Meriam Meriam M203-AI0017 Altimeter Indicator - Meriam
Contents
1. Note that the User Adjusted Zero feature will not accept entries in altitude units FEET or METERS When the current engineering unit is FEET the User Adjusted Zero function will automatically prompt for an entry in Inches of Mercury 0 C When the current engineering unit is METERS the User Adjusted Zero function will automatically prompt for an entry in Millimeters of Mercury 0 C 3 Program Mode The Program Mode is used to configure the manometer for Measure Mode operation After the PRGM key is pressed in Measure Mode the top line of the display reads PROGRAM MODE The bottom line reads UNITS SELECT Press the A or V arrow keys to scroll through the Program Mode to the desired register The configurable registers found in the Program Mode are Units Select Damp Rate Select User Info Select Contrast Select Data Logging Leak Test and Exit Press the PRGM key to select any of these configurable registers The manometer can be put into Program Mode at any time during Measure Mode operation by pressing the PRGM key If Lockout is set the correct code must be entered when prompted see the User Info Lockout section of this manual for more information on Lockout 8 info Meriam Direct ca Meriam Direct a 1 800 868 7495 Units Select The standard units available on the M203 are Inches of Mercury at 0 C in Hg 0 C absolute Millimeters of Mercury at 0 C mm Hg 0 C absolute PSI absolute Mbars2. NOTICE 1 Altitude is the default measurement when ALT IAS Mode is active 2 If ALT IAS Mode was active upon manual or automatic shut off ALT IAS Mode will be restored upon cycling power and altitude will be displayed 3 When the M203 is displaying air speed and power is turned off manually or automatically Program Mode is entered or the Tare key is pressed the unit will be returned to altitude display once power is cycled or the unit is returned to Measure Mode This is a feature designed to prevent errors in air speed measurement necessary because of the tare function employed on barometric pressure to arrive at air soeed measurements Barometric pressure fluctuates with changes in weather conditions Reverting to altitude measurement upon powering down entering Program Mode or pressing the Tare button forces a new tare value to be taken prior to each air speed measurement session 11 info Meriam Direct ca Meriam Direct a 1 800 868 7495 Damp Rate Select Adjustable exponential type damping is available to steady the display when measuring pulsating pressures The M203 has a range of damping rates 0 1 0 2 0 5 1 2 5 10 or 25 seconds Damping is done by averaging new data from the pressure sensor against previously collected data The microprocessor collects data from the sensor every 0 1 seconds The display updates every 0 5 seconds showing the current 0 1 second pressure reading When set at 25 seconds the dis
3. To set up the M203 for ALT IAS Mode use the following steps 1 Press the PRGM key Top line reads PROGRAM MODE and the bottom line reads UNIT SELECT 2 Press the PRGM key Top line reads UNITS SELECT and bottom line shows current engineering unit 3 Press the A or W arrow Top line reads UNITS key until ALT IAS is SELECTED and bottom displayed line reads ALT IAS 4 Press the PRGM key Top line reads UNITS SELECT and bottom line reads ENGLISH 5 a If ENGLISH units are Top line reads UNITS desired press the PRGM SELECT and bottom line key reads KNOTS Note the For METRIC units Go To altitude unit FEET is Step 6 associated with Knots b If KNOTS unit are desired Go To Step 7 For MPH units Go To Step 5 c 5 c If MPH units are Top line reads UNITS desired press the or SELECT and bottom line arrow key until MPH is reads MPH Note the displayed altitude unit FEET is associated with MPH 10 info Meriam Direct ca Meriam Direct a 1 800 868 7495 6 If METRIC units are Top line reads UNITS desired press the A or WV SELECT and bottom line arrow key reads METRIC Units are set to METERS and km h 7 Press the PRGM key Top line reads PROGRAM MODE and bottom line reads UNITS SELECT 8 Press the lt key Manometer returns to Measure Mode displaying Altitude
