A&D Weighing EJ-54D2, EJ-123, EJ-303, EJ-1202, EJ-3002 Data Sheet

PORTABLE
PRECISION
BALANCE

NEWTON EJ SERIES

Compact Balances

High resolution meets value

When Your Budget Is Tight but
Precision is Non-Negotiable...

Forget about those expensive electromagnetic force
restoration
employed in the EJ series now challenges their expensive
offerings. A&D enables a way to spend less without
compromising on precision... or functional convenience!

Breeze break with anti-static
coating (for the EJ-54D2*2/123/303)

Minimizes the effects of drafts and
blocks static electricity from
nearby objects to ensure stable
weighing.

*1

balances. A&D’s latest load cell technology

Stainless steel
(SUS304) pan

Resistant to
chemicals and
scratches.

Spirit level and
leveling feet

Helps to keep
the balance
level and avoid
inaccurate
weighing.

High resolution (1/120,000 - 1/310,000) load cell as the weight sensor

The EJ series achieves a readability of 0.0002 g
for a capacity of 22 g (lower capacity range of the
EJ-54D2), 0.001 g for a capacity up to 310 g (higher
capacity range of the EJ-54D2 and EJ-123/303), or

0.01 g for a capacity up to 3100 g (EJ-1202/3002).

No matter if you are a teaching lab, multi-technician
production environment, gemologist/jewelry or in a

eld research arena; the Newton EJ Series offers
high resolutions solutions at a phenomenal
value to allow you to go anywhere – weigh anything!

Security slot in
the rear

Acconomdates an
anti-theft lock.

Clearly-visible, LCD
display (16 mm
character height)
with backlight

Makes the weighing
results easy to read
even in a dimly-lit area.

*1 Method most commonly adopted for balances with resolutions of one over several hundred thousand or higher. It determines a mass from the amount of current required to generate the
electromagnetic force on one side of a lever that equalizes with the mass placed on the other side.

*2 The breeze break of the EJ-54D2 is opened by sliding its upper surface to keep air turbulence to a minimum.

Extremely High Sensitivity – EJ 54D2

The EJ-54D2, a dual range
model, has two weighing
ranges with different
capacities and readabilities,
each range extending from
zero to its capacity.

The readability of the lower
capacity (22 g) range is as

ne as 0.0002 g (or 0.001 ct),

which, for example, is ideally
suited for precisely weighing/
counting small pieces of
precious metals/jewelries*3.

EJ-54D2

Useful Options

Data communication interfaces

• Quick USB interface (EJ-02), which allows you to send
weighing data to Microsoft Excel, Word, Notepad, etc.,
without installing any drivers or other additional software
on a PC

• RS-232C interface (EJ-03) for bi-directional
communication with a PC, printer or other peripheral
devices

• BT interface (EJ-27)*4 allows for wireless communication
to PC with AD-8541-PC receiver or remote display AD­8931

*5

Density determination kit
(EJ-13)*6

The balance can automatically
calculate a density from the sample
weight in air, sample weight in water
and water temperature.

*4

EJ-13

Carat Pan

Other Features

• Adjustable response characteristics and display hold
ideal for tough weighing conditions

• Counting mode with Automatic Counting Accuracy
Improvement (ACAI)

• Percent mode to display the weight value as a percentage
of a reference mass

• Accumulation (M+) function to display the sum total of
separate weighing results

• Density Determination EJ-13

• Multiple units of measure: g, oz, lb, ozt, ct, mom, dwt,
gr, N, pcs, (counting mode) and % (percent mode), in
addition to SG (density mode)*7

• Auto power OFF function to avoid wasting power

*3 A free carat pan is provided for the EJ-54D2 and can be used instead of the standard weighing pan. The breeze break can be easily detached for changing the pan as well as for cleaning (see below).

*4 Only one interface can be installed at a time.

*5 For transferring weighing data from the balance to a PC only. Please use the RS-232C interface with the AX-USB-9P serial/USB converter for bi-directional communication or GLP output via USB.

*6 For the EJ-123/303 only

*7 Either t (tola) or tl (tael - HK general/Singapore, HK jewelry, or Taiwan) can be added upon request, and lb is not available with the EJ-54D2/123/303.

Specications

EJ-54D2 EJ-123 EJ-303 EJ-1202 EJ-3002

Capacity 22 g

Readability 0.0002 g

Repeatability (standard
deviation)

*1

*1

0.0004 g 0.001 g 0.003 g 0.03 g

Linearity ±0.0006 g ±0.001 g ±0.003 g ±0.03 g

Sensitivity drift ±20 ppm/°C (10 to 30°C/50 to 86°F)

Operating environment 10 to 30°C/50 to 86°F, 85% RH or less (no condensation)

Display type 7-segment LCD with backlight (character height: 16 mm)

Display refresh rate 10 times / second

52 g

0.001 g

*1

*1

120 g 310 g 1200 g 3100 g

0.001 g 0.01 g

Units of measure

Counting
mode

*2

Min. unit

*3

weight

No. of samples 5, 10, 25, 50 or 100 pieces

g (gram), oz (ounce), lb (pound), ozt (troy ounce), ct (metric carat), mom (momme), dwt

(pennyweight), gr (grain), N (Newton), pcs (counting mode), % (percent mode), SG (density mode)

0.0002 g 0.001 g 0.01 g

Min. % display 0.01%

Percent mode

Min. 100%
weight

0.02 g 0.1 g 1 g

Power supply AC adapter or 4 AA batteries

Battery life

Approx. 70 hours with alkaline

batteries, backlight OFF

Approx. 80 hours with alkaline batteries, backlight off

Weighing pan size Ø50 mm Ø 110 mm 127 × 140 mm

External dimensions 190 (W) × 209 (D) × 114 (H) mm

190 (W) × 211 (D) × 131 (H) mm190 (W) × 208 (D) × 82 (H)

mm

Net weight Approx. 1020 g Approx. 1160 g Approx. 1490 g

Applicable calibration weight

*1

50 g 100 g 300 g 1000 g 3000 g

Standard accessories Breeze break*4, AC adapter, Instruction manual

*1 The EJ-54D2 is a dual range model having two weighing ranges with different capacities and readabilities. Each range extends from zero to its capacity.
*2 Either t (tola) or tl (tael - HK general/Singapore, HK jewelry, or Taiwan) can be added upon request, and lb is not available with the EJ-54D2/123/303.
*3 Factory setting
*4 For the EJ-54D2/EJ-123/303 only (the breeze break of the EJ-54D2 is opened by sliding its upper surface)

Accessories

AD-8127 Compact printer

AD-8541-PC Wi USB receiver to PC

AD-8931 Wireless remote display

AX-KO2466-200 RS-232C cable (9P-9P, 2 m)

AX-USB-9P Serial/USB converter with cable

Standard Functions

1756 Automation Parkway
San Jose, CA 95131
888-726-5931 or 408-263-5333
andweighing.com

Options

*1

EJ-02

*1

EJ-03

EJ-13 Density determination kit

EJ-27-Kit

*1 Only one interface can be used at a time

*1

Quick USB interface

RS-232C inter face

Wireless communication includes EJ-27
interface and AD-8541-PC USB receiver

Optional Functions

Optimizing

Unit Weights

Wireless

Communication

©2020 A&D Weighing