Time-electronics 1048 Voltage-Current-Loop Calibrator Manual de usuario descargar pdf (Pagina 2)

V1.2 30/12/10 Page | 2 1048 Technical Manual

Contents

1. Introduc tion .................................................................................................... 3

2. F ront panel controls and operating modes ................................................. 4

2.1. Operating Mode: NORMAL ............................................................................ 5

2.2. Operating Mode: STEP .................................................................................. 5

2.3. Operating Mode: RAMP ................................................................................. 5

3. Normal Operating Mode ................................................................................ 6

3.1.1. Resolution high/low ............................................................................................ 6

3.1.2. Output polarity switch ......................................................................................... 6

3.2. Measure – Voltage ......................................................................................... 7

3.3. Measure – Current ......................................................................................... 8

3.4. Power and calibrate - transmitters/sensors ................................................. 8

3.5. Source – Voltage............................................................................................ 9

3.6. Source – Current............................................................................................ 9

3.7. Sink - transmitter simulator (TX SIM) ..........................................................10

4. Additional Operating Modes ....................................................................... 11

4.1. STEP - Manual ...............................................................................................11

4.2. STEP – Automatic .........................................................................................12

4.3. RAMP .............................................................................................................12

5. Operating Precautions ................................................................................. 13

5.1. Display ...........................................................................................................13

5.2. Usage & Storage ...........................................................................................13

5.3. Automatic power down disable ...................................................................13

6. Power Supplies ............................................................................................ 14

6.1. Auto-power down .........................................................................................14

6.2. Battery Life ....................................................................................................14

6.3. Battery Replacement ....................................................................................14

6.4. Mains Power Supply Adapter .......................................................................14

6.5. Fuse Replacement ........................................................................................14

7. Maintenance ................................................................................................. 15

7.1. Recalibration .................................................................................................15

7.2. Dis-Assembling the Unit ..............................................................................16

7.3. Trimmer Locations .......................................................................................17

7.4. Measure Function Calibration ......................................................................18

7.5. Step Mode Calibration ..................................................................................19

7.6. Current Shunt Calibration ............................................................................19

7.7. Re-Assembling the Unit ...............................................................................20

7.8. Calibration Certificates.................................................................................20

7.9. Front Panel Keypad and Connections ........................................................20

8. S pecifications ............................................................................................... 21

9. Guarantee & S ervicing ................................................................................. 23

All Time Electronics' instruments are subject to continuous development and improvement and in

consequence may incorporate minor detail changes from the information contained herein.

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Time-electronics 1048 Voltage-Current-Loop Calibrator Manual de usuario Pagina 2

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