VERIS PX3 Series Bluetooth Differential Pressure Air Velocity Transducer Installation Guide

VERIS PX3 Series Bluetooth Differential Pressure Air Velocity Transducer

Specifications

• Media Compatibility: Dry air or inert gas
• Output Power: Field-selectable: 2-wire, loop-powered 4-20 mA
• Pressure Range 1: Velocity  500/1,000/2,000/3,000 ft/min Mode 2.5/5/10/15 m/s
• Pressure Range 2: Velocity 3,000/4,000/5,000/6,000 ft/min Mode 15/20/25/30/35 m/s
• Pressure Range 5: Velocity 500/1000/2000/3000/4000/5000/6000/7000 ft/min Mode2.5/5/10/15/20/25/30/35 m/s
• Response Time: Standard: T95 in 20 sec, Fast: T95 in 2 sec, DIP switch selectable
• Mode: Unidirectional or bidirectional, DIP switch selectable
• Display (Option): Pressure mode: Signed 3-1/2 digit LCD, indicates pressure, overrange indicator Velocity mode: Signed 4-1/2 digit LCD, indicates velocity, overrange indicator
• Proof Pressure: 1.44 psid (9,953 Pa)
• Burst Pressure: 4.33 psid (29,860 Pa)
• Zero Adjust: Pushbutton auto-zero and digital input (2-pos terminal block)
• Altitude of Operation: 0 to 3000 m
• Pollution Degree: 2
• Humidity Range: 100% RH, non-condensing

Installation

Before installing the PX3 series transducer, ensure that you have read and understood the installation guide provided. The product is available in three installation configurations: duct, panel, or universal. Choose the appropriate configuration based on our requirements.

Installation Guide

WARNING
HAZARD OF ELECTRIC SHOCK, EXPLOSION OR ARC FLASH

• Apply appropriate personal protective equipment (PPE) and follow safe electrical work practices. See NFPA 70E or CSA Z462.
• This equipment must only be installed and serviced by qualified electrical personnel.
• Turn off all power supplying this equipment before working on or inside equipment.
• Always use a properly rated voltage sensing device to confirm power is off. Replace all devices, doors and covers before turning on power to this equipment.
• Failure to follow these instructions can result in death, serious injury or equipment damage.
• This product is intended for use in HVAC and building environmental control applications. It is not intended for direct medical monitoring of patients.
• Read and understand these instructions before installing this product.
• The installer is responsible for all applicable codes.
• If this product is used in a manner not specified by the manufacturer, the protection provided by the product may be impaired. No responsibility is assumed by the manufacturer for any consequences arising out of the use of this material.

PX3 Series
Bluetooth® Differential Pressure / Air Velocity Transducer

Product Overview

The PX3 transducer can measure either air pressure or velocity with the flip of a switch. The PX3 is available in three installation configurations: duct, panel or universal. Duct and panel models have two pressure and velocity ranges: 0-1 in. WC / 0-3,000 ft/min or 1-10 in. WC / 3,000-6,000 ft/min with four field-selectable sub-ranges. The universal model comes in one pressure/velocity range: 0-10 in. WC / 0-7,000 ft/min with seven field- selectable sub-ranges for pressure and eight for velocity. All variants are available with and without display. The PX3 has an IP65/NEMA 4 environmental rating and a 5-year limited warranty.
The Veris Sensors App provides the ability to connect to a device and configure a variety of field-selectable parameters remotely from a smartphone via Bluetooth technology. The app allows users to create and store commonly used parameters that will reduce commissioning time and provide assurance that all parameters are properly configured with no call backs. The app can also create a trend log while connected, providing important data for troubleshooting purposes. iOS® users can download the app through the iOS App Store on their smart device. Android users can download the app through the Google Play™ store. For instructions on downloading and operating the app, see the Veris Sensors App User’s Guide and Veris Sensors App Quick Start Guide available on the Veris website.

Product Identification

For a detailed part number matrix, see the PX3 Series Datasheet.

