Testboy TV 455VDE-tester Testboy TV 455 Manuale Utente

9.7.4  Online terminal voltage monitor 
 

10 

÷ 550 

1 

±(2 % of reading + 2 digits)

 
 

 
Models TESTBOY TV 450 and TESTBOY TV 450 (TYPE B): 
 
Power supply voltage........................ 9 V

DC

 (6

×1.5 V battery or accu, size AA) 

Operation.......................................... typical 20 h 
Charger socket input voltage ............ 12 V 

± 10 % 

Charger socket input current ............ 400 mA max. 
Battery charging current ................... 250 mA (internally regulated)  
Overvoltage category........................ 600 V CAT III / 300 V CAT IV 
Plug commander 

overvoltage category ................ 300 V CAT III 

Protection classification .................... double insulation 
Pollution degree................................ 2 
Protection degree ............................. IP 40 
 
Display ............................................ 128x64 dots matrix display with backlight 
 
Dimensions (w 

× h × d) ..................... 14 cm × 8 cm × 23 cm 

Weight   ............................................ 1.0 kg, without battery cells 
 
Reference conditions 
Reference temperature range........... 10 

°C ÷ 30 °C 

Reference humidity range................. 40 %RH 

÷ 70 %RH 

 
Operation conditions 
Working temperature range .............. 0

 

°C ÷ 40 °C 

Maximum relative humidity ............... 95 %RH (0

 

°C ÷ 40 °C), non-condensing 

 
Storage conditions 
Temperature range ........................... -10

 

°C ÷ +70 °C 

Maximum relative humidity ............... 90 %RH (-10

 

°C ÷ +40 °C) 

 

 

80 %RH (40

 

°C ÷ 60 °C) 

Model TESTBOY TV 450 (TYPE B): 
 
Communication transfer speed 
RS 232  115200 baud 
USB 256000 

baud 

Memory size......................................1700 results 
 
The error in operating conditions could be at most the error for reference conditions 
(specified in the manual for each function) +1 % of measured value + 1 digit, unless 
otherwise specified in the manual for particular function.