3
TEMPERATURE PROBES
GENERAL FEATURES
- EC-- series temperature probes are the sensors
used by the control unit to get the information requi-
red for its operation.
- The sensing element is made up of linearised NTC
thermistors.
TECHNICAL DATA
- Cable clamp: G 1/4.
- Operating temperature: - 40 to 150°C.
- Connection between probes and control units by
means of double-wire cable, 1 mm2 min. section and
1000 metres max. length (for higher lengths increase
the cable section to keep resistance constant).
NOTE
: the control unit also works with probes EC01
(outside probe), EC02 (contact probe) and EC03 (im-
mersion probe); resistance values are similar to those
tabulated below.
Resistance values as a function of temperature:
EC11 OUTSIDE PROBE
TEMPERATURE RESISTANCE
°C Ω
DELIVERY PROBES EC12 EC13
TEMPERATURE RESISTANCE
°C Ω
- 40 8629
- 35 7853
- 30 7118
- 25 6433
- 20 5720
- 15 5230
- 10 4770
- 5 4370
0 4010
+ 5 3700
+10 3440
+15 3210
+20 3020
+ 20 550
+ 30 517
+ 40 483
+ 50 448
+ 60 416
+ 70 386
+ 80 360
+ 90 338
+100 320
CONNECTIONS AND TESTS
ELECTRIC CONNECTIONS
Fit a small switch with 1A fuse valves on control unit
supply line for protecting the servo control and turn-
ing off the power when removing the control unit from
the base.
Electric connections between probes and control unit
shall be performed by two-wire cables with 1 mm2
section and max. 1000 metres length; if higher cable
lengths are required, increase the cable section in or-
der to keep cable total resistance constant.