Dimensions
in. (mm)

Specifications

mode: 12-30 Vdc*
Output Power| Field-selectable: 2-wire, loop-powered 4-20 mA

Minimum input voltage for 4 to 20 mA operation: 250 Ω loop = 12 Vdc; 500 Ω loop = 19 Vdc (DC only, clipped and capped), 24 Vac/dc or 3-wire 0-5V/0-10V

Minimum load resistance for Volt operation: 5 kΩ

Pressure Range 1| Pressure Mode| Unidirectional: 0.1/0.25/0.5/1.0 in. WC, switch selectable Bidirectional: ±0.1/±0.25/±0.5/±1.0 in. WC, switch selectable Unidirectional: 25 Pa/50 Pa/100 Pa/250 Pa, switch selectable Bidirectional: ±25 Pa/±50 Pa/±100 Pa/±250 Pa, switch selectable
Velocity Mode| 500/1,000/2,000/3,000 ft/min

2.5/5/10/15 m/s

Pressure Range 2| Pressure Mode| Unidirectional: 1.0/2.5/5/10 in. WC, switch selectable Bidirectional: ±1.0/±2.5/±5/±10 in. WC, switch selectable Unidirectional: 250/500/1,000/2,500 Pa, switch selectable Bidirectional: ±250/±500/±1,000/±2,500 Pa, switch selectable
Velocity Mode| 3,000/4,000/5,000/6,000 ft/min

15/20/25/30/35 m/s

Pressure Range 5| Pressure Mode| Unidirectional: 0.1/0.25/0.5/1/2.5/5/10 in. WC, switch selectable Bidirectional: ±0.1/±0.25/±0.5/±1/±2.5/±5/±10 in. WC, switch selectable Unidirectional: 25/50/100/250/500/1,000/2,500 Pa, switch selectable Bidirectional: ±25/±50/±100/±250/±500/±1,000/±2,500 Pa, switch selectable
Velocity Mode| 500/1000/2000/3000/4000/5000/6000/7000 ft/min

2.5/5/10/15/20/25/30/35 m/s

Response Time| Standard: T95 in 20 sec, Fast: T95 in 2 sec, DIP switch selectable
Mode| Unidirectional or bidirectional, DIP switch selectable
Display (Option)| Pressure mode: Signed 3-1/2 digit LCD, indicates pressure, overrange indicator Velocity mode: Signed 4-1/2 digit LCD, indicates velocity, overrange indicator
Proof Pressure| 1.44 psid (9,953 Pa)
Burst Pressure| 4.33 psid (29,860 Pa)
Pressure Mode Accuracy| ±1% FS (combined linearity and hysteresis)
Velocity Mode Accuracy| ±90 ft/min (±0.45 m/s) plus 5% of measured value
Temperature Effect| 0.00048 in. WC/°C (0.12 Pa/°C) relative to 25 °C, 0 to 50 °C (32 to 122 °F)
Zero Drift (1-year)**| ±5.0 Pa (±0.020 in WC) max.
Zero Adjust| Pushbutton auto-zero and digital input (2-pos terminal block)
Operating Environment| -20 to 60 °C (-4 to 140 °F)*
Altitude of Operation| 0 to 3000 m
Pollution Degree| 2
Humidity Range| 100% RH, non-condensing
Mounting Location| For indoor or outdoor use (display will not function below 0 °C (32 °F))
Fittings| Brass barb; 0.24” (6.1 mm) o.d.
Suggested Cable**| Shielded:

Belden #9939 (22 AWG) 3-wire multi-conductor (or similar) Belden #9940 (22 AWG) 4-wire multi-conductor (or similar) Belden #9939 (22 AWG) 5-wire multi- conductor (or similar)

Unshielded:

Belden #8443 (22 AWG) 3-wire multi-conductor (or similar) Belden #8444 (22 AWG) 4-wire multi-conductor (or similar) Belden #8445 (22 AWG) 5-wire multi- conductor (or similar)

Bluetooth Frequency

Range

| 2.402 to 2.480 GHz (Bluetooth version 4.2), enabled by DIP switch, enabled by DIP switch
Maximum Output Power| 0 dBm
---|---
Limited Warranty| 5 years
Environmental Rating| IP65, NEMA 4
Flammability Rating| UL 94 5VA fire retardant ABS, plenum rated

EMC Conformance: EN 61000-6-3 and A1, Class B, EN 61000-6-1 and EN61326-1. * Class 2/II power source.

• For measured values between 200 and 7000 ft/min (1 and 35 m/s).
• Display will not function below 0 °C (32 °F).
• Can be compensated for using the Zero Reset function.

Installation, Wiring & Configuration

1. Plan the installation. Panel or duct mount?
   For velocity applications, use the VFXP Series air velocity/measurement probe or AA18, AA19 or AA20 velocity pitot tubes. For use with the PX3P (panel) and PX3U (universal) models in Velocity mode only. Sold separately.

