Type TFM-1

For the monitoring of volume flows

Monitoring system with integral static differential pressure transducer and measuring probe for fume cupboards, fume hoods and similar components of the supply air or extract air system

Two values can be monitored, switching between the two is possible; alarms can be configured; monitoring can be switched off
Optical and acoustic alarms are emitted on the control panel
Control panel with lighting button that also displays power failures
Monitoring parameters and additional functions can be adjusted using MConnect configuration software
For new installations and for refurbishment

Alternative recording of the volume flow being monitored

Using volume flow rate measuring unit Type VMR, VME or VMLK

Application

Monitoring system TFM-1 for volume flow monitoring on fume cupboards, fume hoods and similar components
Simple solution for fume cupboards with a constant extract air flow
Optical and acoustic alarms as well as alarm signalling to higher-level systems (central BMS)
Measured value recording by means of a measuring probe and an integral static differential pressure transducer
For use in laboratories, clean rooms in the pharmaceutical and semiconductor industries, operation theatres, intensive care units, and offices
For new installations, retrofit, and refurbishment projects

The correct aerodynamic function of a fume cupboard must be monitored and displayed (EN 14175-2, for refurbishment projects DIN 12924 may apply). Any fault must be indicated by an optical alarm and an alarm sound. The monitoring system TFM-1 meets these requirements.

Special characteristics

Two values can be monitored, switching between the two is possible; alarms can be configured; monitoring can be switched off
Signalling of normal operation, volume flow rate higher or lower than setpoint, power failure
Control of the fume cupboard lighting from the control panel
Service access from the control panel
On-site configuration with free-of-charge configuration software MConnect

Variants

TFM-1: Monitoring system
TFM-1 230 V: Monitoring system with mains supply connection 230 V AC

Parts and characteristics

Microprocessor system with programme and system data stored in nonvolatile memory
Static differential pressure transducer, suitable for aggressive media
Plastic measuring probe, easy to install in the duct
Digital inputs for special functions, can be configured as make/break contacts
Digital outputs for alarm signalling and special functions
Power failure indication

Control panel

Display: Volume flow rate or differential pressure alarm, red; power failure, flashing red
Display: Normal operation, green
Display: Volume flow rate exceeds setpoint or differential pressure deviates from setpoint, yellow
Alarm acknowledgement
Alarm sounder
Socket to connect a notebook for service and commissioning

Useful additions