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Am Gut Wolf 15
52070 Aachen
GERMANY
Tel: +49 (0)241 910501-0
Fax: +49 (0)241 910501-38
E-mail: info@zander-aachen.de

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SCB
Safety Timer

The SCB is a universally applicable safety timer, with which the moving parts of a machine or plant can be brought to a standstill quickly and safely. Depending upon the configuration, the safety outputs connect on-delay, off-delay or without delay independent of one another. A simple and accurate time parametrization is possible with a push/rotary button and the display.

Extensive monitoring measures are indicated on the display with detailed error messages. Thus, the SCB not only offers the clear and simple functionality of a safety relay, but also the advantages of safety control devices.

Additionally, the diverse outputs enable a safe shutdown of furnaces in continuous operation according to EN 50156-1 and EN 746-2.

The safe mini timer SCB replaces obsolete pneumatic time relays

Previously used pneumatic time relays usually no longer meet the state of the art. A standard-compliant protection of the system is therefore no longer possible.

The SCB ensures the current state of the art both in the case of a retrofit and when new burner systems are installed, thus ensuring conformity with the applicable standards.

No matter in which industry they are needed: we have the right type of safety time relay:

 

Type

Safety contacts /outputs

(NO)

Auxilliary contacts / outputs

(NC)

1 / 2 channel wiring

Width in mm

Industry / Certificates

Safety

Timer

SCB-04

4

2

1/2

22,5

SCB-03

3

2

1/2

22,5

SCB-02

2

2

1/2

22,5

 

All these variants are available with the following adjustable delay times:

  • up to 99 sec
  • up to 99 min
  • up to 99 h

NEW:

New switching function of the auxiliary outputs ease the retrofit

With the new variants of the mini safety timer SCB (e.g. SCB-02-01) you have the possibility to integrate the auxiliary outputs, analogue to the classic relay technique, inverted to the control concept. Especially in the case of a retrofit, it ease the exchange of an old, not state of the art pneumatic time relay.

New function for an automatic re-triggering leads to less system downtime as well as less intervention through the operating personal

The switch-off delay parameterised on the SCB can be used to filter a brief triggering of a limit monitor so that brief triggering of limit monitors, e.g. temperature, pressure or flow rate, must not lead to a switch-off.

New SCB function for a delayed reset signal for preventing accidental confirmations

With the new "delayed resetting" function, the danger of an accidental reset of the safety system can be prevented.

 

More Information: