TESTBOY TV 450
Table of contents
3
Table of contents
1
Preface ....................................................................................................................6
2
Safety and operational considerations.................................................................7
2.1
Warnings and notes ..........................................................................................7
2.2
Battery and charging .......................................................................................10
2.2.1
New battery cells or cells unused for a longer period...............................11
2.3
Standards applied ...........................................................................................12
3
Instrument description.........................................................................................13
3.1
Front panel ......................................................................................................13
3.2
Connector panel ..............................................................................................15
3.3
Back side.........................................................................................................16
3.4
Display organization ........................................................................................17
3.4.1
Terminal voltage monitor..........................................................................17
3.4.2
Battery indication......................................................................................17
3.4.3
Message field ...........................................................................................17
3.4.4
Result field ...............................................................................................18
3.4.5
Sound warnings .......................................................................................18
3.4.6
Help screens ............................................................................................18
3.4.7
Backlight and contrast adjustments..........................................................19
3.5
Instrument set and accessories.......................................................................20
3.5.1
Standard set TESTBOY TV 450...............................................................20
3.5.2
Standard set TESTBOY TV 450 (TYPE B)...............................................20
3.5.3
Optional accessories ................................................................................20
4
Instrument operation............................................................................................21
4.1
Function selection ...........................................................................................21
4.2
Settings ...........................................................................................................22
4.2.1
Language .................................................................................................22
4.2.2
Initial settings ...........................................................................................23
4.2.3
Memory (model TESTBOY TV 450 (TYPE B)).........................................24
4.2.4
Date and time (model TESTBOY TV 450 (TYPE B))................................24
4.2.5
RCD standard ..........................................................................................25
4.2.6
Isc factor...................................................................................................26
4.2.7
Commander support.................................................................................26
5
Measurements ......................................................................................................28
5.1
Voltage, frequency and phase sequence ........................................................28
5.2
Insulation resistance........................................................................................30
5.3
Resistance of earth connection and equipotential bonding .............................32
5.3.1
R LOW
Ω
, 200 mA resistance measurement ............................................33
5.3.2
Continuous resistance measurement with low current
(model TESTBOY TV 450 (TYPE B)) .......................................................34
5.3.3
Compensation of test leads resistance.....................................................35
5.4
Testing RCDs ..................................................................................................36
5.4.1
Contact voltage (RCD Uc)........................................................................37
5.4.2
Trip-out time (RCDt) .................................................................................38
5.4.3
Trip-out current (RCD I)............................................................................39
