WARRANTY / DIS CLAIMER
Inside this package:
OMEGA ENGINEERING, INC. warrants this unit to be free of defects in m aterials and workm anship for a period of
1 3 m o n t h s from date of purchase. OMEGA’s Warranty adds an additional one (1) m onth grace period to the nor-
m al o n e (1) yea r p ro d uc t w a rra n t y to cover handling and shipping time. This ensures that OMEGA’s custom ers
receive maximum coverage on each product.
OM-51 is shipped with:
Use r ’s Gu id e
1. OM-51 State data logger
2. Contact closure cable
3. Magnet
If the unit malfunctions, it m ust be returned to the factory for evaluation. OMEGA’s Customer Service Departm ent will issue
an Authorized Return (AR) num ber imm ediately upon phone or written request. Upon exam ination by OMEGA, if the unit is
found to be defective, it will be repaired or replaced at no charge. OMEGA’s WARRANTY does not apply to defects resulting
from any action of the purchaser, including but not limited to m ishandling, improper interfacing, operation outside of design
limits, improper repair, or unauthorized modification. This WARRANTY is VOID if the unit shows evidence of having been
tam pered with or shows evidence of having been dam aged as a result of excessive corrosion; or current, heat, m oisture
or vibration; im proper specification; misapplication; m isuse or other operating conditions outside of OMEGA’s control.
Components which wear are not warranted, including but not limited to contact points, fuses, and triacs.
4. Mounting Accessories:
Magnet
Hook and loop tape
Double-sided tape
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OMEGA is p le a s e d t o o ffe r s u g g e s t io n s o n t h e u s e o f it s va rio u s p ro d u c t s . Ho w e ve r, OMEGA n e it h e r
a s s u m e s re s p o n s ib ilit y fo r a n y o m is s io n s o r e rro rs n o r a s s u m e s lia b ilit y fo r a n y d a m a g e s t h a t re s u lt
fro m t h e u s e o f it s p ro d u c t s in a c c o rd a n c e w it h in fo rm a t io n p ro vid e d b y OMEGA, e it h e r ve rb a l o r
w rit t e n . OMEGA w a rra n t s o n ly t h a t t h e p a rt s m a n u fa c t u re d b y it w ill b e a s s p e c ifie d an d fre e o f
d e f e c t s . O M EG A M A K ES N O O TH ER WA RR A N TIES O R RE P RES EN TAT IO N S O F A N Y K IN D
WHATS OEVER, EXP RES S OR IMP LIED, EXCEP T THAT OF TITLE, AN D A LL IMP LIED WARRANTIES
INCLUDING ANY WARRANTY OF MERCHANTABILITY AND FITNES S FOR A P ARTICULAR P URP OS E
ARE HEREBY DIS CLAIMED. LIMITATION OF LIABILITY: Th e re m e d ie s o f p u rc h a s e r s e t fo rt h h e re in a re
e xc lu s ive , a n d t h e t o t a l lia b ilit y o f OMEGA w it h re s p e c t t o t h is o rd e r, w h e t h e r b a s e d o n c o n t ra c t ,
w a rra n t y, n eg lig e n c e , in d e m n ific a t io n , s t rict lia b ilit y o r o t h e rw is e , s h a ll n o t e xc e e d t h e p u rc h a s e
p r ic e o f t h e c o m p o n e n t u p o n w h ic h lia b ilit y is b a s e d . In n o e v e n t s h a ll O MEGA b e lia b le fo r
c o n s e q u e n t ia l, in c id e n t a l o r s p e c ia l d a m a g e s .
5. This User’s Manual
Mounting options
www.omega.com
e-mail: info@omega.com
Included with your OM-51 data logger are
three options for mounting it on location: a
magnet, hook and loop tape, and double-sided
tape. These can be stuck on the back of your
data logger. When using the magnet, note that
it works best on flat surfaces.
O M-5 1
Sta te Da ta log ge r
The OM-51 State data logger requires
Logger Software for Windows and PC
interface cable for operation.
