Dwyer® No. 424 inclined-verticalmanometer are extremely accurate instruments designed and madeespecially for precision measurement of low differential pressuresin laboratory and test applications. The inclined range bore has alength of 20″ to provide ample multiplication of indicatingfluid movement in this critical lower part of the range. 1-1/4″ THICK ACRYLICPLASTIC BODY is a solid block, virtually unbreakable,stable and absolutely free of the danger of distortion. 3/16″ BORES, ACCURATETO ± .0002″ are permanently free of bends or crooks,will not require recalibration because of distortion. GROUND GLASS BUBBLE LEVELsensitive to 115-125 sec./2 mm. is 1-1/2″ long x.375″ diameter and provided with two red lines for easyvisibility and alignment. PARALLAX-FREE READINGfor maximum accuracy and consistency is achieved by simplyaligning the meniscus with its image reflected in the polishedaluminum scale. SELECTED GAGE OIL withhigh wetability characteristics forms a consistent, wellshaped meniscus for perfect readability. O-RING SEALED FLUID LEVELPLUNGER ADJUSTMENT for easy zeroing
SERIES 421
| EXAMPLE | 421 | 5 | B | Series 421-5-BDurablock® Inclined-Vertical Manometer, single column,6-1/2″ inclined scale, range 0-1″ w.c.inclined and 1-5″ w.c. vertical, with type Bconnections. |
| SERIES | 421 | Single Column,6-1/2″ Inclined Scale | ||
| RANGE | 5 10 23 130MM 250MM 58CM |
0-1″ w.c.Inclined and 1-5″ w.c. Vertical 0-1″ w.c. Inclined and 1-10″ w.c. Vertical 0-2″ w.c. Inclined and 2-23″ w.c. Vertical 0-25 mm w.c. Inclined and 30-130 mm w.c. Vertical 0-25 mm w.c. Inclined and 30-250 mm w.c. Vertical 0-5.5 cm w.c. Inclined and 7-58 cm w.c. Vertical |
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| OPTIONS | B C D E AT NIST |
Type B Connections Type C Connections Type D Connections Type E Connections Aluminum Tag NIST Certificate of Calibration |
SERIES 422
| EXAMPLE | 422 | 10 | AT | Series 422-10-ATDurablock® Inclined-Vertical Manometer, double column,6-1/2″ inclined scale, range 0-1″ w.c.inclined and 1-10″ w.c. vertical, with aluminumtag. |
| SERIES | 422 | Double Column,6-1/2″ Inclined Scale | ||
| RANGE | 5 10 23 130MM 250MM 58CM |
0-1″ w.c.Inclined and 1-5″ w.c. Vertical 0-1″ w.c. Inclined and 1-10″ w.c. Vertical 0-2″ w.c. Inclined and 2-23″ w.c. Vertical 0-25 mm w.c. Inclined and 30-130 mm w.c. Vertical 0-25 mm w.c. Inclined and 30-250 mm w.c. Vertical 0-5.5 cm w.c. Inclined and 7-58 cm w.c. Vertical |
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| OPTIONS | B C D E AT NIST |
Type B Connections Type C Connections Type D Connections Type E Connections Aluminum Tag NIST Certificate of Calibration |
ACCESSORIES:
- A-101 – 3/4oz dispenser bottle of red gage oil, .826 sp. gr.
- A-102 – 4oz bottle of red gage oil, .826 sp. gr.
- A-103 – 1pt bottle of red gage oil, .826 sp. gr.
- A-104 – 1qt bottle of red gage oil, .826 sp. gr.
- A-110 – 3/4oz dispenser bottle of blue gage oil, 1.910 sp. gr.
- A-111 – 1pt bottle of blue gage oil, 1.910 sp. gr.
