Measurlogic DTS 310 User manual

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DTS 310
DIN – Rail Mounted, Indoor Rated
Revenue Grade Electrical Sub-meter

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1 PRODUCT OVERVIEW......................................................................................................................................................... 3
1.1 SUPPLIED ITEMS ..................................................................................................................................................................... 3
1.2 DOCUMENT CONVENTIONS ...................................................................................................................................................... 4
1.3 PRODUCT SPECIFICATION ......................................................................................................................................................... 4
1.3.1 Current Inputs ............................................................................................................................................................ 4
1.3.2 Service Type ............................................................................................................................................................... 4
1.4 DTS 310 LAYOUT................................................................................................................................................................... 5
2 INSTALLATION ................................................................................................................................................................... 6
2.1 ENVIRONMENT....................................................................................................................................................................... 6
2.2 SAFETY GUIDELINES ................................................................................................................................................................ 6
2.3 PRODUCT DIMENSIONS............................................................................................................................................................ 7
2.4 MOUNTING REQUIREMENTS AND GUIDELINES ............................................................................................................................. 7
3 CONNECTING TO THE DTS 310 ........................................................................................................................................... 8
3.1 WIRING VOLTAGE AND CURRENT INPUTS .................................................................................................................................... 8
3.1.1 Wiring Examples ........................................................................................................................................................ 8
3.2 CONNECTING MULTIPLE LOADS................................................................................................................................................. 9
3.3 DC AUXILIARY POWER........................................................................................................................................................... 10
4 MAINTENANCE AND SERVICE........................................................................................................................................... 11
5 DTS 310 COMMUNICATIONS INTERFACE.......................................................................................................................... 11
5.1 MODBUS AND BACNET RS-485 2-WIRE COMMUNICATIONS ....................................................................................................... 11
5.2 LONWORKS TP/FT – 10 COMMUNICATIONS............................................................................................................................. 12
5.2.1 Wiring Requirements ............................................................................................................................................... 12
5.2.2 Adding the DTS 310 to an existing LonWorks Network via Service Pin .................................................................... 12
5.2.3 Adding the DTS 310 to an existing LonWorks Network via Neuron ID .................................................................... 12
5.3 ETHERNET COMMUNICATIONS ................................................................................................................................................ 13
5.4 KWHPULSE OUTPUT (MODEL DEPENDENT).............................................................................................................................. 13
5.5 CONFIGURING DIP SWITCHES – COMMUNICATION AND PULSE OUTPUT SETTINGS............................................................................ 13
5.5.1 Configuring DIP Switches – Modbus RTU................................................................................................................. 14
5.5.2 Configuring DIP Switches – BACnet MS/TP .............................................................................................................. 14
5.5.3 Configuring DIP Switches – Pulse Output................................................................................................................. 15
6 LED DEFINITIONS ............................................................................................................................................................. 16
6.1 STATUS LED........................................................................................................................................................................ 16
6.2 REMOTE LED....................................................................................................................................................................... 16
6.3 PULSE LED.......................................................................................................................................................................... 17
7 INSTALLATION OF DTS CONFIG AND MONITORING SOFTWARE ....................................................................................... 17
8 MAINTENANCE AND SERVICE........................................................................................................................................... 17
8.1 CLEANING INSTRUCTIONS ....................................................................................................................................................... 17

