Control units Extraction arms_EN
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CONTROL UNITS LOCAL EXTRACTORS Fumex’s control unit offers a good working environment, adapted to all types of facilities. The right choice of control units is also very energy-saving and provides the lowest possible noise levels. Control automation encompasses specially adapted and proven components, as well as recommendations for appropriate system selections. In the installation examples on pages 2 through 5, there are suggestions for various solutions to help finding systems to satisfy most needs. Local extraction arms are presented in various system solutions in the examples. Automation can even be used in other applications, such as when connecting extractors directly to machinery. For control of automotive exhaust installations, see the control automation for exhaust extraction. Most types of sensors such as for gas, heat, light and vibrations can be combined with the S 200 and S 400 control units. For help with optimising extractor installations or calculating energy savings, please contact Fumex. Fumex also offers a range of local extractors, fans, accessories and filters to our local extractors. LOCAL EXTRACTORS Pure advantage

Start and stop of fans, with or without speed control. System 1:1 Manual start and stop of fan The fan is manually started and stopped with a protective motor switch SMB. The protective motor switch has a thermal-magnetic release and phase failure protection. SMB Protective motor switch 1x230 VAC/ 3x400 VAC System 1:2 Manual speed control of fan that is started and stopped with the potentiometer. The fan’s speed is regulated manually and start/stopped as necessary with the SFC PS potentiometer. SFC PS Potentiometer System 1:3 Manual start and stop of fan and two speeds The fan is manually...

Start and stop fans with contactor. Manual control from work station with time delay System 2:2 Manual start and stop of fan. Start and stop is made manually with a push-button mounted on the extractor. The S 400 control unit has a builtin adjustable time delay of 0 - 15 minutes. Automatic control from work station with time delay. System 2:3 Automatic starting and stopping of fan. Starting and stopping are conducted automatically with the STG 400 pliers sensor, which is clipped onto the earth cable of the welding transformer. The S 400 control unit has a built-in adjustable time delay of...

Individual damper control and start and stopping of fan via contactor Damper and contactor manually controlled from the work station with time delay System 3:2 Manual control of damper and start and stop of fan Opening and closing of the damper is made manually via a push-button mounted on the extractor. A control signal from the control unit starts and stops the fan. The S 400 control unit has a built-in adjustable time delay of 0–15 minutes. Damper and contactor automatically controlled from the work station with time delay System 3:3 Automatic control of damper and start and stop of fan...

Individual damper control and need-adapted control of fan via a pressure sensor and frequency converter Damper and frequency converter manually controlled from the work station with time delay System 4:2 Manual control of damper and needadapted control and start and stop of fan The damper is opened and closed manually with a push-button mounted on the extractor, which also starts and stops the fan. The frequency converter maintains a constant negative pressure in the main duct via the pressure sensor. The S 400 control unit has a built-in adjustable time delay of 0–15 minutes. S 600...

SFC FREQUENCY CONVERTER Designed for process ventilation The SFC frequency converter is designed for variable speed control of e.g. fans. This provides optimal operating economy and the lowest possible noise level. Depending on the number of work stations in operation, the SFC (along with the ST 300 pressure sensor) varies the fan speed and thus evacuates the correct amount of air. Alternatively, manual variable control can be used with the SFC PS potentiometer. The SFC VSS is used if a 2-step control is preferred. Interference filters are included. The enclosure class is IP 20 for built-in...

SFC PS/VSS/SB SFC POT POTENTIOMETER The SFC PS is a potentiometer for a variable regulation of fan speed via frequency converters. Dimensions Resistance SFC VSS ROTARY SWITCH The SFC POT is a rotary switch for 2-step regulation of fan speeds via frequency converters. Dimensions Increments SFC SB SWITCH The SFC SB is a switch for start/stop of fans via frequency converters. Dimensions Enclosure class Power supply ST 300 ST 300 PRESSURE SENSOR The ST 300 maintains constant negative pressure in the discharge duct via a frequency converter that controls fan speeds. The ST 300 always provides...

S 400 S 400 CONTROL UNIT The S 400 is used for automatic control of damper motor SAS 24 at terminals 1–4. Fans are normally controlled via the S 600 transformer units. The after-run time for evacuation of remaining gases is built into the control unit. The time is set between 0–15 min. The S 400 is supplied with 24 VAC from the S 600 transformer unit. Dimensions Enclosure class Primary side Secondary side SMT 60 TIMER SWITCH The SMT mechanical timer switch is a manual timer, adjustable from 0 to 60 minutes. It can replace a KHT push-button unit. The SMT 60 is wall-mounted close to the...

S 600 S 600 TRANSFORMER UNIT The S 600 is used to supply 24 VAC to the S 400 control unit. Control of fan is made via external contactor 230 VAC, via signal from terminals 1 & 2. Frequency converter is controlled via the potential-free outputs, terminals 3 and 4. Dimensions Enclosure class Primary side Secondary side 230 V~ Main connection. 230 V~ Connection SKO. Potential-free VX-switch. 24 V~ Votage. Switch connection.

The S 200/230 is used for automatic control of damper motor SAS 230 and/or a fan. The after-run time for evacuation of remaining gases is built into the pliers sensor (~30 sec.). For longer after-run times, there is an adjustable timer card (0–15 min. and 0–240 min.) available as an accessory. Single-phase fans (max. 0.75 kW) can be directly controlled via an integrated relay. Other fans are controlled with an external contactor via the same integrated relay, terminals 1–5. Frequency converters are controlled via the potential-free output, terminals 6–8. The S 200/24 is used for automatic...