AccuFlo
®
Zero
– Installation and Operating Instructions
16
Installation and operating instructions AccuFlo
®
Zero
9 Technical data
9.1
General information
Automatic zero-point calibration
Cycle length between calibrations
Configurable at order (factory setting: 24 h)
Temperature trigger
Configurable at order (factory setting: 10 K
temperature difference between last calibration)
Length
30 s
Maintaining of analog output signal
Last available measurement output value is held
constant by transmitter during zero-point calibration
Commissioning mode
Correction of permanent zero-point errors due to
installation errors
Supported flow meters
All differential pressure based flow meters (ISO 5167
and AGA-3-primary elements, pitot tubes, v-cones,
etc.)
Process and signal connection
Material of wetted parts
Stainless steel (1.4571)
Process connection manifold
IEC 61518 / DIN EN 61518 Groove Ø18.5 mm
Process connection transmitter
IEC 61518 / DIN EN 61518 Type A with spigot
Pressure rating
PN 100
Ambient conditions
Ambient temperature of wetted parts
–20 … 50 °C
Climate conditions
Humidity 0
–100 %, external moisture condensation of
installed device permitted.
Protection class
IP 65 ( IEC 60529)
Electromagnetic protection
According to EN55011:2009+A1:2010, Group 1,
Class B und EN61326-1:2013
Design
Weight
2.8 kg
Dimensions
120x40x140 mm³
Life expectancy
At least 10.000 calibrations
Retrofittability
For all differential pressure based flow meters
Certificates and standards
Pressure Equipment Directive
DGRL 2014/68/EU
For gases fluid group 1, liquids fluid group 1;
fulfills requirements according to Art. 4 (3) (good
engineering practice)
