Semi-Micro Balances
Explorer®
Semi-Micro Balances
Built for Sophisticated, Professional Weighing.
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.
Standard Features Include:
• Intelligent Performance for Applications Requiring Extreme Accuracy—The semi-micro
Explorer series, which includes models with capacities up to 220 g and resolutions up to
0.01 mg, has been designed to use a High Speed Single Module weighing cell to ensure
the accuracy of results. To minimize weighing errors and ensure accurate measurements,
AutoCal™ utilizes two internal weights to perform a linear calibration.
• Intuitive Software Provides an Extremely Modern User Experience—Powered by
SmarText™ 2.0 software, Explorer operates in the same manner as common electronics, with
an icon-based touchscreen display, advanced applications, memory library, a USB host port,
and more.
• Ingenious Construction Designed to Enhance Usability—Among Explorer’s features
designed to improve user experience and ensure the integrity of results include
touchless sensors, automatic draftshield doors, an ionizer, and more.
Explorer® Semi-Micro Balances
Intelligent Performance for Applications Requiring
Extreme Accuracy
Balances with capacities ranging from 52 g – 220 g and readabilities from
0.01 mg – 0.1 mg make up the Explorer series of semi-micro balances. In
addition to superior craftsmanship and a High Speed Single Module weighing
cell, various features are incorporated in to the product’s design to enhance
performance.
Internal Calibration
OHAUS’ signature AutoCal™ internal calibration system provides routine
maintenance by automatically calibrating the balance every time it senses
a temperature change of 1.5°C or every 3 hours, whichever occurs first.
This helps ensure the accuracy of the balance when the operator has not
performed a manual calibration or when the proper calibration masses are
unavailable. In addition, to minimize weighing errors and ensure accurate
measurements, AutoCal™ utilizes two internal weights to perform a linear
calibration.
Efficiency
Explorer’s ultra-fast stabilization time (0.1 mg: ≤3 second, 0.01 mg: ≤8 second)
and audible stability alert increases laboratory efficiency.
Intuitive Software Provides an Extremely Modern
User Experience
Explorer semi-micro balances include many facets of modern technology to
provide the best weighing experience possible. The icon-based navigation
provides tactile feedback and operates in the same manner as a smart phone
or tablet computer.
Save to USB
A USB host port provides the capability of using a USB extension cable to
directly transfer the data to a flash drive.
Memory
The balance’s memory capabilities includes a library with space for up to 99
items, and a 10 recipe library for formulation mode.
Multi-User
The user manager function provides profiles for one administrator and five
additional users, allowing multiple users to utilize the same balance without
compromising past results recorded on the balance.
Technology
• Other technologically-advanced features include:
• Below minimum sample weight indicator
• Real time clock for GLP/GMP data collection
• Audible stability alert
• True type printing for SQC and pipette adjustment.
Ingenious Construction
Designed to Enhance Usability
The sleek Explorer semi-micro balance has been designed and constructed to
provide a modern weighing experience as well as to bolster accuracy.
Operator Experience
Among the features that enhance the operator experience are:
• Color touchscreen display
• Four programmable touchless sensors allow the operator to perform
common functions and commands with a swipe of the hand
• Modular design in which the base and display can be separated to allow
the balance to fit ideally on the lab bench.
Auto-Doors
The automatic door feature, available on certain models, allows access to the
weighing chamber without the need to touch the draftshield door. Placement
of samples is achieved in one swift motion, eliminating the repetition of
picking up and putting down samples due to a lack of free hands.
The automatic doors are also more than a user-friendly feature; they minimize
vibrations caused by manual operation that can affect weighing results.
Ionizer
The built-in ionizer, included in Explorer automatic door models, generates
bipolar ions continuously from positive and negative discharge electrodes
and directs the ionized air onto the charged body to eliminate static
electricity. These charges can build up in the weighing chamber and alter
weighing results by as much as several milligrams.
Outline Dimensions
6.6 in.
168 mm
9.5 in.
240 mm
13.8 in.
350 mm
5.1 in.
130 mm
9.1 in.
230 mm
15.5 in.
