Global Specialties 1523 User Manual

1523

Digital Wattmeter

Instruction Manual

GLOBAL SPECIALTIES

INSTRUMENTS

1523

2.6KW Autoscan True RMS
Power Meter

INSTRUCTION MANUAL

TABEL OF CONTENTS

2 TECHNICAL SPECIFICATIONS 2

6 TESTING & CALIBRATION PROCEDURE 8

7 PART LIST 11

8 CIRCUIT DIAGRAMS & SCHEMATICS 16

.ON EGAP NOITPIRCSED NOITCES

1 SNOITCURTSNI YTEFAS 1

3 NOITPIRCSED LARENEG 3

4 NOITCURTSNI GNITAREPO 4

6 NOITACINUMMOC ETOMER 5

SECTION - 1

SAFETY INSTRUCTIONS

The general safety information in this part of the summary is for both operating and servicing personnel.
Specific warnings and cautions will be found throughout the manual where they apply, but may not
appear in this summary.

1. This indicates refer to the manual wherever necessary.

2. E / Indicates Protective Ground Terminal.

3. Indicates Danger ! High Voltage.

4. Danger Arising fr om Loss of Ground

Upon loss of the protective-ground connection, all accessible conductive parts (including knobs and

controls that may appear to be insulating) can render an electric shock.

5. Use the Proper Fuse

To avoid fire hazard, use only the fuse of correct type, voltage rating and current rating as specific

in the parts list for your product. Refer fuse replacement to qualified service personnel.

6. Grounding the Product

This product is grounded through the grounding conductor of the power cord. To avoid electrical

shock, plug the power cord into a properly wired receptacle before connecting to the product input
or output terminals. A protective ground connection by way of the gr ounding conduct or in the
power cord is essential for safe operation.

SECTION - 2

TECHNICAL SPECIFICATIONS

2.1 Measuring Parameters : True RMS V, A, VA, W and Frequency.

2.2 Measuring Limits

a) Voltage : 75V to 130V (115V operation).
b) Current : 0.2 to 20A rms AC (40A peak).
c) Volt Amperes : 16 to 2600VA.
d) Power : 1 to 2600W.
e) Power Factor : 0.5 to unity (No display).
f) Frequency : 45 to 65Hz.

2.3 Measurement Accuracy
a) Voltage / Current : 0.5% of reading ±1 digit.
b) Volt Amperes/Power: 1% of reading ±2 digits.
c) Power Factor : 2% of reading ±2 digits.
d) Frequency : 0.25% of reading ±1 digit.

Note : i) Accuracy valid only between above specified measurement limits.
ii) For VA, Power accuracies are valid only when voltage and current are between

2.4 Measurement Resolution

a) Voltage : 0.1V.
b) Current : 1mA upto 1 Amp., 10 mA above 1Amp.
c) Volt Amperes : 1VA.
d) Power : 1 Watt.
e) Frequency : 0.01Hz.

2.5 Miscellaneous
a) Display : 16x2 Alphanumeric LCD display.
e) Interface : RS232.

2.6 Power : 75V to 130V (115V operation).

2.7 Instrument Power : 9W approx.
Consumption

2.8 Operating Temperature : 5°C to 50°C, 90% RH.

2.9 Dimensions (mm) : 155 (W) x 190 (H) x 286 (D) approx.

2.10 Weight : 3 Kg. approx.

their respective limits.

SECTION - 3

GENERAL DESCRIPTION

3.1 INTRODUCTION

Global Specialities' 2.6KW AUTOSCAN TRUE RMS POWER METER, MODEL 1523 is a state-of-

the-art instrument, ideal for providing all the information about any electrical load connected to the
AC Mains. It m onito rs/sca ns se que nt ially all electrical parameters viz., Voltage, Current, Power,
VA, & Mains Frequency, thus providing a clear picture of the load.

User operation is very simple. The load which is to be monitored is connected to the ‘Output’

Socket provided on the rear panel of the 1523 instrument. Each output is rated upto 130V & 10A
rms current. The instrument is then connected to the 115V AC mains. All the parameters are then
displayed on the LCD on front panel of the instrument.

An optional facility of remote communication has been provided. Through this, an external PC can

control the instrument and obtain information from it. This is possible b y making use of a set of
commands, details of which are explained later.

3.2 RECEIVING INSTRUCTIONS

The instrument is packed in a corrugated box. For unpacking, remove the box cover & packing

material. Then bring out the instrument from the box.

Check carefully, whether there is any physical damage to the instrument during transit. Inform the

carrier about the damage alongwith the serial number of the instrument (located on the bottom
cover).

3.3 POWER REQUIREMENTS

The wiring of the instrument is done as per the marking on the rear panel, viz ‘Mains In’ 105V -

130V AC, 50/60Hz.

3.4 INSTALLATION

The instrument is ready for operation when shipped from the factory. The appliance/load whose

power is to be monitored should be at a safe distance from the instrument. This prevents
unnecessary heating up of the instrument.