Dwyer 4000 - Manual

DWYER INSTRUMENTS, INC. Phone: 219/879-8000 www.dwyer-inst.com
P.O. Box 373 • Michigan City, IN 46361, U.S.A. Fax: 219/872-9057 e-mail: [email protected]
Series 4000 Capsuhelic ® Differential Pressure Gage
Specifications - Installation and Operating Instructions
Bulletin A-32
1/4 FEMALE NPT LOW
PRESSURE CONNECTION
(AIR OR GAS)
35° TYP
13/32
[10.32] TYPE
2-19/32
[65.86]
1/2
[12.70]
Ш5
[127.00]
Ш4-45/64
[119.46]
3/4 [19.05] TYP
1/4 FEMALE NPT HIGH
PRESSURE CONNECTION
(AIR OR GAS)
(4) #6-32 X 3/8 [9.53] DP
HOLE ON A 4-11/32 [110.33]
BOLT CIRCLE
1/4 FEMALE NPT HIGH
PRESSURE CONNECTION
(LIQUID)
1/4 FEMALE NPT LOW
PRESSURE CONNECTION
(LIQUID)
CAUTION: Use of a line filter (Dwyer Instruments, Inc. model A-391 or
equivalent) is recommended to prevent entry of liquid borne particles
into gage. Dwyer Instruments, Inc. cannot assume responsibility for
failure of gages due to clogging of internal passages.
Note: May be used with hydrogen where pressures are less than 35 psi.
Order with Buna-N diaphragm.
CAPSUHELIC ® GAGE INSTALLATION
1. Select a location free from excessive vibration and where the ambient
temperature will not exceed 200°F. Sensing lines may be run any
necessary distance. For example, 250 foot lines will not affect accuracy
but will damp the reading slightly. Do not restrict lines. If pulsating
pressures or vibration cause excessive pointer oscillation, consult
factory for means of providing additional damping.
2. All standard models are calibrated for use with the diaphragm and
scale in a vertical position. Special factory calibration is necessary for
operation in an inclined or horizontal position. The exceptions are ranges
under 5 in. w.c., (or metric equivalents) which can only be calibrated for
vertical operation.
SPECIFICATIONS
Service: Aluminum Case: Air and compatible gases and oil based
liquids. Brass Case: Air and compatible gases and water based
liquids.
Wetted Materials: Consult factory.
Housing: Die cast aluminum with impregnated hard coating, standard.
Optional forged brass housing is required for water or water based
fluids. Special material diaphragms available, contact factory.
Accuracy: ±3% of full scale at 70°F (21.1°C). (±2% on 4000S models,
±4% on 4200, 4210, 4215, 4220, 4300, 4400, and 4500).
Pressure Limits: -20˝ Hg to 500 psig.
(-0.677 bar to 34.4 bar).
Temperature Limits: 20 to 200°F. (-6.67 to 93.3°C).
Size: 4˝ (101.6 mm) diameter dial face.
Mounting Orientation: Diaphragm in vertical position. Consult factory
for other position orientations.
Process Connections: 1/4˝ female NPT high and low pressure taps,
duplicated -one pair top for air and gas, and one pair bottom for liquids.
Weight: 3 lb, 3 oz (1.45 kg) aluminum case; 7 lb, 13 oz (3.54 kg) brass
case.
Standard Accessories: Two 1/4˝ NPT plugs for duplicate pressure
taps, four flush mounting adapters with screws and four surface
mounting screws.
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