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M2 – Series Smart Manometer
Meriam Process Technologies' M2 Series Products (M200 Smart
Manometer, M200-DI Wet / Wet Smart Manometer, M200LS Lab
Standard Smart Manometer and M201 Rotary Gas Meter Tester)
are microcontroller based devices used to directly measure and
display pressure. Differential (dry/dry), Differential (wet/wet),
Gauge, Compound and Absolute type pressure sensors are
supported. Pressure can be displayed in user-selected engineering
units. Differential units also have a square root flow unit selection.
Data Logging and Leak Test functions are standard.
M2 Series models are available for general purpose use or with
optional Intrinsically Safe certification to the specification shown
below (all models except M200LS).
Optional ATEX rating (not available on M200LS models):
0539
II 1 G; DEMKO 06 ATEX 0615699
Ex ia IIC T4
(Tamb. -5ºC to +50ºC)
IP40
USER'S MANUAL
1
User's Manual 9R000045-F
January, 2011
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Summary of Contents for Meriam Instrument M2
- Page 1 Differential units also have a square root flow unit selection. Data Logging and Leak Test functions are standard. M2 Series models are available for general purpose use or with optional Intrinsically Safe certification to the specification shown below (all models except M200LS).
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Page 2: Safety Information
Safety Information Failure to follow all instructions could result in injury. Read, understand and follow all safety warnings and instructions provided with this product. Also, meet or exceed your employer’s safety practices. 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 affiliates. - Page 3 For customer assistance please call your local Meriam representative or Meriam directly.
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Page 4: Table Of Contents
Table of Contents Certification/Safety/Warnings ........... 1 User Interface ................4 1. Keypad Functions .............. 4 On/Off & (backspace) Key ........... 4 Min/Max & (up) Key ............. 4 Hold & (down) Key............4 Prgm & (enter) KEY ............5 ... - Page 5 Specifications ................23 EC Declaration of Conformity ..........26 Changing the Batteries ............. 27 User Connections ..............29 Service and Calibration ............. 31 Appendix 1: Rotary Gas Meter Tester Instructions ................32 Appendix 2: M200-DI Application Notes ......33 Zeroing for Position Sensitivity ..........33 Zeroing for Static Pressure Effect on Zero ......
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Page 7: Certification/Safety/Warnings
User’s Manual 9R000045-F January, 2011 Certification/Safety/Warnings All M2 Series models are available for general purpose use (non- hazardous areas). Optional Intrinsically Safe (I.S.) certification for hazardous area use is available for all models except the M200LS. General Purpose (G.P.) versions are identified by the name plate located on the rear of the unit under the protective rubber boot. - Page 8 DO NOT replace batteries in explosive or hazardous atmosphere DO NOT use any battery type other than those listed on Dwg. No. 9R000056 “M2 Intrinsically Safe Control Document”. For General Purpose M2 Series Fire/Explosion Hazard. Do not use General Purpose versions in hazardous areas.
- Page 9 For General Purpose M2 Series Substitution of components may impair operation and safety. Disconnect power before servicing. The product should not be powered with a combination of new and old batteries. The product should not be powered with a combination of batteries from different manufacturers.
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Page 10: User Interface
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 11: Prgm & (Enter) Key
the display. The key is used to scroll through programmable registers with the unit in the Program Mode. Once a programmable register is selected the key can be used to edit that register. Prgm & (enter) KEY Puts the manometer into the Program Mode from the Measure Mode. -
Page 12: To Zero Ai (Absolute) Type Manometers
To Zero AI (Absolute) Type Manometers Start with the unit turned OFF and use the following keystroke sequence: Keystroke Display 1. Press ON/OF button. The display briefly shows header name and full scale range in the last engineering unit selected. Then goes into the Measure Mode to display pressure 2. -
Page 13: Units Select
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 14: User Unit Select
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 H O”... -
Page 15: Flow Unit Select
down arrow keys to display the correct value. Top line reads “VALUE=”. 10. Press the PRGM key until the display Bottom line reads “CHANGE?: YES”. changes. See note 1 at bottom of this table. Top line reads “USER UNIT 11. Press the PRGM NAME”. -
Page 16: Damp Rate Select
calculation sheet), any flow unit DP = Differential pressure corresponding to Q, unit must be inches H 0 @20°C Example: If the DP is 25 inches H 0 @20°C when the flow rate is 10,000 units, then the Flow constant is 2,000. Damp Rate Select Adjustable exponential type damping is available to steady the display when measuring pulsating pressure or flow. -
Page 17: User Info Select (Acc., Sw Version, Mfr Date, Sn)
User Info Select (Accuracy, SW version, Mfr date, SN) The User Info Select registers are designed to provide the user with information about the manometer’s hardware and software. This register provides read only information on the sensor’s accuracy, software version, date of manufacture and serial number. -
Page 18: Auto Shut-Off
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. Disabling this feature requires the manometer to being turned off manually using the On/Off key. -
