Manual - ITM Instruments Inc.
Contents
1. Polycarbonate Permanently Static Dissipative ESD Protection Enclosure with Boot 6 8 x 3 5 x 1 3 Display Resolution Range 0 9 0 99 0 999 0 9999 Display x yyy XX yy XXX y XXXX Some pressure units may display differently depending upon full scale range and accuracy Display Warnings HI The temperature of M1 above valid calibration range field recalibration value LO The temperature of M1 below valid calibration range field recalibration value P HI Pressure applied to M1 above valid calibration range field recalibration value P LO Pressure applied to M1 below valid calibration range field recalibration value www meriam com a meriam process technologies Page 13 of 17 2 ett Rawr como 1 800 561 8187 www GMD com information itm com 1 800 561 8187 M1 Series DM Instruction Manual 9R000034 IR E O 6409 Certification Safety Warnings JAN 2008 The following defines the certification and area classification of the M1 Series pressure instrument f a A meriam dogus www meriam com Cleveland OH 44102 USA M1 Series Handheld Manometer for General Locations Digital Manometer Single Function Calibrator CAUTION Use 3 AA Datterise of the same type and brand 9P000073PN01 Note the following WARNINGS and requirements e User must use bulkhead fitting hex surface when attaching user s 1 8 NPT fitting When making mechanical connect2. Absolute models have one used pressure port P1 P2 is used to vent enclosure sensor to atmosphere Differential Absolute Barometric Pressure or Atmospheric Pressure Absolute Zero WARNING gt Connection to the incorrect pressure port may cause damage to the pressure sensor Once this sort of damage occurs the unit must be returned to the factory for sensor replacement WARNING gt User must use bulkhead fitting hex surface when attaching user s 1 8 NPT fitting No torque can be applied to bulkhead fitting with respect to plastic enclosure www meriam com a meriam process technologies Page 16 of 17 o mora Faa ooren 1 800 561 8187 PETTE com information itm com M1 Series DM Instruction Manual 9R000034 IR E O 6409 JAN 2008 Contact Information If the M1 cannot be zeroed spanned or is damaged it must be returned to the factory for servicing In this case contact the Meriam Process Technologies representative in your area or call the factory at the numbers listed below for a Return Material Authorization RMA number Meriam Process Technologies 10920 Madison Ave Cleveland OH 44102 Phone 216 281 1100 FAX 216 281 0228 All M1 Series pressure instruments recalibrated at the factory are returned with certificates of NIST traceability www meriam com a meram Page 17 of 17 e Seti Reser Comoe 1 800 561 8187 www GMD com information itm com
3. Install the three batteries by sliding them into the bottom of the battery slots making sure the polarity markings on the batteries align with the markings shown in the battery compartment The battery compartment has stand offs molded into the side of the compartment When a battery is installed with the polarity reversed the stand offs prevent the negative battery terminal from contacting the positive terminal in the battery compartment The unit will not power up when a battery is installed this way Should this happen simply reverse the battery to correct the polarity With the batteries secured in the battery compartment replace the compartment cover The cover has only one orientation for correct alignment The WARNING DO NOT OPEN IN EXPLOSIVE ATMOSPHERE statement on the battery cover must be visible and aligned in the approximate middle of the M1 case To secure the cover torque the screws clockwise to 1 6 in lbs Do not over tighten Wwww meriam com x meriam Page 15 of 17 Semt Teim Some 1 800 561 8187 PETTE com information itm com M1 Series DM Instruction Manual 9R000034 IR E O 6409 JAN 2008 User Connections Connection 1 8 female NPT 316SS The pressure connections P1 and P2 are marked on top of the keypad as shown on page 1 D or Differential models have 2 used pressure ports P1 is the high pressure connection and P2 is the low pressure connection as shown below G Gauge and A
