Zamel exta LEM-40 User Manual

ELECTRICITY METER LEM-40
DIGITAL - THREE-PHASE
DESCRIPTION
The LEM-40 digital, three-phase electricity
meter is a precision device measuring the pow-
er consumption in a three-phase system. The
meter operates in class B (equivalent to class
1). The device is equipped with a legible LCD
and signaling diodes informing about the pres-
ence of voltage of a given phase. ZAMEL LEM-
40 meter is used to monitor power consumption
of three-phase system in consumer, commer-
cial and industrial applications. The product is
ideal solution for billing the power consumption
in garages, workshops, plots of land, tenants of
facilities or for machinery control. The device
measures and displays electricity expressed in
kWh rounded to 2 decimal places (0.01kWh).
W results are presented on a 6+2 digital display.
Pulse output of the meter allows connecting
metering device and presenting the measure-
ment results on the additional display/system.
The meter can be easily installed in electric
cabinets because it has compact 4-module de-
sign (4 DIN modules). The device is equipped
with safety flaps, which can be sealed.
FEATURES
● Three-phase digital energy meter,
● Class B (equivalent to class 1),
● Maximum current of the meter: 100A,
● 6+2 LCD display,
● Additional pulse output,
● Indication for pulse counting,
● Signalling the presence of voltage of each
phase,
● Sealable terminal covers,
● Installation on TH 35 rail.
The device should be connected
to a three-phase network in ac-
cordance with legally binding
standards. The connection meth-
od is described in this manual.
NOTE
Any activities related to instal-
lation, connection, and adjustment should be
performed by qualified electricians who have
read this user's manual and familiarised them-
selves with device functions. Removing the
enclosure voids the warranty and poses a risk
of electric shock. Before installation, make sure
that there is no voltage on connection cables.
To install the device, use a cross-head screw-
driver with a diameter of 3.5 mm. The proper
operation of the device is affected by how the
device is transported, stored, and used. It is not
advisable to install the device in the following
cases: lack of any components, damage to or
deformation of the device. If the device oper-
ates improperly, please contact the manufac-
turer.
Do not dispose of this device together with other
waste! To avoid harmful effects on the environment and
human health, the worn-out device should be stored
in designated areas. Electrical waste from households
may be handed over to the waste collector established
for this purpose free of change and in any amount, as well as to
the store when purchasing new equipment.
ZAMEL Sp. z o.o.
ul. Zielona 27, 43-200 Pszczyna, Poland
tel. +48 (32) 210 46 65, fax +48 (32) 210 80 04
www.zamel.com, e-mail: export@zamel.pl
TECHNICAL DATA
Power supply terminals:
Reference voltage: 3 x 230 V / 400 V AC
Voltage tolerance: -15 ÷ +10 %
Rated frequency: 50 / 60 Hz
Base current (Ib): 3 x 10 A
Maximum current (Imax): 100 A
Operating current range: 0,4% I
Current overload: 30x I
Meter own consumption: 10 VA / 2 W
Accuracy of measurement (IEC61036): class B (class 1)
Indication for pulse counting: red LED
Pulse output SO+ SO-: OC type, terminals: 22 (-), 23 (+)
Connection voltage SO+ SO-: 5 ÷ 27 V DC
SO+ SO- connection current: < 27 mA
SO+ SO- contant: 1000 pulses per kWh
Pulse time SO+ SO-: 30 ms
Number of connection terminals: 10
Cross-section of connection cables:
Operating temperature: -25 ÷ +55
Enclosure mounting: TH 35 rail (according to EN 60715)
Enclosure IP rating: IP51
Overvoltage category: II
Contamination degree: 2
Dimensions: 72 x 100 x 66 mm
APPEARANCE
LCD display
top - inputs (IN): L1, L2, L3, N
bottom - outputs (OUT): L1, L2, L3, N
÷ I
b max
for 0,01 s
max
Display: Counter 6+2 digits
main connection: 4 ÷ 25 mm
pulse output: minimum 0.2 mm
C
o
Weight: 0,700 kg
USER'S MANUAL
2
2
Input terminals
L1, L2, L3, N
Voltage
presence indication
Indication
for pulse counting
Pulse
output
Output terminals
L1, L2, L3, N
lem-40_inst_ext_gb | 10.02.21