Semi-Micro Balance for Density Determination and other high precision tasts

Semi-Micro Balances

  • Designed and constructed to provide a modern weighing experience as well as to bolster accuracy
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Model : EX125D

  • Maximum Capacity: 51 g/120 g
  • Readability: 0.01 mg;0.1 mg
  • Auto Door: Not Applicable


Model : EX125

  • Maximum Capacity: 120 g
  • Readability: 0.01 mg
  • Auto Door: Not Applicable


Model : EX225D

  • Maximum Capacity: 120 g/220 g
  • Readability: 0.01 mg;0.1 mg
  • Auto Door: Not Applicable

EX225D / AD

Model : EX225D / AD

  • Maximum Capacity: 120 g/220 g
  • Readability: 0.01 mg;0.1 mg
  • Auto Door: Included

EX225 / AD

Model : EX225 / AD

  • Maximum Capacity: 220 g
  • Readability: 0.01 mg
  • Auto Door: Included

When laboratory work and research requires accuracy to the hundred-thousandth, there is simply no room for error.

The Explorer series of semi-micro balances has been designed with the technology to ensure that your very specific weighing results are accurate. Sophisticated laboratories requiring accuracy and looking for innovative technology to obtain measurement results can find both in Explorer semi-micro balances.



Weighing, Percent Weighing, Parts Counting, Check Weighing, Dynamic/Animal Weighing, Filling, Totalization, Formulation, Differential Weighing, Density Determination, Peak Hold, Pipette Adjustment, SQC


Full-color VGA graphic display (5.7 in. diagonal),4-wire resistive touch screen. QWERTY keyboard and numeric keypad to quickly input GLP and GMP data and other application data


AC Adapter (Included)


Easy access communication ports including 2 units of USB port and RS232 and an optional fourth port of either RS232 or Ethernet. GLP/GMP Data Output with Real Time Clock. Data Transfer Function.


Metal base, ABS top housing, stainless steel pan,anti-static glass draftshield with flip-top door, replaceable in-use cover, automatic door as option models

Design Features

AutoCal fully-automatic internal calibration system, fast stabilization time, four touchless sensors, built-in ionizer with automatic door models, up to 14 operating languages, OIML models available, SAVE to USB function, menu lock switch, security bracket, integral weigh below hook for below balance weighing applications, removable stainless steel weighing platform, stability indicator, overload and underload indicators, auto standby.


  • Geared for high-performance with up to 0.01mg readability and capacities up to 220g. The AutoCal™ Internal Calibration system ensures accuracy of results in applications that require high precision.
  • Equipped with a color touchscreen display that enhances the user-experience. In addition, touchless sensors, automatic draftshield doors (on select models) and ionizer ensure the integrity of results.
  • SmarText™ 2.0 software, intuitive icon-based navigation, 99 item library, 6 user profiles and below minimum sample weight indication – all combine to provide an easy yet efficient weighing experience.



  • Metrology: OIML R76, EN 45501 (Class I, nmax 220000)
  • Product Safety: EN 61010-1, IEC 61010-1
  • Electromagnetic Compatibility: IEC 61326-1, EN61326-1 (Class B emissions, Industrial immunity)

Capacity52 g / 120 g120 g120 g/220g120 g/220 g220 g
Readability (d)0.01 mg /0.01 mg0.01 mg /0.01 mg /0.01 mg
0.1 mg0.1 mg0.1 mg
Approved Readability (e)Non-approved model
Repeatability (20 g) (std. dev.)0.015 mg
Repeatability (100 g)(std. dev.)0.1 mg0.02 mg0.02 mg / 0.1 mg0.03 mg
Span Calibration PointsStandard AutoCal, AutoCal on Δ1.5° temperature change, 3 hours
Calibration50 g50 g100 g100 g100 g
100 g100 g150 g150 g150 g
200 g200 g200 g
Automatic Doorn/aStandard*
Weighing Unitsg, mg, kg, ct ,gn, oz, ozt, lb, dwt, N, mom, tical, msg, tola,baht, Hong Kong Tael, Singapore Tael, Taiwan Tael,Custom Units 1, Custom Unit 2, Custom Unit 3
ApplicationsWeighing, Parts Counting, Percent Weighing, Checkweighing, Dynamic Weighing, Filling, Totalization, Formulation, Differential Weighing, Peak Hold, Density Determination, Pipette Adjustment, Statistical Quality Control
Stabilization Time0,1 mg : ≤3 second, 0,01 mg : ≤8 second
Sensitivity Temp. Drift0.50 ppm / °C
Min-Weight (typical)20.0 mg, fine range (USP, u=0.10%, k=2)
Min-Weight (optimal)9.0 mg, fine range (USP, u=0.10%, k=2) SRP≤0.41d**
Display5,7’’, 14.5 cm (diagonal) Full-Color touch screen
InterfaceStandard connectivity: 1 USB host, 1 USB device, 1 RS232
Optional connectivity: 2nd RS232, Ethernet
Working Environment10°C – 30°C, 85% RH, non-condensing
Storage Conditions-10°C – 60°C at 10% to 90% RH, non-condensing
Power SupplyAC Adapter Input: 100 – 240 VAC 0.6 A 50/60 Hz, AC Adapter Output: 12 VDC 1.5 A
Pan SizeØ 3.1 in /  80 mm
Dimensions9 x 15.5 x 13.8 in / 230 × 393 × 350 mm
(W . H . D)
Shipping Dimensions24.9 x 25.2 x18.4 in / 632 × 640 × 467 mm
(W . H . D)
Net Weight15.5 lb / 7 kg16.5 lb / 7.5 kg
Shipping Weight26.5 lb / 12 kg27.8 lb / 12.6 kg
*Two motorized doors operated by 4 sensors or onscreen button
**The value for SRP is the standard deviation for n replicate weighing’s (n ≥ 10)