Meriam ZM201-DN200 Enhanced Rotary Gas Meter Tester, 0-200" H2O Range, +/-0.05% Accuracy, 1/8" NPT Female Connection

Meriam's M201 has new features to make drop testing rotary (natural) gas meters even easier. New hardware options protect the M201 from one sided overpressure. Options include a 1/4 turn valve manifold and an integral push-to-read cartridge valve in addition to the traditional push-to-read valve manifold. More importantly, new operating features provide users with a live pressure display and more automation to make field use easier than ever before. The new Measure Mode lets the M201 be used as a conventional differential pressure measurement device. Users will appreciate the live pressure display as they check the handheld's zero or observe DP across rotary gas meters. And when a drop test is made, the M201 uses an internal stop watch to measure the test length. The user only has to start and stop the test; the M201 reports both the test time and the average differential pressure measured during the test. Toggle the Min/Max key to see the minimum and maximum DP measured during the test. User selectable shut-off. Programmable at 10, 20, 30, 45, 60 minutes and disable. User selectable shut-off. Programmable at 10, 20, 30, 45, 60 minutes and disable. 14 Ounce (6.9" by 3.8" by 2.3") polycarbonate, permanently dissipative, ESD protection. Sealed membrane type with 5 dome contact style buttons. 5 Significant digit LCD (0.25" high) 2 line x 16 alphanumeric characters with contrast adjustment. Backlight included. 4 Each AA batteries providing over 100 hours of continuous use. 1/8" Female NPT connection. NIST Traceable accuracy: + 0.05 percent FS 0-200" H2O.