Meriam M203 Altimeter Indicated Air Speed Tester User Manual

User’s Manual 9R122-A June, 2010 M203 Altimeter / Indicated Air Speed Tester USER’S MANUAL The Meriam Process Technologies (Meriam) M203 Altimeter / I

72. Press MIN/MAX and TARE keysat the same time. (See Figure 1 above. Top Line of display reads “ZEROING SOURCE:” Bottom line of display reads “REF TO

8If an error is made use the back space ◄ key to move the cursor back to the incorrect digit. Press the UP ▲ or DOWN ▼ arrow keys to correct the value

9Units 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

10ALT/ IAS (Altitude / Indicated Air Speed) Mode The model M203 is capable of displaying altitude (feet or meters based on “U.S. Standard Atmosphere 1

116. If METRIC units aredesired, press the ▲ or ▼ arrow key Top line reads “UNITS SELECT” and bottom line reads “METRIC”. Units are set to METERS and

12Damp Rate Select Adjustable exponential type damping is available to steady the display when measuring pulsating pressures. The M203 has a range of

13User Info Select (Accuracy, SW version, Mfr date, SN) The User Info Select registers are designed to provide the user with information on the hardwa

14Auto Shut-Off Enabling the Auto Shut-Off feature allows the manometer to turn itself off after a user selected period of keypad inactivity. Selectab

15Lockout Select Enabling the Lockout feature prevents unauthorized users from making changes to the configuration of the manometer. To enter the Pro

16Header Name Follow the steps below to edit the Header Name. Keystroke Display1. From the Measure Modepress the PRGM key. Top line reads “PROGRAM MOD

Safety Information Failure to follow all instructions could result in injury. Read, understand and follow all safety warnings and instructions provid

17Contrast Select The Contrast Select register allows the user to adjust the character contrast of the LCD display to provide the best visibility for

18Data Logging Data Logging can be used to record pressure measurements. Two record modes are supported: automatic and manual. In automatic mode, a pr

19Leak Test The Leak Test feature allows the user to determine the leak rate in the pneumatic system being monitored. Once configured, Leak Test monit

20Re-Calibration The Manometer can be re-calibrated in the field for zero, span, and linearity. The proper primary standards must be available prior t

21RE-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 the

22RE-CALIBRATION – 5 Point EDIT To edit the calibration points for a 5 Point re-calibration follow the steps below. NOTE: If the factory default value

23RE-CALIBRATION – 5 Point START To begin the 5-point re-calibration procedure, turn the unit OFF and follow the steps below. Keystroke Display1. Pres

2411. Press the PRGM key atYES to save the Re-Calibration data or at NO to exit without saving. YES to save the Re-Calibration data or at NO to exit w

25Specifications Type, Range and Display Resolution: 17.4-3 psia (900.00 mmHg) – XX.YYY (XXX.YY) Minimum / Maximum Display Values: Altitude: -2000.0 t

Battery Operation: > 100 hours continuous use, 1 year shelf life, auto power off programmable at disabled, 10, 20, 30, 60 or 90 minutes Enclosure:

Table of Contents Certification/Safety/Warnings ...1 User Interface ...

battery polarity markings at the bottom of the compartment, as shown here. To install the four batteries: 1) Make sure polarity of battery matches th

Service and Calibration If the M203 can not be zeroed, recalibrated or is damaged, it must be returned to the factory for servicing.

For customer assistance please call your local Meriam representative or Meriam directly. Meriam Process Technologies 10920 Madison Avenue Cleveland, O

User’s Manual 9R122-A June, 2010 1 Certification/Safety/Warnings Fire/Explosion Hazard. This instrument is not intrinsically safe. DO NOT use in a

2User Interface 1.Keypad FunctionsON/OFF & BACK ◄ KEY Turns the manometer on and enters the unit into the Measure Mode. Pressing the key while in

3PRGM & ENTER ► KEY Puts the manometer into the Program Mode from the Measure Mode. When in the Program Mode, pressing this key se

42.Zeroing the ManometerThe M203 Precision Smart Manometer is a stable and precise instrument. However, on occasion the M203 should ha

51.To zero the manometer using Referenced to Absolute Zero,start with the unit turned OFF and use the following keystroke sequence: Keystroke Display

62.To zero the manometer using Factory Zero, start with the unitturned ON and in Measure Mode. Then use the following keystroke sequence: Keystroke Di