Greenheck BAPI Zone Pressure Touch User Manual

Zone Pressure Touch (ZPT) Sensor - Standard Range

Installation and Operation Instructions

32215_ins_ZPT_SR_NT.pdf

rev. 05/09/2014

Product Identication

BAPI’s “Touch” Pressure Sensor is an accurate, rugged and economical solution for measuring and reporting duct/
building static pressure, room-to-room
differential pressure or air velocities/
volumes. The heart of the unit is a
micro-machined silicon pressure
sensor with excellent accuracy,
repeatability and stability.

The touch interface allows for quick
and easy menu driven set up of all
parameters including auto zero,
pressure ranges, output ranges, W.C.
or Pascal operation, and display
format of pressure, percent output or
“On”. You can also use the interface to
create custom ranges by adjusting the
upper and lower pressure endpoints.

Fig. 1: Zone Pressure Touch (ZPT), Enclosure Open and Closed

Specications

Power:

7 to 40 VDC (4 to 20 mA Output)
7 to 40 VDC or 18 to 32 VAC (0 to 5 or 1 to 5 VDC Output)
13 to 40 VDC or 18 to 32 VAC (0 to 10 or 2 to 10 VDC Output)

Power Consumption:

20 mA max, DC only at 4 to 20 mA Output

4.9 mA max DC at 0 or 1 to 5 VDC or 0 or 2 to 10 VDC Output

0.12 VA max AC at 0 or 1 to 5 VDC or 0 or 2 to 10 VDC Output

Load Resistance:

4 to 20 mA Output 850 Ω Maximum @ 24 VDC
0 to 5 VDC or 0 to 10 VDC output 1KΩ minimum

Customer Editable Parameters:

Auto-Zero, Pressure Range, Output Range, & Display

Accuracy at 72°F: ±0.25% of range

Stability: ±0.25% F.S. per year

Environmental Operation Range: 32 to 140°F (0 to 60°C)

Storage Temperature: -40 to 203°F (-40 to 95°C)

Temperature Error: 0.01% FS/°F (0.02% FS/°C)

(±5.0” WC @ -4 to 140°F [-20 to 60°C])

Overpressure: Proof 27.68” WC (1 PSI),
Burst 41.52” WC (1.5 PSI)

Wiring: 2 wires (4 to 20mA Current loop)
3 wires (AC or DC powered, Voltage out)

LED: Blue power and Auto-Zero indicator

Connector: Removable 3-terminal plug, 12 to 28 AWG

Humidity: 0 to 95% RH, non-condensing

Port Connection: 1 High Pressure & 1 Low Pressure for

push-on 1/4” tubing (1/8 to 3/16” I.D.)

Enclosure Material: UV-resistant Polycarb., UL94, V-0

Enclosure Rating: IP66, NEMA 4

Mounting: Four external tabs with holes for #10 screws

Ranges: Imperial or metric units available through setup

Setup Buttons: 3-Waterproof capacitive touch through

cover; Left Arrow, Enter, Right Arrow

Display: 4-Digit, 0.368 Inch (9.4 mm) tall

Agency: CE, RoHS

Table 1: Pressure Ranges

Inches Unit Pascal Unit

Range Pressure Range Pressure Range Pressure Range Pressure

71 0 to 1.00 in W.C 76 ± 1.00 in W.C. 81 0 to 250 Pa 86 ± 250 Pa

72 0 to 2.00 in W.C. 77 ± 2.00 in W.C. 82 0 to 300 Pa 87 ± 300 Pa

73 0 to 2.50 in W.C 78 ± 2.50 in W.C. 83 0 to 500 Pa 88 ± 500 Pa

74 0 to 3.00 in W.C. 79 ± 3.00 in W.C. 84 0 to 1,000 Pa 87 ± 1,000 Pa

75 0 to 5.00 in W.C. 80 ± 5.00 in W.C. 85 0 to 1,250 Pa 90 ± 1,250 Pa

Specications subject to change without notice.

Building Automation Products, Inc., 750 North Royal Avenue, Gays Mills, WI 54631 USA

Tel:[phone] • Fax[phone] • E-mail:[e-mail] • Web:www.bapihvac.com

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Zone Pressure Touch (ZPT) Sensor - Standard Range

Installation and Operation Instructions

32215_ins_ZPT_SR_NT.pdf

Mounting

Attach the unit to its mounting
surface with four #10 screws
through the holes in the
mounting feet. The preferred
mounting orientation is with the
pressure ports facing down.

Note: Remove Blue Dust Shields
from pressure ports before
use. Push tubing onto the port
nipple. Avoid kinks and holes in
the tubing or accuracy will be
affected.

Note: BAPI recommends using
#10 screws that require 5/32”
pilot holes

Note: Do not mount to a vibrating
Surface

Wiring Termination

rev. 05/09/2014

Fig 3: Mounting Screws LocationFig 2: Mounting Hole Pattern

Current Loop Connection

The ZPT unit requires DC voltage for 4 to 20 mA
current loop output, which is “two-wire” operation.

Current Loop Output Connection

Terminal Function

V+/Power 7 to 40 VDC

GND/4 to 20mA Out 4 to 20 mA Signal Output

Voltage Out Not used

Voltage Output Connection

The ZPT unit allows AC or DC voltage for voltage
output, which is “three-wire” operation.

Voltage Output Connection

Terminal Function

7 to 40 VDC or 18 to 32 VAC

V+/Power

GND/4 to 20mA Out

Voltage Out

(for 0 to 5 or 1 to 5 VDC Output)

13 to 40 VDC or 18 to 32 VAC
(for 0 to 10 or 2 to 10 VDC Output)

To controller Ground
[GND or Common]

Voltage Output, Pressure Signal,
referenced to GND

Note: Wiring plug removed for

Wiring Terminals

clarity. Wiring plug shown in Fig 1.

Fig 4: Wiring Terminals Inside Enclosure Cover

Setup

Start

Button

NOTE: The connectors use a rising block screw terminal to hold the wires. It is possible for the block to be in a
partially up position allowing the wire to be inserted under the block. Be sure that the connector screws are turned
fully counterclockwise before inserting the wire. Lightly tug on each wire after tightening to verify proper termination.

Specications subject to change without notice.

Building Automation Products, Inc., 750 North Royal Avenue, Gays Mills, WI 54631 USA

Tel:[phone] • Fax[phone] • E-mail:[e-mail] • Web:www.bapihvac.com

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