Secutech Radio modules ST002020 Scheda Tecnica
Codici prodotto
ST002020
Security & Electronic Technologies GmbH
Page 3
Safety Instructions
During installation and operation of this measurement system in explosive
environments adhere strictly to the operating instructions of the manufac-
turer, take into account all local applicable safety instructions, standards
and technical recommendations.
Take primary ignition prevention measures (e.g. sufficient air circulation,
avoid electrostatic charging and discharging, …).
Take into account the technical recommendations for connecting together
intrinsically safe circuits as per EN 60079-14.
SECU-BAR 125 shall be used for applications only described in this docu-
ment. For improper use or applications it is not designated for and also for
the resulting damages the manufacturer cannot overtake any responsibility.
Modifications on the product, esp. modifications which might have an im-
pact on the level of ignition prevention are prohibited.
SECU-BAR 125 instruments shall be installed and operated by persons on-
ly who are authorised and trained by the plant operator/manager and if they
have studied and understood these operating instructions. The operator of
the plant is responsible for instructing the users.
environments adhere strictly to the operating instructions of the manufac-
turer, take into account all local applicable safety instructions, standards
and technical recommendations.
Take primary ignition prevention measures (e.g. sufficient air circulation,
avoid electrostatic charging and discharging, …).
Take into account the technical recommendations for connecting together
intrinsically safe circuits as per EN 60079-14.
SECU-BAR 125 shall be used for applications only described in this docu-
ment. For improper use or applications it is not designated for and also for
the resulting damages the manufacturer cannot overtake any responsibility.
Modifications on the product, esp. modifications which might have an im-
pact on the level of ignition prevention are prohibited.
SECU-BAR 125 instruments shall be installed and operated by persons on-
ly who are authorised and trained by the plant operator/manager and if they
have studied and understood these operating instructions. The operator of
the plant is responsible for instructing the users.
Product description
Barriers limit the energy which is fed into intrinsically safe lines in a way that
ignition of explosive gas mixtures are impossible. Neither sparks nor exces-
sive surface temperatures can cause explosions. The barrier is installed
outside the hazardous area. The output provides an intrinsically safe power
line for electrical equipment in the Ex-zone. The maximum input voltage U
ignition of explosive gas mixtures are impossible. Neither sparks nor exces-
sive surface temperatures can cause explosions. The barrier is installed
outside the hazardous area. The output provides an intrinsically safe power
line for electrical equipment in the Ex-zone. The maximum input voltage U
M
must not be exceeded to ensure the ignition prevention level.
SECU-BAR 125 is an active barrier for supplying intrinsically safe applianc-
es in Ex-zones, like SECU-DATA instruments. The unsafe DC-power sup-
ply in the range 18 … 36 V is connected to the input IN of the SECU-BAR
125. The output current is electronically limited to max. 130 mA (rated value:
125 mA) and the output voltage is limited to max. 25.2 V to achieve the in-
trinsic safety as per EN 50020. SECU-BAR 125 is protected against reverse
polarity and provides an output voltage with ignition prevention level
“ia“ and an output current with ignition prevention level “ib“. SECU-BAR 125
provides extra high current output current and stable output voltage inde-
pendent from the load current in comparison to classic, passive diode barri-
ers which opens universal fields of applications.
SECU-BAR 125 is an active barrier for supplying intrinsically safe applianc-
es in Ex-zones, like SECU-DATA instruments. The unsafe DC-power sup-
ply in the range 18 … 36 V is connected to the input IN of the SECU-BAR
125. The output current is electronically limited to max. 130 mA (rated value:
125 mA) and the output voltage is limited to max. 25.2 V to achieve the in-
trinsic safety as per EN 50020. SECU-BAR 125 is protected against reverse
polarity and provides an output voltage with ignition prevention level
“ia“ and an output current with ignition prevention level “ib“. SECU-BAR 125
provides extra high current output current and stable output voltage inde-
pendent from the load current in comparison to classic, passive diode barri-
ers which opens universal fields of applications.