DMMetering PRO-75 SERIES User manual
®2007
PRO-75 SERIES
DIN rail single phase two wire energy meter
1.1 Safety instruction
1.2 Foreword
1.3 Performance criteria
1.4 Specifications
1.5 Basic errors
1.6 Description
1.7Dimensions
1.8Installation
1.9Operating
1.10 Troubleshooting
1.11Technical support
User manual
®2007
1.1 Safety instructions
Information for Your Own Safety
This manual does not contain all of the safety measures for operation of the equipment
(module, device), because special operating conditions, and local code requirements or
regulations may necessitate further measures. However, it does contain information
which must be read for your personal safety and to avoid material damages. This
information is highlighted by a warning triangle and is represented as follows,
depending on the degree of potential danger.
Warning
This means that failure to observe the instruction can result in death, serious injury or
considerable material damage.
Caution
This means hazard of electric shock and failure to take the necessary safety
precautions will result in death, serious injury or considerable material damage.
Qualified personnel
Commissioning and operation of the equipment (module, device) described in this
manual may only be performed by qualified personnel. Qualified personnel in the
sense of the safety information contained in this manual are persons who are
authorized to commission, start up, ground and label devices, systems and circuits
according to safety and Regulatory standards.
Use for the intended purpose
The equipment (device, module) may only be used for the application cases specified in
the catalogue and the user manual and only in connection with devices and
components recommended and approved by DMMetering.
Proper handling
The prerequisites for perfect, reliable operation of the product are proper transport,
proper storage, installation and assembly, as well as proper operation and
maintenance. When operating electrical equipment, certain parts of this equipment
automatically carry dangerous voltages. Improper handling can therefore result in
serious injuries or material damage.
?Use only isolated tools.
?Do not connect while circuit is live (hot).
?Do not connect the meter to a 3 phase -400VAC –network.
?Place the meter only in dry surroundings.
?Do not mount the meter in an explosive area or expose the meter to dust, mildew
and insects.
?Make sure the used wires are suitable for the maximum current of this meter.
?Make sure the AC wires are connected correctly before activating the
current/voltage to the meter.
?Do not touch the meter connecting clamps directly with your bare hands, with
metal, blank wire or other material as you will have the chance of an electrical
shock.
®2007
?Make sure the protection cover is placed after installation.
?Installation, maintenance and reparations should only be done by qualified
personnel.
?Never break the seals and open the front cover as this might influence the
functionality of the meter, and will avoid any warranty.
?Do not drop, or allow physical impact to the meter as there are high precision
components inside that may break.
Exclusion of liability
We have checked the contents of this publication and every effort has been made to
ensure that the descriptions are as accurate as possible.
However, deviations from the description cannot be completely ruled out, so that no
liability can be accepted for any errors contained in the information given. The data
in this manual is checked regularly and the necessary corrections are included in
subsequent editions. We are grateful for any improvements that you care to
suggest.
Subject to technical modifications without notice.
Copyright
Copyright DMMetering November 2007 All rights Reserved.
It is prohibited to pass on or copy this document or to use or disclose its contents
without our express permission. Any duplication is a violation of the law and subject
to criminal and civil penalties. All rights reserved, particularly in the event of a
patent award or utility model registration.
Registered trademarks
DMMetering®is registered trademark of Inepro Industries Ltd –member of the
Inepro Group. The other names appearing in this manual may be trade names the
use of these names by third parties for their own purposes may infringe the rights
of the owners.
1.2 Foreword
Thank you for purchasing the DMMetering PRO-75 series DIN rail single phase two
wire energy meter. The DMMetering PRO-75 series energy meter is the mo st
advanced type electronic kWh meter available at the market. With the DMMetering
product range we have introduced a large scale of energy meters on the market
suitable for 110V AC to 400V AC (50 or 60Hz). Besides the normal energy meters
we also developed our own pre-paid meters with chip card, chip card re-loaders and
a complete PC management control system. For more information on other product
Although we produce the DMMetering PRO-75 series meter according to IEC
62053-21 and our quality inspection is very accurate there might always be a
possibility that your product shows a fault or failure for which we do apologize.
Under normal conditions your product should give you years of benefit and pleasure.
