Product Identication
Dimensions
Product Overview
The PX3 transducer c an measure either air pressu re or velocity with the i p of a switch.
The PX3 is available in thre e installation congura tions: duct, panel or unive rsal. Duct and
panel models have two p ressure and velocity op tions: 0-1 in. WC / 0-3,000 ft/min or
1-10 in. WC / 3,000-6,000 ft/min w ith four eld-selec table sub-ranges. T he universal
model comes in one pre ssure/velocity ran ge: 0-10 in. WC / 0-7,000 ft/min w ith seven
eld-selec table sub-ranges for p ressure and eight for veloci ty. All variants are available
with and without di splay. The PX3 has an IP65/NEMA 4 environmenta l rating and a 5-year
limited warranty.
PX3 Series
Differential Pressure / Air Velocity Transducer
in. (mm)
PX3
Patent Pending
Media Compatibility Dry air or iner t gas
Input Power Three-wire Volt mod e: 24 Vac or 12-30 Vdc*
Two-wire mA mode: 12-30 Vdc*
Output Power Field-selectable: 2-wire, loop-powered 4-20 mA
Minimum input vol tage for 4 to 20 mA operatio n: 250 Ω loop = 12 Vdc; 500 Ω loop = 19 Vdc
(DC only, clipped and c apped), 24 Vac/dc or 3-wire 0 -5V/0-10V
Minimum load resi stance for Volt operati on: 5 kΩ
01 Pressure
Range
Pressure
Mode
Unidirectio nal: 0.1/0.25/0.5/1 in. WC FS, switch selec table
Bidirectio nal: ±0.1/±0.25/±0.5/±1 in. WC FS, switch selectab le
Unidirectio nal: 25/50/100/250 Pa FS, switch selec table
Bidirectio nal: ±25/±50/±100/±250 Pa FS, switch selectabl e
Velocity
Mode
500/1,000/2,000/3,000 ft/min
2.5/5/10/15 m/s
02 Pressure
Range
Pressure
Mode
Unidirectio nal: 1.0/2.5/5/10 in. WC FS, switch selec table
Bidirectio nal: ±1.0/±2.5/±5/±10 in. WC FS, switch sel ectable
Unidirectio nal: 250/500/1,000/2,500 Pa FS, s witch selectabl e
Bidirectio nal: ±250/±500/±1,000/±2,500 Pa FS, switch se lectable
Velocity
Mode
3,000/4,000/5,000/6,000 ft/min
15/20/25/30 m/s
05 Pressure
Range
Pressure
Mode
Unidire ctional: 0 .1/0.25/0.5/1/2.5/5/10 in . WC FS, switc h select able
Bidire ction al: ±0.1/±0.2 5/±0.5/±1/±2.5/± 5/±10 in. WC FS, sw itch sel ectab le
Unidirec tional: 25/50/100/250/500/1,00 0/2,500 Pa FS, sw itch selecta ble
Bidire ction al: ±25/±50/±100/± 250/±500 k/±1,000/± 2,500 Pa F S, switch select able
Velocity
Mode
500/1,000/2,000/3,000/4,000/5,000/6,000/7,000 ft/min
2.5/5/10/15/20/25/3 0/35 m/s
Response Time Standard: T95 in 20 sec, Fas t: T95 in 2 sec, DIP switch s electable
Mode Unidirectional or bidirectional, DIP switch selectable
Display (Option) Pressure mode: Signed 3 -1/2 digit LCD, indicates pressure, overran ge indicator
Velocity mode : Signed 4-1/2 digit LCD, indicates velo city, overrange indicat or
Proof Pressure 3 psid (20, 600 Pa)
Burst Pressure 5 psid (34, 500 Pa)
Pressure Mode Accuracy ±1% FS (combined lin earity and hysteres is)
Velocity Mode Accuracy ±90 ft/min (±0.45 m/s) plus 5% of measu red value**
Temperature Eect 1” (250 Pa) models: 0.05%/°C; 10” (2,50 0 Pa) models: 0.01%/°C
(Relative to 25 °C) 0 to 50 ° C (32 to 122 °F)
Zero Drif t (1-year) 1” (250 Pa) models: 2.0% max. ; 10” (2,500 Pa) models: 0.5% ma x.
Zero Adjust Pushbutton auto-zero and digital input (2-position terminal block)
Operating Environment 0 to 60 °C (32 to 140 °F)
Altitude of Operation 0 to 3,000 m
Pollution Degree 2
Humidity Range 100% RH, non-condensing
Mounting Location For indoor use only.
Fittings Brass barb; 0.24” (6.1 mm) o.d.
