EJ Newton Series Portable Balances
The EJ Newton Series delivers affordable precision for laboratory and industrial weighing applications. These portable balances provide milligram measurement capability with standard functions typically found in balances costing twice as much. Backed by A&D's industry-leading 5 year warranty, thousands of EJ Series balances are in use worldwide across industrial facilities, production environments, and educational laboratories.
Operating the EJ Series
The EJ-303 and EJ-123 milligram models simplify precision weighing with a straightforward setup process:
- Plug-in and warm-up the balance
- Level the balance by adjusting the feet
- Start weighing
Applications
- Industrial
- Pharmacy
- Education
Standard Features and Functions
- Gravity correction
- Accumulation M+ Function
- GLP/GMP/GCP/ISO Compliant
- Auto Counting Accuracy Improvement ACAI
- Adjustable response characteristics
- Display Hold
- Battery Operation
- Piece Counting
- Percent Weighing
- External Calibration
- Density (specific gravity) functions
Display and Controls
Clear LCD display features 16 mm high characters with backlight for easy reading. STABLE, NET, and ZERO indicators provide weighing status at a glance. The balance updates the display 10 times per second and includes a level bubble for proper setup. Controls include PRINT key, SAMPLE key for easy parts counting, RE-ZERO key, ON:OFF key with auto power-off function, and UNITS key for accessing 7 units-of-measure.
Construction Details
Models feature 4 leveling feet for stability and include calibration switch cover on bottom. The 110 mm round pan is standard for EJ-610 and below; 127 x 140 mm stainless steel weighing pan is provided for EJ-1200 to EJ-6100. AC adapter jack accepts included AC adapter. Security slot and battery cover for 4 x AA batteries are provided. Draft shield (breeze break) with anti-static coating is standard with EJ-123 and EJ-303.
Available Models
| Model |
Capacity |
Readability |
| EJ-123 |
120 g |
0.001 g |
| EJ-303 |
310 g |
0.001 g |
| EJ-120 |
120 g |
0.01 g |
| EJ-200 |
210 g |
0.01 g |
| EJ-300 |
310 g |
0.01 g |
| EJ-410 |
410 g |
0.01 g |
| EJ-610 |
610 g |
0.01 g |
| EJ-1202 |
1200 g |
0.01 g |
| EJ-3002 |
3100 g |
0.01 g |
| EJ-1500 |
1500 g |
0.1 g |
| EJ-2000 |
2100 g |
0.1 g |
| EJ-3000 |
3100 g |
0.1 g |
| EJ-4100 |
4100 g |
0.1 g |
| EJ-6100 |
6100 g |
0.1 g |
Technical Specifications
| Parameter |
EJ-123 |
EJ-303 |
EJ-120 to EJ-1202/3002 |
EJ-1500 to EJ-6100 |
| Repeatability (Std. deviation) |
0.003 g |
0.003 g |
0.01 g to 0.03 g |
0.1 g |
| Linearity |
±0.003 g |
±0.003 g |
±0.01 g to ±0.03 g |
±0.1 g to ±0.2 g |
| Sensitivity drift |
±20 ppm / °C (10°C-30°C / 50°F-86°F) |
| No. of samples |
5, 10, 25, 50 or 100 pieces |
| Min. unit weight |
0.001 g |
0.001 g |
0.01 g |
0.1 g |
| Min. % display |
0.01% |
0.01% |
0.01% |
0.1% |
| Min. 100% weight |
0.1 g |
0.1 g |
1 g |
10 g |
| Display |
7 segment LCD display with backlight (Character height 16 mm) |
| Display update |
10 times per second |
| Operating temp. |
-10°C-30°C, less than 85% R.H. (non-condensing) |
| Power supply |
AC adapter (included) or 4 x "AA" size dry-cell batteries (Approximately 70 hours backlight off, alkaline batteries) |
| Compliance |
GLP / GMP / GCP / ISO |
| Weighing pan size |
110 mm Ø |
110 mm Ø |
110 mm Ø / 127 mm x 140 mm |
127 mm x 140 mm |
| Weight |
Approx. 1160 g |
Approx. 1160 g |
Approx. 850 g / 1490 g |
Approx. 1100 g |
Calibration Weights (Factory Setting)
| Model |
EJ-123 |
EJ-303 |
EJ-120 |
EJ-200 |
EJ-300 |
EJ-410 |
EJ-610 |
EJ-1202 |
EJ-3002 |
EJ-1500 |
EJ-2000 |
EJ-3000 |
EJ-4100 |
EJ-6100 |
| Weight |
100 g |
300 g |
100 g |
200 g |
300 g |
400 g |
600 g |
1000 g |
3000 g |
1500 g |
2000 g |
3000 g |
4000 g |
6000 g |
Optional Accessories
| Part Number |
Description |
| EJ-02C |
USB interface with cable |
| EJ-03 |
RS-232C interface |
| EJ-07 |
Underhook for EJ-3000 to EJ-6100 (except for EJ-3002) |
| EJ-08 |
Underhook for EJ-1500, EJ-2000 |
| EJ-11 |
Breeze break (Draft Shield) |
| EJ-12 |
Carrying case (except for EJ-123/EJ-303, EJ-1202/3002) |
| EJ-13 |
Density determination kit for EJ-120/EJ-200/EJ-300/EJ-410/EJ-610 |
| TB:662 |
AC adapter 120V/220V (Replacement) |
| TB:164 |
AC adapter 240V (Round prongs) |
| AD-8127 |
Compact printer |
| AX-KO2466-220 |
Cable |
| AX-USB-9P |
Serial to USB Adapter |
Units of Measure
N, g, oz, lb (select models), ozt (troy ounce), ct, dwt, GN