In case there is a problem with the energy meter you should contact your dealer
immediately. All energy meters are sealed with a special seal. Once this seal is
broken there is no possibility to claim for warranty. Therefore NEVER open an
energy meter or break the seal of the energy meter. The warranty time is 5years,
after production date, and only valid for construction faults.
®2007
1.3 Performance criteria:
Operating humidity = 75%
Storage humidity = 95%
Operating temperature -10°C -+50°C
Storage temperature -30°C -+70°C
International standard IEC 62053-21
Accuracy class 1
Protection against penetration
of dust and water IP51
Insulating encased meter of
protective class ?
1.4 Specifications:
Meter type PRO-75A(register display)
PRO-75D(LCD display)
Nominal voltage (Un) 230V AC
Operational voltage 161 -300V AC
Insulation capabilities:
-AC voltage withstand 2KV for 1 minute
-Impulse voltage withstand 6KV –1.2µS waveform
Basic current (Ib) 10A
Maximum rated current (Imax) 100A
Operational current range 0.4% Ib-Imax
Over current withstand 30Imax for 0.01s
Operational frequency range 50Hz ±10%
Internal power consumption =2W / 10VA
Test output flash rate (Red LED) 1600imp/kWh
Pulse output rate (pins 5& 6) 1600imp/kWh
reverse indicator (Green LED) Current reverse
Consumption indicator (Red LED) Flashing at load running
1.5 Basic errors:
0.05Ib Cosf = 1 ±1.5%
0.1Ib Cosf = 0.5L ±1.5%
Cosf = 0.8C ±1.5%
0.1Ib -Imax Cosf = 1 ±1.0%
0.2Ib -Imax Cosf = 0.5L ±1.0%
Cosf = 0.8C ±1.0%
1.6Description
AFront panel
BCover
CBase
DSecurity hasp
®2007
Material
Front panel PC inflammable retarding
Cover ABS inflammable retarding
Base ABS inflammable retarding
1.7Dimensions
Height 130 mm
Width 76 mm
Depth 65 mm
Max diameter cable 11.5 mm
Weight 0.2 Kg (net)
1.8Installation
CAUTION
?Turn off and lock out all power supplying the energy meter and the
equipment to which it is installed before working on it.
?Always use a properly rated voltage sensing device to confirm that the
power is down.
A
B
C
D
®2007
-We recommend that the connecting wire which is used to connect the meter to
the outside circuit should be sized according to localcodes and regulations for
the ampacity of the circuit breaker or over current device used in the circuit.
-Anexternal switch or a circuit-breaker should be installed on the inlet wire,
which will be used as a disconnection device for the meter. And there it is
recommendedthat the switch or circuit-breaker is near the meter so that it is
more convenience for the operator. The switch or circuit-breaker should comply
with the specifications of the building electrical design and all local regulations.
-Anexternal fuse or thermal cut-off which will be used as a over-current
protection device for the meter must be installed on the supply side wire, and it
is recommended that the over-current protection device is near the meter so
that it is more convenience for the operator. The over-current protection device
should comply with the specifications of the buildingselectrical design and all
local regulations.
-This meter can be installed indoor directly, or in a meter box which is waterproof
outdoor, subject to local codes and regulations.
-To prevent tampering, secure the meter with a padlock or a similar device.
-The meter has to be installed against a wall which is fire resistant.
-The meter has to be installed in a good ventilated and dry place.
-The meter has to be installed in a protection box when placed in dangerous or
dusty environment.
-The meter can be installed and used after being tested and sealed with a letter
press printing.
-The meter can be installed on a 35mm DIN rail or direct on a meter board with
screws.
-The meter should be installed in anavailable height so that it is easy to read.
-When the meter is installed in an area with frequent surges due to e.q.
thunderstorms, welding machines, inverters etc, protect the meter with Surge
Protection Devices.
-After finishing installation, the meter must be sealed to prevent tampering.
-Connection of the wires should be done in accordance with the underneath
connection diagram.
WARNING
?Installation should be performed by qualified personnel familiar with
applicable codes and regulations.
?Use isolated toolsto install the meter.
?Fuse or thermal cut-off or single-pole circuit breaker can’t be fitted on the
supply line and not the neutral line.
