Fluke 433 - Page 4

Fluke 433, 434, 435
Service Manual
ii
3.6. Verification of Current Inputs..................................................................... 3-6
3.6.1 Preparation............................................................................................ 3-6
3.6.2 Accuracy............................................................................................... 3-6
3.6.2 Bandwidth check of current channels (*)............................................. 3-7
3.7 Voltage Inputs.............................................................................................. 3-7
3.7.1 Introduction .......................................................................................... 3-7
3.7.2 Verification of voltage inputs in 120 V range...................................... 3-9
3.7.3 Verification of voltage inputs in 230 V range...................................... 3-10
3.7.4 Verification of voltage inputs in 400 V range...................................... 3-12
3.7.5 Verification of voltage inputs in 6 kV range (Transients).................... 3-14
3.8 Channel Isolation (*) ................................................................................... 3-16
4 Calibration Adjustment....................................................................... 4-1
4.1 General......................................................................................................... 4-3
4.1.1 Introduction .......................................................................................... 4-3
4.1.2 Calibration number and date................................................................. 4-3
4.1.3 General instructions.............................................................................. 4-4
4.1.4 Equipment required for calibration....................................................... 4-4
4.2 Calibration Procedure Steps......................................................................... 4-4
4.3 Starting The Calibration............................................................................... 4-5
4.4 Contrast Calibration Adjustment ................................................................. 4-7
4.5 Warming Up ................................................................................................ 4-8
4.6 Final Calibration .......................................................................................... 4-9
4.6.1 Offset adjustment.................................................................................. 4-9
4.6.2 Low voltage and current gain adjustment............................................. 4-10
4.6.3 Voltage gain adjustment....................................................................... 4-10
4.7 Save Calibration Data And Exit................................................................... 4-12
5 Disassembling the Analyzer............................................................... 5-1
5.1. Introduction................................................................................................. 5-3
5.2. Disassembly & Reassembly Procedures..................................................... 5-3
5.2.1 Required Tools ..................................................................................... 5-3
5.2.2 Removing the Tilt Stand & Hang Strap................................................ 5-3
5.2.3 Replacing the Side-Strap, Changing the Side-Strap Position............... 5-4
5.2.4 Opening the Analyzer, Removing the Battery...................................... 5-4
5.2.5 Removing the Main PCA Unit ............................................................. 5-6
5.2.6 Removing the Display Assembly......................................................... 5-7
5.2.7 Replacing the LCD Window/Decal...................................................... 5-8
5.2.8 Removing the Keypad and Keypad Foil............................................... 5-8
5.2.9 Disassembling the Main PCA Unit ...................................................... 5-8
5.2.10 Reassembling the Main PCA Unit...................................................... 5-9
5.2.11 Reassembling the Analyzer ................................................................ 5-9
6 List of Replaceable Parts.................................................................... 6-1
6.1 Introduction.................................................................................................. 6-3
6.2 How to Obtain Parts..................................................................................... 6-3
6.3 Service Centers ............................................................................................ 6-3
6.4 Final Assembly Parts ................................................................................... 6-4
6.5 Main PCA Unit Parts................................................................................... 6-6
6.7 Accessories .................................................................................................. 6-7