4. 900 mm Hg Indicated Air Speed Accuracy NIST traceable 0 028 F S F S 900 mm Hg Accuracy statements include the combined effects of temperature non linearity repeatability hysteresis and resolution Temperature Storage 40 C to 60 C 40 F to 140 F Operating 20 C to 50 C 4 F to 122 F Media Compatibility Al Absolute pressure sensors for use with gases and liquids compatible with 316L SS Pressure Limits Al units 77 PSIA 4000 mm Hg Abs Connection 1 8 female NPT 316L SS P1 is the pressure connection P2 is not accessible factory plugged with metal disc User must use 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 Failure to use a wrench on the manifold will damage the plastic enclosure and void warranty No torque should be applied to the manifold with respect to plastic enclosure 25 info Meriam Direct ca Meriam Direct a 1 800 868 7495 Battery Type 4 each AA alkaline Battery Operation gt 100 hours continuous use 1 year shelf life auto power off programmable at disabled 10 20 30 60 or 90 minutes Enclosure 6 9 x 3 8 x 2 3 Polycarbonate Permanently Static Dissipative ESD Protection Enclosure with Boot 7 2 x 4 2 x 2 5 Rating IP40 Changing the Batteries DANGER Fire Explosion Hazard This instrument is not intrinsically s
5. absolute Bars absolute kPa absolute Torr absolute ALT IAS selecting this unit gives access to English units knots MPH and Feet or Metric km h and Meters To change the engineering units the manometer should be ON and in Measure Mode Then follow these steps 1 Press the PRGM key Top line reads PROGRAM MODE and bottom line reads UNITS SELECT 2 Press the PRGM key Top line reads UNITS SELECT and bottom line shows current engineering unit 3 Press the A or V arrow key Engineering units on bottom until desired engineering unit is line of display change displayed 4 Press the PRGM key to Top line reads PROGRAM select the engineering unit MODE and bottom line reads UNITS SELECT Bottom line reads EXIT 6 Press the PRGM key Display returns to Measure Mode in new engineering unit 9 info Meriam Direct ca Meriam Direct a 1 800 868 7495 ALT IAS Altitude Indicated Air Speed Mode The model M203 is capable of displaying altitude feet or meters based on U S Standard Atmosphere 1962 tables and air speed knots MPH or km h The ALT IAS Mode is selected from Program Mode in the Units Select menu Once ALT IAS Mode is selected the M203 s default measurement is altitude Pressing the Tare key nulls the prevailing barometric pressure and converts the display to air speed indication To revert back to altitude the Tare key is toggled again
6. 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 Process Technologies follows the guidelines established by ANSI NCSL Z540 1 1994 which requires that the primary standard be four times more accurate than the unit under test The re calibration is not intended to replace the Factory Laboratory Calibration Procedure It is intended to correct the curve fit if the actual sensor characteristics change slightly over time For sensors up to 200 PSI Meriam recommends a 0 0015 of reading deadweight tester If calibrating using inches or millimeters of mercury be sure to match the reference temperature of mercury in both the M203 and the deadweight tester The reference temperature for these units in the M203 is 0 C 1 point within upper 50 of Full Scale 5 point nominal values of 0 25 50 75 amp 100 of Full Scale and restore factory default re calibration options are offered For the 5 Point re calibration points 2 3 and 4 can be adjusted within 1 of reading around the nominal values Point 5 can be adjusted within 1 of reading around nominal Point 1 is fixed at zero For example for a 900 mm Hg Abs sensor nominal 17 PSIA Point 2 25 can be edited form 216 to 234 mm Hg Abs Point 5 100 can be edited from 891 to 900 mm Hg Abs The unit can only be re calibrated if the calibration point
7. or maintaining this product must satisfy themselves that each intended application is acceptable Failure to follow all instructions could result in injury Safety Warnings The table below defines the safety symbols signal words and corresponding safety messages used in the manual to identify potential hazards and are intended to warn persons about hazards that could result in personal injury or equipment damage This is the Read Instruction Manual symbol This symbol indicates that you must read the instruction manual This is the Safety Alert symbol This symbol indicates a WARNING Warnings alert you to actions that can cause personal injury or pose a physical threat Please read these carefully This is the Safety Glasses symbol This symbol indicates that you must wear approved safety glasses during the task This is the Safety Gloves symbol This symbol indicates that you must wear approved safety gloves during the task ke ei D A DANGER Indicates a potentially hazardous situation which if not avoided will result in death or serious injury Indicates a potentially hazardous situation which if not avoided could result in death or serious injury Indicates a potentially hazardous situation which if not avoided could result in minor or moderate injury Indicates information essential for proper product NOTICE installation operation or maintenance Information in this document is subject to change without n
