Type EM-AUTOZERO

Expansion module EM-AUTOZERO

EASYLAB controller including EM-AUTOZERO

EM-AUTOZERO

Automatic zero point correction for EASYLAB

Expansion module for EASYLAB controllers that offers automatic zero point correction for long-term stable volume flow rate measurement and reduced maintenance

Particularly recommended for the volume flow or differential pressure measurement in sensitive areas
EASYLAB controller automatically identifies and uses the expansion module
The expansion module is fitted into the casing with the EASYLAB base component
Easy retrofitting
No additional configuration effort

Application

Application

Expansion module Type EM-AUTOZERO for the EASYLAB system
EM-AUTOZERO, automatic zero point correction for long-term stable volume flow rate measurement and reduced maintenance.
Can be used with fume cupboard, supply air, extract air or differential pressure controller EASYLAB TCU3
For use in laboratories, clean rooms in the pharmaceutical and semiconductor industries, operating theatres, intensive care units, and offices with very demanding control requirements

Special characteristics

Long-term stable volume flow rate measurement and reduced maintenance
Automatic zero point correction as soon as the supply voltage is applied
Cyclical zero point correction during operation (every 8 hours)
No additional configuration effort
The EASYLAB controller identifies the expansion module automatically

Description

Parts and characteristics

Solenoid valve
2-pole plug-in connection cable for the connection to the EASYLAB main PCB
Tubes for the connection of the static differential pressure transducer

Construction features

Dimensions and fixing correspond to the EASYLAB casing
The expansion module is inserted into a recess of the holder for the differential pressure transducer (no tools required)
Integration with the tube connection between the static differential pressure transducer and the differential pressure sensor
Plug ensures easy connection to the EASYLAB controller

Teknisk information

Function, Technical data, Specification text, Order code, Related products

EM-AUTOZERO 00133875_0

① Solenoid valve
② Plug
③ Differential pressure sensor – plus connection
④ Differential pressure sensor – minus connection
⑤ Pressure transducer – minus connection
⑥ Pressure transducer – plus connection

The solenoid valve of the EM-AUTOZERO expansion module is integrated with the tube connection between the static differential pressure transducer and the differential pressure sensor of the VAV terminal unit.

The TCU3 controller provides the control input signal for cyclical zero point corrections.

For this purpose, the measuring tubes of the differential pressure transducer are temporarily short circuited, then the zero voltage is measured.

This measured value is used as a correction value for the volume flow rate measurement until the next zero point correction.

Supply voltage	24 V DC from the controller TCU3
Power rating	1.8 W
Maximum pressure	10 bar
Operating temperature	0 – 50 °C
IEC protection class	III (protective extra-low voltage)
Protection level	IP 20
EC conformity	EMC according to 2004/108/EC
Weight	0.100 kg

Expansion module for the EASYLAB controller TCU3, used for automatic zero point correction.

Long-term stable volume flow rate measurement and reduced maintenance.

The expansion module comprises a solenoid valve, the connection cable and connection tubes.

Special characteristics

Long-term stable volume flow rate measurement and reduced maintenance
Automatic zero point correction as soon as the supply voltage is applied
Cyclical zero point correction during operation (every 8 hours)
No additional configuration effort
The EASYLAB controller identifies the expansion module automatically

Technical data

Solenoid valve
Supply voltage 24 V DC from the controller TCU3
Power rating 1.8 W
Maximum pressure 10 bar
Protection level IP 20

Any attachments are to be defined with the order code of the VAV terminal unit.
Retrofit possible

Installation details

Installation and commissioning

As attachment for the EASYLAB base component: factory mounted
For retrofitting: Mount the expansion module into the base casing and connect it

Nedladdningar

produkt information

Print page Type EM-AUTOZERO

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