Micromeritics GEMINI VII KEYPAD User manual

OPERATOR MANUAL
239-42801-01
July 2021
(Rev E)
GEMINI®VII KEYPAD
SURFACE AREA ANALYZER

TRADEMARKS
FlowPrep is a trademark of Micromeritics Instrument Corporation.
Gemini is a registered trademark of Micromeritics Instrument Corporation.
Micromeritics is a registered trademark of Micromeritics Instrument Corporation.
Microsoft and Windows are registered trademarks of Microsoft Corporation.
Smart VacPrep is a trademark of Micromeritics Instrument Corporation.
Copyright
The software described in this manual is furnished under a license agreement and may be used or
copied only in accordance with the terms of the agreement.
____________________________________________________________________________
Copyright © 2010 - 2021. Micromeritics Instrument Corporation. All rights reserved.

WARRANTY
MICROMERITICS INSTRUMENT CORPORATION warrants for one year from the date of shipment each instrument it
manufactures to be free from defects in material and workmanship impairing its usefulness under normal use and
service conditions except as noted herein.
Our liability under this warranty is limited to repair, servicing and adjustment, free of charge at our plant, of any
instrument or defective parts when returned prepaid to us and which our examination discloses to have been defective.
The purchaser is responsible for all transportation charges involving the shipment of materials for warranty repairs.
Failure of any instrument or product due to operator error, improper installation, unauthorized repair or alteration, failure
of utilities, or environmental contamination will not constitute a warranty claim. The materials of construction used in
MICROMERITICS instruments and other products were chosen after extensive testing and experience for their
reliability and durability. However, these materials cannot be totally guaranteed against wear and/or decomposition by
chemical action (corrosion) as a result of normal use.
Repair parts are warranted to be free from defects in material and workmanship for 90 days from the date of shipment.
No instrument or product shall be returned to MICROMERITICS prior to notification of alleged defect and authorization
to return the instrument or product. All repairs or replacements are made subject to factory inspection of returned parts.
MICROMERITICS shall be released from all obligations under its warranty in the event repairs or modifications are
made by persons other than its own authorized service personnel unless such work is authorized in writing by
MICROMERITICS.
The obligations of this warranty will be limited under the following conditions:
1. Certain products sold by MICROMERITICS are the products of reputable manufacturers, sold under their
respective brand names or trade names. We, therefore, make no express or implied warranty as to such
products. We shall use our best efforts to obtain from the manufacturer, in accordance with his customary prac-
tice, the repair or replacement of such of his products that may prove defective in workmanship or materials. Ser-
vice charges made by such manufacturer are the responsibility of the ultimate purchaser. This states our entire
liability in respect to such products, except as an authorized person of MICROMERITICS may otherwise agree
to in writing.
2. If an instrument or product is found defective during the warranty period, replacement parts may, at the dis-
cretion of MICROMERITICS, be sent to be installed by the purchaser, e.g., printed circuit boards, check valves,
seals, etc.
3. Expendable items, e.g., sample tubes, detector source lamps, indicator lamps, fuses, valve plugs (rotor) and
stems, seals and O-rings, ferrules, etc., are excluded from this warranty except for manufacturing defects. Such
items which perform satisfactorily during the first 45 days after the date of shipment are assumed to be free of
manufacturing defects.
Purchaser agrees to hold MICROMERITICS harmless from any patent infringement action brought against
MICROMERITICS if, at the request of the purchaser, MICROMERITICS modifies a standard product or manufactures a
special product to the purchaser’s specifications.
MICROMERITICS shall not be liable for consequential or other type damages resulting from the use of any of its
products other than the liability stated above. This warranty is in lieu of all other warranties, express or implied, including
but not limited to, the implied warranties of merchantability or fitness for use.
Warranty
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Corporate Profile
CORPORATE PROFILE
Micromeritics Instrument Corporation is the world’s leading supplier of high-performance systems
to characterize particles, powders and porous materials with a focus on physical properties,
chemical activity, and flow properties. Our technology portfolio includes: pycnometry, adsorption,
dynamic chemisorption, particle size and shape, intrusion porosimetry, powder rheology, and
activity testing of catalysts. The company has R&D and manufacturing sites in the USA, UK, and
Spain, and direct sales and service operations throughout the Americas, Europe, and Asia.
