12
3.4
ISO Calibration Points
The
MA-Di measuringSYSTEM
has been calibrated to your nominal width
before delivery. At least six measuring points with defined nominal width,
standard temperature and pressure are parameterized, started up on the
test stand and checked regarding the standard volume. The calibration
certificate according to ISO/IEC 17025 is included in the scope of supplies.
Optionally, a test badge is attached to the device.
4
TECHNICAL DATA
4.1
Thermal mass flow sensor
The thermal mass flow sensor for the compressed air volume flow measu-
rement depends on the process pressure and the fluid temperature.
Sensor
Thermal, glass-passivated ceramic sensor
Fluids
Compressed air, with special calibration also
CO
2
, N
2
Accuracy
for compressed air quality classes (ISO 8573:
particle-moisture-oil) 1-4-1: ±3 % of measured
value, ±0.3 % of end value for compressed air
quality classes (ISO 8573) 3-4-4: ±6 % of
measured value ±0.6 % of end value
Temperature control
± 2 °C
Reproducibility
±1.5 % of measured value
Display, operation
4-digit alphanumeric display, two operating
buttons, operating menu, 5 x LED green (phys.
units), 1 x LED green (10³), 2 x LED yellow
(switching conditions)
Display units *
Nl/min, Nm³/h, Nm/s, Nm³, °C
Measurement dynamics 1:300
Response time
< 0.1s
Pressure-resistant
Up to 16 bar overpressure
Medium temperature
0 ... + 60 °C (max. 90 % rel. humidity)
Ambient temperature
0 … + 60 °C
Storage temperature
-25 …+ 60 °C
Fluid contact
V2A (1.4301), ceramic glass-passivated, PEEK,
polyester, Viton, anodized aluminium
Housing materials
PBT-GF 20, PC (APEC), Makrolon, V2A (1.4301),
Viton
Degree of protection /
IP65 / III
protection class
4 Technical data