MRU VARIOluxx Portable Stack Gas Emission Analyser User Guide

: June 6, 2024
: MRU

MRU VARIOluxx Portable Stack Gas Emission Analyser User Guide

1 About the Quick Start Guide

This Quick-Start-Guide is intended to give you an initial overview of the analyser, its basic functions and the basic operation.
The Quick Start Guide does not replace the complete User manual of the analyser or the safety manual supplied with the analyzer.
► Read and observe the separately supplied Safety manual.
► Read the complete User manual before starting the measuring operation.
► Get familiar with the analyser before using it.

2 USB-Stick

The complete User manual can be found on the supplied USB stick.

► Remove the cap of the USB stick.
► Insert the USB stick into your computer.

NOTE

You can download the complete User manual directly using the following QR code.
► Scan the QR Code with a QR Code Scanner.

The complete User manual will be downloaded.

3 Intended use

The main task of the analyser is the gas analysis for
Emission control measurements on large combustion plants and engines.

The analyser is optimized for this purpose and includes all components from the gas sampling probe to data processing.
The analyser also performs other measurement tasks such as pressure and temperature measurement or measurement of flow velocity.

For an actual overview of the available options please visit the MRU homepage or contact our sales representatives.

4 Analyser, Probe and Connectors

4.1. Analyser

The analyser consists of a compact and robust metal
housing with shock-absorbing rubber corners. All electrical and pneumatic connections are located on the both front sides of the instrument. It is operated exclusively via the touch-sensitive touch screen.

4.2. Probes

In combination with the analyser, probes in different versions are offered.
Heated Gas sampling probe.

► Check the probe filter before and after each measurement.

1	Probe handle	2	Probe tube
3	Fast locking coupling	4	Probe cone
5	Cable plug (14-pin)	6	Heated hose line
7	Cable coupler (5-pin)	8	Fast locking coupling
9	Filter lock

WARNING

Danger of burns and fire hazards from Heated hose line Injuries and

burns may result.

► Roll out the heated hose line completely for each measurement.

ATTENTION

When measuring with coiled heated hose line, the hose line is destroyed due to strong heat development.

► Roll out the heated hose line completely for each measurement.

Unheated Gas sampling probe

► Check the probe filter before and after each measurement

1	Filter lock	2	Fast locking coupling
3	Cable coupler (5-pin)	4	Cable plug (14-pin)
5	Fast locking coupling	6	Unheated hose line
7	Probe cone	8	Probe tube
9	Probe handle

4.3. Connectors

Front side right

Analog-inputs 4 … 20 mA

7| Mains power supply| |
Front side left

5 Operation

5.1.Commissioning

► Connect the mains plug.
► Press Power on / off (1)

The analyser switches on.
The operating system boots.
Die blaue LED für Power und die blaue LED für Netzbetrieb leuchten. (Im Fehlerfall leuchtet die Power LED rot)
Blue LEDs for ON and power supply are switched on. (In the event of an error, the Power LED lights red)
The device runs through a start routine of 30 minutes.
The start routine includes:
self-test
warm-up of the NDIR bench
cool down of the double stage gas cooler, indicated by the symbol
Zeroing, indicated by symbol.
The remaining time until the end of zeroing is displayed.
Ready for operation after 30 min

5.2.Operation panel

All functions are controlled via the touch surface of the instrument.
Different gestures are available in the individual menus and windows.

QUICK-START-GUIDE VARIOluxx

1	Power-on and Reset	2	Reserve
3	Reserve	4	LED display mains operation/battery charging mode
5	Reserve	6	Current flow rate
7	Current temperatures heated hose	8	Selected measuring program, e.g. Test

or measurement program
9| Current temperatures of NDIR bench| 10| Current temperatures of gas cooler
11| Access to detailed information on the instrument components.

Especially for service or inquiry

cool-down phase

6 Measurement

ATTENTION

► Operate the analyser in a standing position only.
See also chapter 4.3 Connectors, Page 5. Set up and operate the analyser only as shown in the illustration.
► Never operate the analyser in a lying position.
The analyser may otherwise be damaged.

6.1.Prepare measurement

Operating temperature
If the analyser has been stored in a very cold place (below 5°C), wait about one hour for it to acclimatize in a warm environment before switching it on.

Power supply

The analyser can be operated with an internal battery to warm up the instrument or to use internal instrument functions. A mains connection is required for the measurement including heated gas sampling probe and heating hose.

ATTENTION

When measuring with coiled heated hose line, the hose line is destroyed due to strong heat development.
► Roll out the heated hose line completely for each measurement.

Connections to the analyser

See also Chapter 4 Analyser, Probe and Connectors, page 3.
► Connect the gas sampling probe to Sample gas inlet port (12) (gas coupling and round plug).
► Note that acidic condensate as well as phosphoric acid is discharged from the condensate out port (9). Consider to connect a hose or
collecting container to the condensate outlet when
appropriate. Ensure that the empty volume of the collection
container is sufficient (24ml/h). The hose must not be closed and the collection container must have a ventilation opening.
► Please note that measuring gas may leak at the analyser side or at the Sample gas outlet port (10)
► Ensure that ambient fresh air can be sucked in at the Fresh air inlet port (11). Consider to connect a hose leading fresh air to analyser.