Summary of Contents for ALEKTO E855A
- Page 1 MEASURING TRANSDUCERS Е855А, Е855В, Е855С Е854А, Е854В, Е854С Operation manual 49501860.3.0005 РЭ...
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Page 2: Table Of Contents
49501860.3.0005 РЭ Contents 1 Description and operation..............3 1.1 General Information ..............3 1.2 Characteristics ................4 1.3 Construction ................6 1.4 Functional description ..............6 1.5 Marking and sealing ..............8 1.6 Packing ..................8 2 Uses to assignment .......... -
Page 3: Description And Operation
49501860.3.0005 РЭ This operation manual contains information for using and operating Measuring Transducers Е855А, Е855В, Е855С, Е854А, Е854В, Е854С (further - transducers) and information on packing, transportation and storage. Read this manual before operation. 1 Description and operation 1.1 General Information Transducers are intended for a linear alternating-current converting (Е854А, Е854В, Е854С) and linear voltage converting (Е855А, Е855В, Е855С) to unified output signals of a direct current and can be applied to monitoring currents and voltages of electrical systems, in the equipment of technical di-... -
Page 4: Characteristics
49501860.3.0005 РЭ 1.2 Characteristics 1.2.1 Transducers convert input signal to direct current output signal according to table 1. Conversion function is linear. Table 1 Measurement range Output Load resistance range, Ω Type DC range, AC current, А AC voltage, V 0 –... - Page 5 49501860.3.0005 РЭ Table 2 Name of influencing magnitude Value of influencing Variation, % magnitude of the fiducial value - 30 to 50 °C ±0,4 on 10 °С of tempera- Ambient Air Temperature ture variation ±0,9 Relative Humidity to 95% at 35 °С ±0,5 Frequency 45 to 65 Hz...
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Page 6: Construction
49501860.3.0005 РЭ 1.3 Construction 1.3.1 General Form of the transducer can be seen in Annex A. 1.3.2 Transducer has the following parts: - Case; - Cover; - Component board; - Supply transformer; - Measuring transformer; - Latch. 1.3.3 The contacts, established on a cover, ensure strengthening a component board and reliable contact of conductors of a plated circuit to the leads. - Page 7 49501860.3.0005 РЭ VT1.1 RMS- converter ОA2 VT1.4 ОA1 VT1.2 VT1.3 R11* ОA3 +9 V -15V Figure 1. Bloc k Diagram...
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Page 8: Marking And Sealing
49501860.3.0005 РЭ eedback flux Ф2 is formed by a current I2, which flows on secondary winding, being simulta- neously an output one. Unbalance signal is the voltage on a secondary winding. The СМТ output signal m oves on the circuit of selecting a module CSM and further on an input of the RMS-converter. DU consists of two log amplifiers (ОA1, ОA2) and exponentiating converter on the transistor VT1-4. -
Page 9: Uses To Assignment
49501860.3.0005 РЭ 2 Uses to assignment 2.1 Operational constraints 2.1.1 The transducers are not intended for operation in requirements explosion-hazard and hos tile environment. 2.1 2 The transducers must not be effected by direct heat up to temperature more 50°С. The transducers should be placed on the premises without sharp temperature fluctuation and off the sources of strong electromagnetic field. -
Page 10: Operation In Extreme Conditions
49501860.3.0005 РЭ When the rail is mounted on the vertical plane, its distortion from a horizontal position should not be more than 15°. .3.3.2 When mounting the transducer on the panel: fix a latch on the panel with the help of two screws according to figure B.2; pull the transducer over a latch against the stop. -
Page 11: Maintenance And Repair
49501860.3.0005 РЭ 3 Maintenance and repair 3.1 Safety 3.1.1 The qualified personnel should execute operations of maintenance. 3.1.2 The transducers correspond to ГОСТ Р 52319-2005 (IEC 61010-1:2001). Insulation class is primary. Pollution degree is 2. Overvoltage category III. 3.1.3 IT IS FORBIDDEN: TO C HANGE EXTERNAL CONNECTIONS, WHEN INPUT SIGNAL AND SUPPLY VOLTAGE ARE AVAILABLE IN THE TRANSDUCER. -
Page 12: Troubleshooting Data
49501860.3.0005 РЭ 3.4 Troubleshooting data 3.4.1 You can see the enumeration of possible defects and methods of their elimination in table 4. Table 4 Defect Probable reason Method of eliminat Intrinsic error exceeds an ac- The characteristics of circuit Make tuning with the h elp of ceptable value insignificantly... -
Page 13: Storage
49501860.3.0005 РЭ 4 Storage 4.1 Before introduction in operation the transducers should be stored in storehouses according to ГОСТ 12997-84. 4.2 Storage conditions for transducers in transport container: - Ambient Air Temperature ............5 to 50 °С; 5 °... -
Page 14: Annex A. General Form Of The Transducer
49501860.3.0005 РЭ Annex A (informative) General form of the transducer Figure A.1. Model E854 Figure A.2 Model E855... -
Page 15: Annex B. Variants Of Transducer Mounting
49501860.3.0005 РЭ Annex B (informative) Variants of transducer mounting Figure B.1 Mounting on the Rail Figure B.2 Mounting on the Panel... -
Page 16: Annex C. Diagrams Of Transducer Connections
49501860.3.0005 РЭ Annex C (informative) Diagrams of transducer connections ~ 220 V ~ 220 V Е854х Е855х ~ Iвх ~ Uвх а) Е854А b) Е855А Е854В Е855В Е854С Е855С...
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