Hydac HLB 1400 Instrukcja Użytkownika Pobierz pdf (Strona 8)

Instruction Manual HYDACLab



03.03.2008

8. Technical Data

Operating Conditions

Relative humidity 0 .. 100 % of saturated concentration

Temperature –25°C .. + 100°C

Viscosity 1 cSt .. 1,000 cSt

Dielectric constant (ε

) 1.5 .. 10

Operating pressure < 50 bar

Pressure resistance 600 bar

Fluid flow velocity < 5 m/s

Output data – Humidity measurement

Output signal 4 mA to 20 mA (corresponds to 0 .. 100 %)

Calibration accuracy

 ± 2 % of FS max.

Accuracy for measurements in media

 ± 3 % of FS (typical) *

Output data – Temperature measurement

Output signal 4 .. 20 mA ( corresponds to – 25 .. + 100°C)

Accuracy

 ± 3 % of FS max.

Output data – Relative change in viscosity and dielectric constant (ε

)

Output signal 12 mA ± 8 mA (corresponds to ± 30 % of

IV)

Accuracy See below **

Switching Output

Signal 1 (NC) PNP-transistor switching output, 0.5 A max.

current draw; switching level:  (U

– 4 V)

Preset warning level SP1, relative humidity

 85 %

Preset warning level SP1, temperature

 80 °C

Preset warning level SP1, viscosity ± 10 % (temperature compensated)

Preset warning level SP1, dielectric constant ± 15 % (temperature compensated)

Ambient Conditions

Nominal temperature range +20 .. +80 °C

Storage temperature -40 .. +90 °C

Fluid compatibility HLP mineral oils (HLP-D on request)

Esters: HEES, HETG

Seals: FPM.

-mark

EN 61000-6-1, EN 61000-6-2,

EN 61000-6-3, and EN 61000-6-4

Protection class to DIN 40050 IP 67

Other Data

Supply voltage (U

) 10 VDC to 36 VDC

Supply voltage ripple

 5 %

Mechanical fitting G ¾ screw thread to DIN 3852 E

Torque value 30 Nm

Electrical connection

5-pin, M12x1 male

Reverse polarity and short circuit protection Provided

Housing material Stainless steel

Weight Approx. 205 g

“FS” (full scale) refers to the full dynamic range; “IV” refers to “initial value.”

* The best accuracy achievable when measuring relative humidity is strongly dependent upon the type of fluid or fluid

additive(s) involved. More precise information on this is available on request.

** The measurement accuracy of relative changes in viscosity and in dielectric constant vary according to the

application, the types of fluids involved, and the sensor’s own calibration. More detailed information on this is

available on request.

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