4. frequently used functions like Zero Span and Record are accessible via multiple key combinations A complete list of these functions is printed on the back of the case www meriam com a meriam process technologies Page 3 of 17 mearan commen 1 800 561 8187 PETTE com information itm com M1 Series DM Instruction Manual 9R000034 IR E O 6409 JAN 2008 User Interface Single Keypad Functions ON OFF O Key The ON OFF key represented by the standard ON OFF symbol turns the M1 ON or OFF note the ON OFF key must be held until the display turns on or off Upon power on the M1 will perform a self test display all segments for approximately 1 2 seconds then go into the normal pressure measure mode using the last pressure units selected To view the calibrated accuracy and firmware revision press and hold the ON OFF key for approximately 2 seconds upon power on The display will alternate between the calibrated accuracy and firmware revision for as long as the ON OFF key is held BACKLIGHT B Key The BACKLIGHT key represented by the standard light bulb symbol turns the green display backlight on and off The backlight will remain on for approximately 20 seconds if not manually turned off To temporarily override the auto shut off feature press and hold the BACKLIGHT key for approximately 2 seconds until the backlight turns on off on FUNC F Key This key selects the functional mode of the M1 Detailed in
5. 1 800 561 8187 M1 Series DM Instruction Manual 9R000034 IR E O 6409 JAN 2008 M1 SERIES DIGITAL MANOMETER USER MANUAL A moriam mmHg inHg mmH M1 SERIES Meriam Process Technologies M1 Series pressure instrument is a microcontroller based pressure sensing device that can be used to directly measure pressure Differential Gauge and Absolute pressure sensors are supported up to 100 PSI Pressure can be displayed in selectable engineering units of PSI bar mbar kPa mmHg inHg mmH20 or inH20 www meriam com A meriam process techaologies Page of 17 2 soot Feces Somer wow TELE com information itm com M1 Series DM Instruction Manual 9R000034 IR E O 6409 JAN 2008 Table of Contents Introdut ria E EEN E a 3 User Interfaces e E EEK 4 Single Keypad Functions ccccesccesestesseeeseeeeeees 4 ON OFF O Keyan ar 4 BACKLIGHT B Key eeccceccccceeseseeeeeteeeeeeeenees 4 FUNC F Key iinsert 4 UNIT U Key ccccccccccseesecscesecsseseenseseeeseeseneenees 4 Zeroing the M1 cceeseesceseceseceeecseecseceseeseeeseeeseeees 5 Functional Modes ccccccecsssceceeceeeessseceessseeesseeeees 5 Liquid Crystal Display LCD seser 6 Engineering Units Select ccceccccesseeteesteeseeees 7 Record Mode cceccccecssccccsssceceessececesseeecssseeceesaes 8 Auto Shut Off oo ccccccccesccceessseecessseeeesseeeeeens 9 Field Recalibration 00ccccccccccscceessseceesseeeee
6. D 2000 inH20 72 3 psi A 755 mmHg 15 psia A 1551 mmHg 30 psia A 2585 mmHg 50 psia G 5 psi G 15 psi G 30 psi G 50 psi G 100 psi Accuracy 0 25 of FS Includes the combined effects of temperature linearity repeatability hysteresis and resolution Temperature Storage 40 C to 60 C 40 F to 140 F Operating 10 C to 50 C 14 F to 122 F Reading Inside product 1 C Media Compatibility Clean dry non corrosive gases only Pressure Limits D 3 x FS range on high side only or 200 PSI whichever is less G or A 3 x FS range or 200 PSI whichever is less Connection D 1 8 female NPT 316SS P1 high side P2 G 1 8 female NPT P1 port only P2 vent A 1 8 female NPT P1 port only P2 vent See User Connection Section of this Manual low side www meriam com aa Page 12 of 17 www Tank com process enan s 2 Serti Fetzer comoarv information itm com M1 Series DM Instruction Manual 9R000034 IR E O 6409 JAN 2008 Battery Type 3 x AA battery field replaceable Alkaline A900614 00011 Duracell PC1500 1 5V 2000mAh Duracell MN1500 1 5V 2000mAh Varta 4906 1 5V 2600mAh Battery Operation gt 300 hours continuous use without backlight on 1 year shelf life auto power off set at 30 minutes low battery warning giving approximately 2 hours of run time Enclosure 6 5 x 3 2 x 1 1
7. eseeees 10 ZERO AA EEE teeta aide octets Seaetant ceteris 10 PAIN PAE EAE AET cian cease erase 11 Restore Factory Defaults cecceeseeeseeseeteeeees 11 Specifications cccecceescescesecesecseecsecsseeseeeseeeeeeees 12 Certification Safety Warnings c ceseeereeeees 14 Changing the Batteries 0 cccccsccseesseseeereeeeeeeeees 14 User Connections ccccccccsscccsesseceessssecessseeeeesseeees 16 Contact Information 00 cccccccccccceesssceeessseeeesseeees 17 www meriam com aA meriam Page 2 of 17 1 800 561 8187 PETTE com information itm com M1 Series DM Instruction Manual 9R000034 IR E O 6409 JAN 2008 Introduction Thank you for purchasing this Meriam product Meriam has been providing innovative