MODEL MA-2 Digital Manometer DESCRIPTION This hand-held manometer is a compact, bi-directional, battery-operated digital manometer with excellent sensitivity and stability down to 0.001" of water column (or 0.1 Pascal). The sensing element is a Modus proprietary highly sensitive differential capacitance cell, designed to operate at extremely low pressures. This sensing element has been used for many years in other Modus pressure transmitters and has proved very reliable. This sensing element is used for pressures below 1.00 inch of water column. Pressures greater than 1 inch of water are sensed by the latest silicon based technology. The Modus digital manometer is an ideal instrument for HVAC test and balance work, furnace draft measurement, clean room or paint spray booth differential pressure measurement and other specialized low differential pressure measurement applications. To enhance the versatility of the manometer, an accessory kit or individual accessories may be ordered separately to fit specific applications. ORDERING INFORMATION Order Number (See Table below and Reference Table C) MA2 - PR Example: MA2 - 01E PR = Pressure Range (See Reference Table C) Enter the 3 digit code from Standard Pressure Range - Table C To download an Adobe Acrobat PDF file of this product's pages in our catalog please click here.

SPECIFICATIONS General Pressure ranges are available in English or metric units, see Reference Table C Performance Resolution: see Reference Table C Accuracy: +/- 1/2% of range plus 1 digit Position sensitivity: less than 2.5% of range Electrical Connections Low battery indicator: the symbol "BAT" appears on the display Battery: one 9 Volt alkaline Battery life: 200 hours (may be operated for another 20 hours without loss of accuracy after the first appearance of the "BAT" symbol on the display) Environmental Operating temperature range: 0°C to +50°C (+32°F to 122°F) Storage temperature range: -20°C to +70°C (-4°F to 160°F) Physical Standard accessories: instruction card and 9V battery Connections: metal fittings for 3/32" or 3/16" (2.5 or 5mm) I.D. flexible tubing. Display: LCD, .5" digit height Operating medium: air or non-corrosive non-explosive gases only Maximum momentary pressure limit: Refer to Reference Table C Controls: ON/OFF switch and thumbwheel for exact nulling of display Physical dimensions: see outline drawing Weight: 0.63Lb (285g) ACCESSORIES The accessories are: Part Number and Description SD-015 Surge Damper with 15 second time delay SD-030 Surge Damper with 30 second time delay SD-060 Surge Damper with 60 second time delay KT1 Accessory kit *(see below for description) A-4001 Carrying case (9.5"x13"x5.5") A-303 Static pressure tip with magnetic mounting clip A-344 Insertion tube A-2011 10 Ft length of 3/16" I.D. rubber tubing A-3001 Stepped straight connector for tubing size from 3/32" to 3/16" I.D. (2.5 mm to 5 mm I.D.) A-3002 Stepped "Y" connector for tubing size from 3/32" to 3/16" I.D. (2.5 mm to 5 mm I.D.) 166-6 6" Pitot tube 160-12 12" Pitot tube** 160-18 18" Pitot tube** 160-24 24" Pitot tube** 160-36 36" Pitot tube** 160-48 48" Pitot tube** 160-60 60" Pitot tube** ** These Pitot tubes will not fit in the standard carrying case. * The KT1 accessory kit consists of: (1) carrying case (with storage compartment for the digital manometer), (1) 6" Pitot tube, (2) static pressure tips, (1) insertion tube, (2) 5 Ft lengths of rubber tubing, (2) stepped straight connectors, (2) stepped "Y" connectors.