Burkert 8626 - Type 8716; 8706 MASS FLOW INLINE

MFC/MFM - 23
english
Type 8716 / 8706 MASS FLOW INLINE
Full scale range (Q
nom
)
8706
8716
25 to 1500 l
N
/min (N
2
equivalent)
25 to 500 l
N
/min (N
2
equivalent)
Operating media neutral, non-contaminated gases, others on request
max. operating pressure 10 bar, depending on nom. valve diameter
Calibration medium operating gas or air with conversion factor
Medium temperature -10 to + 70 °C
Ambient temperature -10 to + 45 °C
Measurement accuracy
(after 15 min. warm-up)
± 1.5 % of Rdg. ± 0.3 % F.S.
Linearity ± 0.25 % F.S.
Reproducibility ± 0.1 % F.S.
Control range / Span 1 : 50
Settling time (T
95%
) < 500 ms
Operating voltage 24 V DC ± 10 %; residual ripple < 5 %
Connection cross-section min. 0.5 mm²
Power consumption
20 W - max. 30 W (Type 8716 dep. on valve)
22.5 W - max. 32.5 W (Type 8716 bus,dep. on valve)
10 W (Type 8706)
12.5 W (Type 8706 bus)
Electrical isolation yes
Setpoint setting
(to be chosen)
0 - 10 V, 0 - 5 V, 0 - 20 mA,
4 - 20 mA
Resolution 2.5 mV or 5 µA
Input impedance
(volt. inp.)
> 20 kOhm
Input impedance
(curr. inp.)
< 300 Ohm
3 binary inputs low-activated, connect to GND to activate
Process value output
(to be chosen)
0 - 10 V
0 - 5 V
0 - 20 mA
4 - 20 mA
Resolution 10 mV or 20 µA
max.current (volt. outp.) 10 mA
max. burden (curr. outp.) 600 Ohm
2 relay outputs potential-free changeover 60 V, 1 A, 60 VA
Connections 8-pole socket
15-pole SUB-HD socket
9-pole SUB-D socket (bus version only)
Type of protection IP 65 (with the specified plug connectors)
Housing material aluminium (anodized) or stainless steel 1.4305
Cover material PBT
Installation position horizontal or vertical