Mounting; Wiring; Sensor Placement - Chauvin Arnoux Statop 4849 Manual De Instrucciones

Mains connection. In the case of a disturbed network (in particular if the installation comprises static
relays operating by adjustment of the phase angle), power the equipment via an insulating transformer
with screen linked to the earth. If the network is likely to be unstable, check that the value of the voltage
supplied remains within the tolerance required by the instrument. If necessary, use a voltage stabiliser.
In the presence of networks with a high level of interference, use the appropriate mains filters.
Do not use the network terminals of the instrument to power the controls (contactors, relays,...)
In a general way, the rules and standards of electrical installations must be followed and earth terminals
must be star mounted to the earth or linked to the protective conductor (equipotential link), with a cross
section at least equal to the cross section of the supply wires.
The enclosures or cupboard must be fitted with a sectioning device (contactors, differentials, fuses,...)
and the power supply of the instruments must be provided from the most direct sectioning device.
2.2

Mounting

Remove any burrs from the cut-out prior to
installation. Take care that metal filings from
panel cut-out do not enter the instrument's
case via the ventilation slots.
Remove the two mounting straps screwed to
the back of the instrument. Introduce the
controller through the front of the panel and
put the mounting straps back in place.
2.3

Wiring

Before wiring, verify the controller label for
correct model number and options.
Supply voltage for the controller must fall
within the range 90...260V AC. The power
supply to the controller should be suitably
protected by a fuse or circuit breaker with a
rating not exceeding 2A.
Either solderless terminals or stripped leads
may be used for wiring connections. Only
stripped leads, should, however, be used for
thermocouple input connections. Unused
terminal screws must not be used as jumper
points, as they may be internally connected.
NOTE : Four types of output can be obtained
from the controller : relay, logic voltage (0/
24V), linear current (4...20mA) or linear
voltage (1...5 V). The external connections
depend on what type of output is installed.
2.4

Sensor placement

Proper sensor position can eliminate many problems in a control system. The probe should be placed so
that it can detect process changes with a minimum of lag time. In a process that requires fairly constant
heat output, the probe should be placed close to the heater. In processes where the heat demand is
more variable, the probe should be closer to the work area. Some experimenting may be required to find
the optimum position for sensor placement.
In a liquid process, addition of a stirrer will help to eliminate thermal lag.
±0,5
45
0
±0,5
45
0
mV
+ -
4
5
STATOP4849
10 9
-
Control output
26
3 mm max.
86 mm
Alarm
2
3 1
8 7 6
~
+