VEGA VEGAPULS 61 (≥ 2.0.0 - ≥ 4.0.0) HART - integrated accumulator - Manual (Page 11)

11
3 Product description
VEGAPULS 61 • HART - integrated accumulator
40792-EN-121011
The instrument is available in two different electronics versions. Each
version can be identified via the product code on the type label as
well as on the electronics.
•
Standard electronics type PS60HK.-
•
Electronics with increased sensitivity type PS60HS.-
The scope of delivery encompasses:
•
Radar sensor with integrated accumulator
•
Battery charger
•
Documentation
– this operating instructions manual
– Test certificate measuring accuracy (optional)
– Operating instructions manual "Indicating and adjustment
module" (optional)
– Ex-specific "Safety instructions" (with Ex versions)
– if necessary, further certificates
3.2 Principle of operation
The VEGAPULS 61 is a radar sensor for continuous level measure-
ment of liquids under simple process conditions.
Dependent on the application range, different versions are used:
•
Level measurement of aggressive liquids in small vessels: encap-
sulated antenna system
•
Flow measurement in open flumes or gauge measurement of bod-
ies of water: Plastic horn antenna
•
Products with an ε
r
value ≥ 1.8: Standard electronics
•
Products with an ε
r
value ≥ 1.5, < 1.8; applications with very poor
reflective properties: Electronics with increased sensitivity
The actual values that can be reached depend on the measurement
conditions, the antenna system or the standpipe or bypass.
The antenna of the radar sensor emits short radar pulses with a
duration of approx. 1 ns. These pulses are reflected by the product
and received by the antenna as echoes. The transit time of the radar
pulses from emission to reception is proportional to the distance and
hence to the level. The determined level is converted into an appropri-
ate output signal and outputted as measured value.
The instrument is powered via an integrated accumulator. This allows
operation of the instrument independently of the mains or a control
system. To achieve a longer battery lifetime, the instrument is preset
to HART multidrop. This puts a load of only 4 mA current on the ac-
cumulator.
3.3 Packaging, transport and storage
Your instrument was protected by packaging during transport. Its
capacity to handle normal loads during transport is assured by a test
according to DIN EN 24180.
Versions
Scope of delivery
Application area
Functional principle
Voltage supply
Packaging