Suggested Cable Shielded:
Belden #9939 (22 AWG) 3-wi re multi-conduct or (or similar)
Belden #994 0 (22 AWG) 4-wire multi-co nductor (or similar)
Belden #9939 (22 AWG) 5-wi re multi-conduc tor (or similar)
Unshielded:
Belden #84 43 (22 AWG) 3-wire multi-condu ctor (or similar)
Belden #84 44 (22 AWG) 4-wire multi- conductor (or similar)
Belden #84 45 (22 AWG) 5-wire multi-cond uctor (or similar)
Environmental Rating IP65, NEMA 4
Specications
Installation, Wiring
& Conguration
FILTER
LOW
HIGH
AIR FLOW
AIR FLOW
AIR FLOW
AIR FLOW
Static Pressure
Panel Installations
Duct Installations
Dierential Pressure
1. Pl an the installation. Panel or du ct mount?
For velocity app lications, use the VFXP Se ries air velocity/measurem ent probe or AA18,
AA19 or AA20 velocity pitot tub es. For use with the PX3P (panel) a nd PX3U (universal)
models in Velocity mode only. Sold separately.
2. For duc t mount applications, thre ad the probe into the back of the d evice housing, as
shown in the dimensional drawing.
3. Congu re the internal tubing for th e selected installat ion method as describe d below.
Duct mount tubing conguration:
a. Connect the rig ht-side tube to the rear brass bar b marked as “-” on the
underside of the device housing.
b. Connect the lef t-side tube to the probe in the b ack of the device housing.
Panel mount tubing conguration:
a. Connect the rig ht-side tube to the rear brass bar b marked as “-” on the
underside of the device housing.
b. Connect the lef t-side tube to the front bra ss barb marked as “+” on the
underside of the device housing.
Installation, Wiring
& Conguration (cont.)
Specications (cont.)
4. Mount the transduce r (see the screw hole diagram be low).
5. For applicatio ns using conduit, remove the cab le gland nut on the bottom of th e unit.
Thread a standard 1/2-inch N PT female threaded coupler o nto the body of the cable
gland. Connect the o pposite end of the coupler to th e conduit.
NOTICE
•
This product is not intended for life or
safety applications.
• Do not install this product in hazardous
or classied locations.
•
Read and understand the instructions
before installing this product.
• Turn o all power supplying equipment
before working on it.
•
The installer is responsible for
conformance to all applicable codes.
If this product is used in a manner not specied
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.
AIR FLOW
Z207504-0D Pa ge 3 of 8
©2018
Veris Indus tries 12345 SW L eveton Dri ve, Tualatin, O R 97062 USA / 800. 354.8556 or +1.503.598.456 4 / suppor t@veris .com 0518
Alta Labs, Ener cept, Enspec tor, Hawkeye, Trus tat, Aerosp ond, Veris, an d the Veris ‘V ’ logo are trad emarks or r egistere d trademark s of Veris Indu stries, L. L.C.
in the USA and/or ot her countri es. Other co mpanies’ t rademark s are hereby ac knowledg ed to belong to t heir respe ctive owne rs.
Z207504-0D Pa ge 1 of 8
©2018
Veris Indus tries 12345 SW L eveton Dri ve, Tualatin, O R 97062 USA / 800. 354.8556 or +1.503.598.456 4 / suppor t@veris .com 0518
Alta Labs, Ener cept, Enspec tor, Hawkeye, Trus tat, Aerosp ond, Veris, an d the Veris ‘V ’ logo are trad emarks or r egistere d trademark s of Veris Indu stries, L. L.C.
in the USA and/or ot her countri es. Other co mpanies’ t rademark s are hereby ac knowledg ed to belong to t heir respe ctive owne rs.
Z207504-0D Pa ge 4 of 8
©2018
Veris Indus tries 12345 SW L eveton Dri ve, Tualatin, O R 97062 USA / 800. 354.8556 or +1.503.598.456 4 / suppor t@veris .com 0518
Alta Labs, Ener cept, Enspec tor, Hawkeye, Trus tat, Aerosp ond, Veris, an d the Veris ‘V ’ logo are trad emarks or r egistere d trademark s of Veris Indu stries, L. L.C.
in the USA and/or ot her countri es. Other co mpanies’ t rademark s are hereby ac knowledg ed to belong to t heir respe ctive owne rs.
Z207504-0D Pa ge 2 of 8
©2018
Veris Indus tries 12345 SW L eveton Dri ve, Tualatin, O R 97062 USA / 800. 354.8556 or +1.503.598.456 4 / suppor t@veris .com 0518
Alta Labs, Ener cept, Enspec tor, Hawkeye, Trus tat, Aerosp ond, Veris, an d the Veris ‘V ’ logo are trad emarks or r egistere d trademark s of Veris Indu stries, L. L.C.
in the USA and/or ot her countri es. Other co mpanies’ t rademark s are hereby ac knowledg ed to belong to t heir respe ctive owne rs.
Velocity with VFXP Probe Velocity with AA18/AA19/AA20 Pitot Tube
AIR FLOW
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(42)
1.6
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3.5
(88)
3.5
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4.4
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7.4
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