8. the right most digit to proceed 7 To perform the 5 point re cal press the up arrow key until START is displayed on the bottom line OR To exit without performing the 5 point re cal press the left arrow key Meriam Direct Top line reads RE CAL Bottom line reads EDIT Top line reads CAL POINT 1 Bottom line displays the cal point value Bottom line displays the cal point value The cursor flashes at the first position while the value is changed then moves to the right oosition when the right arrow ke Top line reads CAL POINT 2 3 4 5 Bottom line displays the cal point value Top line reads CAL POINT 2 3 4 5 Bottom line displays the cal point value Top line reads RE CAL Bottom line reads EDIT Top line reads RE CAL Bottom line START Continue with 5 Point Re calibration procedure at step 3 on next page OR Returns to Measure Mode 22 1 800 868 7495 RE CALIBRATION 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 unit on by pressing the ON OFF key 2 Press the up arrow key until Top line reads RE CAT START is displayed on the Bottom line reads START bottom line 3 Press the PGRM key Top line reads RE CAL Bottom li
9. this key repeatedly will return the user to the Measure Mode and then shut off the manometer MIN MAX SUR A KEY In the Measure Mode activates the Min Max function of the manometer When activated the minimum value is displayed on the upper left of the display and the maximum value on the upper right This key also deactivates and resets this function The A key is used to scroll through the programmable registers when the unit is in the Program Mode Once a programmable register is selected the A key can be used to edit that register TARE amp DOWN Y KEY In the Pressure Measure Mode toggles on off the Tare function The Tare lied pressure and sets the display value to 0 With Tare activated the letter T appears in the lower left of the display In the ALT IAS Measure Mode selected from Program Mode under Units Select menu the Tare button toggles between ALTITUDE function and AIR SPEED function The W key is used to scroll through programmable registers when the unit is in Program Mode Once a programmable register is selected the W key can be used to edit that register 2 info Meriam Direct ca Meriam Direct a 1 800 868 7495 PRGM amp ENTER gt 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 After the register has been edited pressing the PRGM key enters t
10. 45 Minutes and 60 Minutes Disabling this feature limits the manometer to being turned off by using the ON OFF key only To configure auto shut off follow these steps 1 Follow steps 1 6 in Top line reads AUTO the user Info Select SHUT OFF and table bottom line reads ENTER TO SELECT 2 press the PRGM Top line reads AUTO key then the up or SHUT OFF and down arrow keys until bottom line toggles to the desired shut off DISABLED 10 time is shown 20 30 45 and 60 minutes 3 Press the PRGM Desired Auto Shut Off key time is selected top line reads AUTO SHUT OFF and bottom line reads ENTER TO SELECT 4 Press the left arrow Returns to Measure key three times Mode NOTICE The Auto Shut Off timer is suspended during Data Logging and Leak Test sessions to prevent accidental loss of information Auto Shut Off is re instated after completion of Data Logging or Leak Test sessions 14 info Meriam Direct ca Meriam Direct a 1 800 868 7495 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 Failure to enter the correct two digit code within approximately 40 seconds will return the unit to Measure Mode Any two digit numeric
11. ERO RANGE ERROR message appears and the manometer will not zero Contact the factory for support in this case 5 info Meriam Direct ca Meriam Direct z 1 800 868 7495 2 To zero the manometer using Factory Zero start with the unit turned ON and in Measure Mode Then use the following keystroke sequence Keystroke Display 1 Press MIN MAX and TARE Top line of display reads keys at the same time See ZEROING SOURCE Bottom Figure 1 above line of display reads REF TO ABS ZERO 2 Press A or V arrow key until Bottom line of display reads desired zero function is shown FACTORY ZERO on the bottom line 3 Press the PRGM key Zeroing is complete when unit returns to Measure Mode NOTICE The Factory Zero feature is intended for comparison purposes only Factory Zero should not be used as a reference for actual pressure measurement because zero drift occurring after shipment would not be accounted for Use Referenced to Absolute Zero or User Adjusted Zero options when re zeroing is necessary 3 To zero the manometer using User Adjusted Zero start with the unit turned ON and in Measure Mode Then use the following keystroke sequence Keystroke Display 1 Apply a known accurate e source This may be r ue atmospheric pressure from a reference barometer 6 info Meriam Direct ca Meriam Direct a 1 800 868 7495 info Meriam Direct ca 2 Press MIN MAX and TARE keys at the same time See Figur
