Micropilot S FMR533 4 to 20 mA HART
Technical data
Hauser
81
Software reliability
The software used in the radar device Micropilot S fulfills the requirements of OIML R85.
This particularly includes:
• cyclical test of data consistency
• non-volatile memory
• segmented data storage
The radar device Micropilot S continuously monitor the compliance with accuracy requirements for
custody transfer measurements according to OIML R85. If the accuracy cannot be maintained, a
specific alarm is generated on the local display and via the digital communication (see Page 31).
Inventory control versions
All device types can be delivered as "Inventory Conctrol Versions" with a reduced accuracy of
± 3 mm (under reference conditions). To these versions, the calibration certificate or custody
transfer type approval is NOT attached. The "Inventory Control Versions" can be selected by
choosing the option "R" in feature "70 - Custody transfer approvals",
10.1.6
Operating conditions: Environment
Ambient temperature range
Ambient temperature for the transmitter:
• Standard: -40 °C to +80 °C (-40 °F to +176 °F)
• For calibration to regulatory standards: -25 °C to +55 °C (-30 °F to +140 °F)
With T
u
< -20 °C and T
u
> +60 °C the operability of the LC-display is reduced. A weather
protection cover should be used for outdoor operation if the device is exposed to direct sunlight.
Storage temperature
-40 °C to +80 °C (-40 °F to +176 °F)
Climate class
DIN EN 60068-2-38 (test Z/AD)
Degree of protection
• Housing: IP68, NEMA 6P (open housing and removed liquid crystal display: IP20, NEMA 1)
• Antenna: IP68 (NEMA 6P)
Vibration resistance
DIN EN 60068-2-64 / IEC 68-2-64: 20 to 2000 Hz, 1 (m/s
2
)
2
/Hz
Cleaning of the antenna
The antenna can get contaminated, depending on the application. The emission and reception of
microwaves can thus eventually be hindered. The degree of contamination leading to an error
depends on the medium and the reflectivity, mainly determined by the dielectric constant
ε
r.
If the medium tends to cause contamination and deposits, cleaning on a regular basis is
recommended. Care has to be taken not to damage the antenna in the process of a mechanical or
hose-down cleaning. The material compatibility has to be considered if cleaning agents are used!
The maximum permitted temperature at the flange should not be exceeded
Electromagnetic compatibility
(EMC)
• Electromagnetic compatibility in accordance with all the relevant requirements of the EN 61326
series and NAMUR recommendation EMC (NE21). For details refer to the Declaration of
Conformity. Maximum deviation < 0.5 % of the span.
• A standard installation cable is sufficient if only the analogue signal is used. Use a screened cable
when working with a superimposed communications signal (HART).
