620 Series
30
j) Power Supply Voltage Range
The CEL-62X can be powered from three internally fitted AA batteries, or an external 12VDC
supply (2.1mm connector, tip +ve), or 5VDC USB supply from a PC.
Internal batteries – range 3 to 5 volts. The battery condition symbol will start to flash as a
warning when the batteries have discharged to 3.3 volts, and the meter will stop a run and turn
off when the batteries have discharged to less than 3 volts to ensure no data is measured that
does not meet the requirements of IEC 61672.
12VDC supply range is 9 to 14 volts.
USB supply range is 4.5 to 5.5 volts.
k) Display Device
The display device will display the complete linear operating range.
l) Environmental Stabilisation Time
The typical time to stabilise after sudden changes in environment conditions.
5 minutes after a 10
o
C change in temperature.
5 minutes after a 30% change in humidity (non-condensing).
15 seconds after a 5kPa change in ambient pressure.
m) Electric Field Strength Greater Than 10 V/m
The 620 series has not been tested for field strengths greater than 10 V/m.
n) EMC Emissions
Emissions were no greater in any one plane or any mode of operation.
o) EMC Susceptibility
The CEL-62X has slightly higher susceptibility with the Y plane facing the radiating antenna.
X is in the direction of the microphone, Z is in the direction of the display, and Y is in the direction
side-on to the case.
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