12. L Bottom line reads EDIT Top line reads RE CAL Bottom line reads START Top line reads RE CAL START Bottom line reads 1 POINT Top line reads CAL POINT and bottom line displays the cal point value Bottom line displays the cal point value The cursor flashes at the first position while the value is changed then moves to the right position when the right arrow key is pressed Top line reads APPLY Bottom line displays the CAL POINT value Top line reads RE CAL Bottom line reads START Manometer has been recalibrated 8 Press the left arrow key Returns to Measure Mode info Meriam Direct ca Meriam Direct 1 800 868 7495 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 info Meriam Direct ca 1 With unit OFF press and hold the MIN MAX key turn the unit on using the ON OFF key Press the PGRM key 3 Press the up down arrow keys to edit the selected digit Use the change the cursor position Note For 0 go directly to step 4 4 Press the right arrow key while on the right most digit to proceed 5 Repeat steps 3 and 4 for CAL POINTS 2 3 4 and 5 6 After ending CAL POINT 5 press the right arrow key while on
13. User s Manual 9R122 A June 2010 M203 Altimeter Indicated Air Speed Tester USER S MANUAL Altimeter ww Alr Speed The Meriam Process Technologies Meriam M203 Altimeter Indicated Air Speed Tester is a microprocessor based pressure sensing device used to measure pressure 0 900 millimeters mm Hg relative to absolute zero The handheld is NIST traceable When used in Pressure Measure Mode pressure can be displayed in a variety of engineering units Select the ALT IAS engineering unit and the M203 converts to Altitude Mode for checking altimeter instruments Pressing the TARE button from Altitude Mode changes the M203 to Air Speed Mode for checking air speed instruments A timed leak test function is available for Pressure Altitude and Air Soeed Measure Modes Other features include a Min Max capture selectable damp rates and field re calibration AN meriam info Meriam Direct ca Meriam Direct a 1 800 868 7495 Safety Information 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 It is not possible for Meriam to identify all foreseeable uses misuses therefore all persons involved in commissioning using
14. afe DO NOT service in areas that may contain flammable gas or vapors combustible dusts or ignitable fibers where an unintended spark can cause a fire explosion A CAUTION Electrical Arc Hazard Failure to operate the product with the battery cover in place and properly secured could result in minor or moderate injury The product 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 and REPLACE BATTERY Low battery power may affect performance The product should not be used to measure pressure in this condition All four batteries should be replaced To replace the battery locate the battery compartment at the bottom rear of the manometer as shown here Remove the two screws on either side of the battery cover by turning them counterclockwise until they are fully disengaged from the manometer base Lift the battery cover from the back of the product case Remove the batteries by pulling the positive side first straight out of the battery compartment Note the positive and negative info Meriam Direct ca Meriam Di recta 1 800 868 7495 battery polarity markings at the bottom of the compartment as shown here 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 bottom of the battery slot 3 Then pus
15. code can be programmed The factory Lockout Code of 00 which is the default as shipped from the factory disables the Lockout To set the Lockout Code follow these steps Keystroke Display 1 From the Measure Mode press the PRGM key If the Lockout is set enter the correct password when prompted 2 Press the up arrow key twice 3 Press the right arrow key then the up arrow key four times 4 Press the right arrow key then press the up arrow keys to change the first digit Press the right arrow key to proceed 5 Press the right arrow key when the desired code is set Lockout Is activated 6 Press the left arrow key twice info Meriam Direct ca Meriam Direct z Top line reads PROGRAM MODE and bottom line reads UNITS SELECT Bottom line reads USER INFO SELECT Top line reads LOCKOUT CODE and bottom line reads ENTER TO SELECT Bottom line shows the old Lockout Code The cursor flashes at the first position while the value is changed the cursor moves to the right position once the right arrow key is pressed Top line reads LOCKOUT CODE and bottom line reads ENTER TO SELECT Returns to Measure Mode 15 1 800 868 7495 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 a
