Scott Fetzer Meriam M1000 User manual

A trusted leader in measurement
and calibration solutions.
Copyright © 2018 Meriam®
User Manual
M Digital Calibrator
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User Manual for M1000 Digital Calibrator  of 
Contents
General Information...................................................................................................................................
Notification Statements...................................................................................................
Glossary......................................................................................................................................
General warnings and cautions.......................................................................................................
Preventing injury ..................................................................................................................
Safety symbols.......................................................................................................................
Sample label for General Purpose digital calibrators................................
Fire or explosion hazard..................................................................................................
For General Purpose Series .........................................................................................
Do not exceed pressure limits....................................................................................
Sensors.................................................................................................................................................................
Customer calibration .............................................................................................................................
Calibrate the M1000 by using the keypad:.....................................................
1. User Zero............................................................................................................................
2. Restore Factory Calibration.................................................................................
3. User Span (Respan)...................................................................................................
Digital calibrator........................................................................................................................................
Battery.......................................................................................................................................
Batteries...................................................................................................................................
The display.............................................................................................................................
Keypad: Description of the keys............................................................................
The backlight........................................................................................................................
Measurement units..........................................................................................................
Auto O (Automatic shut o)...................................................................................
What does the Zero (ø) key do?.............................................................................
Specifications ..............................................................................................................................................
Sensors: type and range..............................................................................................
Temperature..........................................................................................................................
Relative Humidity..............................................................................................................
Vibration ..................................................................................................................................
Ingress specifications....................................................................................................
Altitude specifications...................................................................................................
Keypad......................................................................................................................................
Media Compatibility........................................................................................................
Battery Type..........................................................................................................................
EMC compliance ...............................................................................................................
Dimensional specifications........................................................................................
Weight.......................................................................................................................................
Enclosure ................................................................................................................................
Maintenance and cleaning................................................................................................................
Cleaning...................................................................................................................................
Prepare the digital calibrator for storage.........................................................
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User Manual for M1000 Digital Calibrator  of 
Help.......................................................................................................................................................................
Register your product....................................................................................................
Find downloads and documents ...........................................................................
Meriam Contact Information...........................................................................................................
Contact us..............................................................................................................................
Repair or Calibration.......................................................................................................
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User Manual for M1000 Digital Calibrator  of 
General Information
Notification Statements
Disclaimer
Every precaution has been taken in the preparation of this
manual. Nevertheless, Meriam assumes no responsibility for
errors or omissions or any damages resulting from the use of
the information contained in this publication, including, without
limitation, incidental, special, direct or consequential damages.
MERIAM MAKES NO REPRESENTATIONS OR WARRANTIES
WITH RESPECT TO THE ACCURACY OR COMPLETENESS OF
THE CONTENTS HEREOF AND SPECIFICALLY DISCLAIMS ANY
IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS
FOR ANY PARTICULAR PURPOSE. Meriam reserves the right to
revise this publication and to make changes from time to time in
the content hereof without obligation to notify any person of such
revision or changes.
In no event shall Meriam be liable for any indirect, special,
incidental, consequential, or punitive damages or for any lost
profits arising out of or relating to any services provided by
Meriam or its ailiates.
It is not possible for Meriam to identify all foreseeable uses or
misuses, therefore all persons involved in commissioning, using,
or maintaining this product must satisfy their self that each
intended application is acceptable.
Copyright
This publication is proprietary to Meriam and no ownership
rights are transferred. Neither this manual, nor any of the material
contained herein, may be reproduced without the prior written
consent of Meriam.
Trademark information
Design Patent D769,141 for the digital calibrator’s LCD display.
All other trademarks are the property of their respective owners.
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Glossary
Words and phrases with their definitions or explanations.
Words &
phrases
Definitions or explanations
Blinking • It indicates the active edit field on an edit
screen.
• It indicates the displayed value is not actively
changing (like Hold or stopped Test).
FS • FS is the abbreviation of Full Scale.
Home • Home is the first screen that displays after
turning on the digital calibrator. It’s the screen
with measurements and units on it.
• After you press the Home key in many other
screens, the digital calibrator returns you to
Home.
Key and
button
• A key refers to hardware push-buttons on the
keypad that you can press.
• A button refers to an area in meriSuite CG that
you can tap or click to select functions.
Isolated • The word isolated refers to the sensing
element being separated from the media. It
is commonly used in the phrases Absolute
Isolated (AI) pressure and Compound Isolated
(CI) pressure.
Customer
Calibration
• Customer calibration refers to any calibration
done outside of Meriam with non-Meriam
traceability.
