Scaling Without Known Loads
(Continued)
To define the maximum load (
IN!2
and
RD!2
):
1. Repeat steps 3–8 above, entering the values for
IN!2
and
RD!2
.
2. Once you've completed all steps, the unit displays:
To begin operation:
Reinitialize the unit (press
RESET
twice
or press
MENU
until
RST
flashes on the
display). When a numeric reading
appears, the unit is operational.
Determining Reading Offset
The run mode reading for meters scaled without known loads
may reflect an offset. For example, say you set
RD!1
to 0 and
RD!2
to 100, but when the minimum load is applied, a
negative value of –1.5 displays on the front panel.
To correct the reading offset:
1. With zero load applied, note the reading on the display.
2. Subtract that amount from the
RD!1
and
RD!2
values you
originally entered.
In the example, the offset would be –1.5. If
RD!1
is to read
0 in Run Mode, it must be reentered as 1.5.
RD!2
must
likewise be reentered as 101.5 if the meter is to read 100
when the maximum load is applied.
3. Repeat the steps for "Scaling Without Known Loads," but
when the values for
IN!1
and
IN!2
display, do not change
them. Instead, press
MENU
to move to the prompts for
RD!1
and
RD!2
and make the necessary changes.
4. Reinitialize the unit and resume operation.
Scaling Without Known Loads
For 0–100 mV sensors, the values for the minimum and
maximum input loads are always as follows:
• Minimum load (
IN!1
) — 0
• Maximum load (
IN!2
) — 9999.
If your installation uses a different sensor type, you must
calculate the values for
IN!1
and
IN!2
before proceeding
with the steps below. Use the formula provided in the
Operator's Manual.
To define the minimum load (
IN!1
and
RD!1
):
1. If it's not already shown, press
MENU
until the unit displays:
2. Press
/TARE
. The unit displays:
3. Press
/TARE
again. The unit
displays the last setting for
IN!1
.
(The first digit flashes.)
4. Change
IN!1
as necessary:
• Press
/NT/GRS
to set or change the digit's current value.
Continue to press
/NT/GRS
until the meter displays the
desired value for the flashing digit. Values can range from 0 to 9.
For the first digit, you can also enter a minus sign (–) or –1.
• Press
/TARE
to scroll to the digit(s) you want to change.
5. Press
MENU
to store
IN!1
.
The unit displays:
6. Press
/TARE
. The unit displays
the last setting for
RD!1
.
(The first digit flashes.)
7. Change
RD!1
as necessary:
• Press
/NT/GRS
until the meter displays the desired
value for the flashing digit. Values can range from 0 to 9.
For the first digit, you can also enter a minus sign (–) or –1.
• Press
/TARE
to scroll to the digit(s) you want to change.
8. Press
MENU
to store the value
shown for
RD!1
. The unit displays:
Scaling With Known Loads
(Continued)
6. Press
MENU
to store
IN!1
. The unit
displays:
7. Press
/TARE
. The unit displays the
last setting for
RD!1
.
8. Change
RD!1
as necessary:
• Press
/TARE
to scroll to the digit(s) you want to change
(it flashes on the display).
• Press
/NT/GRS
to change the value of the flashing digit.
Values can range from 0 to 9. For the first digit, you can
also enter a minus sign (–) or –1.
9. Press
MENU
to store the value shown
for
RD!1
. The unit displays:
To identify the maximum known load (
IN!2
and
RD!2
):
1. Apply the maximum known load (100%).
2. Repeat steps 4–9 for
IN!2
and
RD!2
.
Once you've completed all steps, the unit displays:
To begin operation:
Reinitialize the unit (press
RESET
twice or press
MENU
until
RST
flashes on the display). When a
numeric reading appears, the unit is
operational.
Scaling With Known Loads
To identify the minimum known load (
IN!1
and
RD!1
):
1. If it's not already shown, press
MENU
until the unit displays:
2. Apply the minimum known load (0%).
3. Press
/TARE
. The unit displays:
4. Press
/TARE
again. The unit
displays the last setting for
IN!1
.
5. Press
/TARE
again. The unit
displays the actual reading being
received from the sending device.
5
6
7
8
To Scale the Meter
You can scale the meter in one of two ways:
1. With a known load — This method uses input (load)
information sent from another device such as a scale or a
simulator for voltage or current.
2. Without a known load — This involves calculating the load
based on transducer specifications and manually entering
it to the meter.
For both methods, you must first identify the minimum input
load
IN!1
and the corresponding display reading you want
RD!1
. Then you identify the maximum input load
IN!2
and
its corresponding display reading
RD!2
.
