Micropilot S FMR533 4 to 20 mA HART
Appendix
Hauser
87
11.4
Particularities in "approved" operation
The Micropilot S level radar is set to custody transfer mode after commissioning using a custody
locking switch (
30) The position of the custody locking switch is secured and sealed using the
sealing pin.
During custody transfer measurement, all custody transfer-relevant functions for operation are
automatically locked, so that the device software can not be used, either via local operation or via
digital communication settings. This locked status is displayed by the key symbol (
).
Micropilot S radar devices continuously monitor the compliance with accuracyrequirements for
custody transfer measurements according to OIML R85. If, for example, the accuracy cannot be
maintained due to quick surface movements, this is reported via a separate alarm in the local display
(displays "#"- symbols) and via digital communication.
11.5
Definition of terms
For definitions and procedures please refer to the following documents:
• Manual of Petroleum Measurement Standards, Chapter 3 - Tank Gauging,
Section 1.B - Standard Practice for Level Measurement of Liquid Hydrocarbons in Stationary
Tanks by Automatic Tank Gauging, American Petroleum Institute, second edition, 2001
• OIML R 85, Organisation Internationale de Métrologie Légale, International Recommendation
R85, edition 1998 (E).
11.6
Integrated in tank gauging system
The Hauser Tank Side Monitor NRF590 provides integrated communications for sites with
multiple tanks, each with one or more sensors on the tank, such as radar, spot or average
temperature, capacitive probe for water detection and/or pressure sensors. Multiple protocols out
of the Tank Side Monitor guarantee connectivity to nearly any of the existing industry standard tank
gauging protocols. Optional connectivity of analog 4 to 20 mA sensors, digital I/O and analog output
simplify full tank sensor integration. Use of the proven concept of the intrinsically safe HART bus
(HART multidrop) for all on-tank sensors yields extremely low wiring costs, while at the same time
providing maximum safety, reliability and data availability.
L00-FMR53xxx-14-00-06-en-006
Micropilot S
Prothermo
Tank Side Monitor
Tank
Scanner
NXA820
NXA820
Data
Concentrator
TCP/IP
NXA820
Host Link
Pressure
HART
4 wire
Supply voltage:
16 to 253 V AC
DCS
Tankvision
workstation
