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An OMEGA Technologies Company
www.omega.com
e-mail:info@omega.com
OMNI-AMP IV Series
Thermocouple Amplifier
®
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Servicing North America:
USA:USA:
USA:
USA:USA:
ISO 9001 Certified Stamford, CT 06907-0047
Canada:Canada:
Canada:
Canada:Canada:
One Omega Drive, Box 4047
Tel: (203) 359-1660 FAX: (203) 359-7700
e-mail: info@omega.com
976 Bergar
Laval (Quebec) H7L 5A1
Tel: (514) 856-6928 FAX: (514) 856-6886
e-mail: info@omega.ca
For immediate technical or application assistance:
USA and Canada:USA and Canada:
USA and Canada: Sales Service: 1-800-826-6342 / 1-800-TC-OMEGASM
USA and Canada:USA and Canada:
Customer Service: 1-800-622-2378 / 1-800-622-BESTSM
Engineering Service: 1-800-872-9436 / 1-800-USA-WHENSM
TELEX: 996404 EASYLINK: 62968934 CABLE: OMEGA
Mexico andMexico and
Mexico and
Mexico andMexico and
Latin America:Latin America:
Latin America: Tel: (95) 800-826-6342 FAX: (95) 203-359-7807
Latin America:Latin America:
En Español: (95) 203-359-7803 e-mail: espanol@omega.com
Servicing Europe:
Benelux:Benelux:
Benelux: Postbus 8034, 1180 LA Amstelveen, The Netherlands
Benelux:Benelux:
Tel: (31) 20 6418405 FAX: (31) 20 6434643
Toll Free in Benelux: 0800 0993344
e-mail: nl@omega.com
Czech Republic:Czech Republic:
Czech Republic: ul. Rude armady 1868, 733 01 Karvina-Hranice
Czech Republic:Czech Republic:
Tel: 420 (69) 6311899 FAX: 420 (69) 6311114
Toll Free: 0800-1-66342
e-mail: czech@omega.com
France:France:
France: 9, rue Denis Papin, 78190 Trappes
France:France:
Tel: (33) 130-621-400 FAX: (33) 130-699-120
Toll Free in France: 0800-4-06342
e-mail: france@omega.com
Germany/Austria:Germany/Austria:
Germany/Austria: Daimlerstrasse 26, D-75392 Deckenpfronn, Germany
Germany/Austria:Germany/Austria:
Tel: 49 (07056) 3017 FAX: 49 (07056) 8540
Toll Free in Germany: 0130 11 21 66
e-mail: info@omega.de
United Kingdom:United Kingdom:
United Kingdom: One Omega Drive, River Bend T echnology Centr e
United Kingdom:United Kingdom:
ISO 9002 Certified Northbank, Irlam, Manchester
M44 5EX, England
Tel: 44 (161) 777-6611 FAX: 44 (161) 777-6622
Toll Free in the United Kingdom: 0800-488-488
e-mail: info@omega.co.uk
It is the policy of OMEGA to comply with all worldwide safety and EMC/EMI regulations that apply.
OMEGA is constantly pursuing certification of its products to the European New Approach Directives.
OMEGA will add the CE mark to every appropriate device upon certification.
The information contained in this document is believed to be correct, but OMEGA Engineering, Inc. accepts
no liability for any errors it contains, and reserves the right to alter specifications without notice.
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ARNINGARNING
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ARNING: These products are not designed for use in, and should not be used for, patient-connected applications.
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Features
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100% Encapsulated
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2 µV/°C Zero Stability
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0.025°F/°F Reference Junction Stability
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Up or Down Scale TC Burn-out
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115 VAC or 230 VAC Power
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Easy Mounting
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±10 VDC Output
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Input Protection to 115 VAC or DC
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Scale Factor of 10 mV/°F
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Over 120 dB CMRR at 60 Hz
Amplifier
The amplifier is a multiple IC instrumentation amplifier with
excellent zero and gain stability. Gain can be adjusted from 40
to 1500 so the amplifier can be used with a variety of
thermocouple signals. An internal path is provided for amplifier
input bias current. The amplifier has excellent common mode
rejection allowing the thermocouple input leads to be several
hundred feet long without degraded performance due to 60
Hz common mode pick-up. The amplifier is also protected
against an accidental over-voltage applied to the input. Please
note that the amplifier has cold junction compensation but not
linearization. The maximum output is ±10 Volts, providing up
to 1000°F output at 10 mV/°F or 10,000°F at 1 mV/°F.
Description
The OMNI-AMP IV is a high performance rugged epoxy
encapsulated thermocouple amplifier with built-in power
supply. It can be used with Type E, J, T, or K thermocouples
by changing only the span adjustment. Types R, S, and B can
be accommodated by ordering the 1 mV/°F scale factor
option. Only the highest quality industrial components are
used for reliable and long operation. Connections are made
with an ordinary screwdriver to rugged terminal strips. The
amplifier can be mounted using the set of bolts supplied with
the unit.
A reference junction temperature output is also supplied.
Figure 1 shows a block diagram of the amplifier.
OMNI-AMP IV
FIGURE 1. OMNI-AMP IV Block Diagram
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