16. e 1 above 3 Press A or V arrow key until desired zero function is shown on the bottom line 4 Press the PRGM key 5 Press any of A or V arrow key or the PRGM key to begin editing Example set current pressure value to 29 5 in Hg 0 C Abs 6 Press the A or V arrow key to set the first digit to O Using the A arrow key the character sequence is 0 9 negative decimal point The sign is used if your location is below sea level 7 When the User Adj Value is correct press the PRGM key 7 Meriam Direct z Top Line of display reads ZEROING SOURCE Bottom line of display reads REF TO ABS ZERO Bottom line of display reads USER ADJ ZERO Top line of display shows the current non zero compensated pressure value Bottom line of display shows the same value along with the engineering unit Top line of display continuously updates Bottom line of display data is ready for editing the first character location is blinking Current Xxx Xx Oxx xx INHG Cursor flashes to the right of 0 1 800 868 7495 If an error is made use the back space lt key to move the cursor back to the incorrect digit Press the UP A or DOWN arrow keys to correct the value 8 Continue this process until the display reads as shown at right Current xxx xx 029 50 INHG 9 Press the PRGM key to Zeroing is complete when enter the final value unit returns to Measure Mode
17. e conclusion of the test The maximum configurable leak test period is 1440 min 1 day Pressing any key during the leak test aborts the test To enable Leak Test follow these steps Keystroke Display 1 From the Measure Mode press Top line reads PROGRAM MODE the PRGM key and bottom line reads UNITS SELECT Bottom line reads LEAK TEST 3 Press the PRGM key Top line reads LEAK TEST and bottom line reads CONFIGURE 4 Press the PRGM key Top line reads Leak Test Period amp bottom X X MIN 5 Use the A V amp P keys to input Bottom line reads desired period test period Ex 20 0 MIN 6 Press the PRGM key Top line reads LEAK TEST and bottom line reads CONFIGURE 7 Press the A key once Top line reads LEAK TEST and bottom line reads PRGM TO START 8 Press the PRGM key Top line displays MIN MAX pressure values at left right Bottom line reads the current pressure value and units At end of test period top line displays the leak rate in units per minute Bottom line shows the current pressure reading 9 Press the PRGM key Return to Measure Mode NOTICE The Auto Shut Off timer is disabled for Leak Test sessions Be sure to end the session to re enable the Auto Shut Off timer 19 info Meriam Direct ca Meriam Direct a 1 800 868 7495 Re Calibration The Manometer can be re calibrated in the field for zero span and linearity
18. es Bottom line reads DATA LOGGING 3 Press the PRGM key Top line reads DATA LOGGING and bottom line reads RECORD 4 Press the PRGM key Top line reads RECORD MODE and bottom line reads AUTO or MANUAL 5 Press the PRGM key at Top line reads AUTO to start automatic RECORDING X and bottom logging or at MANUAL to start line reads XX XX UNITS manual logging mode AUTO records value every 5 seconds Manual records value each time PRGM key is pressed 6 To stop recording values at Top line reads DATA any time press the lt key LOGGING and bottom line reads RECORD 7 To access recorded values Top line reads DATA press the A key LOGGING and bottom line reads VIEW 8 To view recorded values Top line reads DATA LOG 1 press the PRGM key and bottom line displays the value Continue pressing the lt key to view all values 9 Press the lt key 3 times Returns to Measure Mode NOTICE The Auto Shut Off timer is disabled for Data Logging sessions Be sure to end the session to re enable the Auto Shut Off timer 18 info Meriam Direct ca Meriam Direct a 1 800 868 7495 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 altitude or air soeed over time and displays the leak rate in units per minute at th
19. h in end of the battery until it is seated in the bottom of the battery slot The battery compartment has stand offs molded into the side of the compartment When a battery is installed with the polarity reversed the built in standoffs prevent the negative battery terminal from contacting the positive terminal in the battery compartment The product will not power up when a battery is installed this way Should this happen simply reverse the battery to align the polarity With the batteries secured in the battery compartment replace the compartment cover The cover has only one correct orientation The WARNING DO NOT OPEN IN EXPLOSIVE ATMOSPHERE Statement on the battery cover must be visible and aligned in the middle of the product case Secure the cover by applying a clockwise torque of 1 6 to 1 8 in lbs Do not over tighten To prevent internal damage to circuitry do not wh AMA substitute screw lengths for the factory supplied screws info Meriam Direct ca Meriam Direct a 1 800 868 7495 Service and Calibration lf the M203 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 DO NOT send any unit in for service without first contacting Meriam for a Return Material Authorization RMA number If thi
