BAPI 33128 Fixed Range Pressure Sensor FRP Instruction Manual
- May 15, 2024
- BAPI
Table of Contents
Zone Pressure Sensor, Fixed Range (FRP)
Installation and Operation Instructions
33128_ins_FRP.pdf
rev. 02/01/2023
Product Identification and Overview
BAPI’s Fixed Range Pressure Sensor (FRP) is an economical solution for any
cost-conscious application. The FRP features one factory-set pressure range
and one factory-set output range. A single button is used to auto-zero the
unit.
Mounting
Attach the unit to its mounting surface with the four self-tapping #10×3/4”
sheet metal screws through the holes in the mounting feet. The preferred
mounting orientation is with the pressure ports facing down to prevent
condensation from entering the pressure transducer. Do not mount to a
vibrating surface as vibration may cause issues with the accuracy of the
sensing element. See page 2 for an actual size mounting template for the unit.
The two cover latch screws must be installed to achieve an IP66 rating.
After Auto-Zeroing, remove the deadhead tubing and push the system tubing onto
the port nipple without creating any kinks or holes.
If a hole must be cut into the plastic plugs in the ½” NPSM threaded ports of
the BAPI-Box enclosure, it’s recommended to use BAPI’s Clean-Cut Tool. Not
using this tool could cause damage to the electronics of the sensor. See the
Accessories section of BAPI’s website or product catalog for more info on the
Clean-Cut Tool.
Mounting Template
(BAPI recommends creating 5/32” (4mm)
pilot holes for the #10×3/4” self-tapping mounting screws.)
Wiring Termination
| BAPI recommends wiring the product with power disconnected. Proper supply
voltage, polarity and wiring connections are important to a successful
installation. Not observing these recommendations may damage the product and
void the warranty
---|---
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.
| Terminal | Function |
|---|---|
| V+ | Power, referenced to GND See the “Specifications” section on the next page |
for Power specs
GND| To Controller Ground [GND or Common]
VOUT| Voltage Output, Pressure Signal, referenced to GND
Auto-Zero Procedure
The FRP must be mounted at its location prior to auto-zeroing. Auto-Zeroing
must be done after the initial setup, changing mounting orientation or
changing any settings. For most applications, perform an auto-zero whenever it
appears that the sensor has drifted. For critical applications, the unit
should be zeroed 2-3 times a year.
STANDARD UNITS
- Power must be on.
- Detach system tubing and deadhead ports using the supplied tubing or other short length of tubing. Do not kink tubing.
- Press and hold the Auto-Zero button for 1-2 seconds. The Status LED will stop flashing when completed.
- Remove deadhead tubing and reattach system tubing.
UNITS WITH ATTACHED TUBE (See Fig. 6)
- Power must be on.
- Disconnect the system tubing from the Low Pressure brass fitting and attach the supplied 6” deadhead tubing to the brass fitting.
- Disconnect the short clear tubing from the 90° black Attached Tube fitting with your fingers. A pliers may cut the tubing.
- Connect the clear tubing to the supplied straight black fitting on the 6” tubing. Do not kink the tubing.
- Press and hold the Auto-Zero button for 1-2 seconds. The Status LED will stop flashing when completed.
- Disconnect the deadhead tubing and reattach the clear tubing and system tubing. Confirm that the clear tubing is pressed all of the way onto the fitting and that it is not kinked.
Multicolor LED Status Indicator
The LED is on whenever power is applied. The LED color varies according to the following list:
- Red = Over pressure
- Green = Top half of span
- Amber = Center of span
- Blue = Bottom half of span
- Purple = Under pressure.
Diagnostics
Possible Problem
LED does not light Output not tracking pressure properly
Possible Solutions
Check power connections for proper power Remove pressure from ports and
perform auto-zero procedure
Specifications
Power:
For All Outputs and Ranges: 18 to 28 VAC @ 1 VA Max POWER FOR STANDARD
PRESSURE RANGES (Ranges FR51-55, FR61-65, FR56-60, FR66-70)
For 0 to 5 VDC Output Units:
10 to 32 VDC @ 12 mA max (10 to 24 VDC recommended)
For 0 to 10 VDC Output Units:
18 to 32 VDC @ 12 mA max (18 to 24 VDC recommended) POWER FOR LOW PRESSURE
RANGES (RANGES FR91, FR73-75, FR82-85, FR96, FR78-80, FR87-90)
0 to 5 VDC Output Units:
9 to 32 VDC @ 10 mA max (9 to 24 VDC recommended)
0 to 10 VDC Output Units:
13 to 32 VDC @ 10mA max (13 to 24 VDC recommended)
Accuracy at 72°F:
±1.0% FS of input range for units ≥ 0.25” WC (62.5 Pa) ±0.5% FS of input
range for units < 0.25” WC (62.5 Pa)
Stability: ±0.25% F.S. per year
Storage Temperature: -40 to 185°F (-40 to 85°C)
Environmental Operating Range: -4 to 140°F (-20 to 60°C)
Humidity: 0 to 95% RH, non-condensing
Wiring: 3 wires (AC or DC powered, Voltage out)
Overpressure: Proof 300” WC (74 kPa)
Port Size: 1/4” barb
Enclosure Material: UV-resistant Polycarb., UL94 V-0
Enclosure Rating: IP66, NEMA 4
Media: Clean, dry, non-corrosive gases
Pressure & Output Ranges: Specified at time of order
Status Indicator: 5-color LED
Agency: RoHS
Ranges: Imperial or metric units, specified at time of order
Specifications subject to change without notice.
Building Automation Products, Inc., 750
North Royal Avenue, Gays Mills, WI 54631 USA
Tel: +1-608-735-4800
Fax: +1-608-735-4804
E-mail:
sales@bapihvac.com
Web:www.bapihvac.com
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