Electronic Measurements Inc. SCR 1 Power supply
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Model:
SCR 1
Date:
1983
Category:
Group:
Description:
Information
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
Manual type:
Service and User Manual
Pages:
80
Size:
3.77 Mbytes (3950006 Bytes)
Language:
english
Revision:
Manual ID:
Date:
1983 01 01
Quality:
Scanned document, reading partly badly, partly not readable.
Upload date:
2016 10 03
MD5:
8cd970a0b6a7da117181cb5c7e86fd5a
Downloads:
1005
Information
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