The decimal point is for display purposes only — you set it
where you want it to display for your application. When
entering
IN!1
and
IN!2
values, ignore any decimal point on
the display. However, you must enter
RD!1
and
RD!2
values
with the decimal point in the desired position.
MQS3598/0403
WARRANTY/DISCLAIMER
OMEGA Engineering, Inc. warrants this unit to be free of defects in materials
and workmanship for a period of
13 months
from date of purchase. OMEGA
Warranty adds an
additional one (1) month
grace period to the normal
one
(1) year
product warranty to cover handling and shipping time. This ensures
that OMEGA’s customers receive maximum coverage on each product.
If the unit should malfunction, it must be returned to the factory for evaluation.
OMEGA’s Customer Service Department will issue an Authorized Return (AR)
number immediately upon phone or written request. Upon examination 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 mishandling, improper
interfacing, operation outside of design limits, improper repair, or unauthorized
modification. This WARRANTY is VOID if the unit shows evidence of having
been tampered with or shows evidence of being damaged as a result of
excessive corrosion; or current, heat, moisture or vibration; improper
specification; misapplication; misuse 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.
OMEGA is pleased to offer suggestions on the use of its various
products. However, OMEGA neither assumes responsibility for any
omissions or errors nor assumes liability for any damages that result
from the use if its products in accordance with information provided by
OMEGA, either verbal or written. OMEGA warrants only that the parts
manufactured by it will be as specified and free of defects. OMEGA
MAKES NO OTHER WARRANTIES OR REPRESENTATIONS OF ANY
KIND WHATSOEVER, EXPRESSED OR IMPLIED, EXCEPT THAT OF
TITLE, AND ALL IMPLIED WARRANTIES INCLUDING ANY WARRANTY
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE HEREBY DISCLAIMED. LIMITATION OF LIABILITY: The remedies
of purchaser set forth herein are exclusive and the total liability of
OMEGA with respect to this order, whether based on contract,
warranty, negligence, indemnification, strict liability or otherwise, shall
not exceed the purchase price of the component upon which liability is
based. In no event shall OMEGA be liable for consequential, incidental
or special damages.
CONDITIONS: Equipment sold by OMEGA is not intended to be used, nor
shall it be used: (1) as a “Basic Component” under 10 CFR 21 (NRC), used in
or with any nuclear installation or activity; or (2) in medical applications or
used on humans. Should any Product(s) be used in or with any nuclear
installation or activity, medical application, used on humans, or misused in any
way, OMEGA assumes no responsibility as set forth in our basic WARRANTY
/ DISCLAIMER language, and additionally, purchaser will indemnify OMEGA
and hold OMEGA harmless from any liability or damage whatsoever arising
out of the use of the Product(s) in such a manner.
RETURN REQUESTS / INQUIRIES
Direct all warranty and repair requests/inquiries to the OMEGA Customer Service
Department. 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 number should then be marked 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
WARRANTY
RETURNS, please
have the following information available
BEFORE
contacting OMEGA:
1. P.O. number under which the
product was PURCHASED,
2. Model and serial number of the
product under warranty, and
3. Repair instructions and/or specific
problems relative to the product.
FOR
NON-WARRANTY
REPAIRS,
consult OMEGA for current repair
charges. Have the following information
available BEFORE contacting OMEGA:
1. P.O. number to cover the COST of
the repair,
2. Model and serial number of product,
and
3. Repair instructions and/or specific
problems relative to the product.
OMEGA’s policy is to make running changes, not model changes, whenever an
improvement is possible. This affords our customers the latest in technology and
engineering.
© Copyright 2003 OMEGA ENGINEERING, INC. All rights reserved.
This document may not be copied, photocopied, reproduced, translated, or reduced
to any electronic medium or machine-readable form, in whole or in part, without
prior written consent of OMEGA ENGINEERING, INC.
PATENT NOTICE: This product is covered by one or more of the following
patents: U.S. Pat. No. Des. 336,895; 5,274,577; 6,243,021 / CANADA
2052599; 2052600 / ITALY 1249456; 1250938 / FRANCE BREVET No. 91
12756 / SPAIN 2039150; 2048066 / UK PATENT No. GB2 249 837; GB2 248
954 / GERMANY DE 41 34398 C2. The “Meter Case Bezel Design” is a
trademark of NEWPORT Electronics, Inc., registered in the U.S.
USED UNDER LICENSE. Other U.S. and International patents pending or
applied for.
This device is marked with the international caution symbol. It is
important to read the Setup Guide before installing or commissioning this
device as it contains important information relating to safety and EMC.
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.
TRADEMARK NOTICE:
®
,
omega.com
®
and
are trademarks of OMEGA Engineering, Inc.
®
WARNING:
These products are not designed for use in, and should not be
used for, patient connected applications.
