7.3. MFC Type 8716, MFM Type 8706

For large flow rates, the MFC 8716 and MFM 8706, with their inline measuring method, are used. As a result of this measuring method, these units feature excellent dynamics and very low sensitivity to dirt.Typical applications include Data: Process engineering Full scale range 25–500 l Packaging and food industries Environmental engineering
N /min(8716) 25–1500 l Surface treatment
N /min (8706),(N Material coating
2 at 273.15 K and 1013,25 mbar)
Figure 18: MFC 8716 Burner control systems Settling time <500 ms Industrial fuel cell technology Accuracy ±1.5% of rate ±0.3% F.S. Characteristics: Repeatability ±0,1% F.S. High level of accuracy Linearity ± 0.25% F.S. Fast response and settling time Span 1:50 Excellent span Max. operating pressure 10 bar depending on the application Optional calibration for two gases Integrated totalizer Type of protection IP 65 Field bus optional Port connection G1/4-3/4,NPT1/4-3/4, screw-in connector Mass Flow Communicator (PC configuration software) Analog signal transmission or digital communication (RS-232, RS-485, field bus) 3 binary inputs and 2 binary outputs (relay outputs) Voltage supply 24 V DC Power consumption max. 32.5 W Galvanic isolation of inputs andoutputs Stainless steel or aluminum body
Figure 19: MFM 8706 9-pin socket 15-pin socket 8-pin socket Internal Field bus (PROFIBUS DP or DeviceNet) External Serial interface (RS-232) Set-point value (analog)* and binary inputs 1-3 Mass flow controller (MFC)Mass flow meter (MFM) Input Digital communicationI/O Output Actual value (analog) Voltage supply Binary output 1and 2 (NC or NO) Sensor signal PWM signal* (valve actuation) LED-Display 1-4 Figure 20: Electrical interfaces Type 8716/8706 (* Not with MFM) 26/27