2. For duct mount applications, thread the probe into the back of the device housing, as shown in the dimensional drawing. Configure the internal tubing for the selected installation method as described below (see diagrams next page).
   Duct mount tubing configuration:

   • Connect sensor port A to the rear brass barb marked as “-” on the underside of the device housing.

   • Connect sensor port B to the probe in the back of the device housing.
     Panel mount tubing configuration:

   • Connect sensor port A to the rear brass barb marked as “-” on the underside of the device housing.

   • Connect sensor port B to the front brass barb marked as “+” on the underside of the device housing.
     

3. Mount the transducer (see the screw hole diagram below).
   

4. For applications using conduit, remove the cable gland nut on the bottom of the unit. Thread a standard 1/2-inch NPT female threaded coupler onto the body of the cable gland. Connect the opposite end of the coupler to the conduit.

5. Set DIP switches to desired settings.*

   • DIP Switch 1: Scale
   • ON = Pascal (m/s)
   • OFF = in. WC (ft/min)
   • DIP Switch 2: Mode
   • ON = Velocity
   • OFF = Pressure
   • DIP Switch 3: Direction**
   • ON = Unidirectional
   • OFF = Bidirectional
   • DIP Switch 4: Response
   • ON = Slow
   • OFF = Fast
   • *DIP switches are all set to OFF by the factory.
   • **Velocity mode is unidirectional regardless of DIP switch setting.
   • DIP Switch 5: Output
   • ON = 4-20 mA
   • OFF = Voltage
   • DIP Switch 6: Volt Scale
   • ON = 0-5 Vdc
   • OFF = 0-10 Vdc
   • DIP Switch 7: Wireless
   • ON = Disabled
   • OFF = Enabled
   • DIP Switch 8: Unused
     DIP Switch Settings

6. Set rotary switch to the desired setting. Align the arrow (not the slot) on the rotary switch to the desired full-scale range. LCD models momentarily indicate the selected range.

Rotary Switch Settings
Range 1 Model, Field Selectable (WC / ft/min or Pa / m/s)

| (P) Pressure Mode
---|---
0| 0 to 0.1 in. WC
1| 0 to 0.25 in. WC
2| 0 to 0.5 in. WC
3| 0 to 1 in. WC
4| 0 to 0.1 in. WC
5| 0 to 0.25 in. WC
6| 0 to 0.5 in. WC
7| 0 to 1 in. WC
| (V) Velocity Mode
---|---
0| 0 to 500 ft/min
1| 0 to 1,000 ft/min
2| 0 to 2,000 ft/min
3| 0 to 3,000 ft/min
4| 0 to 500 ft/min
5| 0 to 1,000 ft/min
6| 0 to 2,000 ft/min
7| 0 to 3,000 ft/min

| (P) Pressure Mode
---|---
0| 0 to 25 Pa
1| 0 to 50 Pa
2| 0 to 100 Pa
3| 0 to 250 Pa
4| 0 to 25 Pa
5| 0 to 50 Pa
6| 0 to 100 Pa
7| 0 to 250 Pa
| (V) Velocity Mode
---|---
0| 0 to 2.5 m/s
1| 0 to 5 m/s
2| 0 to 10 m/s
3| 0 to 15 m/s
4| 0 to 2.5 m/s
5| 0 to 5 m/s
6| 0 to 10 m/s
7| 0 to 15 m/s

Range 2 Model, Field Selectable (WC / ft/min or Pa / m/s)

| (P) Pressure Mode
---|---
0| 0 to 1 in. WC
1| 0 to 2.5 in. WC
2| 0 to 5 in. WC
3| 0 to 10 in. WC
4| 0 to 1 in. WC
5| 0 to 2.5 in. WC
6| 0 to 5 in. WC
7| 0 to 10 in. WC
| (V) Velocity Mode
---|---
0| 0 to 3,000 ft/min
1| 0 to 4,000 ft/min
2| 0 to 5,000 ft/min
3| 0 to 6,000 ft/min
4| 0 to 3,000 ft/min
5| 0 to 4,000 ft/min
6| 0 to 5,000 ft/min
7| 0 to 6,000 ft/min
| (P) Pressure Mode
---|---
0| 0 to 250 Pa
1| 0 to 500 Pa
2| 0 to 1,000 Pa
3| 0 to 2,500 Pa
4| 0 to 250 Pa
5| 0 to 500 Pa
6| 0 to 1,000 Pa
7| 0 to 2,500 Pa
| (V) Velocity Mode
---|---
0| 0 to 15 m/s
1| 0 to 20 m/s
2| 0 to 25 m/s
3| 0 to 30 m/s
4| 0 to 15 m/s
5| 0 to 20 m/s
6| 0 to 25 m/s
7| 0 to 30 m/s