• Customer calibration includes: Multipoint
calibration or adjustment.
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General warnings and cautions
Preventing injury
Failure to follow all instructions could result in injury:
▪Read the entire manual before using the digital calibrator.
▪Understand the contents before using the digital calibrator.
▪Follow all safety warnings and instructions provided with this
product.
Safety symbols
The following table defines the safety symbols, signal words,
and corresponding safety messages used in the manual. These
symbols:
▪Identify potential hazards.
▪Warn you about hazards that could result in personal injury or
equipment damage.
Safety symbols Explaining the symbols
Read directions
before using
This is the Read directions before using
symbol. This symbol indicates that you
must read the instruction manual.
DANGER
!
Indicates a potentially hazardous situation
which, if not avoided, will result in death or
serious injury.
WARNING
!
Indicates a potentially hazardous situation
which, if not avoided, could result in death
or serious injury.
CAUTION
!
Indicates a potentially hazardous situation
which, if not avoided, could result in minor
or moderate injury.
NOTICE
Indicates information essential for
proper product installation, operation or
maintenance.
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User Manual for M1000 Digital Calibrator  of 
Sample label for General Purpose digital
calibrators
All M1000 Series models are available for general-purpose use.
General Purpose (GP) versions are identified by the name plate
located on the rear of the unit under the protective rubber boot. A
sample of the General Purpose name plate is shown below:
USA |designed|engineered|assembled
For repair or calibration |
General Purpose
Four 1.5 V alkaline AA batteries
Operating Temperature:
–10 ºC < Ta < 50 ºC
Refer to manual for use and
safety precautions.
For use only
in non-hazardous
locations.
WARNING
!
Fire or explosion hazard
DANGER
!
▪Do not use General Purpose versions in hazardous areas.
▪Do not use General Purpose versions in areas that may
contain flammable gas or vapors, combustible dusts or
ignitable fibers where an unintended spark can cause a fire or
explosion.
For General Purpose Series
CAUTION
!
Substitution of components may impair operation and safety.
▪Disconnect power before servicing.
▪Do not power the digital calibrator with a combination of new
and old batteries.
▪Do not power the digital calibrator with a combination of
batteries from dierent manufacturers.
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Do not exceed pressure limits
WARNING
!
▪Do not exceed the Pressure Limits listed in the Specifications
section of this manual.
▪Failure to operate within the specified pressure limit could
result in minor or moderate injury.
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User Manual for M1000 Digital Calibrator  of 
Sensors
Use two wrenches to install or remove pressure connections
Connection: 1/8” female NPT, 316L SS.
▪Always use a 3/4 in. wrench on the pressure manifold when
you install or remove the 1/8 in. NPT fitting.
▪Applying torque to the manifold can damage the plastic
enclosure and voids the warranty.
▪Do not over tighten.
Carefully equalize the pressure
Avoid these two issues with dierential sensors:
1. Connecting pressure to the incorrect pressure port on DN
dierential pressure modules may cause damage to the
pressure sensor.
2. Applying pressure to either port before both connections are
made.
NOTICE
Apply pressure to both dierential ports at the same time.
Note: See Overrange limit in the section called Specifications
concerning overrange pressure limits. If over pressure damage
occurs, you must return the digital calibrator to the factory for
sensor replacement.
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Sensor manifold types
ZM1000-CNXXXX
ZM1000-DNXXXX
ZM1000-ANXXXX
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Customer calibration
Calibrate the M1000 by using the keypad:
You can calibrate the digital calibrator in the field for these three
types of calibration:
1. User Zero. (Zero key)
2. Restore Factory Calibration. (RESTORE FACTORY CAL)
3. User Span (RESPAN).
1. User Zero
How to zero Absolute Sensors
Overview of the zeroing Absolute Sensors
The digital calibrator is a stable and precise instrument. However,
on occasion the digital calibrator should have a new zero taken.
The new zero removes a zero drift that can occur after the digital
calibrator was last zeroed. The digital calibrator can be zeroed
only if the new applied zero is within ± 1 % FS of the original
factory calibration zero. This prevents accidental zeroing at
atmospheric pressure or other relatively high pressures. If the
digital calibrator is outside this limit, the calibrator cannot zero.
1. Referenced to Absolute Zero - This traditional and preferred
method takes a snapshot of the measured pressure when a
vacuum of less than 100 microns Absolute is applied to the
sensor.
2. Restore Factory Zero - This method restores the calibration
curve to the original zero taken at the factory.
