M200 Smart Manometer

High precision, handheld digital manometer features NIST traceable accuracy of ± 0.025% FS

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Meriam’s M2 Series Smart Manometers bring high precision and value to handheld, digital manometer users. The M2 features NIST traceable accuracy of ± 0.025% of F.S., independent of temperature effect, at the lowest prices available. Pressure ranges from 10 in H₂O F.S. to 3000 PSIG F.S. are available. M2 pressure sensors are available to measure gauge, compound, differential, absolute or vacuum pressure. The display can read out in any of eleven pressure units or can be linearly scaled for special user units. Differential models offer a square root flow function to display flow rate in user defined units. An adjustable damping feature minimizes the effects of pulsating pressures. A Min/Max function captures the extremes of pulsating or varying pressure signals and a Hold function can freeze the display at any point of interest. Auto Record documents up to 240 readings for future recall.

This model is an updated version of the 350 and 351.

All models include a protective red boot, four (4) AA alkaline batteries, and a hard copy user's manual. N.I.S.T. Certificate with Data (Z1065) is also included with all models. Intrinsically safe certification is available for models with a pressure less than 150 PSI.

• Sensors available to measure gauge (GI), compound (CI), differential (DI/DN), or absolute (AI) pressure
• Auto record documents up to 240 readings for future recall (automatic or manual)
• Min/Max capture
• Field recalibration (for zero, span, and linearity)
• Auto shut-off programmable at 10, 20, 30, 45, and 60 min
• Ex ia IIC T4 certifications

Accuracy	± 0.05% FS or optional ± 0.025% FS
Media Compatibility	DN: Non-isolated differential sensor for clean, dry, non-corrosive gases GI & AI: Isolated gauge or absolute sensor for fluids compatible with 316L stainless steel
Engineering Units	in of H₂O (select 4°C, 20°C), PSI, mm of Hg, in of Hg, mbar, bar, kPa, kg/cm², cm of H₂O and user selectable scaling
Auto Record	Document up to 240 readings (automatically or manually)
Storage Temperature	-40°C - 60°C
Operating Temperature	Intrinsically safe (IS) Models: -5°C - 50°C General Purpose (GP) Models: -20°C - 50°C
Battery Type	Four (4) AA batteries
Battery Life	Over 100 hrs of continuous use, with auto shut-off
Connections	1/8 in female NPT, 316L stainless steel
Base Unit Material	Polycarbonate, permanently dissipative, ESD protection
Wetted Parts Material	DN: 316L stainless steel, brass, viton GI: 316L stainless steel AI: 316L stainless steel
Weight	400 g
Dimensions	165 mm x 91 mm x 57 mm
Other Features	Two-stage backlight, field recalibration, Min/Max capture
Certifications (Optional)	Ex ia IIC T4, Class 1, Div. 1, Groups A, B, C, D, T4