Bulletin 77C01A02-E
Power and Energy Meter
POWERCERT
PR300
Power and Energy Meter
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 - TestEquipmentDepot.com
Panel-mounted PR300 for Power Facilities
& Monitoring Energy Consumption
PR300PR300
Power and
Power and
Energy Meter
Energy Meter
Models and Suffix Codes
Model
Phase and wire
system
Input voltage/input
current
Additional input and
output function
Communication
function
Optional measuring
function
Power supply
Phase indication
format
2
PR300
Universal three-phase three-wire system
(single-phase two-wire, single-phase three-wire, and three-phase three-wire systems)
Universal three-phase four-wire system
(single-phase two-wire, single-phase three-wire, three-phase three-wire, and three-phase four-wire systems)
Three-phase four-wire system (2.5 element) Not combinable with 1A AC input.
Universal voltage input (150 V, 300 V, 600 V) / 1 A AC
Universal voltage input (150 V, 300 V, 600 V) / 5 A AC
1 digital input
1 digital input, 1 analog output
1 digital input, 1 pulse output
1 digital input, 1 analog output, 1 pulse output
RS-485 communication
RS-485 communication, Ethernet communication
None
Demand measurement (1 demand alarm output)
100 – 240 V AC !10 % ( 50/60 Hz) or 130 – 300 V DC !15 %
A, B and C indications
R, S and T indications
-!!!!!-6 ! -0
-3
-4
-5
1
2
0
1
2
3
0
3
0
3
-6
A
R
PR300 is a panel-mounted meter designed to meet two user
needs: a power facility meter and a meter for monitoring
energy consumption.
n
i
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n
a
t
s
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u
O
Large Triple
Large Triple
Display
Display
Large Triple Display and Multimeter
Function
Combine three desired measurement items and show them all at once on
the large LED display. Just one PR300 unit can take the place of two or
more meters, dramatically contributing to savings in cost, space and
wiring.
Power-source side
PT
Wh
CT
Load side
• Examples of Display Item Combinations
Display
Display
Pattern-1
Current*
Upper
display
Voltage*
Middle
display
Active
Lower
power
display
Note: The display pattern depends on the specification of the PR300.
Various meters are integrated
into one instrument.
W
PF Hz
PR300 comes with measurement functions for reactive power, apparent
power, demand current, demand power, and other items, as well as with a
transducer function.
Display
Pattern-2
Active
power
Reactive
power
Power
factor
VA
SET/ENT The user can optionally select an item to be
displayed for each line of the display. Even during
measurement, the display parameter can be changed with
one touch using the SET/ENT key.
* Use SEL key to view phase Amps and Volts.
Display
Display
Display
Pattern-3
Active
energy
LEAD
reactive
energy
Apparent
energy
Pattern-4
Current 1
Current 2
Current 3
Pattern-5
Voltage 1
Voltage 2
Voltage 3
Display
Pattern-6
Current*
Voltage*
Frequency
Display
Pattern-7
Current*
Active
power
Power
factor
Display
Pattern-8
Maximum
demand
Demand
Active
power
value
value
R
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e
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C
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e
M
Multifunction
Multifunction
v
e
r
e
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t
e
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a
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e
G
Network
Network
e
r
w
M
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P
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p
S
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F
Universal
Universal
Design
Design
c
e
The demand alarm and network access make
your power monitoring even more efficient.
PR300 comes complete with functions necessary for efficient power
monitoring, including power integration over a desired period, a
transducer function (4 - 20 mA DC output), an integrated pulse output of
electric energy, demand current/power alarm output functions, RS-485
communication (Modbus/PC link), and Ethernet communication.
