wtw LF 318, Инструкции по эксплуатации

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Technical data
23
Environmental conditions
Ambient temperature
Relative humidity
Operation: -10°C ... +55°C
Storage: -25°C ... +65°C
Yearly mean: < 80 %
30 days/year: < 100 %
Remaining days: < 90 %
EMC
Interference transmission
Disturbance
Technical fundamental standard EN 50081-1
FCC class A
Technical fundamental standard EN 50082-2
Namur recommendation (higher specifications)
Power supply 4 x 1.5 V batteries, Type AA
Operation time
*
1000 - 3000 operating hours with
alkali/manganese batteries
Energy reduction by automatic switch-off after approx. 3 hours
Housing
Dimensions / Weight 172 x 80 x 37 mm / approx. 0.3 kg
Instrument security
Protection class
Protection system
IEC 1010 / class 3
IEC 529 / IP 66
*
: acc. to conductivity range .