393 mm
Explorer® Semi-Micro Balances
MODEL
Capacity
Readability (d)
EX125D
EX125
52 g / 120 g
120 g
0.01 mg /
0.1 mg
0.01 mg
Approved Readability
(e)
EX225D
EX225D/AD EX225/AD
120 g/220g 120 g / 220 g
0.01 mg /
0.1 mg
0.01 mg /
0.1 mg
52 g / 120 g
0.01 mg
0.01 mg /
0.1 mg
Weighing Units
Applications
0.01 mg /
0.1 mg
220 g
0.01 mg
0.015 mg
0.1 mg
0.02 mg
50 g
100 g
50 g
100 g
0.02 mg / 0.1 mg
0.03 mg
0.1 mg
0.02 mg
0.02 mg / 0. 1mg
0.03 mg
±0.1mg
100 g
150 g
200 g
Calibration
Automatic Door
0.01 mg /
0.1 mg
1 mg
Linearity
Span Calibration
Points
120 g 120 g / 220 g 120 g / 220 g
0.01 mg
Non-approved model
Repeatability (20 g)
(std. dev.)
Repeatability (100 g)
(std. dev.)
EX125DM EX125M EX225DM EX225DM/AD EX225M/AD
220 g
100 g
150 g
200 g
100 g
150 g
200 g
50 g
100 g
50 g
100 g
100 g
150 g
200 g
100 g
150 g
200 g
100 g
150 g
200 g
Standard AutoCal™, AutoCal on Δ1.5° temperature change, 3 hours
n/a
Standard*
n/a
g, 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
Standard*
g, mg, ct
Weighing, Parts Counting, Percent Weighing, Checkweighing, Dynamic Weighing, Filling, Totalization, Formulation,
Differential Weighing, Peak Hold, Density Determination, Pipette Adjustment, Statistical Quality Control
Stabilization Time
0.1 mg: ≤3 second, 0.01 mg: ≤8 second
Sensitivity Temp. Drift
0.50 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**
Display
14.5 cm (diagonal) Full-Color touch screen
Interface
Standard connectivity: 1 USB host, 1 USB device, 1 RS232
Optional connectivity: 2nd RS232, Ethernet
Working Environment
10°C – 30°C, 85% RH, non-condensing
Storage Conditions
-10°C – 60°C at 10% to 90% RH, non-condensing
Power Supply
AC Adapter Input: 100 – 240 VAC 0.6 A 50/60 Hz, AC Adapter Output: 12 VDC 1.5 A
Pan Size
Ø 80 mm
Dimensions
(W × H × D)
230 × 393 × 350 mm
Shipping Dimensions
(W × H × D)
632 × 640 × 467 mm
Net Weight
7 kg
7.5 kg
7 kg
7.5 kg
Shipping Weight
12 kg
12.6 kg
12 kg
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)
Approvals
• 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)
OHAUS CORPORATION
*7 Campus Drive
Suite 310
Parsippany, NJ 07054 USA
Accessories
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80253384
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12120798
00410024
83021085
83021081
83021082
83021083
80251396
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83033633
30093334
www.ohaus.com
80774835 © Copyright OHAUS Corporation
ION-100A - Ionizer. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Density Determination Kit. . . . . . . . . . . . . . . . . . . . .
Sinker glass for Density Determination kit. . . . .
Full-featured Impact Printer SF40A. . . . . . . . . . . .
SF40A Paper roll (57,5mm 2pcs). . . . . . . . . . . . . . .
SF40A Ink ribbon cassette. . . . . . . . . . . . . . . . . . . . .
RS232 cable, PC 9 Pin. . . . . . . . . . . . . . . . . . . . . . . . . .
USB cable (type A to B). . . . . . . . . . . . . . . . . . . . . . . .
Second RS232 interface . . . . . . . . . . . . . . . . . . . . . . .
Ethernet interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Terminal extension cable (3m). . . . . . . . . . . . . . . . .
Secondary display PAD7. . . . . . . . . . . . . . . . . . . . . . .
Security device (Cable & lock) . . . . . . . . . . . . . . . . .
Security device (Laptop lock). . . . . . . . . . . . . . . . . .
Terminal in-use cover. . . . . . . . . . . . . . . . . . . . . . . . . .
Dust cover. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
With offices throughout
Europe, Asia, and
Latin America
*ISO 9001:2008
Registered Quality
Management System
30061697
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