Krohne CORIMASS G-MFM 4085 EEx EN User Manual

03/99 CORIMASS G-Class Enclosure to Operating Manual for Ex Instruments MFM 4085 K/F

10 Ensure that the screw thread of the round cover on the terminal box is well greased at all times. – NOTE: The grease used must be non corrosive to

11 2.3.1 Technical information of the Intrinsically safe outputs Variant G,H K,L type of protection intrinsically safe EEx ia IIC bzw.EEx ib IIC

12 3. Certification

61 4. Data Plates 4.1 Ex PTB 4.2 Ex PTB with Custody Transfer

62 4.3 Ex PTB with intrinsically safe outputs

63 4.4 FM Class 1 Div 1 4.5 FM Class 1 Div 2

2 IMPORTANT! These instructions should be used in conjunction with the Standard Installation and Operating Instructions for the MFM 4085 K/F. If you

3 Contents 1. Description 4 1.1 Description of the Transducer 5 1.2 Description of the Converter 5 1.3 Installation of the MFM 4085 K EEx 6

4 1. Description The mass flowmeter MFM 4085 K EEx and MFM 4085 F EEx consists of two main components: The Signal Converter, which calculates and d

5 1.1 Description of the Transducer The transducer MFS 4000-Ex is an intrinsically safe unit and contains three separated safe circuits. These are

6 After opening the converter housing as described above, one of the following operations may be performed by the local KROHNE service engineer :- •

7 2. Electrical installation 2.1 Location and connecting cables Location Do not expose the compact flow meter to direct sunlight. Install a sunsh

8 The tables below show the possible input output connection for the converter. The exact configuration depends on which optional output modules were

9 Fig. b Connection without external voltage source (Example). For correct wiring see tables of input/ output connections Additional input/output o