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
0.1 mg – 0.01 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
5.1 in.
130 mm
13.8 in.
350 mm
9.1 in.
230 mm
15.5 in.
393 mm
Explorer® Semi-Micro Balances
MODEL EX125D EX125 EX225D EX225D/AD EX225/AD
Capacity 52 g / 120 g 120 g 120 g / 220 g 120 g / 220 g 220 g
Readability (d) 0.01 mg / 0.1 mg 0.01 mg 0.01 mg / 0.1 mg 0.01 mg / 0.1 mg 0.01 mg
Repeatability (20 g) (std. dev.) 0.015 mg
Repeatability (100 g) std. dev.) 0.1 mg 0.02 mg 0.02 mg / 0.1 mg 0.03 mg
Linearity ±0.1 mg
Span Calibration Points 50 g
100g
Calibration Standard AutoCal™, AutoCal on Δ1.5° temperature change, 3 hours
Automatic Door n/a Standard*
Weighing Units g, mg, kg, ct ,gn, oz, ozt, lb, dwt, N, mom, tical, msg, tola, baht, Hong Kong Tael, Singapore Tael, Taiwan Tael,
Applications 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 5.7 in / 14.5 cm (diagonal) Full-Color touch screen
Interface Standard connectivity: 1 USB host, 1 USB device, 1 RS232
Working Environment 10°C – 30°C / 50°F – 86°F, 85% RH, non-condensing
Storage Conditions -14°F (10°C) to 140°F (60°C) at 10% to 90% relative humidity, 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 (diameter) 3.1 in / 80 mm
Dimensions (W × H × D) 9 × 15.5 × 13.8 in / 230 × 393 × 350 mm
Shipping Dimensions (W × H × D) 24.9 × 25.2 × 18.4 in / 632 × 640 × 467 mm
Net Weight 15.4 lb / 7 kg 16.5 lb / 7.5 kg
Shipping Weight 26.5 lb / 12 kg 27.8 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)
50 g
100g
Custom Units 1, Custom Unit 2, Custom Unit 3
Optional connectivity: 2
100 g
150g
200g
nd
RS232, Ethernet
100 g
150g
200g
100 g
150g
200g
Approvals
• Product Safety: CAN/CSA C22.2 61010-1, UL 61010-1, IEC 61010-1
• Electromagnetic Compatibility: FCC Part 15 (Class A), Industry Canada ICES-001 (Class A),
IEC 61326-1, (Class B emissions, Industrial immunity)
Accessories
ION-100A - Ionizer .............................30130302
Density Determination Kit .....................80253384
Sinker glass for Density Determination kit .....83034024
Full-featured Impact Printer SF40A ............30064202
SF40A Paper roll (57,5mm 2pcs) ...............12120799
SF40A Ink ribbon cassette .....................12120798
RS232 cable, PC 9 Pin ..........................00410024
USB cable (type A to B) ........................83021085
Second RS232 interface .......................83021081
Ethernet interface .............................83021082
Terminal extension cable (3m) .................83021083
Secondary display PAD7 .......................80251396
Security device (Cable & lock) .................80850000
Security device (Laptop lock) ..................80850043
Terminal in-use cover ..........................83033633
Dust cover .....................................30093334
OHAUS CORPORATION
* 7 Campus Drive
Suite 310
Parsippany, NJ 07054 USA
Tel: 800.672.7722
973.377.9000
Fax: 973.944.7177
www.ohaus.com
With offices throughout
Europe, Asia, and
Latin America
*ISO 9001:2008
Registered Quality
Management System
80774834 © Copyright OHAUS Corporation
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