Meriam M2 Series Precision Absolute Manometer (M202)

Meriam M2 Series Precision Absolute Manometer (M202)

Meriam’s model M202 Precision Absolute Manometer brings calibration bench accuracy to a portable, handheld unit. The pressure sensor is all 316SS allowing it to be used with liquids, gasses and corrosives compatible with 316SS. This combination of accuracy and fluid compatibility makes the M202 ideal for environmental, test or realtime process measurements of pressure relative to absolute zero.

The M202 includes features for minimum and maximum (Min/Max) value capture, tare readings and user selectable engineering units. A selectable altitude function allows users to enter site altitude above sea level in order to display local barometric pressure or barometric pressure corrected to sea level. User referenced altitude (referenced to map or trig markers) or altitude based on US Standard Atmosphere of 1962 can be selected for display. Using the altitude function with the Min/Max and Tare features makes the M202 very useful as a surveyor’s tool to accurately measure changes in altitude.

Features:

• Bench Accuracy to a Portable, Handheld Unit
• ATEX Intrinsic Safety
• M202-AI10017 (F.S.= 17.403 PSIA or 900mm Hg Abs.) +/-0.02% F.S.
• M202-AI0038 (F.S. = 38.674 PSIA or 2,000 ,,Hg Abs.)
  +/-0.015% F.S. from 0 - 19.337 PSIA (0-1,000 mmHgA)
  +/-0.025% F.S. from 19.338 - 38.674 PSIA (1,000-2,000 mmHgA)
• Engineering Unit Selection - mmHg, PSI, inHg, mbar, bar, kPa, Torr, feet, meters
• Min/Max, Hold, Damping features

Specifications:

Approvals
CE compliant
Optional Intrinsically Safe (I.S.) per ATEX and cULus

Media Compatibility
Isolated AI sensor for fluids compatible with 316SS

Pressure Limits
77 PSIA (4,000 mm Hg Abs) for both AI0017 and AI0038

Tare
Nulls applied pressure to allow measurement of vacuum, gauge pressure or change in pressure or altitude from a reference point

Min/Max Capture
Capture speed is equal to the selected damping rate

Damping Rates
User selectable from 0.1 to 25 seconds

Backlight
Green; changes to Red for over pressure Engineering Unit Selection – mm Hg, PSI, in. Hg, mbar, bar, kPa, Torr, feet, meters

Altitude
Displayed in feet or meters. Can be set by user based on map or trig marker information or standard altitude uses U.S. Standard Atmosphere of 1962 data

Contrast Adjustment
Adjusts display for best viewing

Field recalibration
Supported through firmware feature