20. he new setting into the manometer s non volatile memory This key also acts as a forward space key when editing user inputs such as the header name BACKLIGHT KEY The BACKLIGHT key represented by the standard light bulb symbol toggles the display backlight between on and off NOTICE The backlight consumes additional battery energy Turn the backlight off when it is not needed to optimize battery life 3 info Meriam Direct ca Meriam Direct a 1 800 868 7495 2 Zeroing the Manometer The M203 Precision Smart Manometer is a stable and precise instrument However on occasion the M203 should have a new zero taken This is done to remove zero drift that can occur since the manometer was last zeroed The M203 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 outside this limit a ZERO RANGE ERROR message appears and the manometer will not zero The M203 provides three mechanisms for re zeroing 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 Factory Zero This method restores the calibration curve to the original zero taken at the factory Note that this feature is intended for comparison purposes and should not be used for rea
21. just the contrast follow these steps 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 A key three times Bottom line reads CONTRAST SELECT 3 Press the PRGM key Top line reads CONTRAST SELECT Bottom line shows a numerical value 4 Press the A org keys to LCD lightens or darkens increase or decrease the depending on the value set contrast value A low number gives maximum contrast and a high number gives minimum contrast 5 Press the PRGM key Top line reads PROGRAM MODE and bottom line reads UNITS SELECT 6 Press lt key Returns to Measure Mode lf an error is made during the contrast adjustment pressing the lt key returns the display to the previous contrast setting 17 info Meriam Direct ca Meriam Direct a 1 800 868 7495 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 The data collected during a logging session can be viewed upon completion Keystroke Display Top line reads PROGRAM press the PRGM key MODE and bottom line reads UNITS SELECT 2 Press the A key five tim
22. l pressure measurement as any zero drift since shipment will not be accounted for 3 User Adjusted Zero This method allows the user to enter any pressure value when a known reference is applied for example the local barometric pressure reading The manometer will compare its actual measured value with the entered value and calculate a new zero reference based on the offset 4 info Meriam Direct ca Meriam Direct a 1 800 868 7495 1 To zero the manometer using Referenced to Absolute Zero start with the unit turned OFF and use the following keystroke sequence 1 Press ON OFF button The display briefly shows the header name and full 2 Connect the M203 toa scale range in the last vacuum source capable of 100 engineering units selected microns absolute or less The manometer then goes into the Measure Mode 3 Pull a full vacuum showing the pressure and engineering unit Display should read close to zero See note on next page 4 Press MIN MAX and TARE Top line of display reads keys at the same time See ZEROING SOURCE Figure 1 below Bottom line of display reads REF TO ABS ZERO 5 Press the PGRM key Top line of display reads ZERO IN PROGRESS while bottom line counts down from 9 Zeroing is complete when unit returns to Measure Mode Figure 1 NOTE The M203 can be zeroed only if the new applied zero is within 1 FS of the original factory calibration zero If outside this limit a Z
23. ne reads 1 POINT 4 Press the up arrow key until Top line reads RE CAL 5 POINT is displayed on the START bottom line Bottom line reads 5 POINT 5 Press the PGRM key Top line reads POINT 1 ZERO Bottom line displays live applied pressure 6 Vent P1 and P2 ports to Unit takes new zero Top line atmosphere and reads POINT 1 ZERO simultaneously press the Bottom line displays live MIN MAX and HOLD keys applied pressure POINT 1 then release has been taken 7 Press the right arrow key Top line reads POINT 2 while on the right most digit to APPLY proceed Bottom line displays the cal point value to apply 8 Apply the indicated Top line reads POINT 3 calibration point pressure APPLY using external pressure Bottom line displays the cal standards After pressure is point value to apply stable press the right arrow key 9 Repeat step 8 for CAL Top line reads POINT 4 5 POINTS 4 and 5 APPLY Bottom line displays the cal point value 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 Re YES Calibration data 23 info Meriam Direct ca Meriam Direct a 1 800 868 7495 11 Press the PRGM key at YES to save the Re Calibration data or at NO to exit without saving 12 Press the left arrow key Returns to Measure Mode YES to save the Re Calibration data
