Series 1227 Dual Range Flex-Tube® U-Inclined Manometer
0.2" Minor Scale Divisions, Accuracy +/- 0.1" W.C.
Use Series 1227 as a regular U-tube manometer to read high-range pressure on the right leg, or as an inclined manometer to read low-range pressure on the bottom leg. Simply incline manometer until fluid levels read zero. No spirit level required. Magnetic clips hold the gage in position on a steel duct surface.
Most versatile and useful low cost manometer we know of. Designed for installation and servicemen. A sturdy, clear plastic manometer, it offers single, direct readings in two ranges: As a U-tube, it reads from 0 to 16" of water; as an inclined gage, it reads from -.20 to 0 to 2.6" of water. Model 1227M (Metric) is 0 to 400 mm water column as a U-tube and -5 to 0 to 70 mm water column as an inclined gage. "How-to-use" instructions are printed directly on the scale.
- Fan status
- Filter monitoring
Models & Ordering
- Reads 0 to 16 in w.c. as a U-tube and -0.20 to 0 to 2.6 in w.c. as an inclined gage
- Clear, shatterproof indicating tube provides overpressure protection
- Black markings on a stark white scale for positive definition
|Model Number||Description||Usually Ships*||Price||Order|
|A-101||1 oz dispenser bottle of red gage fluid, .826 sp. gr.||Next Day||$7.80||Order|
|A-102||4 oz bottle of red gage fluid, .826 sp. gr.||Next Day||$15.00||Order|
|A-103||1 pt bottle of red gage fluid, .826 sp. gr.||Next Day||$34.00||Order|
|A-104||1 qt bottle of red gage fluid, .826 sp. gr.||Next Day||$64.00||Order|
|1227-CC||Vinyl carrying case for the 1227 manometer.||1-2 Weeks||$17.00||Order|
|A-356||Gage plug with retainer loop, polyethylene plastic, for 1/4" ID tubing, slip loop over tubing OD and insert plug for seal.||Next Day||$3.75||Order|
|A-319||Flexible red PVC connector, 3/16" ID rubber tubing to 1/4" ID plastic tube for 1221,1222 and 1227 manometers.||Next Day||$3.75||Order|
|A-344||Terminal tube, brass, 1/4" diameter tube, 8" length.||1-2 Weeks||$5.10||Order|
|A-339||Adapter, brass, 1/8" NPT to 3/16" rubber and 1/8" ID plastic tubing.||Next Day||$4.20||Order|
|A-220||Clear flexible vinyl tubing is easily inspected, and is therefore best for test applications where a possibility of fluid entering the tubing exists. 3/16" ID x 5/16" OD, lengths to 500'; 45 psi maximum pressure @ 73°F.||Next Day||$0.25||Order|
|A-357||Thermometer and terminal tube holder, stainless steel wire.||Next Day||$5.30||Order|
|A-364||Magnet assembly for 1222 manometers, 2 required (3 required for 1222-36 and M-1000).||1-2 Weeks||$7.60||Order|
- What are the principle advantages of red gage fluid over water for use in manometers?
- Red gage fluid is slow to evaporate, won't freeze, is more readable and produces slightly expanded scales for better reading resolution.
- Is routine maintenance required for a Dwyer red gage fluid type manometer?
- Yes. The zero point should be checked periodically as well as the fluid level. After a year of service, particularly with dirty air, the fluid should be replaced to assure that specific gravity changes are not affecting the accuracy of the reading.
- Will the water manometers freeze?
- Yes, if the temperature drops below 32 degrees Fahrenheit, the fluid in the manometer will freeze. The fluid used in "W/M" style manometers is water-based with a small amount of fluorescent green fluid to enhance the meniscus. The other gage fluids have a lower freezing point, however, it is recommended that the manometers be stored above 32 degrees Fahrenheit.
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