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INDUCTIVE CONTACTS Inductive contacts are intrinsically safe and certified toEN 50014/50020 norm with protection degree EEX ia IIC T6. To
guarantee such protection degree the contacts must be supplied
via a control relay which has the same type of certificate (see our
catalogue sheet 8.W01-W02). When mounted on instruments with
liquid filled case (models 1.M1.3, 1.M2.3) they are particularly
suitable for application on chemical and petrochemical plants
with vibrations and frequent operation. The inductive system consist of an inductive sensors thatoperates without mechanical contact and an external control
unit.The control head of inductive sensor contains a transistorizedoscillator and two axial coils. The magnetic coupling betweenthe two axial coil is changed by a control flag which is movedby the pointer. This action changes the internal control unit current which is used actual to trigger a switch amplifier which
makes the real switching. For further informations see our data-
sheet 8.W01-W02. REV. A E 11/04 Functional and constructive characteristics www.nuovafima.com Set-point accuracy: 150% of instrument accuracy. Set-point hysteresys: 0,3...1% of full scale value. Contact setting: over an arc of 270 ° , trough the knob placed onfront lens or trough removable key. Electricla wiring: 22011048
24Volt junction box as per VDE, see underdraw table. LOAD RATINGS(of the control unit output relay) DCAC 0,1 A0,2 A
0,6 A4 A4 A4 A
4 A
4 A AT ANY TIME. UPDATED DATA-SHEETS ARE AVAILABLE ON SITE WIRINGSCHEME (1)ELECTRIC SCHEME(before set)CLOCKWISE MOVEMENTOF THE POINTER CAUSES:JUNCTION BOXEX-CONTACTCODE StandardModelFilledModel SINGLE CONTACT MINI 31 3 polesPg. 9Types D,E:3 poles - Pg. 9Types A,C:6 poles - Pg. 13,53 polesPg. 9Types D,E:3 poles - Pg. 9Types A,C:6 poles - Pg. 13,5
Types D,E:6 poles - Pg. 9Types A,C:6 poles - Pg. 13,5Types D,E:6 poles - Pg. 9Types A,C:6 poles - Pg. 13,5Types D,E:6 poles - Pg. 9Types A,C:6 poles - Pg. 13,5Types D,E:6 poles - Pg. 9Types A,C:6 poles - Pg. 13,5 Opening B1 1-3+ MAXI Release of control flag from control head and 32 B2 2-3+ DOUBLE CONTACT (2) (3) Insertion of control flag into control head n. 1,release of control flag from control head n. 2 and 1 ° MINI2 3241 ° MAXI Opening 1 B12 1- 4+ 3+ 2- Closing 2 1 ° MAXI2 3241 Insertion of control flags into control heads ° MAXI Closing 1-2 B22 3+4+1- 2- (1) The above numbers are the same of those stamped on the junction box.(2) Each contact must not exceed the next one.
(3) Other electric contacts are available upon request.
Insertion of control flag into control head and -2- NUOVA FIMA S.p.A. - www.nuovafima.com VIA C. BATTISTI 59 - 28045 INVORIO (NO) ITALYTEL. +39 0322 253200 - FAX +39 0322 253232 -5- IN ORDER TO IMPROVE THEIR PRODUCTION, MESSRS. NUOVA FIMA RESERVE THE RIGHT TO THEMSELVES TO MAKE ALL THE MODIFICATIONS THAT THEY DEEM INDISPENSABLE
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