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1 PRODUCT OVERVIEW
The one revenue grade meter for all applications.
Your DTS 310 energy sub-meter is one of the most versatile meters available on the market. The DTS 310 can
operate in any environment, requires no external power source to operate, and works with all UL or ETL listed
333mV current transformers.
For ease of installation, the DTS 310 is designed to be compact and fit into most DIN-rail systems.
Some of the exciting features provided with the DTS 310 are
Easy to attach pluggable terminals
RS-485 or Ethernet Communications depending on model
Auto-topology Phase Detection and on-board CT Algorithms for automatic correction of reversed field
mounted CTs
For remote configurability, your DTS 310 comes with our freely downloadable DTS Config software tool
The DTS 310 provides you very accurate data acquisition and is certified to ANSI C12.20 Class 0.5 Revenue
Grade.
Also, if in the future, you decide to integrate renewable energy sources, the DTS 310 will conveniently operate as
a Bi-Directional NET meter. Easily integrates with Building Automation Systems and Energy Monitoring Softw are.
Designed and Manufactured in the USA and complies with the Buy American Provisions of ARRA Section 1605.
Thank you for choosing Measurlogic and a meter from the DTS Family.
1.1 Supplied Items
Check that the meter and equipment matches your order specifications and has not been damaged during
shipping. Verify that the following item(s) match with the corresponding model from the data sheet :
Quick Start Guide
DTS 310 power & energy meter
10-Pin green pluggable screw terminal connector for Voltage inputs
6-Pin green pluggable screw terminal connector for Current inputs
3-Pin green pluggable screw terminal connector for Remote RS-485 Communications depending on model
6-Pin green pluggable screw terminal connector for digital I/O depending on model

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1.2 Document Conventions
SYMBOLS
ATTENTION – PLEASE CONSULT THE
INSTALLATION MANUAL
WARNING – RISK OF ELECTRICAL
SHOCK
1.3 Product Specification
WARNING
The DTS 310 is intended for
480V L-L Measurement Category III use.
Do NOT exceed this usage.
Use the model number of the DTS 310 to verify that
it is suitable for the voltage, type and category
of the installation.
Failure to use the correct CT’s, and/or connecting too high
a voltage can result in death or personal injury,
and may permanently damage the DTS meter.
DTS 310 - Ax-xx-x-F-xx
1.3.1 Current Inputs
Current
Inputs
Value
Description
Notes
A
3
333mV CT
Any 333mV CT is acceptable
9
Unburdened CT
Only use the CT’s that came with the unit
1.3.2 Service Type
Service Type
Value
Description
Neutral Required
Neutral Optional
F
N
(1P 2W, 1P 3W, 3P 4W) 120 – 277Vac L– N
●
2
(3P 3/4W) 208 – 240 Vac L– L
●
4
(3P 3W) 480 Vac L– L
●

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1.4 DTS 310 Layout
Current Connections
Section 3.1 pg 8
Voltage Connections
Section 3.1 pg 8
Remote Communications
Section 5 pg 11
Digital I/O
Section 5.4 pg 13
ETL Mark
DTS 310 Meter Model Number
Serial Communications
Section 5.1 pg 11
Dip Switches
Section 5.5 pg 13
Status LEDs
Section 6.1 pg 16
Pulse LED
Section 6.3 pg 17
Remote LED
Section 6.2 pg 16
DC Auxiliary Power
Section 3.1 pg 8
Ethernet Communications
Section 5.3 pg 13

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2 INSTALLATION
2.1 Environment
Operating Temperature: -4oF to 131oF (-20oC to 55oC)
Storage Temperature: -40oF to 185oF (-40oC to 85oC)
Relative Humidity: 5% to 95% (non-condensing)
Operating Altitude: Up to 2,000m
2.2 Safety Guidelines
WARNING
The following installation instructions are intended for qualified personnel only. To avoid
the risk of electrical shock and personal injury, do not perform additional tasks not stated
in this procedure unless you are qualified to do so.
Always adhere to the following safety guidelines:
Only qualified personnel or licensed electricians should handle the installation. Input voltages to
the DTS 310 can be hazardous.
Follow all applicable local and national electric codes.
Verify input voltage and current are within thresholds for the specific DTS 310 model. (See Product
Specification on page 4)
Use only UL or ETL listed current transformers.
ONLY USE CURRENT TRANSFORMERS WITH OUTPUTS THAT ARE COMPATIBLE WITH THE
MODEL OF DTS 310 (SEE SECTION 1.3.1). THE USE OF ANY OTHER CURRENT
TRANSFORMER CAN RESULT IN PERMANENT DAMAGE TO THE DTS 310.
Avoid any electrostatic discharge prior to working on the DTS 310 by first touching a grounded
structure prior to handling the DTS 310.
Before applying power make sure that all current transformer and voltage connections are securely
connected to the input terminals of the DTS 310.
If the DTS 310 is installed incorrectly any built in safety features may no longer be functional.
Before handling the DTS 310 ensure that all power running to the DTS 310 is removed.
The DTS 310 is for indoor use only, and MUST be mounted in a NEC compliant enclosure suitable for
the environmental conditions and locked with a user supplied lock.

