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Meriam Instrument M2 Series User Manual

Smart manometer roots meter tester
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M2 Series
M2 – SERIES USER MANUAL
SMART MANOMETER
ROOTS METER TESTER
Meriam Process Technologies' M2 Series Products (Smart
Manometer
and
Roots
Meter
microcontroller based pressure sensing devices used to
directly measure pressure. Differential, Gauge, Absolute and
Wet/Wet pressure sensors are supported (see Specification
section for supported type and pressure ranges). Pressure can
be displayed in selectable engineering units of measure.
ATEX rating:
0539
II 1 G
Ex ia IIC T4
(Tamb. -5ºC to +50ºC)
DEMKO 06 ATEX 0615699
IP40
www.meriam.com
page 1 of 31
Instruction Manual 9R000045-A
APR2007
Tester
products)
are

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  • Page 1 M2 Series Instruction Manual 9R000045-A APR2007 M2 – SERIES USER MANUAL SMART MANOMETER ROOTS METER TESTER Meriam Process Technologies’ M2 Series Products (Smart Manometer Roots Meter Tester products) microcontroller based pressure sensing devices used to directly measure pressure. Differential, Gauge, Absolute and Wet/Wet pressure sensors are supported (see Specification section for supported type and pressure ranges).

  • Page 2: Table Of Contents

    M2 Series Instruction Manual 9R000045-A APR2007 Table of Contents User Interface ................3 1. Keypad Functions ............... 3 ON/OFF & BACKSPACE KEY ........3 MIN/MAX & UP ARROW KEY........3 HOLD & DOWN ARROW KEY........3 PRGM & ENTER KEY ..........4 BACKLIGHT KEY............

  • Page 3: User Interface

    M2 Series Instruction Manual 9R000045-A APR2007 User Interface 1. Keypad Functions ON/OFF & BACKSPACE KEY Turns the manometer on and enters the unit into the Measure Mode. Pressing the key while in the Measure Mode turns the unit off. It also serves as a backspace key when editing in the Program Mode.

  • Page 4: Prgm & Enter Key

    M2 Series Instruction Manual 9R000045-A APR2007 PRGM & ENTER KEY Puts the manometer into the Program Mode from the Measure Mode. When in the Program Mode, pressing this key selects the programmable register to be edited (with prompt for password if Lockout is set).

  • Page 5: Zeroing The Manometer

    M2 Series Instruction Manual 9R000045-A APR2007 2. Zeroing the Manometer To zero the manometer, first turn off pressure sources and vent pressure ports to atmosphere. The display should read close to zero. Press the MIN/MAX and HOLD keys at the same time and then release.

  • Page 6: Units Select

    M2 Series Instruction Manual 9R000045-A APR2007 Units Select The standard engineering units available on the Smart Manometer are: 0 (@20°C, 60°F and 4°C) Kg/cm mbars Bars O (@ 20°C) inHg (@ 0°C) mmHg (@ 0°C) User Units Flow Units To change the engineering units the manometer should be “ON”...

  • Page 7: User Unit Select

    M2 Series Instruction Manual 9R000045-A APR2007 User Unit Select Engineering units not included in the standard selection can be programmed into the manometer using the Units Select register in the program mode. The value programmed into this register is used to calculate the desired unit of measure. An example of converting to “Feet of H2O”...

  • Page 8: Flow Unit Select

    M2 Series Instruction Manual 9R000045-A APR2007 display the correct value. 10. Press the PRGM key Top line reads “VALUE=”. until the display changes. Bottom line reads “CHANGE?: See note 1 at bottom of YES”. this table. 11. Press the PRGM key.

  • Page 9: Damp Rate Select

    M2 Series Instruction Manual 9R000045-A APR2007 Damp Rate Select Adjustable exponential type damping is available to steady the display when measuring pulsating pressure or flow. The Smart Manometer has a range of damping rates; 0.1, 0.2, 0.5, 1, 2, 5, 10, or 25 seconds.

  • Page 10: User Info Select

    M2 Series Instruction Manual 9R000045-A APR2007 User Info Select The User Info Select registers are designed to provide the user with information on the hardware and software in the manometer. This register provides read only information on the sensor’s serial number, software version and date of manufacture.

  • Page 11: Auto Shut-Off

    M2 Series Instruction Manual 9R000045-A APR2007 Auto Shut-Off Enabling the Auto Shut-Off feature allows the manometer to turn itself off after a user selected period of keypad inactivity. Selectable options include DISABLED, 10 Minutes (which is the factory shipped default), 20 Minutes, 30 Minutes, 45 Minutes and 60 Minutes.

  • Page 12: Lockout Select

    M2 Series Instruction Manual 9R000045-A APR2007 Lockout Select Enabling the Lockout feature prevents unauthorized users from making changes to the configuration of the manometer. To enter the Program Mode, the user must first enter the “password” (two- digit Lockout Code) within approximately 40 seconds when prompted.

  • Page 13: Header Name

    M2 Series Instruction Manual 9R000045-A APR2007 Header Name Follow the steps below to edit the Header Name. Keystroke Display 1. From the Measure Mode Top line reads “PROGRAM press the PRGM key. MODE” and bottom line reads “UNITS SELECT”. 2. Press the up arrow key Bottom line changes to “USER...

  • Page 14: Contrast Select

    M2 Series Instruction Manual 9R000045-A APR2007 Contrast Select The Contrast Select register allows the user to adjust the character contrast of the LCD display to provide the best visibility for the ambient light conditions. To adjust the contrast, follow these steps:...

