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测量参数

Dew point
Pressure, absolute
Temperature

-50 ... +30 °C (-58 ... +86 °F)
1 ... 10 bar (14.5 ... 145 psi)
-40 ... +80 °C (-40 ... +176 °F)

参数计算

Pressure, normalized to 20 °C 
(68 °F)

1 ... 12 bar (14.5…174 psi)

SF6 or SF6/N2 mixture density
ppm moisture, by volume
Dewpoint, converted to atmospheric pressure

0...100 kg/m3 
40 ... 40 000 ppm
-65 … +30 °C (-85 ... +86 °F)

性能

Dew point accuracy
Dewpoint stability

Pressure accuracy at 23 °C (73.4 °F)
Pressure temperature dependence

±3 °C (±5.4 °F)
typical drift < 2 °C (3.6 °F) /5 years
±0.4 %FS
±0.1 %FS/10 °C (18 °F)

Pressure stability
Temperature accuracy
    0 ... 40 °C (+32 ... +104 °F)
    -40...80 °C (-40 ... +176 °F)

typical drift < 1 %FS /5 years

±0.5 °C (± 0.9 °F)
±1 °C (± 1.8 °F)

Density accuracy (pure SF6, 1 ... 10 bara)
    0 ... 40 °C (+32 ... +104 °F)

±1 %FS

    -40 ... +60 °C (-40 ... +140 °F)
PPM accuracy, typical (5...1000 ppm, 7 bar)

±2.2 %FS
±( 7 ppm + 15% of reading)

Sensor response time:
    Pressure response time
    Dew point response time*
    63% [90%] at 20°C and 1 bar
   -50 -> -10 °C Tdf
   -10 -> -50 °C Tdf      

< 1 s


5 s [ 10 s]
10 s [ 2.5 min]

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?* system equilibrium related response time is typically longer

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操作环境

?

Operating temperature of electronics
Operating Pressure
Relative humidity
Measured gases

-40 … +60 °C (-40 ... +140 °F)
0 … 50 bar (0…725 psi)
0...100 %
SF6, SF6/N2 mixture

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输出

?

Digital output

Connector

RS-485, non-isolated, Vaisala protocol
4-pin M8

?

其他

?

?

?Sensor 

Operating voltage

?Vaisala MPS1 multiparameter sensor
15 ... 28 VDC

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? ?    20 ... 28 VDC in cold temperatures (-40 ... -20 °C (-40 ... -4 °F))

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?Supply current, during normal measurement
     during self-diagnostics
Housing material
Housing classification

?20 mA
max. 300 mA pulsed
AISI316L
IP65 (NEMA4)

?

? ?     Weather shield to be used for continuous outdoor installations

?

?Storage temperature range
    transmitter only
    shipment package
Mechanical connection

?
-40 … +80 °C (-40 ... +176 °F)
-20 … +80 °C (-4 ... +176 °F)
DILO DN20, ABB Malmkvist, or
Alstom G1/2” compatible connector

?

? ?      Every connection is helium leak tested at the factory

?

?Dimensional drawings

Weight (with DILO adapter)

?See the document B211165EN-A
765 g (27.0 oz)

?

? ?Complies with EMC standard EN61326-1, Electrical equipment for
measurement, control and laboratory use - EMC requirements;

?

?     Industrial environment, Tested levels
     EN/IEC 61000-4-2, Electrostatic Discharge
     EN/IEC 61000-4-3, RF field immunity
     EN/IEC 61000-4-4, Electric Fast Transient
     EN/IEC 61000-4-5, Surge



     EN/IEC 61000-4-6, Conducted RF Immunity

Mechanical vibration
     EN/IEC 60068-2-6, Fc Sinusoidial vibration