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2.3 Product Dimensions
2.4 Mounting Requirements and Guidelines
ATTENTION
Make sure to follow the following mounting requirements
and guidelines when mounting the DTS 310.
When mounting the DTS 310 make sure to follow these guidelines:
Mount the DTS 310 as close as possible to the electrical panel being monitored.
Make sure that there is at least 4” of clearance above and below the DTS 310 for wiring and
connector clearance and ¼” of clearance on both sides for cooling.
Position the DTS 310 such that the labeling can be read from the upright position.
Only UL or ETL rated conduits and glands should be used.
It is recommended that two separate conduits be run for voltage and current connections.
User Supplied UL or ETL certified 2A fast-blow fuses need to be installed between the Voltage
inputs of the DTS 310 and panel being monitored. Recommended Littelfuse BLS002 or equivalent.
14 to 12 AWG wire should be used for the voltage and ground with 300V or 600V insulation
depending on installation type and according to the table below.
A UL or ETL certified 600V circuit-breaker or fused disconnect must be installed within easy reach of
the DTS 310. The circuit-breaker or fused disconnect must be clearly marked as being “the
disconnecting device” for the DTS 310. See table below for the breaker and wire gauge to use.
WIRE & BREAKER GUIDE
Gauge of Wire
Recommended Breaker
14 AWG
15 Amp 600V 3-Pole Breaker
12 AWG
20 Amp 600V 3-Pole Breaker

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3 CONNECTING TO THE DTS 310
3.1 Wiring Voltage and Current Inputs
3.1.1 Wiring Examples
ATTENTION
Make sure that your model of DTS 310 is approved for the
following wiring guidelines.
Note: CTs should be connected to the same panel as the
voltage connections.
Load
Single Phase 2/3 Wire
A
N
B
C
3-Phase with Optional Neutral (Model Dependent)
Load
A
N
B
C

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A
N
B
C
3.2 Connecting Multiple Loads
The DTS 310 allows for ease and flexibility when monitoring multiple branches. The DTS 310 allows multiple CT
sensors to be connected in parallel via the green pluggable screw terminal.
When using parallel CT sensors, the following guidelines must be followed to ensure accurat e measuring.
All CT sensors must have a 333mV output.
All CT sensors must be of the same manufacturer/model number and current rating.
A full set of CT sensors must be used for each load.
The pair of wires from the CT sensor to the green pluggable scre w terminal must be twisted.
All CT sensors must be terminated at the green pluggable screw terminal .
A maximum of 3 loads can be monitored at once (Contact Measurlogic if more than 3 loads must be
monitored).
The measured phase current will be the total current across all the loads on that phase.
The CT primary rating for the DTS 310 must be set to the CT rating * Number of CT sets.
The example below shows how to calculate the service current for figure 3.2.1.
Service Current for Figure 3.2.1
Number of CT Sensor Sets
2
CT Rating
100 Amps
CT Primary
200 Amps
Figure 3.2.1
A
B
C
Load 1
A
B
C
Load 2

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3.3 DC Auxiliary Power
The most common way to power the DTS 310 meter is through the voltage connections. If this situation is not
ideal the DTS 310 meter can be powered through a user supplied DC source.
ATTENTION
Check the DTS 310 model number for the correct DC
voltage to power the DTS 310 through the auxiliary.
WARNING
Make sure that all power is removed from the DTS 310 prior to wiring the DC auxiliary
DTS 310 - xx-xx-x-F-xx
Service Type
Value
Description
F
1
12Vdc external power
3
24 Vdc external power
5
48 Vdc external power
DC Source
+ ‒