Micromeritics systems are the instruments-of-choice in more than 10,000 laboratories of the
world’s most innovative companies, prestigious government, and academic institutions. Our
world-class scientists and responsive support teams enable customer success by applying
Micromeritics technology to the most demanding applications. For more information, please visit
www.Micromeritics.com.
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CONTACT US
Micromeritics Instrument Corporation
4356 Communications Drive
Norcross, GA / USA / 30093-2901
Phone: [phone]
Fax: [phone]
www.Micromeritics.com
Instrument Service or Repair
Phone: [phone]
International — contact your local distributor or call 1-770-662-3666
[email protected]
Micromeritics Learning Center
Phone: [phone]
www.Micro.edu
Contact Us
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About this Manual
ABOUT THIS MANUAL
The following can be found on the Micromeritics web page (www.Micromeritics.com).
nCalculations document (PDF)
nError Messages document (PDF) nParts and Accessories
All references to Gemini VII in this document encompass the Gemini VII models
2390a, 2390p, and 2390t unless otherwise noted. It also encompasses all references
to the Gemini VII and Gemini VII Confirm environments unless otherwise noted.
The following symbols or icons indicate safety precautions and/or supplemental information and
may appear in this manual:
NOTE— Notes contain important information applicable to the topic.
CAUTION — Cautions contain information to help prevent actions that may damage
the analyzer or components.
WARNING — Warnings contain information to help prevent actions that may cause
personal injury.
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GENERAL SAFETY
Do not modify this instrument without the authorization of a Micromeritics service
personnel.
Any piece of laboratory equipment can become dangerous to personnel when improperly
operated or poorly maintained. All employees operating and maintaining Micromeritics
instruments should be familiar with its operation and should be thoroughly trained and instructed
on safety.
nRead the operator manual for any special operational instructions for the instrument.
nKnow how the instrument functions and understand the operating processes.
nWear the appropriate personal protective equipment when operating this
instrument — such as eye protection, lab coat, protective gloves, etc.
nWhen lifting or relocating the instrument, use proper lifting and transporting devices
for heavy instruments. Ensure that sufficient personnel are available to assist in
moving the instrument. The Gemini 2390 weighs approximately 32 kg (75 lb).
nAlways pay attention to the safety instructions provided on each label affixed to the
instrument and do not alter or remove the labels. When inspecting the instrument,
ensure that the safety labels have not become worn or damaged.
nProper maintenance is critical to personnel safety and smooth instrument
operation and performance. Instruments require regular maintenance to help
promote safety, provide an optimum end test result, and to prevent costly down
time. Failure to practice proper maintenance procedures can lead to unsafe
conditions and shorten the life of the instrument.
nImproper handling, disposing of, or transporting potentially hazardous materials
can cause serious bodily harm or damage the instrument. Always refer to the
MSDS when handling hazardous materials. Safe operation and handling of the
instrument, supplies, and accessories is the responsibility of the operator.
General Safety
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General Safety
INTENDED USE
The Gemini VII series analyzers provide single and multipoint surface area and pore size
measurements. Three models are available — the Gemini 2390a, 2390p, and 2390t.
The Gemini 2390a and 2390p are enclosed in the same size cabinet. The only physical difference
is the P0(saturation pressure) tube, which is installed on the Gemini 2390p, allowing continuous
measurement of the saturation pressure.
The Gemini 2390t is in a slightly larger cabinet allowing the use of a larger dewar and longer
sample tubes for extended analyses. This model also is equipped with a P0tube.
Most application features are available on all three models, with the exception of a continuous P0
measurement and a few reports.
The instrument is intended to be operated by trained personnel familiar with the
proper operation of the equipment recommended by the manufacturer as well as
relevant hazards involved and prevention methods. All use, other than that described
in this manual, is seen as unintended use and can cause a safety hazard.
The instrument is intended to be used as per applicable local and national regulations.
TRAINING
It is the responsibility of the customer to ensure that all personnel operating or maintaining the
equipment participate in training and instruction sessions. All personnel operating, inspecting,
servicing, or cleaning this instrument must be properly trained in operation and machine safety
before operating this instrument.
