INSTALLATION INSTRUCTIONS
EMX True RMS Energy Meter
With Traditional Metering CTs
BACnet/Modbus/Pulse
DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
Failure to follow these instructions may cause serious injury or death
•
Do not use this product for life safety applications.
•
Do not install this product in hazardous or classified locations.
•
Only qualified trade installers should install, program, maintain
and test system incorporated therein. Installer is responsible for
compliance of all applicable codes.
•
Read, understand, and follow instructions thoroughly.
•
The Standard CTs associated with this product must be mounted
inside a suitable fire and electrical enclosure. For safe electrical work
practices, see NFPA 70E in the USA or applicable local standards and
codes.
•
Replace all doors, covers, and protective devices before powering
the equipment.
•
Product may use multiple voltage/power sources. Disconnect ALL
sources before servicing.
•
Use a properly rated voltage sensing device to confirm that power
is off. DO NOT depend on this product for voltage indication.
DANGER
•
The installer is responsible for conformance to all applicable codes.
•
For use with Listed Energy Monitoring Current Transformers.
•
Use Copper Conductors Only
•
Per IEC 61010-1 section 8.2.2 "impact test", this product tested with
energy of 2J (reduced from 5J) code: IK07
!
WARNING
Failure to follow these instructions may cause injury, death or
*Low Voltage Input
equipment damage.
Power
15-24VDC
24VAC
Ground
•
If product is used in a manner not specified by the manufacturer,
the protection provided by the product may be impaired.
No responsibility is assumed by the manufacturer for any
consequences arising out of the use of this material.
LIMITATION OF LIABILITY
Senva's liability, whether in contract, in tort, under any
warranty, in negligence or otherwise shall not exceed the
amount of the purchase price paid by the purchaser for the
product. Under no circumstances shall Senva be liable for
special or consequential damages.
*Line/High (H) or Low (L) voltage inputs depend on part number selected
senvainc.com 1-866-660-8864 (F)1-503-296-2529 9290 SW Nimbus Ave. Beaverton Oregon 97008
The Senva EMX Advanced Energy Meter is a 3 channel True
RMS energy meter featuring a color OLED display for simple
commissioning and monitoring. The EMX meets ANSI C12.20
Class 0.2 Standards. The EMX supports both BACnet MS/TP and
Modbus RTU protocols and also includes 2 pulse inputs and 2
pulse outputs.
The EMX supports
output or di/dt signal
for mounting flexibility. See Specifications section for
recommended conductor gauge and terminal tightening
torque.
The Senva EMX Advanced Energy Meter is suitable for
installation on T35 DIN rail. Simply place unit approximately
centered over the mounted DIN rail and press upward until the
bottom clicks into place. Using a flat-nose screwdriver, pull top
tab and apply pressure downward until unit is flush and release
the tab. See Dimensions section for details.
PART
DIN RAIL MOUNT MULTI-BOARD BOX
NAME
106.25mm
RS485 Ground/Shield
RS485 (+)
RS485 ( - )
Data
Pulse
*Low (EMXT-L) Voltage
Status
12-30VDC
Power
Press any
Alarm
key to wake
Press any key to wake
24VAC
Ground
Pulse Input Common
Pulse Input 1
.197in
Pulse Input 2
5.00mm
Pulse Output 1+
.280in
Pulse Output 1 -
7.10mm
EMX Wiring
Pulse Output 2 +
Pulse Output 2 -
Using Traditional metering CTs please wire according to the following
diagram.
*Line/High (H) or Low (L) voltage inputs depend on part number selected
Wiring for connections labeled "Class 2" shall be permanently
separated from those labeled "Class 1" by a minimum of 6
mm by means of clamping, routing, or equivalent means.
Class 2
RS485 Ground/Shield
RS485 (+)
RS485 ( - )
Pulse Input Common
Pulse Input 1
Pulse Input 2
Pulse Output 1+
Pulse Output 1 -
Pulse Output 2 +
Pulse Output 2 -
PWR
GND
FEATURES
metering CTs with either a 0.333V voltage
. The EMX is a class 2 low voltage device
PART
DIN RAIL MOUNT MULTI-BOARD BOX
MOUNTING
NAME
Press any key to wake
DIMENSIONS
ITEM NO.
DISCRIPTION
4.183in
1
2
.197in
3
A(+)
5.00mm
4
B( - )
.280in
5
MOUNTING CLIP
7.10mm
PWR
PWR
EMX Advanced
Energy Meter
ESC
ESC
PWR
GND
PH R
COM
1.134in
IN1
28.80mm
WIRING
PH S
.098in
IN2
2.50mm
O1+
O1-
PH T
O2+
O2-
S
+
-
A/L1
B/L2
C/L3
N
-
+
COM
S
IN1
-
IN2
+
O1+
S
O1-
-
O2+
+
O2-
S
ITEM NO.
4.183in
1
106.25mm
2
3
4
5
Data
EMX Advanced
Energy Meter
Pulse
ESC
ESC
Status
Press any
Alarm
key to wake
PART
DMB-4773
No.
MATERIAL
COLOR
BODY
PC/ABS
GRAY
1.134in
28.80mm
BASE
PC/ABS
GRAY
COVER
PC/ABS
GRAY
.098in
GUARD
PC/ABS
GRAY
2.50mm
*Line (EMXT-H) Voltage
NYLON 66
DARK GRAY
Power Supply
120-600VAC
Power Supply
CVT Connection R/L1/A
2
CVT Connection S/L2/B
CVT Connection T/L3/C
Class 1
Phase R/L1/A Line
Phase S/L2/B Line
Phase T/L3/C Line
Neutral
Phase R -
Phase R +
Shield
Phase S -
Phase S +
Shield
Phase T -
Phase T +
Shield
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