Varec 7532, Installation And Operation Manual

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89
7532 Technical data
Inventory Control Ver-
sions
All device types can be delivered as "Inventory Control Versions" with a
reduced accuracy of ± 3mm (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« in the order code section »Custody transfer
approvals« on page 8.
Operating conditions
Operating conditions
Engineering tips
See page 14
Environment
Ambient temperature
range
Ambient temperature for the transmitter:
• Standard: -40 °C … +80 °C (-40 °F … +176 °F)
• For calibration to regulatory standards: -25 °C ... +60 °C (-30
°F…+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 instrument is exposed to direct sunlight.
Storage temperature
-40 °C ... +80 °C (-40 °F … +176°F)
Climate class
DIN EN 60068-2-38 (test Z/AD)
Degree of protection
• housing: IP 65, NEMA 4X (open housing: IP20, NEMA 1)
• antenna: IP 68 (NEMA 6P)
Vibration resistance
DIN EN 60068-2-64 / IEC 68-2-64: 20…2000 Hz, 5 (m/s²)²/Hz
Cleaning of the antenna
See
»
Technical Information
«
TEC028
Electromagnetic com-
patibility
• emissions according to EN 61326; equipment class B
• compatibility according to EN 61326; appendix A (industrial area,
10 V/m) and Namur recommendation EMC (NE 21).
Process conditions
Process temperature
range
See
»
Technical Information
«
TEC028
Process temperature
limits
See
»
Technical Information
«
TEC028
Process pressure limits
See
»
Technical Information
«
TEC028
Dielectric constant
• in a stilling well:
ε
r ≥ 1.4
• in free space:
ε
r ≥ 1.9
Wetted parts
• Planar, gas-tight
Wetted parts: 1.4435 / HNBR (Hydrated Nitrit Butadien Rubber,
resistent to NH
3
) or FKM / PTFE glas fiber laminat
Note!
The planar antenna is not resistant to hot vapor!
• Horn adapter for increase of diameter
Wetted parts: 1.4435