AMERICA, Inc.
Milwaukee, WI 53208
8. Troubleshooting
Operating control lamp flashes red.
Sensor defect. An error code instead of a
temperature is shown in the correspond-
ing sensor indication channel.
- 88.8
888.8
Line is broken.
Check the line.
Short circuit.
Check the line.
Pt1000 temperature sensors branched off
can be checked with an ohmmeter. In the
table shown below, the resistance values
corresponding to different temperatures
are listed.
Please pay attention to the following items, if the calorimeter
iSolar WMZ is not working properly.
fuse T0,8A
°C
°F
Ω
°C
°F
Ω
-10
14
961
55
131
1213
-5
23
980
60
140
1232
0
32
1000
65
149
1252
5
41
1019
70
158
1271
10
50
1039
75
167
1290
15
59
1058
80
176
1309
20
68
1078
85
185
1328
25
77
1097
90
194
1347
30
86
1117
95
203
1366
35
95
1136
100
212
1385
40
104
1155
105
221
1404
45
113
1175
110
230
1423
50
122
1194
115
239
1442
Resistance values of the Pt1000-sensors
Operating control lamp off.
Check the power supply. Is it disconnected?
no
yes
The fuse of the device
could be blown. It can be
replaced after the front
cover has been removed
(spare fuse is enclosed in
the accessory bag).
Check the supply line and
reconnect it.