  • Page 15: Data Logging

    M2 Series Instruction Manual 9R000045-A APR2007 Data Logging Data Logging can be used to record pressure measurements. Two record modes are supported: automatic and manual. In automatic mode, a pressure value is captured every 5 seconds for 20 minutes, resulting in 240 stored values. In manual mode, a pressure value is captured each time the PRGM key is pressed up to 240 values.

  • Page 16: Leak Test

    M2 Series Instruction Manual 9R000045-A APR2007 Leak Test The Leak Test feature allows the user to determine the leak rate in the pneumatic system being monitored. Once configured, Leak Test monitors the measured pressure over time and displays the leak rate in the pressure units per minute at the conclusion of the test.

  • Page 17: Re-Calibration

    M2 Series Instruction Manual 9R000045-A APR2007 Re-Calibration The Manometer can be re-calibrated in the field for zero, span, and linearity. The proper primary standards must be available prior to calibrating the Manometer. These standards should meet the accuracy requirements for your company or industry. Meriam...
  • Page 18 M2 Series Instruction Manual 9R000045-A APR2007 Once a re-calibration has been performed (either 1-point or 5- point) the unit will continue to allow future re-calibrations only with that type of re-calibration. In order to enable the other re- calibration type, the user must first restore the re-calibration data to the factory defaults.

  • Page 19: Re-Calibration - 1 Point Edit And Start

    M2 Series Instruction Manual 9R000045-A APR2007 RE-CALIBRATION – 1 Point EDIT and START To perform a 1-point re-calibration, apply a pressure between 50% and 100% of Full Scale and then follow these steps: Keystroke Display 1. With unit OFF, press and Top line reads “RE-CAL”.

  • Page 20: Re-Calibration - 5 Point Edit

    M2 Series Instruction Manual 9R000045-A APR2007 RE-CALIBRATION – 5 Point EDIT To edit the calibration points for a 5 Point re-calibration follow the steps below. NOTE: If the factory default values are acceptable, skip this section and proceed to the re-calibration 5-Point START procedure.

  • Page 21: Re-Calibration - 5 Point Start

    M2 Series Instruction Manual 9R000045-A APR2007 RE-CALALIBRATION – 5 Point START To begin the 5-point re-calibration procedure, turn the unit OFF and follow the steps below. Keystroke Display 1. Press and hold the Top line reads “RE-CAL”. MIN/MAX key and turn the Bottom line reads “EDIT”.

  • Page 22: Re-Calibration - Restore Factory Defaults

    M2 Series Instruction Manual 9R000045-A APR2007 10. Use up or down arrow Top line reads “SAVE?”. keys to select NO or YES Bottom line reads “NO” or when asked “Save?” the “YES”. Re-Calibration data. 11. Press the PRGM key at Top line reads “RE-CAL”.

  • Page 23: Specifications

    M2 Series Instruction Manual 9R000045-A APR2007 Specifications Type and Range and Display Resolution: Differential Non-Isolated Types: 28 inH2O (1 psid) – XX.YYY 200 inH2O (7.21 psid) – XXX.YY 2000 inH2O (72.1 psid) – XXXX.Y Gauge Isolated Types: 15 psig – XX.YYY 200 psig –...
  • Page 24 M2 Series Instruction Manual 9R000045-A APR2007 Connection: 1/8” female NPT, 316L SS. P1 is the high pressure connection and P2 is the low pressure connection. Differential port shown below. User must use a wrench on the pressure manifold when installing user’s 1/8” NPT fitting. Do not tighten the fitting without using a wrench on the pressure manifold.

  • Page 25: Certification/Safety/Warnings

    M2 Series Instruction Manual 9R000045-A APR2007 Certification/Safety/Warnings The following defines the certification and area classification of the Manometer product. Note the following WARNINGS and requirements: • Substitution of components may impair Intrinsic Safety • To prevent ignition of flammable or explosive atmospheres, disconnect power before servicing.

  • Page 26: Changing The Batteries

    M2 Series Instruction Manual 9R000045-A APR2007 Changing the Batteries Adherence to the Specifications and Certification/Safety/Warnings sections of this manual shall be enforced when changing batteries. The manometer is powered by four, 1.5 volt AA size batteries. When the output of the batteries under load drops, the display will alternate between “LOW POWER DETECT”...
  • Page 27 M2 Series Instruction Manual 9R000045-A APR2007 Install the four batteries by sliding them into the bottom of the battery slots, making sure the polarity markings on the batteries align with the markings in the compartment. The battery compartment has stand offs molded into the side of the compartment.

  • Page 28: User Connections

    M2 Series Instruction Manual 9R000045-A APR2007 User Connections Connection: 1/8” female NPT, 316L SS. P1 is the high pressure connection and P2, the low pressure connection. The pressure connections are marked in two locations, identified as P1 and P2. One location is the top of the keypad (shown on page 1).
  • Page 29 M2 Series Instruction Manual 9R000045-A APR2007 “G” and “A” models have only one used pressure port. The unused port vents the enclosure/sensor P2 to atmosphere (a sintered plug or vent is installed in either P1 or P2 as appropriate). Differential...

  • Page 30: Contact Information

    M2 Series Instruction Manual 9R000045-A APR2007 Contact Information If the Manometer can not be zeroed, recalibrated 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.

  • Page 31: Roots Meter Tester Instructions

    (rotary vane) meters in the field. This model uses the same pressure sensor technology and packaging as other M2 Series products but uses custom firmware to provide a mathematically averaged pressure from test start to test stop. The user determines the test duration.

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