Alecto E1842C Operation Manual Download Page 8

 

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unfix latch from case  

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fix a latch on the panel using two screws (4mm diameter) according to figure C.2; 

Use two screws with a diameter 4 mm to fasten a latch on the panel. Screws should not overhang 

mounting plane of the latch. 

When mounting the transducer on latch, it is necessary to provide free space of at least 15 mm for 

first mounting of transducer. 

2.3.4

 

Put a main lead of measured circuit trough the hole of the transducer. 

2.3.5

 

Fix wires to output terminals with respect to polarity. 

2.3.6

 

Make sure that transducer input signal range is suitable for measuring current of the circuit. 

2.3.7

 

Turn on an input signal on the transducer. 

 

 

2.4 Operation in case of emergency 

 

2.4.1 In case of emergency, input signal should be immediately turned OFF. 

Summary of Contents for E1842C

Page 1: ...1 CURRENT TRANSDUCER E1842C Operation manual 49501860 3 0015 РЭ ...

Page 2: ...ded use 7 2 1 Operational constraints 7 2 2 Preparation for use 7 2 3 Use 7 2 4 Operation in extreme conditions 8 3 Maintenance and repair 9 3 1 Safety 9 3 2 Order of maintenance 9 3 3 Troubleshooting data 9 3 4 Metrology monitoring 10 4 Storage 11 5 Transportation 11 Annex A Transducer Schematic 12 Annex B General Form of the Transducer 14 Annex С Variants of Transducer mounting 15 ...

Page 3: ...9501860 02 Transducer is mounted on the rail TH 35 in accordance with ГОСТ Р МЭК 60715 2003 or immediately on the panel Transducer is hardware SSI product of the third order according to ГОСТ 12997 84 Protection of the transducer against environmental activity is ordinary Guard level IP00 ГОСТ 14254 96 IEC 529 89 Operating Environment Climatic affecting for C4 Group ГОСТ 12997 84 Ambient Air Tempe...

Page 4: ...35 С 0 9 Input signal frequency 45 to 65 Hz 0 5 Strength of external magnetic field with frequency 45 65 Hz A m 400 А m 0 5 Load resistance 0 to 200 above 300 to 500 incl 0 25 1 2 5 Limits of error due to 5 harmonic distortion for 2 th 4 th 6 th 8 th harmonic 1 of the fiducial value for 3 th 5 th 7 th 9 th harmonic 2 of the fiducial value 1 2 6 Set up time of performance heating up time is 10 min ...

Page 5: ... C 1 2 14 Electrical insulation resistance between case and output circuit is at least 100 M in standard conditions 20 M to 80 R H at 50 C 2 M to 95 R H at 35 C 1 2 15 Overall dimensions 70x80x77 mm 1 2 16 Weight 0 3 kg 1 2 17 Average mean time to failure 75000 hours 1 2 18 Average operation time 10 5 years 1 3 Construction 1 3 1 General form of Transducer is presented in Annex B 1 3 2 Transducer ...

Page 6: ...ollowing information is marked on a cover of the transducer Name and type designation Manufacturer s mark Unit symbols of input and output signals Load resistance range Overvoltage category Module of intrinsic error Designation of numbers and polarity of output terminals Serial number two last digits describe year of manufacture 1 5 2 Sealing of the transducer is done with a bitumen mastic 1 accor...

Page 7: ...ndividual package 1 Latch 1 On a Should be installed on case of transducer 2 2 2 Check the information on a cover of the transducer for correspondence with required parameters 2 3 Use 2 3 1 To provide safety all operations on mounting and maintenance should be done with respect to rules of safe usage of electric systems in which transducers should be installed 2 3 2 Layout work at place of install...

Page 8: ...cessary to provide free space of at least 15 mm for first mounting of transducer 2 3 4 Put a main lead of measured circuit trough the hole of the transducer 2 3 5 Fix wires to output terminals with respect to polarity 2 3 6 Make sure that transducer input signal range is suitable for measuring current of the circuit 2 3 7 Turn on an input signal on the transducer 2 4 Operation in case of emergency...

Page 9: ...age after inspection is done turn ON input signal 3 2 2 To unfix transducer from rail insert screwdriver in groove located at lower part of transducer case 3 3 Troubleshooting 3 3 1 Faults probable reasons and solutions are given in table 4 Table 4 Fault Probable reason solution There is no voltage at transformer winding Brake or short circuit of transformer winding Replace transformer No output s...

Page 10: ...e transformer T1 25 V Capacitor С1 24 V Capacitor С2 22 V Capacitor С3 10 V 3 4 Metrology monitoring 3 4 1 To be sure that metrological characteristics are acceptable and are in accordance with metrological characteristics presented in this manual transducer should be calibrated every 2 years Calibration procedure should be done in accordance with document 49501860 3 0009 МП Преобразователь измери...

Page 11: ...ressive gases and other harmful ad mixtures leading to corrosion should not exceed maximum tolerable value of content of corrosion active substances for atmosphere of type 1 according to ГОСТ 15150 69 5 Transportation 5 1 When packed in transportation package transducers can be transported on vehicle of any type In case of transportation on plane transducers should be placed in hermetic heated cha...

Page 12: ...or RC 1206 130 Ом 5 YAGEO 1 Resistor R2 R3 Resistor RC 1206 1 2 кОм 5 YAGEO 2 Resistor T1 Transformer see table 1 Transformer according to table V1 Bridge rectifier MB4S FAIRCHILD 1 Bridge Rectifier V2 Zener diode 1 5SMC47A ON SEMICONDUCTOR 1 Zener diode V3 Zener diode SMAZ12 13 DIODES 1 Zener diode Designation Т1 Input AC range A 49501860 3 0015 49501860 5 0043 0 25 01 49501860 5 0043 01 0 50 02 ...

Page 13: ...13 Annex B informative General Form of the Transducer Figure B 1 ...

Page 14: ...14 Annex C informative Variants of Transducer Mounting Figure C 1 Mounting on the rail Figure C 2 Mounting on the panel ...

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