24. nstrument is not intrinsically safe DO NOT use in areas that may contain flammable gas or vapors combustible dusts or ignitable fibers where an unintended spark can cause a fire explosion amp 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 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 he product should not be powered with a combination of batteries from different manufacturers User must use a wrench on the pressure NOTICE manifold when installing user s 1 8 NPT fitting Do not tighten the fitting without using a wrench on the pressure manifold Failure to use a wrench on the manifold will damage the plastic enclosure and void warranty No torque should be applied to the manifold with respect to plastic enclosure info Meriam Direct ca Meriam Direct z 1 800 868 7495 User Interface 1 Keypad Functions ON OFF amp BACK lt KEY l 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 The lt key takes the user out of a programmable register without changing the previous setting Pressing
25. or at NO to exit without saving RE CALIBRATION Restore Factory Defaults To restore the re calibration data to the factory defaults follow these steps Keystroke Display Top line reads RE CAL 1 With unit OFF press and hold the MIN MAX key turn the unit on using the OFF key then release Press the up arrow key twice Press the PRGM key Use the up and down arrow keys to select YES or NO when asked to restore defaults Press the PRGM key 6 Press the left arrow key Returns to Measure Mode Bottom line reads EDIT Top line reads RE CAL Bottom line reads RESTORE DEFAULTS Top line reads RESTORE DEFAULTS Bottom reads YES or D NO Top line reads RESTORE DEFAULTS Bottom reads YES or D NO Top line reads RE CAL Bottom line reads RESTORE DEFAULTS Factory defaults have been restored info Meriam Direct ca Meriam Direct 1 800 868 7495 Specifications Type Range and Display Resolution 17 4 3 psia 900 00 mmHg XX YYY XXX YY Minimum Maximum Display Values Altitude 2000 0 to 36 000 0 Feet 609 6 10 972 8 Meters Indicated Air Speed 0 496 4 Knots approx 0 571 3 MPH approx 0 919 4 km h approx Note the barometric pressure value at time the TARE button is activated will determine the maximum indicated air speed Altitude Accuracy NIST traceable 0 02 F S F S
26. otice Check the Meriam web site www meriam com for the latest manual revision info Meriam Direct ca Meriam Direct a 1 800 868 7495 Table of Contents Certification Safety WarningsS aannannnannennnennnnnnnnnnnnnnnennrnnenenenne 1 User Interface Yc osgeb iaeeteesee iesse eebe egene 2 1 Keypad Functions cccccceccecceceeseeseesuueueeueeuueeeueausaueaueueeauenss 2 ON OFF SB CY EE 2 MAINA amp UF A KEY EE 2 TARE S DOWN V IER 2 PROM amp ENTER t 3 SE LE E E E EE 3 2 Zeroing the Manometer snnaonnaonnanrnnrrnnrrnnrennrrnnrennrennrrnnrrnne 4 O Program WO eieiei eg dE 8 Uas E cee EE ea ee ee eee 9 ALT IAS Altitude Indicated Air Speed Mode 10 Damp Rate Seleti riranna E REE 12 User Info Select Accuracy SW version Mfr date GN 13 EE 14 eye lt a ole EE 15 FICAG IN Ali Cena ceceecssteeieice sess ecco ewan EE E Eae 16 Contrast E 17 Daa COGNO eee E 18 A TO ete tcp cetera ts E E eee 19 PROP ee tel ME 20 RE CALIBRATION 1 Point EDIT and GIANT 21 RE CALIBRATION 5 Point EDIT 22 RE CALIBRATION 5 Point START E 23 RE CALIBRATION Restore Factory Defaults ccecceceeeeeeeeeeeenes 24 SEENEN EE 25 Changing the Batteries ccccccccsecccececeeeeseseeseeceeeeseeesaneesees 26 Service and CGalbraton 28 info Meriam Direct ca Meriam Direct a 1 800 868 7495 Certification Safety Warnings User s Manual 9R122 A June 2010 A DANGER Fire Explosion Hazard This i
27. ow the steps below To configure a User Info Select register follow the steps shown on the following page 1 From the Measure Mode Top line reads PROGRAM press the PRGM key MODE and bottom line reads UNITS SELECT Bottom line changes to twice USER INFO SELECT accuracy 4 Press the Aarrow key Software version no shown 5 Press the Aarrow key Manufacture date shown 6 Press the Aarrow key Top line reads AUTO See instructions to set SHUT OFF and bottom AUTO SHUT OFF later in line reads ENTER TO this manual SELECT 7 Press the A arrow key Bottom Line shows Serial No 8 Press the A arrow key Top line reads LOCKOUT See instructions for using CODE and bottom line LOCKOUT later in this reads ENTER TO manual SELECT 9 Press the lt arrow key Top line reads HEADER See instructions for editing NAME and bottom line the Header later in this reads MERIAM The manual cursor flashes at bottom left 10 Press the lt arrow key Top line reads PROGRAM to go back to USER INFO MODE and bottom line SELECT screen reads USER INFO SELECT 13 info Meriam Direct ca Meriam Direct a 1 800 868 7495 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
