Time Electronics 1010 DC Voltage Calibrator - Manual (Page 2)

2
1010 Technical Manual 2
C ontents
1. Introduction
............................................................................................................ 3
1.1. General Description ................................................................................................ 3
1.2. Specifications ......................................................................................................... 3
1.3. Power Unit ............................................................................................................... 4
1.4. Circuit Description .................................................................................................. 4
1.5. Applications ............................................................................................................ 4
2. Operation
................................................................................................................ 5
2.1. Operating Procedure .............................................................................................. 5
2.1.1. Operating Position ........................................................................................................ 5
2.1.2. Output terminals ........................................................................................................... 5
2.1.3. Case terminal ............................................................................................................... 5
2.2. Front Panel Controls .............................................................................................. 5
2.2.1. Supply on/off ................................................................................................................. 5
2.2.2. Output polarity .............................................................................................................. 5
2.2.3. Battery level .................................................................................................................. 5
2.2.4. Output voltage range .................................................................................................... 5
2.2.5. Output level: ................................................................................................................. 5
2.3. Output noise ........................................................................................................... 6
2.4. Common mode noise ............................................................................................. 6
2.5. Thermal emfs .......................................................................................................... 6
2.6. Fuses ....................................................................................................................... 6
2.7. Mains Power Unit .................................................................................................... 7
2.7.1. Type PU2 ...................................................................................................................... 7
2.7.2. Constructional details PU2 ........................................................................................... 7
2.7.3. 240V to 110V conversion ............................................................................................. 7
3. Constructional Layout Details
.............................................................................. 8
3.1. Chopper amplifier module ..................................................................................... 8
3.1.1. Description .................................................................................................................... 8
3.1.2. Module replacement ..................................................................................................... 8
4. Recalibration
.......................................................................................................... 9
4.1. Zero ......................................................................................................................... 9
4.2. Full Scale ................................................................................................................. 9
4.3. Calibration Procedure ...........................................................................................11
4.4. 10mV and 1mV Range Calibration ........................................................................11
5. Guarantee & Servicing
......................................................................................... 12
All Time Electronics' instruments are subject to continuous development and improvement and in consequence
may incorporate minor detail changes from the information contained herein.