Integrating-averaging Sound Level Meter Type 2240 – Instruction Manual22
4.14 Power Supply
4.14.1 Input Voltage Range
1.8 V to 3.5 V
4.14.2 Batteries for Type 2240
Type: 2 × LR6/AA-size 1.5 V alkaline
Lifetime (at 20°C): 16 hours continuous use (decreases significantly at low temperatures)
4.15 Warm-up Time
Warm-up Time: <5 seconds after reaching equilibrium with the ambient environment.
4.16 CE-mark and C-Tick mark Compliance
,
CE-mark indicates compliance with the EMC Directive and Low Voltage Directive.
C-Tick mark indicates compliance with the EMC requirements of Australia and New
Zealand.
Safety EN 61010–1 and IEC 61010–1: Safety requirements for electrical equipment for
measurement, control and laboratory use.
UL 3111–1: Standard for Safety – Electrical measuring and test equipment.
EMC Emission EN 61000–6–3: Generic emission standard for residential, commercial and light
industrial environments.
CISPR 22 (1997): Limits and methods of radio disturbance characteristics of information
technology equipment. Class B Limits.
FCC Rules: Class B limits.
IEC 60651, IEC 60804 and IEC 61672–1.
EMC Immunity EN61000–6–2 (2001): Generic standard – Immunity for industrial environment.
IEC 60651, IEC 60804, IEC 61260 and IEC 61672–1: Instrumentation standards.