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4 Maintenance and Service
ATTENTION
There are NO user serviceable parts in the DTS 310, and no regular
maintenance is required. If additional maintenance is needed, please
contact Measurlogic Inc.
5 DTS 310 COMMUNICATIONS INTERFACE
The DTS 310 has 4 options for outputting data as well as the several communication protocols depending on
the model ordered:
2-Wire RS-485 bus
oModbus RTU
oBACnet MS/TP
LonWorks TP/FT - 10
Ethernet Communications
oModbus TCP
oBACnet/IP
A kWh Energy Pulse Output through a Potential-Free Normally Open (N.O.)
Solid State Relay (SSR).
Do NOT use this output to switch more than 50Vdc.
5.1 Modbus and BACnet RS-485 2-Wire Communications
RS-485 is a Daisy Chained Bus terminated at both ends with 120 Ohms.
DO NOT use a STAR or RING configuration.
Use 18-22 AWG, 2-core, shielded, twisted pair cable.
When fitted with Modbus RTU, unless otherwise stated through correspondence prior to ordering or
specified on the label of the DTS 310 unit, the default communications parameters are as follows:
oModbus Address: 100, Baud Rate: 9600, Parity: None, Data Bits: 8, Stop Bits: 1. This is notated as
9600, N, 8, 1 #100.
Modbus parameters can be changed either through DTS Config or by writing to specific registers in the
meter. Please see the Modbus Map document or section 7 for DTS Config.
When fitted with BACnet MS/TP, unless otherwise stated through correspondence prior to ordering or
specified on the label of the DTS 310 unit, the default communications parameters are as follows:
oDevice Object ID: 100, MAC Address: 100, Baud Rate: 38400, Parity: None, Data Bits: 8, Stop Bits:
1. This is notated as 38400, N, 8, 1 #100.
BACnet parameters must be changed via the BACnet interface.
RS-485 2-Wire
+ to +
- to -
S to S

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LonWorks TP/FT-10
channels are polarity-
insensitive
The “Service” LED
will light up when
the Service Pin is
activated by pressing
the Measurlogic Logo
5.2 LonWorks TP/FT – 10 Communications
5.2.1 Wiring Requirements
The LonWorks model of the DTS 310 has a 2-wire TP/FT – 10 communications port.
Use 18-22 AWG; 2 core; twisted pair cable.
LonWorks TP/FT – 10 ports are non-polarity sensitive.
DTS 310 meters fitted with LonWorks TP/FT – 10 communications can be wired in bus, star, or ring
topologies.
5.2.2 Adding the DTS 310 to an existing LonWorks Network via Service Pin
Open the clear hinged faceplate of the DTS 310.
Press the Measurlogic logo located on the front of the DTS 310. The
LonWorks service pin is located behind the Measurlogic Logo.
While the Measurlogic logo is pressed, the Serviece LED also located on
the front of the DTS 310 should light up RED until the logo is released.
5.2.3 Adding the DTS 310 to an existing LonWorks Network via Neuron ID
The unique Neuron ID can be located on the side label of the DTS 310
and is refered to as NID.

