Data Sheet for Product

Page 2 of 8 Siemens Industry, Inc.
Key Features
Electrical Metering Features
• 12 channels: Multi-circuit submeter monitors
voltage, current, power, energy, and many other
electrical parameters on any combination of single
and/or three-phase systems.
• Line-Powered: 90 to 600V phase-to-phase power
supply
• Revenue grade; ANSI C12.20-2010 Class 0.2
• Available with UL 94-V0 enclosure or as a circuit
board on a mounting plate that helps facilitate
easy, safe installation. A separate high-voltage
cover offers an additional level of protection within
the enclosure model.
• Meter display option provides real-time information
about the meter configuration and metered data.
• Mix-and-match a full range of Split Core or
Rogowski Coil CTs, including several revenue-
grade, high accuracy CT options. PhaseChek™
confirms proper current transformer orientation.
• UL Listed (enclosure version) or UL Recognized
(mounting plate version).
• CE Mark.
Building Automation System Support Features
• BACnet or Modbus protocols both available via
RS-485 or Ethernet connections.
• Over 100 electrical metering data registers provide
very flexible sub-metering and analysis options.
• Floating Point: IEEE-754 data format allows for
bidirectional monitoring, eliminates scaling factors.
• Correlate the consumption of a variety of systems
using the four dry-contact pulse inputs. Configure
each input independently with custom units of
measure within the ViewPoint HD software. Pulse
inputs are compatible with “low speed” meters.
• The power meter hosts a Web Application that can
be accessed by any smart device running a web
browser. The Web Application is accessed by
using the USB or Ethernet port on the meter.
Key Hardware/Software Features
EASY DEPLOYMENT
Setting the MD-12HD up for a new deployment has
never been easier, thanks to two features:
Network Scan
Using ViewPoint HD Software, you can now quickly
scan and find all the MD-12HD and MD-48HD meters
installed on the network. The results page shows each
meter’s system description and even allows for some
basic meter setup directly from the scan window. Use
ViewPoint HD to give each meter a “friendly” name,
such as “3rd Floor Utility Rm,” to identify the desired
meter even faster.
Pre-Configuration
Maybe you have several meters that need to be
configured the same way. Or, maybe you don’t have
the meter in your possession, but need to configure it
ahead of time for an installer. With the ViewPoint HD
software, you can build a meter configuration file
without having a meter connected. This is especially
helpful when configuration and installation occur in two
separate steps.
INTERVAL DATA RECORDING AND RTC
The MD-12HD meter maintains an internal log of the
energy data (Net kWh) for each channel in the meter.
The meter’s non-volatile memory stores up to 63 days
of 15-minute kWh data for downloading in the event of
lost communication with the BAS or controller. The
CSV data file can be downloaded through a direct USB
or Ethernet connection using ViewPoint HD software
and can be used to backfill any missing data. This
feature works automatically in the background to
record data, no configuration is required.
In addition, this meter has a capacitor-backed real-time
clock (RTC) that is used to ensure an accurate time
stamp on all recorded data. Unlike other systems,
there is no battery to change and the capacitor retains
calendar time for up to one week. The clock can be
synchronized with the laptop clock during meter setup.
ALARMS
Alarms can be set on any MD-12HD meter channel via
the ViewPoint HD software. Alarms are triggered by
voltage or current over/under events. The persistence
setting is also adjustable to allow start-up transients.
A Master Alarm relay can be hard wired to an interrupt
or polling circuit within the BAS to allow for a faster
alarm response than the data polling frequency.