TFM-2/TPM

TFM-2-TPM

For the monitoring of differential pressure, volume flow rate or face velocity

Monitoring system for measuring variables from an external transducer

Areas of application: Monitoring of differential pressure in rooms or ducting, of volume flow rates, and of the face velocity on fume cupboards
Connection of voltage signals 0 – 10 V with characteristics that can be set individually
Monitoring of two independent values; the corresponding types of alarm can be set
Optical and acoustic alarms are emitted on the control panel
Power failure is displayed on the control panel
Monitoring parameters and additional functions can be adjusted using MConnect configuration software
For new installations and for refurbishment

Recording of the measured value to be monitored

Face velocity transducer VS-TRD
Differential pressure transducer with voltage signal
Volume flow rate transducer with voltage signal

Application

Application

Monitoring devices Type TFM-2-TPM for volume flow rates, face velocity or room differential pressure with optical and acoustic alarms and alarm signalling to higher-level systems (central BMS)
Selection of type of monitoring (volume flow rate, face velocity, differential pressure) with a single unit, configurable
Measuring with transducers (to be provided by others) that transform the measured value into an electric signal
For use in laboratories, clean rooms in the pharmaceutical and semiconductor industries, operation theatres, intensive care units
For new installations, retrofit, and refurbishment projects

TFM-2

Monitoring of the volume flow rate of fume cupboards, fume hoods, extraction arms to EN 1475; as an alternative, for the monitoring of volume flow rates in ducting
Monitoring of the face velocity for fume cupboards, fume hoods
Electric actual value signal, for example from a volume flow controller (to be provided by others) or face velocity transducer

TPM

Monitoring of the differential pressure in rooms or ducting
Electric actual value signal, for example from a room pressure transducer (to be provided by others) or balance ring manometers

Special characteristics

Monitoring of volume flow rate, differential pressure or face velocity
Measurement recording with transducer (to be provided by others) as 0 – 10 V signal
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
Signalling of normal operation, measured value higher or lower than setpoint, power failure
Conventional alarm signalling (switch contact) to the central BMS
On-site configuration with free-of-charge configuration software MConnect

Description

Parts and characteristics

Microprocessor system with programme and system data stored in nonvolatile memory
Double-stack terminal blocks for supply voltage connection
3 digital inputs with clamp terminals
4 digital outputs with clamp terminals
1 analog input with clamp terminals
RJ socket for control panel
Fuse
Integral power failure recognition with maintenance-free Goldcap capacitor

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
Button to switch lighting on/off (only TFM-2)
Alarm sounder
Socket to connect a notebook for service and commissioning

Useful additions

VS-TRD: Face velocity transducer for the LABCONTROL system
EasyConnect: Configuration software for the commissioning and diagnosis of EASYLAB components
Differential pressure transducers: Static differential pressure transducers for room pressure control or duct pressure control

Construction features

Casing can be opened and closed without tools
Control panel with plug-in connecting cable

Materials and surfaces

Casing made of galvanised sheet steel, powder-coated, white
Control panel made of plastic, light grey
Control panel with front plastic (background HKS 91 30 %, buttons and text HKS 88 30 %)

Technical information

Functional description

The TFM-2/TPM monitoring device enables monitoring of the aerodynamic function of fume cupboards as well as monitoring spaces where the differential pressure is being controlled.

The measuring variable (volume flow rate, face velocity or pressure) is recorded by an external transducer (to be provided by others). The transducer provides a voltage signal that is proportional to the variable; the signal is then transmitted to the monitoring device and evaluated by the microprocessor system.

The characteristics for the transducer, the monitoring settings and any required special functions can be configured with the free-of-charge TROX MConnect software.

Optical and acoustic alarms are emitted on the supplied control panel. Alarm signalling to the central BMS can be achieved by wiring the alarm relay. Failure of the supply voltage is also signalled to the control panel.

The following parameters and functions can be set:

Type of monitoring: Volume flow rate, face velocity or differential pressure
Characteristic of the transducer
Monitoring of 2 independent values, with individual types of alarms if the actual values deviate from the set limits
Switching (switch contact) between the two values being monitored
Monitoring can be switched off (switch contact), e.g. for night-time operation
Control panel button to switch lighting on/off

Configuration settings are stored in EEPROM memory and are hence safe in case of a power failure.

Monitoring devices for the monitoring of volume flow rate, room pressure, or face velocity on a fume cupboard. The quantity being monitored is received as a 0 – 10 V DC voltage signal from external transducers, e.g. face velocity transducer or volume flow measuring unit.

The monitoring system includes a microprocessor in a casing, a control panel (also for display), a sticker to mark the control panel for either volume flow rate and face velocity monitoring or for room pressure monitoring.

Special characteristics

Monitoring of volume flow rate, differential pressure or face velocity
Measurement recording with transducer (to be provided by others) as 0 – 10 V signal
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
Signalling of normal operation, measured value higher or lower than setpoint, power failure
Conventional alarm signalling (switch contact) to the central BMS
On-site configuration with free-of-charge configuration software MConnect

Materials and surfaces

Casing made of galvanised sheet steel, powder-coated, white
Control panel made of plastic, light grey
Control panel with front plastic (background HKS 91 30 %, buttons and text HKS 88 30 %)

Technical data

Supply voltage: 24 V AC ±15 %, 50/60 Hz
Power rating: 3.5 VA
Switch rating of relays: 250 V AC, 5 A

Downloads

product information

Type TFM-2-TPM

K6 - 2.2 - 2 Technical Leaflet 340 KB pdf

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