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Digital Input module
or Counter
5.3 Ethernet Communications
Ethernet connection is available through the RJ45 socket located on the side of the DTS Meter .
Modbus TCP, BACnet/IP, SNMP, and DNP3 are available protocols depending on model ordered.
Modbus TCP comes along side any other protocol ordered.
Default IP address of the DTS 310 meter is 192.168.1.150.
Default Modbus Address, BACnet Device ID, and DNP3 address is 100.
IP address can be configured through the DTS Toolbox utility. DTS Toolbox can be downloaded at
http://www.measurlogic.com/software.
5.4 kWh Pulse Output (Model Dependent)
The DTS 310 comes with a Digital I/O port that can be configured for pulse
outputs.
The DTS 310 will pulse at 1kWh by default but can be changed using DTS Config
or by setting the DIP switches found on the side of the meter.
The relay closure of each pulse will last for 100ms (pulse width) with a minimum
delay of 100ms between any two pulses.
The maximum switching voltage is 50Vdc.
Digital I/O pins 1 and 2 are not used for kWh Pulse.
5.5 Configuring DIP Switches – Communication and Pulse Output Settings
DTS 310 meters fitted with Modbus RTU or BACnet MS/TP communications or Pulse
Outputs come with configurable dip switches on the side of the DTS meter next to the
communications port and can be black or red.
Check the model of the DTS 310 to determine what the DIP switches will do.
The switches are used to manually configure:
Modbus Address
BACnet ID
Baud Rate
CT Primary
Pulse Output
ATTENTION
DIP switches should be set with the power completely removed from the
DTS 310. DIP switch settings will overwrite any settings done through
software until the DIP switches are turned OFF.

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5.5.1 Configuring DIP Switches – Modbus RTU
The following table shows how to use the DIP Switches to manually configure a DTS 310 for a Modbus RTU
network.
The Modbus Address is set by flipping the switches 2-8 ON (▼) that add up to the desired address.
Leave any unused switch OFF (▲).
Example: To configure an address of 100 flip switches 2, 3, and 6 ON (▼)
64 + 32 + 4 = 100.
Description
Switch Position
1
2
3
4
5
6
7
8
Modbus Address
64
32
16
8
4
2
1
9600 Baud Rate
Off ▲
19200 Baud Rate
On ▼
Software Configurable Setting
Off ▲
Off ▲
Off ▲
Off ▲
Off ▲
Off ▲
Off ▲
Off ▲
5.5.2 Configuring DIP Switches – BACnet MS/TP
The following table shows how to use the DIP Switches to manually configure a DTS 310 for a BACnet MS/TP
network.
The Device ID and MAC address is set by flipping the switches 2-8 ON (▼)that add up to the desired ID and
MAC. Leave any unused switch OFF (▲).
Example: To configure a BACnet ID and MAC address of 100 flip switches 2,3, and 6 ON (▼)
64 + 32 + 4 = 100.
Description
Switch Position
1
2
3
4
5
6
7
8
Device ID & MAC Address
64
32
16
8
4
2
1
9600 Baud Rate
Off ▲
38400 Baud Rate
On ▼
Software Configurable Setting
Off ▲
Off ▲
Off ▲
Off ▲
Off ▲
Off ▲
Off ▲
Off ▲