reliable cost effective measurement and calibration solutions since 1911 The M1 has been designed using the latest technology to provide reliable accuracy throughout its entire operating temperature range dependable operation and exceptional battery life The compact design makes the unit easy to carry and the intuitive user interface makes it easy to use Pressure measurements are displayed on a large easy to read liquid crystal display LCD This unit has two backlights a green backlight which is user activated and an automatic red backlight which indicates an error over range condition Four keys provide direct access to frequently used functions like Units Backlight Other less
8. ges from to the Span pressure reading Note The M1 can only be spanned if the calculated measured span is within 5 times full scale accuracy of the original factory calibrated span pressure For example given Accuracy 0 25 FS FS 100 PSI and Span 70 PSI the Measured Span must be within 1 25 PSI of 70 PSI Note It should be noted that if the span pressure source used to recalibrate any pressure instrument is not accurate the M1 span can be recalibrated to a maximum discrepancy of 1 25 of the original factory span calibration pressure This can create a 1 25 gain error in all pressure measurements after the recalibration of span If this procedure generates a new value outside this limit the red backlight will flash to indicate the procedure failed and the previous value was retained Restore Factory Defaults The factory calibration defaults can be restored in the M1 by simultaneously pressing the O and F and U keys until the display shows The process is complete when the display changes from to the current pressure reading www meriam com AA meriam Page 11 of 17 2 Set Faiza Sonar 1 800 561 8187 PETTE com information itm com 1 800 561 8187 M1 Series DM Instruction Manual 9R000034 IR E O 6409 JAN 2008 Specifications Type and Range All sensors are non isolated D 28 inH20 1 psi D 138 inH20 5 psi D 416 inH20 15 psi D 832 inH20 30 psi
9. ibrated to a maximum discrepancy of 2 5 of the original factory zero This can create a 2 5 offset in all pressure measurements after the recalibration of zero If this procedure generates a new value outside this limit the red backlight will flash to indicate the procedure failed and the previous value was retained www meriam com A meriam process technologies Page 10 of 17 2 Set Feces Somer 1 800 561 8187 www GMD com information itm com M1 Series DM Instruction Manual 9R000034 IR E O 6409 JAN 2008 SPAN First before the M1 can be spanned it must be zeroed Second to Span the M1 a calibration specific pressure must be applied If this Span pressure is known because the unit has been spanned previously skip the next step To determine the Span pressure make sure the pressure sources are still vented i e still at zero then press and hold the O and B keys until F CAL is displayed Immediately following F CAL is the value of the pressure that should be applied The red backlight will flash to indicate the M1 was not spanned since there was no pressure applied Third apply the Span pressure to the M1 and let the pressure stabilize Then press and hold the O and B keys until F CAL is displayed Immediately following F CAL is the value of the pressure that should be applied The display will read during the spanning process The process is complete when the display chan
10. ions DO NOT apply torque to bulkhead fitting that causes the fitting to turn or twist with respect to plastic enclosure To do so will damage the product warranty Changing the Batteries and void the The M1 is powered by three 1 5 volt AA size batteries When the output of the batteries drop below a normal level the display will activate the BAT icon indicating a low battery condition A low battery condition may affect performance and therefore the unit should not be used to measure pressure All three batteries should be replaced To replace the battery locate the battery compartment in the bottom rear of the M1 as shown below www meriam com AA meriam Page 14 of 17 epea www GEER com 2 Serti Feiner comonry information itm com M1 Series DM Instruction Manual 9R000034 IR E O 6409 JAN 2008 Remove the two screws located at the top center and bottom center of the battery cover by turning them counterclockwise until the fully disengaged from the M1 base Lift the cover from the back of the unit Do not remove the pink antistatic foam that is attached to the inside of the battery cover This foam is necessary to properly secure the batteries under specified shock and vibration conditions Remove the batteries by pulling the positive side first straight out of the battery compartment Note the positive and negative battery polarity markings at the bottom of the compartment as shown here
