Page | 14 DRM-3000 Operating Manual
6.3 Power
The DRM-3000 Meter requires between 9VDC to 15VDC 1.5A to operate and is powered by
one of three options mentioned below:
1. AC Power through a power transformer connected to a cable (6.5ft) which connects
externally to the Power Connector shown below
The AC Power Adapter Features
Output; 12 VDC / 2 Amps
Universal Input Range 100~240Vac 50~60 Hz
Safety: UL/CUL/PSE/BSMI/RCM/GS
EMI: CE/FCC Class B: Conduction & Radiation Met.
Protection: OVP (Over Voltage Protection), SCP (Short Circuit Protection), OCP (Over
Current Protection)
2. POE (Power over Ethernet) which uses a standard configuration of 10/100BASE-TX PoE
which is IEEE802.3 af/at compliant.
3. Internal Battery which provides 24 hours operation at background radiation levels.
The DRM-3000 will draw power in the following priority: 1. AC Power, 2. POE and 3.
Internal Battery. This means that if all three are connected the Meter will use the AC Power
only and will not use the POE or internal battery.
The DRM-3000 will charge the internal battery only if connected directly to the AC Power.
The DRM-3000 will be capable of supplying 24VDC through the Auxiliary connector only if
connected directly to the AC Power and if the optional DC power board exists in the
Instrument.
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