28. play updates every 0 5 seconds with the average of the previous 25 seconds readings Therefore it takes up to 25 seconds from the time pressure is applied until the manometer displays the full scale applied pressure Min Max display updates every 0 1 seconds To set the damp rate Keystroke Display 1 Enter Program Mode by pressing the PRGM key 2 Press the A key 3 Press the PRGM key 4 Press the A or WV keys until the desired damp rate is displayed on the bottom line 5 Press the PRGM key 6 Press the V key 7 Press the PRGM key info Meriam Direct ca Meriam Direct Top line reads PROGRAM MODE Bottom line reads UNITS SELECT Bottom line reads DAMP RATE SELECT Top line reads DAMP RATE SELECT Bottom line shows current value Bottom line shows damp rate settings in seconds Top line reads PROGRAM MODE Bottom line reads UNITS SELECT Bottom line reads EXIT Returns to Measure Mode 12 1 800 868 7495 User Info Select Accuracy SW version Mfr date SN 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 accuracy software version date of manufacture and serial number It also allows the user to edit the Auto Shut Off Lockout and Start Up Header Name features To access the User Info Select registers foll
29. rrow key Bottom line changes to twice USER INFO SELECT 3 Press the PRGM key Bottom line shows serial number 4 Press the up arrow key five Top line reads HEADER times NAME and bottom line reads MERIAM The cursor flashes at bottom left 5 If header is correct press Top line reads PROGRAM backspace key If editing is MODE and bottom line reads desired proceed to Step 7 USER INFO SELECT 6 Press the left arrow key Returns to Measure Mode 7 Press the up or down arrow Displays a number between 0 keys to set the correct alpha and 9 a letter from A to Z or numeric value a blank space 8 Press the right arrow key to Cursor advances one space to accept entry right 9 Repeat steps 8 and 9 until the desired Header is shown 10 If an error is made press the back arrow key until the cursor is over the incorrect value Follow Step 8 to correct Press the right arrow key to advance the cursor without changing the values 11 When the Header is Top line reads PROGRAM complete press the PRGM key MODE and bottom line reads until header accepted UNITS SELECT 12 Press the left arrow key Returns to Measure Mode 16 info Meriam Direct ca Meriam Direct a 1 800 868 7495 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 ad
30. s are within 5 times the accuracy of the original factory calibration e g 0 05 accuracy the point limit is 0 25 of Full Scale If the re calibration procedure generates a new value outside this limit the procedure will fail In this case the unit would need to be returned to the factory for service 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 20 info Meriam Direct ca Meriam Direct a 1 800 868 7495 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 hold the MIN MAX key turn the unit on by pressing the ON OFF key then release MIN MAX 2 Press the up arrow key until START is displayed on the bottom line 3 Press the PRGM key 4 Press the PRGM key 5 Press the up down arrow keys to edit the selected digit Use the left right arrow keys to change the cursor position Value entered must be 50 100 of FS 6 Press the right arrow key while on the right most digit to proceed 7 Apply the input pressure indicated using an appropriate reference standard press PRGM key Top line reads RE CA
31. s number has not been obtained and clearly marked on the return packaging the unit will be returned at the shipper s expense An RMA number will be provided by the Meriam Repair Department when you call fax or e mail your information Certification for Non Hazardous Materials will also be required The RMA number must accompany all incoming packages to insure proper tracking processing and repair work To assist us in processing your service request please have the Model AS serial Number of the unit available when you call This information is located on the product label label Meriam Process Technologies 10920 Madison Ave Cleveland H 44102 Ph 216 281 1100 FAX 216 281 0228 E mail sales meriam com Web www meriam com info Meriam Direct ca Meriam Direct a 1 800 868 7495 For customer assistance please call your local Meriam representative or Meriam directly Meriam Process Technologies 10920 Madison Avenue Cleveland Ohio 44102 Telephone 216 281 1100 Fax 216 281 0228 E mail meriam meriam com Web www meriam com info Meriam Direct ca Meriam Direct a 1 800 868 7495
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