Mounting And Installation - S+S Regeltechnik THERMASREG FS-20 Mode D'emploi

G

Mounting and Installation

NOTES REGARDING
– Please ensure that the minimum temperature at the capillary
does not develop at the device's housing or at the sensors
(installed inside the housing).
– The limit value must actually be exceeded over more than
20 cm of the length of the capillary. This necessary minimum
length of 20 cm may subdivide into several sections.
– The capillary tube must not be bent several times or kinked.
This could cause leakage and the system's failure to function.
– The voltage output is short-circuit proof.
– Applying overvoltage will destroy the device.
– If this device is operated beyond the specified range,
all warranty claims are forfeited.
SUPPLY VOLTAGE :
For operating voltage reverse polarity protection, a one-way rectifier or
reverse polarity protection diode is integrated in this device variant.
This internal one-way rectifier also allows operating 0 - 10 V devices on AC
supply voltage.
The output signal is to be tapped by a measuring instrument. Output
voltage is measured her against zero potential (O V) of the input voltage!
When this device is operated on DC supply voltage, the operating voltage
input UB+ is to be used for 15...36 V DC supply and UB – or GND for ground
wire!
When several devices are supplied by one 24 V AC voltage supply, it is to be
ensured that all "positive" operating voltage input terminals (+) of the field
devices are connected with each other and all "negative" operating voltage
input terminals (–) (= reference potential) are connected together (in-phase
connection of field devices). All outputs of field devices must be referenced
to the same potential!
In case of reversed polarity at one field device, a supply voltage short-
circuit would be caused by that device. The consequential short-circuit
current flowing through this field device may cause damage to it.
Therefore, pay attention to correct wiring!
Mounting
diagram
Connecting scheme
Power supply
AC 24V~ 0V
DC 15-36V = GND
Connecting scheme
Power supply
AC 24V~ 0V
DC 15-36V = GND
15
Individual operation
Circuitry
V
Parallel operation
Circuitry Circuitry
FS-20