Bio-Rad EM-1 User Manual
Model EM-1
Econo UV
Monitor
Instruction
Manual
Catalog Numbers
731-8160
731-8162
For Technical Service
Call Your Local Bio-Rad Office or
in the U.S. Call 1-800-4BIORAD
(1-800-424-6723)
Warranty
Model _________________________________________
Serial Number __________________________________
Date of Delivery_________________________________
Warranty Period _________________________________
Unless otherwise specified, instruments sold by Bio-Rad
Laboratories are under warranty for 1 year against defects in materials
and workmanship.
If any defects should occur during this warranty period, Bio-Rad
will replace the defective parts without charge. However, the following
defects are specifically excluded:
1. Defects caused by improper operation, accident, or misuse.
2. Repair or modification done by anyone other than Bio-Rad
Laboratories or their authorized agent.
3. Deliberate or accidental misuse
4. Damage caused by disaster.
5. Damage due to use of improper solvent or sample.
6. Damage due to spills.
This warranty does not apply to flow cell, UV lamp, fittings, tubing,
and fuses.
For inquiry or request for instrument repair service, contact Bio-Rad
Laboratories after confirming the model and serial number of your
instrument.
For Technical Service Call Your Local Bio-Rad Office or in the U.S.
Call 1-800-4BIORAD (1-800-424-6723).
Table of Contents
Section 1 Safety.......................................................................... 1
Section 2 Introduction............................................................... 2
Section 3 Unpacking.................................................................. 2
Section 4 Description and Features......................................... 4
4.1 Front Panel Functions ......................................................... 4
4.2 Rear Panel Sockets.............................................................. 6
4.3 Optics Module..................................................................... 7
Section 5 Setting Up .................................................................. 8
5.1 Voltage Conversion ............................................................. 8
5.2 Wavelength Selection.......................................................... 9
5.3 Optics Module Installation.................................................. 9
5.4 Connecting the Model EM-1 Econo UV Monitor to
Recording Equipment ......................................................... 10
Section 6 General Operation.................................................... 10
Section 7 Care and Maintenance............................................. 11
Section 8 Troubleshooting ........................................................ 12
Appendix A Flow Cell Replacement ............................................ 14
Appendix B UV Lamp Replacement............................................ 15
Appendix C Rear Panel Connections........................................... 17
Appendix D Technical Specifications ........................................... 18
Appendix E Product Information................................................. 19
Section 1
!!!
Safety
Disconnect supply before servicing. No user serviceable parts
inside. Refer servicing to Bio-Rad service personnel.
Disconnect supply before removing optics module connector.
Optics module produces ultraviolet radiation. Disconnect supply
before changing filter or flow cell.
This instrument is intended for laboratory use only.
This product conforms to the “Class A” standards for electromagnetic emissions intended for laboratory equipment applications.
It is possible that emissions from this product may interfere with
some sensitive appliances when placed nearby or in the same circuit
as those appliances. The user should be aware of this potential and
take appropriate measures to avoid interference.
1
Section 2
Introduction
Fig. 2.1. Model EM-1 Econo UV Monitor.
The Model EM-1 Econo UV Monitor is a high quality dual wavelength detector for liquid chromatography. The monitor consists of a
control unit and a portable optics module. The optics module comes
equipped with two interchangeable filters (280 nm and 254 nm), a userserviceable mercury lamp, and a 2 mm pathlength flow cell. All filters
and flow cells are easily changed in minutes, and polypropylene luer
connectors allow rapid tubing connections. The Model EM-1 Econo UV
Monitor functions as a stand-alone instrument, or as an integral part of
a low pressure chromatography system.
For technical specifications, refer to Appendix D.
Section 3
Unpacking
Carefully remove the contents of the shipping box, and check for
any obvious damage or problems with the instrument. Figure 3.1 shows
the parts included with the Model EM-1 Econo UV Monitor. Check off
all parts against the supplied packing list.
If any parts are missing or damaged, contact Bio-Rad Laboratories
immediately.
2
Cable #4
(4)
(4)
(4)
(2)
Fittings
Power Cord
Also includes: Instruction Manual
Fig. 3.1. Parts supplied with the Model EM-1 Econo UV Monitor.
Optics Module
Control Unit
3
Section 4
Description and Features
The Model EM-1 Econo UV Monitor consists of two units. The
control unit houses the controls and the majority of the electronics,
while the optics unit contains the UV lamp, the flow cell, and filter tray,
which contains both 254 nm and 280 nm filters.
The following tables and illustrations describe the features of the
Model EM-1 Econo UV Monitor. For additional functions available
when operating with other low pressure components, refer to Section 7.
4.1 Front Panel Functions
Fig. 4.1. Front panel controls.
Display Function
UV Lamp On/Off Pressing this key will turn the
UV lamp on. Pressing and holding it for 3 seconds will turn the
lamp off. The indicator light is
lit whenever the UV lamp is on
and functioning properly. It
turns off if the lamp is off, and
flashes if the lamp has low output. Note: The indicator will
flash for a few minutes when
the UV lamp is first turned on.
4
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