PPressure Regulators Specs

Click on image for dimensional data

PORTER Electronic Pressure Regulators
Featuring PORTER's exclusive absolute zero (ABZ)
PORTER Models 415 (forward pressure) and 425 (back pressure) Electronic Pressure Regulators combine the proven PORTER EPC Proportional Control Valve with an integrally mounted pressure sensor and the necessary electronics for self-contained closed-loop pressure control. The controlled pressure is established by a user-applied 0-5 Vdc setpoint voltage.

The exclusive absolute zero (ABZ) feature allows the pressure signal to be essentially clamped at zero for signals less than 1.5% full scale, which in turn forces the control valve closed. ABZ minimizes the zero drift effects due to temperature variation and guarantees the control valve will not open for setpoint values less than1.5% full scale. When pressure is adjusted to greater than 1.5% full scale, the pressure signal is enabled and calibrated accuracy is achieved. The ABZ feature may be disabled by means of a control input at the electrical connector.

MODEL	REGULATOR TYPE	VALVE LOCATION	SENSOR TYPE
415	Forward Pressure	Valve Upstream	Gage
425	Back Pressure	Valve Downstream	Gage

Specifications

Performance (performance specifications at 20°C, 100 PSIG inlet pressure and +15 Vdc power supply voltage unless otherwise noted)

Gases Accommodated...Any clean, dry gas compatible with materials of construction

Maximum Inlet Pressure:

Pressure Range	Maximum Inlet Pressure
0-5 PSIG 0-10 PSIG 0-15 PSIG 0-30 PSIG 0-50 PSIG 0-100 PSIG:	15 PSIG 45 PSIG 45 PSIG 90 PSIG 150 PSIG 200 PSIG

Pressure Regulation Accuracy - +1.5% F.S.
Pressure Regulation Linearity - +1% F.S.
Repeatability - + 0.25% F.S.
Temperature Coefficient - +0.1% F.S./°C maximum
Pressure Signal Zero Shift:
ABZ Enabled <0.1% F.S. over 0-50°C range
ABZ Disabled <1% F.S. over 0-50°C range
Valve Inboard Leak Rate - 0.2 SCCM He @ 90 PSIG

Electrical

Pressure Signal Output - 0-5 Vdc for 0 to full scale pressure range (pressure signal output forced to 0 Vdc whenever Less than than 1.5% F.S. (75 cmV) and ABZ is enabled

Setpoint Input - 0-5 Vdc for 0 to full scale pressure range

Power Supply Voltage - +15 Vdc (+10%)

Maximum Operating Power @ +16.5 Vdc - 2.25 watts (150 mA max from +15 Vdc supply)

ABSOLUTE ZERO (ABZ) Input -
Enable ABZ= No connection
Disable ABZ= 0V (threshold <3.0 Vdc)

Mechanical

Dimensions - Refer to DIMENSIONAL DATA section

Mounting Orientation - Attitude insensitive

Electrical Connector - 8-contact (mating connector- AMP P/N 640441-8)

Process Connections - 1/16", 1/8" or 1/4" Swagelok

Materials Of Construction

Body - Aluminum

Pressure Sensor Assembly - Pyrex , ceramic, silicon, epoxy, RTV and stainless steel

Orifice - Brass

Valve Components (Wetted) - Aluminum, brass, 302 stainless steel, 305 stainless steel, 316 stainless steel, 430 stainless steel and Sandvik 1802

Elastomers (O-rings and Valve Seat) - Buna N, EPDM, Neoprene or Viton

Process Connections - Brass or 316 stainless steel

Environmental

Operating Temperature - 0 to 50°C (32 to 122°F)

Storage Temperature - -17 to 75°C (2 to 167°F)

Packaging - Individually packaged in lint-free bags for storage

Specifications subject to change
Swagelok¨ - Swagelok Co.
Pyrex¨ - Corning Inc.
Sandvik¨ Ð AB Sandvik Materials Technology
Viton¨ - DuPont Dow Elastomers L.L.C.