Time Electronics 1048 Voltage-Current-Loop Calibrator - Manual (Page 2)

2
V1.2 30/12/10 P a g e | 2 1048 Technical Manual
C ontents
1.
Introduction .................................................................................................... 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 P recautions ................................................................................. 13
5.1. Display ...........................................................................................................13
5.2. Usage & Storage ...........................................................................................13
5.3. Automatic power down disable ...................................................................13
6.
P ower S upplies ............................................................................................ 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.
G uarantee & 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.