Zen is a Comprehensive Monitoring and Communications System for critical power distribution systems.
Local and Remote monitoring options are available for your entire power distribution system. Zen for STS is available on products with Static Transfer Switches, including most ePODs: Power Distribution Units. Zen for Distribution is available on ePODs: Type-X, eRPP, ePanel, and eRDP products.
There are two Zen technologies available, Zen SSQM (Static Switch Quality Monitoring) and Zen DPQM (Distribution Panel Quality Monitoring).
Zen Provides Advanced Power Quality Monitoring Capabilities
Zen is being aware of all all activity in your critical power distribution systems, it is an all encompassing monitoring system with local and remote communications options. From basic monitoring, alarms, to advanced power quality monitoring functionality, Zen provides a wide-range of options to help you maintain the highest level of reliability.
Zen gives you a vendor-neutral “Birds Eye” view of your entire critical power distribution infrastructure. Zen maximizes reliability, letting you know if a source has quality issues, if a UPS output is bad, or if there are any alarms. In addition, Zen empowers users with the capability to go back in time to retrace the exact sequence of historical events. No other tool in the mission-critical industry empowers users with this robust capability.
Zen is an smart meter with three phase power quality analyzer capabilities, useful for monitoring the quality of 3-phase power. Zen DPQM and Zen SSQM is the best energy monitor available, providing power quality analysis capabilities useful for industrial power monitoring and power consumption. Offering more capabilities than a standard kwh power meter, or a standard metering system for recording consumption of electricity, Zen offers remote monitoring, power quality monitoring, and waveform captures of power events.
Zen Local Viewing Options
Zen Data Is Accessible via Local Display. Zen DPQM products have the options for either an LCD membrane display panel, or a 7" color touch screen. Zen SSQM products are equipped standard with a 15" color touch screen.

Remote Connectivity Options
Zen provides connectivity options for Ethernet, Bluetooth, and SNMP. In addition, Zen synchronizes with network clocks via Network Time Protocol (NTP).
Zen helps you simplify operations, management of databases, and consistency of information with Bluetooth connectivity. Zen connects via a Bluetooth-enabled computer over a normal web-browser interface to input Circuit ID, Circuit Parameters, and Circuit Set Points. The Zen circuit monitor becomes the central database of accurate, up-to-date information. IT databases can be synchronized with the Zen database using SNMP interface.
Remote Connectivity via http, Bluetooth, SNMP, and Modbus/TCP
Interactive One Line Diagrams
Please select a product to view interactive one-line diagrams.
Series 70: ePanel-1
Click the buttons below to toggle monitoring visibility.

Series 70: ePanel-2

Series 70: ePanel-HD

Series 70: eRPP/eRPP-FS

Series 70: eRDP/eRDP-FS

Series 70: eSTS/eGIS

Series 70 ePODs: Type-P

Series 70 ePODs: Type-S
Series 70 ePODs: Dual Type-P
Dual Type-P One Line Currently Unavailable.
Series 70 ePODs: Type-N
Series 70 ePODs: Type-X

Zen DPQM is Expandable
LayerZero's Zen DPQM System is based on a Panel Board Monitor (PBM) with modular expansion boards. Support ranges from 42-circuit panel boards to 168-circuits.
Zen Monitoring Comparison
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Technical Specifications |
STS Monitoring Specifications |
ePODs Monitoring Specifications |
Voltage Monitor |
Voltage Monitor |
Voltage Monitor |
Volts (L-L) Phase A/B/C (volts RMS) |
Voltage (Volts) |
Voltage |
Volts (L-N) Phase A/B/C (volts RMS) |
Voltage Average of Phases (Volts) |
Frequency (Hertz) |
Phase Rotation |
Phase Rotation |
Phase Rotation |
Current Monitor |
Current Monitor |
Current Monitor |
CT Reversed Phase A/B/C/N |
Current (Amps) |
Current (Amps) |
Current Phase A/B/C/N (Amps RMS) |
Current Average of Phases (Amps) |
|
Power Monitor |
Power Monitor |
Power Monitor |
Frequency (hertz) |
Frequency (Hertz) |
Current Fraction of Fating (Percent) |
Real Power (kilowatts) |
Real Power (kilowatts) |
Real Power (kilowatts) |
Apparent Power (kilovolt-amperes) |
Apparent Power (kilovolt-amperes) |
Apparent Power (kilovolt-amperes) |
Reactive Power (kilovolt-amperes reactive) |
Reactive Power (kilovolt-amperes reactive) |
Reactive Power (kilovolt-amperes reactive) |
Power Factor |
Current Imbalance (Percent) |
Current Imbalance (Percent)
|
Energy (kilowatt-hours) |
Power Factor |
Power Factor |
Block Demand (kilowatts) |
Crest Factor |
Crest Factor |
Block Demand Peak (kilowatts) |
Crest Factor Average of Phases |
K Factor |
Rolling Demand (kilowatts) |
Phase Difference Between Sources |
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Rolling Demand Peak (kilowatts) |
Phase Difference Between Sources and Output |
|
Power Quality |
Power Quality |
Power Quality |
Percent VTHD (percent) |
Total Harmonic Distortion (Percent VTHD) |
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Waveform Capture |
Waveform Capture |
Waveform Capture |
Alarms |
Alarms |
Alarms |
Phase - Under Voltage A/B/C (Alarm) |
Summary Alarm |
Summary Alarm |
Phase - Over Voltage A/B/C (Alarm) |
On Source (1/2/3) |
Voltage (High, Low) |
Phase - Low Voltage A/B/C (Warning) |
Source Fail (1/2/3) |
Overload |
Phase - High Voltage A/B/C (Warning) |
Source Preferred (1/2/3) |
Thermostat (High, Low) |
Phase - Over Current A/B/C (Alarm) |
Source 1st Alternate (1/2/3) |
THD Over Limit |
Phase - High Current A/B/C (Warning) |
Source Over/Under Voltage (1/2/3) |
Frequency (Over, Under) |
Under Frequency (Alarm) |
Source Over/Under Frequency (1/2/3) |
I A/B/C K-Factor Over Limit |
Over Frequency (Alarm) |
Source Not Available (1/2/3) |
Average K-Factor Over Limit |
High VTHD (Warning) |
Output Failure |
Incorrect Phase Rotation |
Over VTHD (Alarm) |
Source Overcurrent (1/2/3) |
Voltage Failure |
Phase Rotation (Alarm) |
Source Exceeds Manual Limit (1/2/3) |
I G1/G2 Over Ground Fault Limit |
Source Exceeds Automatic Limit (1/2/3) |
I G1/G2 Over Ground Overcurrent Limit |
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Bypassed to Source (1/2/3) |
TVSS 1/2/3/4 Failure |
Zen: Only from LayerZero
Zen is the most technologically advanced power quality system available today.
To learn more, download our PDF Zen brochures:
Zen gives critical facilities the capability to positively know the root cause of power quality anomalies. Zen prevents downtime by allowing facilities to analyze and repair problems the first time, at the root cause.