Series 300 6" Dial High Precision Differential Pressure Gauges

For routine test and production uses, this capsule-type gauge offers an acceptable balance among size, readability, accuracy, and price. Available in 18 standard ranges (including vacuum and compound ranges), the Series 300 is convenient to use. High differential pressure is applied to the capsule; low pressure to the case. Maximum static (case) pressure is 15 psig. A built-in overpressure relief valve protects the case.

STANDARD FEATURES

Size:

6" dial

Scale length:

16"

Range:

To100 psi

Accuracy:

0.33% of full scale

Sensitivity:

0.2% of full scale

Pressure element volume:

2.5 cc for the range 0-10" water; 2.0 cc for all other ranges.

Case volume:

1890 cc, with overpressure relief valve on the case

Maximum case pressure:

15 psig

Maximum case leak rate:

Will not exceed 6.34 x 10-5 std cc/sec or 0.0018 psi/hr

Case connection:

1/8" female NPT pressure and static connections. Both have built-in stainless steel filters and are located in the bottom of the case.

Case construction:

Cast aluminum with tempered-glass dial cover. Flush mounted by three screws through the bezel.

Materials exposed to measured gas:

Pressure elements:

beryllium copper, brass, soft solder in ranges to 100" water; silver and soft solder in ranges above 100" water.

Case:

Aluminum, beryllium copper, brass, stainless steel, nylon, Hypalon, Monel, soft solder, synthetic sapphire, TFE, white paint, drawling ink, Duco lacquer. Ranges above 100" water have silver solder also.

Options:

Calibration in most metric units is available at no extra cost. Other units of calibration and two sets of graduations on the same dial are available at extra cost.

STANDARD RANGES AND ORDERING NUMBERS

Series 300 6" Dial Differential Pressure Gauge

Range & Calibration	Ordering Number	Graduation
0-10" water	62C-4C-0010	0.05"
0-20" water	62C-4C-0020	0.1"
0-40" water	62C-4C-0040	0.2"
0-60" water	62C-4C-0060	0.5"
0-100" water	62C-4C-0100	0.5"
0-200" water	62C-4C-0200	1.0"
0-300" water	62C-4C-0300	2.0"
0-400" water	62C-4C-0400	2.0"
0-15 psi	62C-4A-0015	0.1 psi
0-30 psi	62C-4A-0030	0.2 psi
0-60 psi	62C-4A-0060	0.5 psi
0-100 psi	62C-4A-0100	0.5 psi

Vacuum and Compound Ranges

Range & Calibration	Ordering Number*	Graduation
-10" water to 0	62C-7C-0010	0.05"
-20" water to 0	62C-7C-0020	0.1"
-400" water to 0	62C-7C-0400	2.0"
-5 to 0 to 5" water	62C-6C-0010	0.05"
-10 to -10" water	62C-6C-0020	0.1"
-20 to 0 to 20" water	62C-6C-0040	0.2"
* Can be calibrated as shown, or in any other standard pressure unit at no extra cost.