11. nd maximum pressure the M1 has measured is permanently recorded for factory warranty issues For Temperature measurements e Selecting the TEMP mode the F or C icon will display the internal ambient temperature of the M1 o the UNIT key will toggle between F and C The minimum and maximum temperature the M1 has measured is permanently recorded for factory warranty issues www meriam com X meriam process technologies Page 5 of 17 Sot renar somone 1 800 561 8187 www GMD com information itm com M1 Series DM Instruction Manual 9R000034 IR E O 6409 JAN 2008 Liquid Crystal Displa CD The LCD displays the e Pressure or Temperature measurement via large digits e Pressure measurement via bar graph and e Pressure or Temperature engineering units via icons A low battery warning the BAT icon is displayed when the batteries require replacement Approximately 2 hours of run time is available immediately following a low battery warning The bar graph at the bottom of the display always shows a reading of the currently applied pressure as a percent of the full scale of the M1 The LCD incorporates two backlights e a green backlight which is user activated via the BACKLIGHT key and e a red backlight which is automatically activated during an error over range condition During an error or over range condition the red backlight will over ride the green backlight However once the error or over ra
12. nge condition is corrected the green backlight will be restored to its previous state if the backlight auto off timer did not expire The backlight should be turned off when not needed to conserve battery power The backlight feature will be reduced when the M1 is in low battery mode www meriam com A meriam Page 6 of 17 Ce serti Fear somaar 1 800 561 8187 PETTE com information itm com 1 800 561 8187 M1 Series DM Engineering Units Select For pressure measurements mmHg 0 C inHg 0 C mmH20 20 C inH20 20 C kPa mbar bar PSI user 1 optional user 2 optional Instruction Manual 9R000034 IR E O 6409 JAN 2008 To change the pressure units press the UNIT key while in NORMAL mode user 1 and user 2 are reserved for custom user defined units of measure Contact Meriam if this support is required Notes Depending upon the pressure range of the M1 some engineering units may not be available i e they will be skipped When the M1 is turned on it will default to the last selected pressure engineering units For temperature measurements F C To change the temperature units press the UNIT key while in TEMP mode Notes When the TEMP mode is selected the M1 will default to the last selected temperature engineering units Www meriam com Page 7 of 17 7 www GEER com A process technologies 2 Serti Fetzer company inf
13. ormation itm com M1 Series DM Instruction Manual 9R000034 IR E O 6409 JAN 2008 Record Mode The M1 can store up to 240 pressure measurements also called values or points in a single record REC session For maximum flexibility a REC session can be e Automatic the current value is automatically stored every 5 seconds for up to 20 minutes e Manual the current value is stored every time the U key is pressed up to 240 times Both types of REC sessions can store between 1 and 240 measurements The measurement data is preserved in non volatile memory until another REC session is started REC Data In NORMAL mode enter REC Data mode by pressing both the B and F keys until the REC icon begins flashing Second choose the type of REC session To start an automatic REC session press the F key This will delete the previously stored pressure measurement and store the current pressure measurement Then every 5 seconds the current pressure value will be stored To start a manual REC session press the U key This will delete the previously stored session and store the current pressure measurement Then every time the U key is pressed the current pressure value will be stored For both types of REC session the pressure value on the LCD will blank briefly every time a sample is stored and after 240 measurements have been recorded the following step stop and exit REC Data mode will happen automatically Third to s
