User Manual
VARIO
luxx
SYNGAS
42 / 50
MRU GmbH, D-74172 Neckarsulm
Efficiency
0 - 120 %
Measurements displayed as
mg/Nm3
O2 Ref
mg/kWh
NOX: mg/Nm3 NO2
Velocity
based on differential pressure measure-
ment with Pitot tube
v
Typical measuring range
3 m/s - 100 m/s
Accuracy at 3 m/s
1 m/s
Accuracy > 12 m/s (reading)
± 1%
Resolution
0,1 m/s
Absolute pressure measurement
•
11.6.
Data communication
USB interface master only (for connection to USB stick or accessories) Ο
Support of external SD card reader
Ο
Ethernet, RJ45
Ο
WiFi
Ο
Bluetooth
Ο
RS485 (AUX socket, for connection of external sensor modules)
Ο
RS485 (isolated, for connection to PC)
Ο
Analog I/O: 4x input, 8x output, 4... 20 mA
Ο
12
Appendix
12.1.
Error diagnosis regarding the measuring instrument
Fault indication
Possible causes
Repair
Gas cooler is faulty!
The system will shut
down…
Gas cooler faulty
Contact MRU service de-
partment
Undervoltage!!!
The System will shut
down…
Battery is discharged Connect instrument to
power grid.
Power consumption
too high
Please check heated
hose!
Please check heated
sample line.
Heated sample line may
be damaged. Disconnect
the instrument from
power grid and visually in-
spect the sample line.
Take care to unroll the
heated sample line before
operating it.
Hose temperature is
set to 160°C
Sample line tempera-
ture set to 160 °C.
Heated sample line is
only intended to op-
During next power-up the
temperature is reduced to
160 °C again.
