DPM8120A-2 ANDERS ELECTRONICS, DPM8120A-2 Datasheet

DPM8120A-2

Manufacturer Part Number

DPM8120A-2

Description

DPM, LED, DIN, AC VOLTMETER

Manufacturer

ANDERS ELECTRONICS

Datasheet

1.DPM8100A-2.pdf (2 pages)

Specifications of DPM8120A-2

Supply Voltage Range

184VAC To 253VAC

No. Of Digits / Alpha

3.1/2

Panel Cutout Height

45mm

Panel Cutout Width

92mm

Operating Temperature Range

0Â°C To +50Â°C

Display Technology

LED

External

RoHS Compliant

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DPM 8000 Series-2 Voltmeters and Ammeters

Models covered by this instruction sheet

The DPM8100-2 and DPM8400-2 series can be ranged as voltmeters or

ammeters by fitting multiplier or shunt resistors (not include into the

labelled positions on the main printed circuit board as shown on the

diagram overleaf. Wire links"JP1" may need to be removed for some

voltmeter ranges.

Using close tolerance resistors, the minimum of recalibration is required.

For accurate setting a calibrated supply should be used. The resistors

fitted should be adequately rated for the current or voltage range.

For non standard ranging and calibration, application sheet No. AES040

is available on request.

Over range is indicated by -1 on the display for 3.5 digit meters and by

flashing zero's on the 4.5 digit meters.

digital panel modules

DPM8100-2

DPM8100A-2

DPM8120-2

DPM8120A-2

DPM8140-2

DPM8400-2

DPM8400A-2

DPM8420-2

DPM8420A-2

STEP BY STEP INSTRUCTIONS

Remove instrument from its protective plastic bag and clip off

front cover.

Pull off the three green safety terminals from the rear of the

meter. The complete panel meter assembly can now be

removed from its case by carefully levering the base of the

LED display board over the plastic retaining lug while pushing

gently on the terminal pins at the rear.

With reference to the Range Specification table and notes

overleaf, determine the resistance values to be fitted for the

required voltage or current range. Further note whether link

"JP1" should be removed.

Carefully de-solder and remove link JP1 if necessary and

solder the required resistors in place as shown on the main

circuit board diagram.

The decimal point should be set as required by either

repositioning the PCB jumper link JP2 on the 3.5 digit models

or setting a dip switch on the front of the 4.5 digit model, in

one of these locations:-

DP1 gives 1.999

DP2 gives 19.99

DP3 gives 199.9

DP4 gives 1999.9 i.e XXX. X on 4.5 digit version only.

Slide panel meter back into its case along the guide rails

taking care to ease bottom of LED display board over

protruding lug. Then push the green safety terminals securely

back into place on the rear of the meter.

Make electrical connection to the meter with reference to the

Terminal Definition table. Note Mains Earth must NOT be

connected to pin 4. There is no earth connection required

with this meter. Note also that Pin 3 is unused.

The instrument may now be tested.

For improved accuracy it can be adjusted by turning the

"span adj" potentiometer whilst applying full scale signal from

a calibrated source until exactly full scale is shown on the

display. On the DPM8140 and DPM8400 only, first set the

display to read zero for 0V input using the "offset"

potentiometer on the front left hand side of the board.

Finally, clip the cover back on and insert the meter into the

panel cut-out. "Snap" the mounting clips into the side of the

case (refer to installation diagram) and tighten the fixing

screws until secure in the panel - do not over tighten!

3.5 DIGIT 200mV DC

3.5 DIGIT 2V DC

3.5 DIGIT 200mV AC

3.5 DIGIT 2V AC

3.5 DIGIT 200mV True RMS AC

4.5 DIGIT 200mV DC

4.5 DIGIT 2V DC

4.5 DIGIT 200mV AC

4.5 DIGIT 2V AC

i.e.

i.e

. XXX

X. XX

XX. X

user guide

Accuracy:

Line voltage:

Temperature:

Humidity:

Power:

Sampling rate:

DIMENSIONS

TERMINAL DEFINITIONS

INSTALLATION DIAGRAM

OPERATING SPECIFICATION

SYMBOL

Gnd (sig)

+5V (o/p)

(display)

HOLD

0V (N)

IN LO

230V

115V

IN HI

n/c

81xx: +/- 0.1% of rdg +/-1 digit (AC models +/- 0.2%)

84xx: +/- 0.01% of rdg +/-2 digits DC models

84xx: +/- 0.1% of rdg +/-3 digits AC models

115/ 230 volts +10, -20%,

0 - 50 degrees C

below 85% RH

4VA

2.5 / second

Apply input to pins 1 and 2. If INLO signal is

greater than INHI the display will read -ive.

Not connected (unused)

digital 0 Volts (NOT MAINS EARTH)

connect to terminal 6 (+5V) 8100 series

connect to terminal 4 (0V) 8400 series

internal +5V output (maximum 50mA)

AC mains supply

DESCRIPTION

50 - 60 Hz

DPM8000-2 Rev 3 10/03

Related parts for DPM8120A-2

DPM8120A-2 Summary of contents

Page 1

... DPM 8000 Series-2 Voltmeters and Ammeters Models covered by this instruction sheet DPM8100-2 3.5 DIGIT 200mV DC DPM8100A-2 3.5 DIGIT 2V DC DPM8120-2 3.5 DIGIT 200mV AC DPM8120A-2 3.5 DIGIT 2V AC DPM8140-2 3.5 DIGIT 200mV True RMS AC DPM8400-2 4.5 DIGIT 200mV DC DPM8400A-2 4.5 DIGIT 2V DC DPM8420-2 4 ...

Page 2

PCB LAYOUT SPAN OFFSET addition. ADJUST VR1 Converter Chip LINK JP1 R17 R18 R30 N/c 0v Hold +5V 230 Hi Lo Vac dc i/p dc Important Observe the ...

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