14. r zero and span The proper primary standards must be available prior to calibrating the unit These standards should meet the accuracy requirements for your company or industry Meriam Process Technologies follows the guidelines established by ANSI NCSL Z540 which requires that the primary standard be 4 times more accurate than the unit under test The field recalibration is not intended to replace the Factory calibration procedure It is intended to trim the factory calibration curve fit to accommodate slight changes in sensor characteristics over time ZERO To Zero the M1 first turn off pressure sources and vent pressure ports to atmosphere Then simultaneously press and hold the F and U keys until F CAL is displayed The process is complete when the display changes from to a zero reading Note The M1 can only be zeroed if the measured zero is within 2 5 of FS of the factory calibrated zero At this point the M1 can be zeroed The above process applies only to gauge and differential pressure instruments To recalibrate the zero on an absolute pressure instrument the applied pressure must be within 10 times the full scale accuracy term of the original factory calibrated zero 200 microns is Meriam s standard vacuum reference for all absolute pressure sensors Note It should be noted that if the zero reference source used to recalibrate any pressure instrument is not accurate the M1 zero can be recal
15. structions are provided on the back of the unit and in the subsequent sections UNIT U Key This key selects the engineering unit of measure desired when the M1 is in NORMAL or TEMP mode www meriam com a meriam process technologies Page 4 of 17 2 ee Fem como 1 800 561 8187 PETTE com information itm com M1 Series DM Instruction Manual 9R000034 IR E O 6409 JAN 2008 1 Zeroing the M1 To Zero the M1 first turn off pressure sources and vent pressure ports to atmosphere Then simultaneously press and hold the F and U keys until F CAL is displayed The display will read during the zeroing process The process is complete when the display changes from to a zero reading Note The M1 can only be zeroed if the measured zero is within 2 5 of FS of the factory calibrated zero limit Further details are provided under Field Recalibration 2 Functional Modes The Digital Manometer supports NORMAL and TEMP modes The NORMAL mode of operation has an additional sub mode referred to as REC or record mode which is described later For Pressure measurements The red backlight will illuminate when the M1 is measuring pressure values outside its calibrated range When the red backlight is on the accuracy of these measurements is uncharacterized Beyond 110 of the calibrated range will be displayed The red backlight will be illuminated in both cases The minimum a
16. top and exit REC Data mode press both the B and F keys All previously stored REC session data will be saved and the M1 will return to NORMAL mode the REC icon will go off This step can be done anytime the REC icon is flashing www meriam com X meriam process technologies Page 8 of 17 mearan commen 1 800 561 8187 PETTE com information itm com M1 Series DM Instruction Manual 9R000034 IR E O 6409 JAN 2008 REC View First set the M1 to NORMAL mode no functional mode icons on Then enter REC View mode by pressing both the B and U keys until the REC icon illuminates Second press the U key to cycle through the stored values The pressure value on the LCD will blank briefly every time a sample i displayed and after all the recorded samples have been viewed will be displayed and the following step stop and exit REC View mode will happen automatically Third to stop and exit REC View mode press both the B and U keys The M1 will return to NORMAL mode the REC icon will go off This step can be done anytime the REC icon is on Auto Shut Off To conserve battery life the M1 will automatically power off after 30 minutes of keypad inactivity www meriam com ZA meriam process techaalogics Page 9 of 17 2 mea rana Soro 1 800 561 8187 www GMD com information itm com M1 Series DM Instruction Manual 9R000034 IR E O 6409 JAN 2008 Field Recalibration The M1 can be recalibrated in the field fo
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