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M201 Differential Roots Meter Tester

 




Price starts at $420.00

Product Code : M201

Manufacturer : Meriam

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M201 Rotary Gas Meter Tester

Summary

The M201 Rotary Gas Meter Tester is specially programmed to measure the differential pressure, and display the true average of those measurements. The amount of time over which the averaging occurs is controlled by the user. This feature addresses the flow surge and pulsation concerns. The M201 Rotary Gas Meter Tester has an accuracy of 0.1% FS (28" H2O range) or 0.05% FS (200" H2O range). This provides better accuracy in the low DP ranges as compared to mechanical gauges or anometers. The M201 Rotary Gas Meter Tester is well suited for use in the field, its accuracy is not affected by temperature over its calibrated range of 23º F to 122º F. This temperature effect on mechanical gauges, liquid manometers and some digital indicators can result in serious accuracy errors. The digital display eliminates parallax errors, and depending on the range of the gauge, it can have a resolution of 0.01 or 0.001" H2O. A min/max feature also allows the user to see the minimum and maximum pressures recorded during the test. The unit is portable, and with the integral push to read manifold, the M201 Rotary Gas Meter Tester can safely be used with lines having a static pressure of up to 150 PSIG.

Accuracy

DN0028: + 0.1% FS 0-28"
DN0200: + 0.05% FS 0-200"
No temperature effect from 23o to 122o F (-5o to +50o C).

Engineering Units
Inches of H2O (select 4o C, 20o C, or 60o F), PSI, mm of Hg, inches of Hg, mBars, Bars, kPa, kg/cm2, cm of H2O and user selectable scaling.

Media Compatibility
DN: Non-isolated differential sensor for clean, dry, non-corrosive gases.

Field Re-cal
The M201 can be recalibrated in the field for zero, span, and linearity. The user has the option to select a 1 point or 5 point calibration procedure. Enables users with accurate primary standards to calibrate their devices locally if desired.

Pressure Limits
Twice range on Differential (DN) units when pressurized on high side only and 150 PSI (10.5 Kg/cm2) static when applied to both sides of the sensor simultaneously.

Min/Max Capture
Capture speed is 10X per second.

Operation
A push-to-read valve keeps HI and LO sides equalized during connection across meter. Turn M201 "ON" to get message "Press Hold to Acquire Data." Press "Hold" key to start test. User determines test time, ending test by pressing the "Hold" key again. Display will show the averaged differential pressure across the meter from test start to test stop. Press the "Hold" key again to start a new test.

Auto Shut-Off
User selectable shut-off. Programmable at 10, 20, 30, 45, 60 minutes and disable.

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