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5.5.3 Configuring DIP Switches – Pulse Output
The following tables show how to manually set the CT Primary (CT Rating) as well as some preset pulse outputs.
Switch 3 is not used when configuring Pulse Outputs and should remain OFF ( ▲).
Switch 4-8 (Current “CT” Primary Selection)
CT Primary
SW 4
SW 5
SW 6
SW 7
SW 8
Custom
Off ▲
Off ▲
Off ▲
Off ▲
Off ▲
1
Off ▲
Off ▲
Off ▲
Off ▲
On ▼
5
Off ▲
Off ▲
Off ▲
On ▼
0
20
Off ▲
Off ▲
Off ▲
On ▼
On ▼
25
Off ▲
Off ▲
On ▼
Off ▲
Off ▲
50
Off ▲
Off ▲
On ▼
Off ▲
On ▼
75
Off ▲
Off ▲
On ▼
On ▼
Off ▲
100
Off ▲
Off ▲
On ▼
On ▼
On ▼
125
Off ▲
On ▼
Off ▲
Off ▲
Off ▲
150
Off ▲
On ▼
Off ▲
Off ▲
On ▼
200
Off ▲
On ▼
Off ▲
On ▼
Off ▲
250
Off ▲
On ▼
Off ▲
On ▼
On ▼
300
Off ▲
On ▼
On ▼
Off ▲
Off ▲
400
Off ▲
On ▼
On ▼
Off ▲
On ▼
450
Off ▲
On ▼
On ▼
On ▼
Off ▲
500
Off ▲
On ▼
On ▼
On ▼
On ▼
600
On ▼
Off ▲
Off ▲
Off ▲
Off ▲
750
On ▼
Off ▲
Off ▲
Off ▲
On ▼
800
On ▼
Off ▲
Off ▲
On ▼
Off ▲
900
On ▼
Off ▲
Off ▲
On ▼
On ▼
1000
On ▼
Off ▲
On ▼
Off ▲
Off ▲
1200
On ▼
Off ▲
On ▼
Off ▲
On ▼
1500
On ▼
Off ▲
On ▼
On ▼
Off ▲
1600
On ▼
Off ▲
On ▼
On ▼
On ▼
2000
On ▼
On ▼
Off ▲
Off ▲
Off ▲
2500
On ▼
On ▼
Off ▲
Off ▲
On ▼
3000
On ▼
On ▼
Off ▲
On ▼
Off ▲
4000
On ▼
On ▼
Off ▲
On ▼
On ▼
5000
On ▼
On ▼
On ▼
Off ▲
Off ▲
Switch 1-2 (Pulse Output Mappings)
SW 1
SW 2
Mapping
Off ▲
Off ▲
Preset Custom
Off ▲
On ▼
1 pulse / 0.1kWh
On ▼
Off ▲
1 pulse / 0.5kWh
On ▼
On ▼
1 pulse / 1.0kWh (Default)

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6 LED Definitions
The DTS 310 is equipped with 3 LEDs useful for diagnostics and troubleshooting – STATUS,REMOTE, and
PULSE.
6.1 Status LED
The STATUS LED consists of a repetition of two flashes and shows whether the measured power is being
consumed/imported or generated/exported, as well as the magnitude of the total current.
The First Flash is the “heartbeat” and indicates that the meter is ON and the direction of energy:
The Color and Length of the Second Flash indicates the “total current level” for all the measured phases
relative to the total service current:
oGREEN for 5-80% of total service current
oORANGE for 80-100% of total service current
oRED for >100% of total service current
Relative
Illustration of the Repeating Status LED Sequence for Heartbeat and Relative Measured Current Level
Current
Level
|

Heartbeats are approximately 2 seconds apart

|
Time

%
|
|
50%
HB
HB
80%
HB
HB
>100%
HB
HB
6.2 Remote LED
The REMOTE LED is a communications indicator which is present on all meters fitted with an RS -485
serial port.
The LED will flicker GREEN when the DTS 310 receives data on the BUS and AMBER when the DTS 310
transmits data in response.
Green – Energy is being
consume/imported
Orange – Energy is being
generated/exported

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6.3 Pulse LED
The PULSE LED is an indicator LED that flashes amber every time the measured kWh passes a settable
threshold.
7 INSTALLATION OF DTS CONFIG AND MONITORING SOFTWARE
DTS Config is a program used to easily monitor and configure meters from the DTS family from your l ocal
PC or across the LAN.
Download the latest version of DTS Config from http://www.measurlogic.com/software. Alternatively, an e-
mail can be sent to [email protected] to request the latest version of DTS Config.
Unzip the DTSConfigSetup file and double click the setup.exe file to begin the installation process.
Follow the instructions on the screen.
8 MAINTENANCE AND SERVICE
WARNING
There are NO other user serviceable parts in the DTS 310, and no regular maintenance is
required. If additional maintenance is needed, please contact Measurlogic Inc.
8.1 Cleaning Instructions
Regular cleaning of the DTS 310 is NOT required, but if you do wish to clean the DTS 310, please note the following:
Before attempting to clean the DTS 310 ensure that all power running to the DTS 310 is removed.
Use only a slightly damp cloth to clean the outside of the meter only.
Do not use any harsh chemicals or detergents.
No water or any other liquid must be allowed to enter the meter.
Do not use a spray bottle.
Green – Data being received
Amber – Data being transmitted