$GGLWLRQ WR WKH ,QVWDOODWLRQ DQG 2SHUDWLQJ ,QVWUXFWLRQV Magnetic inductive flowmeters ALTOFLUX IFM 5080 K / i-EEx with IFC 090 i -EEx signal converter 7.30827.
1 Contents In this addition only the points which differ from the standard Installation and Operating Instructions are described. This addition is only valid for compact flowmeters with the IFC090 i-EEx signal converter with intrinsically safe signal in- and outputs. 1 CONTENTS........................................................................................................................ 2 2 DESCRIPTION OF THE SYSTEM ..............................................................................
2 Description of the system The explosion protected compact-flowmeters differ from the standard flowmeters mainly in their "internal assembly". Several types of protection are used in the compact flowmeter IFM 5080 K / i-EEx, depending on the ordered type of the connection compartment of the signal converter housing.
Connection of signal-in/outputs (intrinsically safe) Connection power supply (non-intrinsically safe) With each in/output module a certain in/output function can be realised, see following overview: In/Output module P-SA Function Electrical data passive current output Current: 4..20 mA Working voltage: 8.. 30 V DC Voltage drop: 8 V at 4 mA Working voltage: 6..
The functionality of the terminals for signal in/outputs is depending on the version of the IFC090 i-EEx electronic-unit installed. Each version is equipped with a different pair of in/output modules. Following versions are possible: IFC090 i-EEx version Ex-i1 Ex-i2 Ex-i3 Ex-i4 Ex-i5 Ex-i6 Order no. 2.11582.01 2.11582.03 2.11582.02 2.11582.04 2.11582.05 2.11582.
5 Connection diagrams of the signal in/outputs For the connection diagrams of the signal in/outputs see the next pages. It has to be noted that the intrinsically safe signal in/outputs may only be connected to following electrical apparatus (registering devices like amp-meters, pulse counters etc.
6 Operation of the signal converter The IFM 5080 K / i-EEx compact flowmeters are always equipped with magnet sensors. In that way is possible to change the settings of the converter with aid of the magnet-bar without the necessity to open the flameproof converter housing in the hazardous area? For the program functions and settings of the converter the standard Installation and operating instructions have to be consulted.
7 Service Important! Following instructions must be followed when the converter housing has to be opened (e.g. in case of replacing the power supply fuse or programming of the converter through the internal IMOCOMinterface). To open the housing the special wrench supplied with every flowmeter has to be used. - Make sure there is no explosion hazard - Gas-free certificate! - Make sure all connection cables are safely isolated from any supply.
7.2 Replacement of the electronic unit For part numbers of the electronic units, see sect. 8 of this addition. The electronic units have been tested by Krohne conform the electrical safety codes involved. Before commencing work, note the instructions in the grey shaded box "Important" at the begin of section 7. 1. Remove the cover of the connection compartment by using the special wrench. 2. Remove screws R (see drawing in section 8.
9 Technical data See also the standard Installation and operating instructions. Rated pressure See typeplate Ambient temperature: -20..40/50/60°C, see Certificate of Conformity (1. Amendment) or following table. Medium temperature: See Certificate of Conformity (1. Amendment) or following table. Max. ambient temperature [°C] 40 50 60 Temperature class T6 T5 T4 T3 T6 T5 T4 T3 T6 T5 T4 T3 Max.