Rotary Switch Settings (cont.)
Range 5 Model, Field Selectable (P) Pressure or (V) Velocity Mode,
Field Selectable (WC / ft/min or Pa / m/s)

| (P) Pressure Mode
---|---
0| 0 to 0.1 in. WC
1| 0 to 0.25 in. WC
2| 0 to 0.5 in. WC
3| 0 to 1 in. WC
4| 0 to 2.5 in. WC
5| 0 to 5 in. WC
6| 0 to 10 in. WC
7| 0 to 10 in. WC
| (V) Velocity Mode
---|---
0| 0 to 500 ft/min
1| 0 to 1,000 ft/min
2| 0 to 2,000 ft/min
3| 0 to 3,000 ft/min
4| 0 to 4,000 ft/min
5| 0 to 5,000 ft/min
6| 0 to 6,000 ft/min
7| 0 to 7,000 ft/min
| (P) Pressure Mode
---|---
0| 0 to 25 Pa
1| 0 to 50 Pa
2| 0 to 100 Pa
3| 0 to 250 Pa
4| 0 to 500 Pa
5| 0 to 1,000 Pa
6| 0 to 2,500 Pa
7| 0 to 2,500 Pa
| (V) Velocity Mode
---|---
0| 0 to 2.5 m/s
1| 0 to 5 m/s
2| 0 to 10 m/s
3| 0 to 15 m/s
4| 0 to 20 m/s
5| 0 to 25 m/s
6| 0 to 30 m/s
7| 0 to 35 m/s

•  Connect the transmitter to the control system and power supply as indicated below. Optional: Connect the ZERO terminals to the digital output (contact closure) of the control system.

• Wait five seconds, then press and hold the ZERO pushbutton for two seconds or provide contact closure on the AUX ZERO terminal. This will reset the output and display to zero pressure. For best accuracy, press the ZERO button while both ports are open to atmospheric pressure. To protect the unit from accidental zero, this feature is enabled only when the detected pressure is within about 0.5 in. WC
  (125 Pa) of factory calibration.

• Connect desired external tubing to the PX3.
  PX3 Series devices employ high performance sensors and sophisticated temperature compensation circuitry. The sensor achieves its best accuracy after an initial warm-up period. During the first few minutes of operation, readings at zero pressure and the lowest pressure ranges may appear erroneous. Following this initial warm-up period, the PX3 device maintains its specified accuracy and stability.

The LCD momentarily indicates range ‘SET’ when a selection is made. Pressure is normally indicated on the display. Units are in inches water column (in. WC), Pascals (Pa) or kilopascals (kPa) as indicated on the display. The display shows ‘OVR’ when the pressure is over range.

Environment-Friendly

This table is made according to SJ/T 11364.
O: indicates that the concentration of hazardous substance in all of the homogeneous materials for this part is below the limit as stipulated in GB/T 26572.
X: indicates that concentration of hazardous substance in at least one of the homogeneous materials used for this part is above the limit as stipulated in GB/T 26572

Z000057-0B

This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:

1. This device may not cause harmful interference, and
2. This device must accept any interference received, including interference that may cause undesired operation.

Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.

This device complies with Industry Canada license-exempt RSS standard(s). Operation is subject to the following two conditions:

1. This device may not cause interference, and
2. This device must accept any interference, including interference that may cause undesired operation of the device.

Z207504-0P Page 7 of 8 ©2023 Veris Industries 12345 SW Leveton Drive, Tualatin, OR 97062 USA / 800.354.8556 or +1.503.598.4564 / support@veris.com Alta Labs, Enercept, Enspector, Hawkeye, Trustat, Aerospond, Veris, and the Veris ‘V’ logo are trademarks or registered trademarks of Veris Industries, L.L.C. in the USA and/or other countries. Other companies’ trademarks are hereby acknowledged to belong to their respective owners.
The Bluetooth word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks is under license.

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