62 / 73
61
Analogue interfaces
Zelio Analog
4
Converters for thermocouples and Pt100 probes
Voltage/current converters
Universal converters for Pt100 probes
Pt100 probes with platinum resistor are electrical conductors whose resistance
varies according to the temperature.
This ohmic resistance is transmitted to the Zelio Analog converter which converts it
to a standard signal.
Universal converters for Pt100 probes have :
for inputs, a pre-set temperature range, depending on the model:
-100...100 °C,
- 40...40 °C,
0...100 °C,
0...250 °C,
0...500 °C.
for outputs, a switchable signal:
0... 10 V, 0... 20 mA, 4... 20 mA.
The products in the family Universal converters for Pt100 probes allow wiring of
Pt100 probes in 2, 3 and 4-wire mode.
Optimum converters for Pt100 probes
Derived from the above family, these converters have:
for inputs, a pre-set temperature range identical to that of universal converters for
Pt100 probes.
for outputs: 0...10V signal dedicated to Zelio Logic analogue inputs.
They allow Pt100 probes to be wired in 2, 3 and 4-wire mode.
Universal voltage/current converters
This family of converters allows the adaptation of electrical values (voltage/current).
Four products are available:
a cost effective converter which will convert a 0...10 V signal to a 4...20mA signal
or vice versa.
a Universal voltage/current converter allowing the most common signals. They
have:
for inputs, a voltage/current range:
0...10 V, ± 10 V, 0...20 mA, 4...20 mA.
for outputs, a switchable voltage/current range:
0...10 V, ± 10 V, 0...20 mA, 4...20 mA.
two Universal voltage/current converters which allow conversion of electrical
power signals, both a.c. and d.c.
They have the following, depending on the model:
for voltage inputs
, a range of 0 to 500 V (
a
or
c
)
for outputs, a switchable voltage/current range:
0...10 V, 0...20 mA, 4...20 mA.
for current inputs
, a range of 0 to 15 A (
a
or
c
)
for outputs, a voltage/current range:
0...10 V, 0...20 mA, 4...20 mA.
Description
Zelio Analog converters have the following on their front panel, depending on the
model:
1
Two terminals for
c
24 V supply connection
2
A ‘Power ON’ LED
3
Three input selector switches (depending on model)
4
An output selector switch (depending on model)
5
A sealable protective cover
6
A screw terminal block for inputs
7
A screw terminal block for outputs.
b
v
v
v
v
v
b
v
b
b
b
b
v
-
v
-
b
v
v
-
v
v
-
109000
RMP T70BD
RMC A61BD
109002
3
5
2
6
4
RMC L55BD
7
108998
1
Characteristics :
pages 62 and 63
References :
page 64
Dimensions :
page 65
Schemes :
page 65
Presentation
(continued)
4
1
2
3
4
5
6
7
8
9
10