RS-485
communication
Analog output
11
12
17
11
1
7
9
18
12
19
13
20
14
21
15
22
16
10
Demand alarm output
ALM
+
15
ALM
–
16
+
Output signal:
4 - 20 mA DC
–
23
24
25
LED
Contact capacity:
30 V DC, 200 mA
(open collector)
L+
N–
PE
R
Power supply
23
24
25
Control signal for
optional integration
or demand alarm
release
21
22
Ethernet
communication
RJ45 connector
10BASE-T/100BASE-TX
Fuse
U
V
V
U
VT
Pulse output
+
13
–
14
1S
1L
3S
3L
u
P1
P2
v
P3
v
u
Contact capacity:
30 V DC, 200 mA
(open collector)
23
45
6
8
Power-source side
123
RST
K
k
CT
k
l
L
K
CT
L
l
Load side
PR300 as a Three-phase
Three-wire System
Other RS-485 devices can be connected to the network using Ethernet–serial gateway function.
Universal Design
PR300 versatilely supports a wide range of phases and wire systems,
from a single-phase two-wire system to a three-phase four-wire system.
The phase and/or wire system, including CT/VT ratios, can be selected or
changed on site using the panel keys. For panel mounting, PR300
supports various standards with different shapes and sizes.
i
f
i
17
18
19
20
L
N
PE
c
a
t
i
TERM
A
–
B+
SG
+
Power supply
–
DI+
DI–
o
n
C
R:120Ω
(built-in)
RS-485
h
a
n
g
e
s
Voltage
Current
Active power
Reactive power
Apparent power
Electric energy
Power factor
Frequency
Demand current *
Demand power *
Wide Choice of Measurement Items
Instantaneous value
Instantaneous value
Instantaneous value
Instantaneous value
Instantaneous value
Active Re-
generative
Instantaneous value
Instantaneous value
Demand value
Demand value
Max. value
Max. value
Max. value
Max. value
Max. value
Reactive Reactive
(LEAD) (LAG)
Max. value
Max. value
Max. value
Max. value
Apparent Optional
Min. value
–
Min. value
Min. value
Min. value
Min. value
Min. value
–
–
* denotes optional.
DIN96 square shape ANSI 4-inch round shape
Adaptable to three sizes
using the mounting kit
JIS110 square shape
Other
Accuracy Rating
External Dimensions (H#W#D mm)
(including a terminal cover)
Power Consumption
Voltage, Current: !0.25 % of F.S.
Active power: !0.5 % of F.S.
Active energy, optional active energy: !0.5 %
ANSI 4–inch round form size: 110 " 110 " 128
DIN 96–square instrument size: 96 " 96 " 126
AC drive: 10 VA maximum, DC drive: 5 W maximum
3
All Rights Reserved, Copyright 2006, Yokogawa Electric Corporation.
Subject to change without notice.
c
Integrated power monitoring by
Browser-assisted monitoring by
PR300 (power)
(Ethernet-serial gateway)
Data acquisition and monitoring using the recorder
The Ethernet-serial gateway function enables
connection between the PR300 and RS-485 devices.
DX2000
Ethernet
RS-485/Modbus communication
PR300 (power) VJU7 VJ (other)
Switch board
(transformer temperature, etc.)
Transformer
PR300 (power) PR300 (power)
Motor Equipment
Network instrumentation by
Data logging by MW100
Monitoring is assisted by the browser, and data are
transferred by the FTP function.
MW100
UT551 (temperature)UM331
Capable of measuring energy and environmental factors
Connection with control devices is possible via the network
(10BASE-T/100BASE-TX). Data logging is performed by
PC.
WEB
FTP
Ethernet
Pump
Ethernet
PR300 (power) PR300 (power)
Motor
Switch board
• Ethernet is a registered trademark of XEROX Corporation.
PR300 (power)
Air-conditioner
PR300 (power)
(Ethernet-serial gateway)
Represented by :
RS-485/Modbus communication
UT321 (temperature)
Electric furnace Tank
(pressure, flow rate, temperature, etc.)
VJA7
Flowmeter
Vig-RM-2E
Printed in Japan, 812(KP)
[Ed : 03/b]
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