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ENVIRONMENTALLY FRIENDLY USE PERIOD
Part Name
Hazardous Substances
Lead
(Pb)
Mercury
(Hg)
Cadmium
(Cd)
Hexavalent
Chromium
(Cr (VI))
Polybrominated
biphenyls
(PBB)
Polybrominated
diphenyl ethers
(PBDE)
Cover x o o o o o
Power
Supplies x o o o o o
Printed
Circuit
Boards
x o o o o o
Cables, Con-
nectors &
Transducers
x o o o o o
Hazardous Substances Table
o Hazardous substance is below the specified limits as described in SJ/T11363-2006.
x Hazardous substance is above the specified limits as described in SJ/T11363-2006.
The Environmentally Friendly Use Period (EFUP) for all enclosed products
and their parts are per the symbol shown here, unless otherwise marked. Cer-
tain parts may have a different EFUP (for example, battery modules) and so
are marked to reflect such. The Environmentally Friendly Use Period is valid
only when the product is operated under the conditions defined in the product
manual.
General Safety
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Table of Contents
Warranty i
Corporate Profile ii
Contact Us iii
About this Manual iv
General Safety v
1 Analyzer Components 1 - 1
Keypad Components 1 - 5
Equipment Options and Upgrades 1 - 6
Gas Requirements and Purity 1 - 8
Cryogen Requirements 1 - 8
Specifications for the Gemini VII 1 - 9
Keypad Window, Keys and Functions 1 - 12
Keypad Window 1 - 12
Keys 1 - 12
Keypad and Keyboard Functions 1 - 14
2 Operational Procedures 2 - 1
Define Set Up Groups 2 - 1
Prepare for Analysis 2 - 5
Verify Regulator Pressure 2 - 5
Verify Vacuum 2 - 5
Clean and Label Sample Tubes 2 - 6
Determine the Sample Mass 2 - 8
Degas the Sample 2 - 9
Sample Tube Installation 2 - 10
Fill and Install the Dewar 2 - 12
Start Analysis 2 - 14
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Analysis Results 2 - 16
View Analysis Results 2 - 16
Print Analysis Results 2 - 17
Transmit Analysis Results 2 - 17
E-mail Analysis Results 2 - 17
Measure Saturation Pressure 2 - 18
Cancel an Automatic Operation 2 - 19
Data Results 2 - 20
3 Command Prompts 3 - 1
Set Up Commands 3 - 3
Analysis Conditions 3 - 14
Report Options 3 - 20
Communications 3 - 34
System Options 3 - 38
Analyze Functions 3 - 44
QuickStart 3 - 47
Review Functions 3 - 48
Po Command 3 - 50
Print 3 - 51
Transmit 3 - 52
Manual Mode Operations 3 - 53
4 Diagnostics 4 - 1
Unit Configuration 4 - 2
Adsorptive Line Test 4 - 3
Helium Line Test 4 - 5
System Leak Test 4 - 7
System Check 4 - 9
Zero Test 4 - 10
5 Troubleshooting 5 - 1
Power 5 - 4
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Parts And Accessories 5 - 4
Safe Servicing 5 - 5
Guidelines for Connecting Gases 5 - 6
Clean and Verify the Gas Line 5 - 7
Replace a Gas Cylinder 5 - 8
Reference Analysis 5 - 9
Preventive Maintenance 5 - 11
Clean the Instrument 5 - 11
Check and Clean the Dewar 5 - 12
Clean the Gas Delivery Tubes 5 - 18
Lubricate the Elevator Drive Assembly 5 - 18
Power Instrument On and Off 5 - 18
A Data Format A - 1
Report Format - Single Column A - 1
Report Format - Spreadsheet A - 5
B Supported Printers B - 1
C RS-232 Operation C - 1
D Analyze Samples with a Total Surface Area of 1.0 m2 or Less D - 1
E Sample Data Worksheet for Gas Adsorption E - 1
Gemini VII 2390 EU Declaration of Conformity DoC - 1
Index Index - 1
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1 ANALYZER COMPONENTS
Parts and accessories can be found online at www.Micromeritics.com.
FRONT COMPONENTS
A. Dewar
B. Sample safety shield
C. Power indicator light
D. Balance port and balance tube
E. P0port and tube
F. Sample port and sample tube
G. Tube position diagram
H. Elevator
Components Description
Dewar For housing cryogens used for analysis. The Dewar rests on an
elevator.
