Page 410 - Bürkert

Technical Data (continued) Dimensions [mm] (see datasheet for more details)
Residual ripple < 2%
Power consumption 2.5 W
Output signal 0-5 V, 0-10 V, 0-20 mA or 4-20 mA 2x4M 6
Max. current (voltage) 10 mA
Max. load (current) 600 Ω 20 28
Digital communication RS232, Modbus RTU (via RS adapter)
via adapter possible: RS485, RS422 or USB 8701
0 10 97 107
Fieldbus option PROFIBUS DP, DeviceNet, CANopen Bus address setting
only with fieldbus
Type of protection IP40
approx. 4,5
Total weight ca. 500 g (aluminum) 115,5
Installation horizontal or vertical
Light emitting diodes Indication for power,
(default functions, other Limit (with analog signals) / Communication 84
functions programmable) (with Fieldbus) and error
Binary inputs Two
(default functions, other 1. not assigned 43,5 only
functions programmable) 2. not assigned with fieldbus
30
Binary output A relay output for:
(default functions, other 1. Limit (actual value close to Q nom ) 12,5
functions programmable) Max. Load: 25V, 1A, 25VA 0
only with fieldbus G1/4 o.
CA, DN = 18 NPT1/4
1) The nominal flow value is the max. flow value calibrated which can be measured. The DP = 16,5 Plastic housing analogue 12
nominal flow range defines the range of nominal flow rates (full scale values) possible. without fieldbus
2) Index N: Flow rates referred to 1.013 bar and 0° C.
Alternatively there is an Index S available which refers to 1.013 bar and 20º C
Pressure Loss Diagram (ref. to air, with 250µm inlet filter)

∆p [mbar]
120
The diagram shows exemplarily the
110 G1/4
100 Sub-base pressure loss characteristics when
90 air flowing through.
80 For determining the pressure loss
70 with another gas it needs to calcu-
60 late the air equivalent and respect
50 the fluidics needed with the other
40
gas.
30
20
10
0
0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80
Q [l N/min]

Nominal Flow Range of Typical Gases (Other gases on request)
Gas Min. Q Nenn Max. Q Nenn
[l /min] [l /min]
N
N
Argon 0.01 80
Helium 0.01 500
Carbon dioxide 0.02 40
Air 0.01 80
Methane 0.01 80
Oxygen 0.01 80
Nitrogen 0.01 80
Hydrogen 0.01 500

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