Page 19: Lockout Select
Lockout Select Enabling the Lockout feature prevents unauthorized users from making changes to the configuration of the manometer. To enter the Program Mode when Lockout is active, the user must first enter the “password” (two-digit Lockout Code) within approximately 40 seconds of the display prompt. -
Page 20: Header Name
Header Name Follow the steps below to edit the Header Name. Keystroke Display Top line reads “PROGRAM 1. From the Measure MODE” and bottom line Mode press the PRGM reads “UNITS SELECT”. key. 2. Press the up arrow Bottom line changes to “USER INFO SELECT”. -
Page 21: Contrast Select
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: Keystroke Display Top line reads “PROGRAM 1. -
Page 22: Data Logging
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 23: Leak Test
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 “pressure units per minute” at the conclusion of the test. -
Page 24: Re-Calibration
M2. Note that AI type M200 manometers require Absolute referenced dead weight testers or standards for field recalibration. -
Page 25: Re-Calibration - 1 Point Edit And Start
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 Top line reads “RE-CAL”. 1. With unit OFF, Bottom line reads “EDIT”. press and hold the MIN/MAX key, turn the unit on by pressing the... -
Page 26: Re-Calibration - 5 Point Edit
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. Keystroke Display Top line reads “RE-CAL”. -
Page 27: Re-Calibration - 5 Point Start
Re-Calibration – 5 Point START To begin the 5-point re-calibration procedure, turn the unit OFF and follow the steps below. Keystroke Display Top line reads “RE-CAL”. 1. Press and hold the Bottom line reads “EDIT”. MIN/MAX key and turn the unit on by pressing the ON/OFF key. -
Page 28: Re-Calibration - Restore Factory Defaults
Top line reads “SAVE?”. 10. Use up or down Bottom line reads “NO” or arrow keys to select “YES”. NO or YES when asked “Save?” the Re- Calibration data. Top line reads “RE-CAL”. 11. Press the PRGM Bottom line reads “START”. key at YES to save the Re-Calibration data or Re-cal is complete. -
Page 29: Specifications
Specifications Type, Range and Display Resolution Differential Non-Isolated Types (M200, M200LS, M201): O (0.35 psid) – XX.YYY (M200 only) 10 inH O (1 psid) – XX.YYY 28 inH O (7.21 psid) – XXX.YY 200 inH O (15.0 psid) – XXX.YY (M200 only) 415 inH O (72.1 psid) –... - Page 30 Accuracy: M200, M200-DI, M201 0.05% of Full Scale or optional 0.025% of Full Scale (0.05% F.S. only for M200-DN0010 [10” H O range]) Accuracy: M200LS 0.01% of Full Scale (0.02% F.S. for M200LS-DN0028 [28” H O range]) Accuracy statements include the combined affects of linearity, repeatability, hysteresis and temperature over the specified operating temperature range.
- Page 31 4 each AA alkaline batteries. ATEX certified models require the use of approved batteries to maintain the ATEX certification. Refer to Dwg. No. 9R000056 “M2 Intrinsically Safe Control Document” for a list of batteries approved for hazardous atmospheres. A copy of this drawing accompanies each unit shipped.
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Page 32: Ec Declaration Of Conformity
Manufacturer: Meriam Process Technologies, a Scott Fetzer Company 10920 Madison Avenue, Cleveland, Ohio 44102, USA Product Description: M2 Series, Type PI60B, handheld process control equipment for Hazardous Locations. II 1 G 0539 Intrinsically Safe, Exia Ex ia IIC T4... -
Page 33: Changing The Batteries
Changing the Batteries ATEX certified models require the use of approved batteries to maintain the ATEX certification. Refer to Dwg. No. 9R000056 “M2 Intrinsically Safe Control Document” for a list of batteries approved for hazardous atmospheres. A copy of this drawing accompanies each unit shipped. - Page 34 To install the four batteries: 1) Make sure polarity of battery matches the markings in the compartment. 2) 1st place the (+) end of the battery into the battery slot. 3) Then push in the (-) end of the battery until seated in the bottom of the battery slot.
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Page 35: User Connections
User Connections Connection: 1/8” female NPT, 316L SS. P1 is the high pressure connection. P2 is 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 cover photo). - Page 36 GI, CI and AI models use only the P1 pressure port. The unused P2 port vents the enclosure to atmosphere (a vent plug is factory installed in the P2 port). Connection to the incorrect pressure port on DN or DI differential pressure modules may cause damage to the pressure sensor.
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Page 37: Service And Calibration
Service and Calibration If the M2 cannot 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 38: Appendix 1: Rotary Gas Meter Tester
(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. -
Page 39: Appendix 2: M200-Di Application Notes
Appendix 2: M200-DI Application Notes Zeroing for Position Sensitivity M200-DI (wet/wet) units have liquid filled, sealed sensor assemblies. The fill fluid will apply hydrostatic head pressure to the DP sensor in uniform ways depending on the orientation of the handheld during measurement sessions. Horizontal plane (yaw axis): No zero offset Vertical plane (pitch axis): No zero offset Roll axis: Zero offset occurs. -
Page 40: Appendix 3: M200Ls Lab Standard Smart
Appendix 3: M200LS Lab Standard Smart Manometer The M200LS models provide greater accuracy than the standard M200 for users in controlled or temperate climates. Typical accuracy is ± 0.01% FS over the temperature range of 59º F to 86º F (15º C to 30º C). Accuracy is not certified outside this reduced temperature range.
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