®
d) Connect the input voltage to be measured to
V in and GND. The input voltage should be
DC only.
3½D LCD Digital Panel Meter
1. FEATURES :
Model : LC035 l 200mV full scale input sensitivity l Single
9V DC operation l Decimal point selectable
l 13mm figure height l Automatic Polarity
indication l Guaranteed zero reading for 0 volt
input l High input impedance ( > 10 MV )
l Easy Bezel fixing Method
2. APPLICATIONS :
User Manual l Voltmeter l Thermometer l PH Meter
l DB Meter l Watt Meter l Current Meter
l Capacitance Meter l Lux Meter l LCR
4. OPERATION :
a) If needed, add proper voltage dividers (not Meter l Other industrial & domestic uses.
included) and decimal point wire jumper. 3. SPECIFICATIONS :
: 199.9mV DC
Maximum Input
Max. Voltage Proper Voltage Decimal Point : 1999 (3½ Digit) with
Maximum Display
to be measured Divider fixing method automatic polarity
200mV - Shortcircuit P1 on indication
& P2, P3 off Indication Method : LCD Display
2V Disconnect wire Shortcircuit P3 on Measuring Method : Dual-Slope Integration
A-D converter system
jumper in RB & P1, P2 off
RA = 1.1KV,
:
Overrange indication " 1 " shown in the display.
Reading rate time : 2-3 reading per second.
RB = 10MV
Input Impedance : > 10MV
20V Disconnect wire Shortcircuit P2 on : ± 0.5% of full scale
Accuracy
jumper in RB & P1, P3 off (230±50C < 80%RH)
RA = 100KV, : 1mA DC
Power Dissipation
RB = 9.9MV : Selectable with wire jumper
Decimal Points
200V Disconnect wire Shortcircuit P2 on Supply Voltage : 7-11V DC
jumper in RB & P1, P3 off Size : 68mm x 44mm
RA = 10KV,
RB = 9.99MV
500V Disconnect wire
jumper in RB
RA = 1KV,
RB = 9.999MV
Shortcircuit N on to enable polarity sign function
or shortcircuit N off to disable polarity sign function
RA and RB are ½ W 0.5% Metal film resistors.
b) Connect 7-11V DC power supply to panel
meter. Pay attention to the proper polarity.
Test Result : S.No. .............................................
c) For range other than 200mV, input accurately
½ x Max. Voltage generated by calibrator Input
( e.g. 100.0V for 200.0V range) and carefully ...............
adjust the semi-fixed resistor R4 to have Result OK OK OK OK OK
same reading in L.C.D.
Checked by : ..................... Date : .....................
www.mecoinst.com
LC035 : 28-09-2012
®
1. FEATURES :
l 200mV full scale input sensitivity l Single
5V DC operation l Decimal point selectable
3½D LED Digital Panel Meter l 14.2mm figure height l Automatic Polarity
Model : LC135 indication l Guaranteed zero reading for 0 volt
input l High input impedance ( > 10 MV )
l Easy Bezel fixing Method
2. SPECIFICATIONS :
Maximum Input : 199.9mV DC
Maximum Display : 1999 (3½ Digit) with
automatic polarity
User Manual indication
b) Connect 5DC power supply to panel meter. Indication Method : LED Display
Pay attention to the proper polarity. Measuring Method : Dual-Slope A-D
conversion
c) For range other than 200mV, input accurately
Overrange indication : " 1 " or " -1 " shown in
½ x Max. Voltage to be measured, ( e. g.
the display.
100.0V for 200.0V range by calibrator ) and
Reading rate time : 2-3 reading per second.
carefully adjust the pot R2 to have some
Input Impedance : > 10MV
reading in LED display.
Accuracy : ± 0.5% of full scale
d) Connect the input voltage to be measured to (230±50C < 80%RH)
V in (+) and V in (-). The input voltage should Power Dissipation : <1W
be DC only. Decimal Points : Selectable with wire
jumper
Supply Voltage : 5V DC
INPUT Size : 68mm x 44mm
SIGNAL
3. OPERATION :
a) If needed, add proper voltage dividers
POWER
(not included)
SUPPLY
5V DC
Max. Voltage Proper Voltage
to be measured Divider
S
Shorting S will display the 200mV -
corresponding decimal point
2V Disconnect wire jumper in RA
RA = 1.1MV, RB = 9.9MV
20V Disconnect wire jumper in RA
Test Result : S.No. ............................................. RA = 100KV, RB = 9.99MV
Input 200V Disconnect wire jumper in RA
............... RA = 10KV, RB = 9.99MV
Result OK OK OK OK OK
500V Disconnect wire jumper in RA
Checked by : ..................... Date : ..................... RA = 1KV, RB = 9.999MV
Note :
Please ensure that when shunt is use, it must RA and RB are ½W 0.5% Metal Film Resistors.
be connected on the ground / common side of
the load and not on the supply side.
www.mecoinst.com
LC135 : 28-09-2012
