|Electronic Measurements Inc. SCR 1 Power supply|
Electronic Measurements Inc.
The following specification describe the operational characteristics off this series of power supplys. All units are shipped with ac barrier strip located on the back of the unit. Available Rating Sizes: 600W* lOOOW 1800W* 2600W AC Input: 600W - 115 plus or minus 10% - 47-63 Hz 1Q00W — 115 plus or minus 10% 47—63 Hz 1800UJ - 115 plus or minus 10% 47-63 Hz Note: All above units have an optional 208/220 Vac plus or minus 107., 47-63 Hz t 260©W - 208/220 plus or minus 107. 47-63 Hi REGULATION Voltage Mode: For line voltage variations and load current variations within the rating of the supply* the output voltage will not vary more the .IX of maximum voltage rating. Current Mode: For line voltage variations and load voltage variations within the rating of the supply» the output current will not vary more than . 25% of maximum current rating. Ripple: Measured with either positive or negative grounded and 100% output voltage fnd current into a resist ive load. < See Rating Chart) Stability: The output voltage or current will remain with 0.05% for 8 hours after warm-up* with constant external effects. Transient Response: Upon instant application of loads up to 50% or the maximum rating of the supply/ the output voltage will typically recover to within 1 0% of its final value within 50mS Ins tan taneous line variations are corrected for within 50mS of their occurance Temperature Coefficient: Output voltage TC is 0.02% per degree C of maximum rating. Output current T. C. is 0.03% per degree of maximum rating. Operating Temperature 0-50 degrees C with no derating required Consult factory for output rating at higher temperatures
These manuals are available for the above equipment:
|Electronic Measurements Inc. -- SCR 1 -- Service and User Manual|
|Manual Type||Service and User Manual|
|Size||3.77 Mbytes (3950006 Bytes)|
|Date||01 January 1983|
|Quality||Scanned document, reading partly badly, partly not readable.|
|Upload date||03 October 2016|
|Downloads||362 since 03 October 2016|
SECTION I GENERAL INFORMATION 1.1 Introduction Page 1 1.2 Specifications 1 SECTION II INSTALLATION 2. I Initial Inspection 4 2.2 Mechanical Check 2.3 Power Requirements 2.4 Cooling 5 2.5 Mechanical SECTION III OPERATION INSTRUCTION 3. Turn—On Check Out Procedure 7 3.1. t Over Voltage Output 8 3.2 General Operation 8 3.3 Modes of Operation 10 3. 3. Normal Operation 10 3.3.2 Remote Sensing 11 3. 3. 3 Remote Programming 12 3.3.4 Remote Programming by External Resistance 12 3.3.5 Remote Programming by External Voltage 13 3.3.6 Remote Programming by External Current 14 3.3.7 Parallel Operation 15 3.3.8 Parallel Operation Master/Slave 16 3.3.9 Series Operation 17 3.3. 10 Remote Meters 17 SECTION IV PRINCIPLES' OF OPERATION 4. 1 General 18 4.2 Power Flow 18 4.3 Signal Flow 19 4.4 SCR Firing- Circuit 20 4.5 Metering and Auxiliary Function's 21 SECTION V MAINTENANCE AND TROUBLESHOOTING 5. 1 General 22 5.2 Inspection and Cleaning 22 5.3 Calibration 22 5.3.2 Firing Balance 23 5.4 Troubleshooting 23 5.4. Overall Troubleshooting Procedure 24 5. 4. 2 Troubleshooting Chart 24 5.4.3 Overvoltage Troubleshooting 27 5.5 Primary Diode Replacement
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