Martindale ET4000 / ET4500 Technical specifications
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9.8 General specifications
Display .............................................. 128x64 dots matrix display with backlight
Communication transfer speed
RS 232 .............................................. 57600 baud
USB .................................................. 256000 baud
Size of memory (ET4500 only) ......... ca 1800 measurements
Power supply .................................... 6 x 1.5V, AA alkaline batteries (IEC LR6, NEDA
15A) or 6 x 1.2V, AA rechargeable Ni-MH
batteries (2100 mAH).
Operation .......................................... typically 20 h
Charger socket input voltage ............ 12 V 10 %
Charger socket input current ............ 400 mA max.
Battery charging current ................... 250 mA (internally regulated)
Dimensions (w h d) ..................... 23 cm 10.3 cm 11.5 cm
Weight ............................................. 1.3 kg, without battery cells
Environmental
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)
Altitude .............................................. upto 2000m
Pollution degree ................................ 2
Safety
Complies with ................................... BS EN61010-1 & BS EN61010-2-030
Measurment category ....................... 600 V CAT III
300 V CAT IV
Functionality complies with BS EN61557 parts 1, 2, 3, 4, 5, 6, 7,10 & 12
Protection class ................................ Class II, double insulation
Protection degree ............................. IP 40
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