?Don’t put your finger into the hole, because there is a screw inside.
?Please choose the available adapter which is supplied with the meterto suit
the diameter of the cable.
®2007
1/2 Phase line IN/OUT
3/4 Neutralline IN/OUT
5and 6Test pulse output contact
1.9 Operating
Consumption indication
There is a red LED which is used as indicating power consumption in the front panel of
PRO-75 series.When consumption happens, the LED will flash. The more quickly LED
flashes,the more consumption there is.
Reverse indication
Ared LED will illuminate to indicate the meter is connected in reverse way.
Reading the meter
The PRO-75A series energy meter is equipped with a 5+1 register. Five integers are
marked with black color and one decimal is marked with red. The PRO-75D series
energy meter is equipped with 5+2 LCD display which is used as recording
consumption and can’t be reset to zero. The reading accuracy is 1/100 kWh.
Pulse output
The PRO-75 SERIES DIN rail energy meter is equipped with a pulse output which is fully
separated from the inside circuit. That generates pulses in proportion to the measured
energy for accuracy testing. The pulse output is a polarity dependant, passive
transistor output requiring an external voltage source for correct operation. For this
external voltage source, the voltage (Ui)should be 5-27V DC, and the maximum input
current (Imax) is 27mA DC. To connect the impulse output, connect 5-27V DC to
connector 6(anode), and the signal wire (S) to connector 5(cathode).
1.10 Troubleshooting
CAUTION
?During reparation and maintenance, do not touch the meter connecting
clamps directly with your bare hands, with metal, blank wire or other
material as you will have the chance of an electricity shock and a possible
chance for health damage.
?Turn off and lock out all power supplying the energy meter and the
equipment to which it is installed before opening the protection cover to
prevent the hazard of an electric shock.
WARNING
?Maintenance or reparations should be performed by qualified personnel
familiar with applicable codes and regulations.
?Use insulated toolsto maintain or repair the meter.
?Make sure the protection cover is in place after maintenance or repair.
®2007
Continue.
Problem Check Solution
No light for the
Power supply
indicator (Green
LED).
Is AC power supply
connected to the
meter ?
Is the L1 and L2/N
connecting correct ?
Maybe there is a
fault in the inside
circuit.
Check switch or circuit-breaker
and fuse or thermal cut-off.
Re-install terminal screws on the
L1 and L2/N. Make sure all screws
are fixed. Than there should be a
230V 50Hz AC voltage between
the terminal screws on the L1 and
L2/N when power supply is input.
Please contact with technical
supporter to replace this meter.
®2007
Problem Check Solution
No light for the
consumption
indicator (RED
LED).
Is the load
running ?
Is the operating
power too low ?
Maybe there is a
fault in the inside
circuit.
Only when load is running, this
LED will flash.
If the operating power is too low,
the spacing interval of the flashes
will take some more time. This is
why it seems that LED is not
burning
Please contact your technical
supporter to replace this meter.
The register can’t
run. Is there a power
supply inside the
meter ?
Is the operating
power too low ?
Maybe there is a
fault in the inside
circuit.
Check that the power supply
indicator (RED LED) is burning.
If the operating power is too low,
the spacing interval of the pulses
will take some more time. This is
why it seems like the meter won’t
count
Please contact your technical
supporter to replace this meter.
No pulse output. Is DC power supply
connected to the
meter ?
Is the connecting
correct ?
Maybe there is a
fault in the inside
circuit.
Check the external voltage source
(Ui) is 5-27V DC.
Check correct connecting:
Connect 5-27V DC to connector 3
(anode), and the signal wire (S)
to connector 2 (cathode).
Please contact your technical
supporter to replace this meter.
Pulse output rate
wrong. Maybe there is a
fault in the inside
circuit.
Please connect with technical
supporter to replace this meter.
®2007
1.11Technical support
For questions about one of our products,please contact:
-DMMetering dealer in your in your region
-Your local DMMetering distributor
-Email: [email protected]
www.dmmetering.com
Inepro Industries Ltd.
Room 2303, Office Tower
1 Harbour Road, Wan Chai
Hong Kong
Fax: +852 2911 1200
www.inepro.com.hk
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