CONDITIONS: Equipm ent s old by OMEGA is no t inten ded to be u se d, nor s ha ll it be u se d: (1) as
a
“Basic
Com pon en t” und er 10 CFR 21 (NRC), us ed in or w ith an y nu clear insta llatio n or a ctivity; o r (2) in m ed ical
applications or used on hum ans. Should any Product(s) be used in or with any nuclear installation or activity,
m edical application, used on hum ans, or m isused in any way, OMEGA assum es no responsibility as set forth in our
basic WARRANTY/ DISCLAIMER language, and, additionally, purchaser will indem nify OMEGA and hold OMEGA
harm less from any liability or dam age whatsoever arising out of the use of the Product(s) in such a m anner.
Introduction
OM-51 State data loggers in detail
OM-51 State data loggers work well when
there are only two values to measure (i.e.
open or closed; on or off). The OM-51 State
data logger records the time at which a state
change occurs (with a resolution of half a
second), and records nothing between these
changes. If you wanted to do this with a
logger that uses preset intervals, you would
have to set it to 1/ 2 second intervals, and an
8K logger would run out of memory in about
an hour. The OM-51 State data logger checks
for the contact closure every half of a second,
and can record 2000 state changes. Its time
out in the field is limited by the battery (about
one year).
Thank you for buying the OM-51 State
data logger. With proper care it will give
you years of reliable readings. The OM-51
State data logger has two inputs, a magnet-
ic reed switch located in the middle of the
hinge of the case (opposite the connectors),
and an external contact closure input. The
logger will indicate a closed state if either a
magnet is present, or the external contact is
closed.
RETURN REQUES TS / INQUIRIES
Direct all warranty and repair requests/inquiries to the OMEGA Customer Service Departm ent. BEFORE RETURNING
ANY PRODUCT(S) TO OMEGA, PURCHASER MUST OBTAIN AN AUTHORIZED RETURN (AR) NUMBER FROM
OMEGA’S CUSTOMER SERVICE DEPARTMENT (IN ORDER TO AVOID PROCESSING DELAYS). The assigned AR
num ber should then be m arked on the outside of the return package and on any correspondence.
The purchaser is responsible for shipping charges, freight, insurance and proper packaging to prevent breakage in transit.
FOR NON-WARRANTY REPAIRS, consult OMEGA
for current repair charges. Have the following
inform ation available BEFORE contacting OMEGA:
FOR WARRANTY RETURNS, please have the
following inform ation available BEFORE contacting
OMEGA:
1. Purchase Order num ber to cover the COST
of the repair,
1. Purchase Order num ber under which the
product was PURCHASED,
A different kind of logger
2. Model and serial num ber of the product, and
3. Repair instructions and/or specific problem s
relative to the product.
2. Model and serial num ber of the product under
warranty, and
3. Repair instructions and/or specific problem s
relative to the product.
Other loggers record measurements with
their sensors at regular preset intervals.
These loggers record the time evolution of
a physical property (temperature, RH, etc.).
Usually the physical property has a long
time-constant associated with it (water and
air temperatures usually change slowly), so
measuring at an interval that is shorter
than this time-constant will give a realistic
representation of what has happened. The
OM-51 State does not have a preset inter-
val. It will always be monitoring and will
only record when a change of state occurs.
OMEGA’s policy is to m ake running changes, not m odel changes, whenever an im provem ent is possible. This affords our custom ers the
latest in technology and engineering.
OMEGA is a registered tradem ark of OMEGA ENGINEERING, INC.
© Copyright 2001 OMEGA ENGINEERING, INC. All rights reserved. This document m ay not be copied, photocopied, reproduced, translated, or
reduced to any electronic m edium or machine-readable form, in whole or in part, without the prior written consent of OMEGA ENGINEERING, INC.
No data is information, too
The OM-51 State logger records the initial
state and a final state at readout, even if the
state has not changed. This allows you to
determine the entire period during which the
OM-51 State was watching for state changes.
D-5385-B M3615/ 1100
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