Burkert Type 8709 - Handbuch (Seite 5)

16
mechanical data 7.5.
Installation
position:
see calibriation plate / calibration report
Material:
Housing:
Type 8709 and 8719: Stainless steel
1.4404
Type 8708 and 8718: Stainless steel
1.4404
Cover: Type 8709 and 8719: PBT
Type 8708 and 8718: PC
Sealing material: see rating plate
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fluidic data 7.6.
Final value (Q
nom
): see rating plate / calibration
report
Measuring range /
control range:
1 : 10
Measuring precision: ± 1.5% o.r. ± 0.5% f.s.
(after 15 min. warming up time)
Reproducibility: ± 0.5% f.s
Correction time (t
95%
): < 500 ms
Max. operating pressure: 2 bar
rel
, 6 bar
rel
, 10 bar
rel
,
according to version depending
on the nominal size of the valve
and the sensor measuring range
(for more detailed information
see calibration report)
Calibration fluid: Operating fluid or water
(see calibration report)
Line connections: G1/4 or NPT1/4
8708, 8718: also available as
flanged connection
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18
electrical data 7.7.
Power supply: 24 V DC ± 10 %;
residual ripple < 2 %
Power
consumption:
8718 and 8719: max. 7.5 W
for field bus version max. 10 W
8708 and 8709: max. 2.5 W
for field bus version max. 5 W
Inputs:
Set-point value: Standard signal 0/4 … 20 mA
max. input impedance: 300
Ω
Resolution: 5 µA
Standard signal 0 – 5/10 V
min. input impedance: 20 k Ω
Resolution: 2.5 mV
Binary inputs: Low-active, for activation connect to
DGND (for binary inputs)
(assignment can be configured)
8709 and 8719: 3 binary inputs
8708 and 8718: 2 binary inputs
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Outputs:
Actual value: Standard signal 0/4 – 20 mA
max. burden: 600 Ω
Resolution: 20 µA
Standard signal 0 – 5/10 V
max. current: 10 mA
Resolution: 10 mV
Binary outputs: potential-free changers 60 V, 1 A, 60 VA
(assignment can be configured)
8709 and 8719: 2 binary outputs
8708 and 8718: 1 binary outputs
Electrical
connections::
8719 and 8709:
8-pole round socket
15-pole Sub-HD socket
optional: 5-pole M12 socket or plug for
field bus
8718 and 8708:
15-pole Sub-D plug
optional: 5-pole M12 socket or plug for
field bus
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Type 8708, 8709, 8718, 8719