Note: This feature is intended for comparison purposes, and
should not be used for real pressure measurement. This feature
does not compensate for any zero drift.
3. User Defined Oset (Zero) - With this method, you can enter
any pressure value when a known reference is applied (for
example, the local barometer). The digital calibrator compares
its actual measured value with the entered value, and calculate
a new zero reference based on the oset.
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User Manual for M1000 Digital Calibrator  of 
Steps for zeroing Absolute Sensors
You can zero the digital calibrator in one of three ways. The
following may appear in a dierent order depending on which
arrow key you press. When an absolute sensor displays on-screen,
press the Zero key to see one of the three sets of characters
below and the following three messages
On-screen
message Explanations
TAP  TO
CHOOSE REF
• Tapping the Accept key selects the displayed
reference.
ARROWS TO
CHANGE REF
• Tapping an Arrow key changes the displayed
reference.
X Cancels • Tapping the Cancel key cancels the zero
request.
ab5 0 • This is the on-screen abbreviation for
Absolute Zero.
dflt • This is the on-screen abbreviation for Default.
• If you want to restore the Factory Zero on a
sensor, press the Accept key when you see
these characters appear.
u5Er 0 • This refers to User Defined Oset (Zero). You
can set an absolute reference point other than
zero.
How to zero Dierential or Compound sensors
1. Disconnect from a pressure source and vent the pressure port
to atmosphere.
1. Do not remove the factory installed P2 plug if it is present.
2. The display should read close to zero.
2. Press the Zero key.
The top line displays dashes ------.
3. The process is complete when the digital calibrator returns to
the Home (Measurement Units) screen.
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User Manual for M1000 Digital Calibrator  of 
Note: You can only zero the digital calibrator if the new zero
value is within ± 5 % (of FS) of the original factory calibrated
zero. If the zero procedure generates a new zero reference
outside this limit, the procedure fails. Factory service may be
required.
2. Restore Factory Calibration
1. Press the Backward key from the Home screen to see
FACTORY CAL TAP  TO RESTORE.
2. Tapping  key asks you to confirm that you want to restore the
calibration: COMMIT FACT CAL? YES- NO-X.
1. Tapping the  key for YES restores the Factory Calibration
and it removes any calibration you may have entered and
it takes you back to FACTORY CAL TAP  TO RESTORE
screen. Tap the Home key to exit.
2. Tapping the X key for NO stops the Restore Factory
Calibration and it takes you back to FACTORY CAL TAP 
TO RESTORE screen. Tap the Home key to exit.
3. User Span (Respan)
1. From the Home screen, press the Backward key to see
RESPAN TAP  TO BEGIN.
The ✓ refers to the Accept key, the following key .
2. After tapping the  key, you see two lines of information
display:
1. A suggested reference pressure of 070.00 in large
characters.This refers to 70 % Full Scale.
2. APPLY REFERENCE PRESSURE -CONTINUE
X-CANCELS.
3. After tapping  to continue, the first character flashes on the
screen because you are in edit mode.
1. Use up or down arrow keys to change the value.
2. Or, use the right key to move to the value you need to
change.
4. After editing the value, you see:
ENTER PRESSURE TAP -FINISH X-CANCELS
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1. Tapping -FINISH accepts the pressure you entered and
takes you back to the RESPAN TAP  TO BEGIN. Tap the
Home key to exit RESPAN.
2. You can tap the X-CANCELS at any time to stop.
Note: The Units key is turned o during RESPAN.
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Digital calibrator
Battery
When you turn on the digital calibrator, it draws power from the
batteries and the battery icon displays in the bottom row. When
you press the information button, it displays Batt %.
Batteries
DANGER
!
Remove and replace batteries in non-hazardous (safe) areas only.
Turn o the backlight
▪Turn o the backlight when you need to conserve battery
power.
▪The backlight is dimmed when the digital calibrator is in low
battery mode.
Suggested brands of batteries
The following is a suggested list of batteries.
▪Duracell MN1500
▪Duracell PC1500
▪Energizer EN91
▪Panasonic LR6XWA
▪Rayovac 815
▪Varta 4906
Note: The digital calibrator is powered by four 1.5 volt AA size
batteries.
Know your batteries
▪Never mix batteries—not by manufacturer or by size, by
capacity, or by chemistry.
▪Never mix old and new batteries.
▪Remove all four batteries in the digital calibrator at the same
time.
▪Replace all four batteries with batteries from the same
package or with the same expiration date.
