Meriam Process Technologies

M201 Rotary Gas Meter Tester

Features make drop testing rotary gas meters easy, including manifold options, live pressure display and more automation

Starting At
$2,275.00 CAD
Normally ships in 3-4 Weeks

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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 in H2O range) or 0.05% FS (200 in H2O range). This provides better accuracy in the low DP ranges as compared to mechanical gauges or manometers. 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 23ºF - 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 in 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.

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.

Two equalizing valve / manifold options are available:
• PRT: Push-to-Read valve equalizing manifold, normally open, brass, 1/8 in NPT (female) connections (for 2-port pressure manifold only)
• QTV: 1/4 Turn Valve equalizing manifold, manually equalize and isolate, brass, copper, 1/8 in NPT (female) connections (for 2-port pressure manifold only)

• Digital display
• Push-to-read valve
• Min/Max capture
• Field recalibration (for zero, span, and linearity)
• Auto shut-off programmable at 10, 20, 30, 45, and 60 min

Accuracy DN0028 (0 - 28 in H2O): 0.1% FS
DN0200 (0 - 200 in H2O): 0.05% FS
Media Compatibility DN: Non-isolated differential sensor for clean, dry, non-corrosive gases
Engineering Units in of H2O (select 4C, 20C, or 60F), PSI, mm of Hg, in of Hg, mbar, bar, kPa, kg/cm2, cm of H2O and user selectable scaling
Storage Temperature -40C - 60C
Operating Temperature Intrinsically safe (IS) Models: -5C - 50C
General Purpose (GP) Models: -20C - 50C
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
Weight 14 oz.
Dimensions 6.5 in x 3.6 in x 2.25 in
Operation A push-to-read valve keeps HI and LO sides equalized during connection across meter
Other Features Backlight, field recalibration, Min/Max capture
Certifications (Optional) Ex ia IIC T4, Class 1, Div. 1, Groups A, B, C, D, T4
Low-pressure connector kit for the M1 series of manometer calibrators
Normally ships in 1-2 Weeks
$195.00 CAD
Red protective boot for for M1 series manometers
Normally ships in 1-2 Weeks
$46.00 CAD
316 stainless steel 3 valve manifold with stainless steel tubing, to 3000 PSIG
Normally ships in 1-2 Weeks
$790.00 CAD
Replacement integral push-to-read (normally open) equalizing valve (for 3 port pressure manifold only)
Normally ships in 1-2 Weeks
$390.00 CAD
Available with 1/8 in or 1/16 in NPT needle
In Stock
Starting At
$306.00 CAD
ABS plastic carrying case for M200, M201 and M202 manometers
Normally ships in 1-2 Weeks
$130.00 CAD
316 stainless steel 3 valve manifold with brass tubing, to 500 PSIG
Normally ships in 1-2 Weeks
$377.00 CAD