Greystone Energy Systems LP3 Series Catalog Page

LOW PRESSURE

TRANSMITTERS

LP3 Series

LP3 c/w LCD

LP3 c/w integrated

static probe

Precision low pressure
control/sensing

FEATURES:

• Jumper selectable 2 wire current and 3 wire
voltage outputs

• 24 Vac/dc power supply

• Six variable jumper selectable pressure ranges, W.C. & Pa.

• Available options include LCD display and
integrated static probe

Peace of mind

through reliable

pressure monitoring

GREYSTONE HAS AN ISO 9001 REGISTERED QUALITY SYSTEM

APPLICATIONS:

• HVAC/VAV

• Process Control

• Air Flow Monitoring

• Drop Across Air Filters

• Hydraulic Pressures

• Pneumatic Pressures

SPECIFICATION:

Accuracy................................................. ±1% F.S.O.

Measurement Type............................. Dierential (two port)

Response Time .....................................250 ms

Stability................................................... < ±1% F.S.O. per year

Thermal Eects.....................................< ±3% over compensated range

Compensated Range .........................0 - 50˚ C (32 - 122˚F)

Proof Pressure....................................... 40” W.C. (100“ for 12” and 20“ models)

Burst Pressure....................................... 60” W.C. (200” for 12” and 20” models)

Operating Conditions........................ 0 - 70˚C (32 - 158˚F), 10 - 90 %RH, non-condensing

Media Compatibility...........................Non-corrosive, non-ionic uids such as clean dry air or inert gases

Power Supply........................................20 - 28 Vac/dc (non-isolated half-wave rectied)

Supply Current .....................................< 4 mA

Input Voltage Eect............................ Negligible over specied operating range

Protection Circuitry.............................Reverse voltage protected and out limited

Output Signal........................................4-20 mA (2-wire), 0-5 or 0-10 Vdc (3-wire), switch selectable

Output Drive Capabilities................. Current: 400 ohms max @ 24 vdc

Voltage: 10K ohms min

Zero Adjustments................................Pushbutton auto-zero

Wiring Connections............................ Screw terminal block (14 to 22 AWG)

Pressure Connection.......................... Barbed ports for 5 mm (0.170“) ID exible tubing

Conduit Connection........................... Access hole for ½” NPT conduit or cable gland

Optional Display.................................. 3½ digit LCD, 0.4“ digit height

Enclosures.............................................. ABS, UL94-5VB, IP61 (NEMA 2)

127mm x 84mm x 53mm (5.00” W x 3.3“ H x 2.1” D )

Weight..................................................... 159 grams (5.6 oz)

ACCESSORIES:

FPP & SPP Series

Pitot Tube

The FPP and SPP series are used to sense
velocity pressure or static pressure respectively.
Constructed of 304 stainless steel probes with
an ABS mounting bracket, they available in 150
mm (6”) or 300 mm (12”) lengths. Kits are
available for dierential and static that are
complete with pneumatic tubing.

DPFS Series

Dierential Pressure Probe

The DPFS series Averaging Flow Sensor is ideal
for sensing dierential pressure in the inlet
section of variable air volume terminal units
and fan terminal units. Units can also be used
to sense dierential pressure at other locations
in the main or branch duct systems. They are
made of ABS/polycarbonate (UL94-5V) and
available in lengths from 100 mm (4”) to 560
mm (22”)

MP Series

Dierential Pressure Probes

The MP series Air Velocity Pitot Tubes are used
in conjunction with a DP transmitter to
calculate airow in larger ducts or in areas of
turbulent airow. The units come in pairs in
either ABS or 316 S/S and are available in
various lengths from 610mm (24”) to 2000 mm
(80”). Gasketed mounting collars for both
probes are included.