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Install the batteries
1. Turn over the digital calibrator so the display faces down.
2. Remove the two screws on the battery cover with the Phillips-
head screwdriver by turning them counterclockwise.
3. Insert the four AA batteries.
Note: Pay attention to the positive (+) and negative (−) battery
polarity markings at the bottom of the compartment.
4. Replace the battery cover.
5. To secure the cover, torque the screws clockwise 2 in. lbs.
maximum.
6. Do not over tighten.
NOTICE
To prevent internal damage to circuitry, do not substitute screws
with lengths that are dierent from the screws Meriam provided to
you.
Watch for the low battery indicator
The battery indicator on the display shows the current charge.
Note: Be prepared to change batteries when you see the outline
of the battery icon and the outline of the battery icon flashes.
You have approximately 2 hours of run time following a low
battery warning.
Refer to battery manufacturers’ instructions
Visit the website of the battery manufacturer to learn more about
the care, storage, shipping, use, disposal, and recycling of your
batteries.
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The display
Information Readout
Process Variable Readout
Bar Graph
The bar graph
The bar graph displays a live indication of the current pressure or
temperature applied to a sensor as a percent of FS.
Note: When you press the Information key, the bar graph
displays the remaining state of the charge for the batteries.
Display functions
The digital calibrator has six display functions.
Press the Forward (or Backward in reverse order) key to view
these modes.
1. Home is the default view with measurement units.
2. MIN (Minimum).
3. MAX (Maximum).
4. AVG (Average).
5. FACTORY CAL(ibration ) TAP ✓ TO RESTORE.
6. RESPAN TAP ✓ TO BEGIN.
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Keypad: Description of the keys
Name Key Description
Backward • It cycles backward through menu
options.
Home • Home key returns you to the
Measurement and Units screen.
• Home key is disabled during tests
and edits
Forward • It cycles forward through menu
options.
Units • Select a measurement unit.
Release Hold • It releases the Hold.
Hold • It begins a Hold.
Up arrow • It increases digits by one.
Left arrow • It moves the blinking cursor one
space at a time to the left.
Zero • Zero key resets pressure values to
zero.
• It resets min max values.
• It sets edit values to zero.
Right arrow • It moves the blinking cursor one
space at a time to the right.
Down Arrow • It decreases digits by one.
Cancel or Esc • Cancel any editing or changes
without saving.
• It also stops tests.
Accept • Accept applies all editing and
changes, and then saves them.
• It also stops tests.
Power • Turns the digital calibrator on or o.
Information • Displays information about the digital
calibrator, internal sensor, and the
firmware.
Backlight • It provides on and o only.
The Information key and the Home screen
The Information menu provides you with details about the digital
calibrator and sensors.
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1. Batt % displays the percentage on the bar graph and in digits.
2. Indicates sensor type (or measurement type): compound,
absolute, or dierential.
3. CAL DATE
4. USL is an abbreviation for upper sensor limit.
5. LSL is an abbreviation for lower sensor limit.
6. LT MAX % displays the Life-Time Maximum that has been
reached on the sensor.
7. SENSOR F/W VERS (F/W is an abbreviation for firmware)
[this message scrolls to display the information]
8. SENSOR S/N (S/N is an abbreviation for serial number)
[this message scrolls to display the information]
9. DEV F/W VER (DEV is an abbreviation for device; it refers
to the digital calibrator) [this message scrolls to display the
information]
10. DEV S/N [this message scrolls to display the information]
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Up and Down Arrows
1. In the edit mode, the Up Arrow increases the digit each time
you press it. The Down Arrow decreases the digit
and
1. Up Arrow: 0 to 1 to 2 to 3 to 4 to 5 to 6 to 7 to 8 to 9.
2. Down Arrow: –0 to –1 to –2 to –3 to –4 to –5 to –6 to –7 to
–8 to –9.
3. The negative symbol in the display appears in front of the
first digit when it is required.
The backlight
White backlight
The white backlight has an automatic time out. If you do not press
any keys while the backlight is on, it automatically turns o.
Backlight
Press the Backlight key to cycle through: On or O.
Flashing red backlight
The flashing red backlight indicates an error condition. Possible
error conditions are:
▪Pressure has exceeded the calibrated accuracy of the digital
calibrator.
▪Pressure has fallen below the stated accuracy of the digital
calibrator.
Note: The red backlight overrides the white backlight.
Overrange condition
During an error or overrange condition, the red backlight
overrides the white backlight.
However, once the error or overrange condition is corrected, the
white backlight is restored to its previous state (if the backlight
Auto O timeout did not expire).
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