Sample safety shield Closes to cover the Dewar.
Power indicator light Blinks when power is applied to the analyzer; illuminates when
the analysis program is initiated and ready for operation.
Balance port and balance
tube
The balance tube is identical to the sample tube. This design
negates free-space errors introduced by thermal gradient vari-
ations or by initial mismeasurement of free space.
P0port and tube Models 2390p and 2390t only. For measuring the saturation
pressure.
Front Components
1 Analyzer Components
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1 Analyzer Components
Components Description
Sample port and sample
tube
Holds the material to be analyzed.
Tube position diagram Diagram of the positions of the balance and sample tubes. The
empty tube represents the balance tube installed on the left port.
The filled tube represents the sample tube installed on the right
port.
Elevator Allows placement of the Dewar around the sample and P0
tubes. The elevator is raised automatically when the analysis is
started and lowers automatically upon completion.
Front Components (continued)
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REAR PANEL COMPONENTS
A. Power connector
B. Power switch
C. RS-232 connector (for service personnel use)
D. USBports
E. Ethernet port
F. Keypad connection (used only with keypad con-
figurations)
G. Helium inlet port for helium gas supply
H. Adsorptive gas inlet
I. Vacuum pump connector
Components Description
Adsorptive gas inlet Attaches the analysis gas supply.
Ethernet port Connects the analyzer to a network enabling notifications via e-mail
of analysis completion, and to monitor analysis results using a web
browser. A straight-through or shielded cross-over ethernet cable
can be used since the analyzer will adapt to either type.
Helium inlet port Attaches the helium gas supply.
Keypad connection Connects the keypad to the analyzer.
Power connector Connects the analyzer to the power supply.
Power switch Powers the analyzer on and off.
RS-232 connector Enables usage of a serial line for data transmission. This port can
also be used to attach an analytical balance for automatic trans-
mission of the sample mass. See Analyze Functions on page3 -
44 for details on transferring the mass value to the analyzer. See RS-
232 Operation on pageC - 1 for the pin assignment for the RS-232
port.
Rear Panel Components
1 Analyzer Components
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1 Analyzer Components
Components Description
USBports Attaches external devices, such as printers, bar code readers, and
keyboards. This connector is used to install software upgrades.
Vacuum pump
connector
Attaches the vacuum pump hose.
Rear Panel Components (continued)
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KEYPAD COMPONENTS
A. Keypad window
B. Keys
A. Contrast adjustment
B. Keypad cable port
Keypad Components
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1 Analyzer Components
EQUIPMENT OPTIONS AND UPGRADES
Parts and accessories can be found online at www.Micromeritics.com.
Option Description
Chiller Dewar For Gemini model 2390t.
A closed loop recirculating system that utilizes a high surface area
copper coil to provide excellent heat transfer between the Dewar and
the recirculating liquids. (missing or bad snippet) the Chiller Dewar
Quick Start Guide [part number 025-42801-00].
FlowPrep The FlowPrep applies both heat and a stream of inert gas to the
sample to remove adsorbed contaminants from the surface and
pores in preparation for analysis for up to six samples. Choose the
temperature, gas, and flow rate best suited for the sample material.
The FlowPrep is an independent unit and not controlled by the ana-
lyzer.
Smart VacPrep The Smart VacPrep prepares samples by heating and evacuation. It
contains six sample ports in which up to five temperatures, ramp
rates, and soak times per sample are individually controlled by the
analyzer program so that all degas information is integrated into the
sample data file for future reference. Samples can also be prepared,
started, and completed independently. There is no need to wait for
samples on other ports to finish. Front panel buttons allow a
QuickStart operation with preprogrammed conditions.
Up to three additional Smart VacPrep degassers can be connected
to one computer permitting 24 preparation ports to be used. The
Smart VacPrep is the recommended degassing unit.
VacPrep The VacPrep offers two methods for removing contaminants. In addi-
tion to flowing gas, it provides vacuum to prepare samples by heating
and evacuation of up to six samples. This combination provides pre-
paration method options best suited to the material or application.
Needle valves are also provided for introducing the vacuum slowly to
prevent fluidization of samples. The VacPrep is an independent unit
and not controlled by the analyzer.
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