Honeywell P7635 User manual

INSTALLATION INSTRUCTIONS
31-00147-01
20
P7635 Differential Air Pressure
Sensors
PRECAUTIONS
• Remove Power Before Wiring. Never Connect Or
Disconnect Wiring With The Power Applied. Do Not
Allow Live Wires To Touch The Circuit Board.
• An Isolation Transformer Is Recommended When
Powering The Device With 24vac.
• Do Not Run The Wiring In Any Conduit With Line
Voltage.
• Failure To Wire Devices With The Correct Polarity
When Using A Shared Transformer May Result In
Damage To Any Device Powered By The Shared
Transformer.
• Do Not Remove The Cover. All User Features Are
Accessible From The Outside Of The Unit
MOUNTING
Using the two #8 x 3/4-in. self-drilling mounting screws,
or the integrated 35mm DIN rail clip on the back, mount
the unit vertically with the brass fittings pointing toward
the ground.
Attach the unit to the mounting surface using the two
mounting openings located on the top and bottom
flanges. This ensures that any condensation that may
form in the tubing does not have an effect on the pressure
sensor. If mounting the unit horizontally, a slight zero shift
may occur and care must be taken to prevent moisture
from building up in the sensor.
WIRING
Shielded cable with 16 to 22AWG conductors is
recommended. Use the Wiring Connections table below to
determine the proper wiring for your application. Insert the
wire into the depluggable terminal block sockets and
tighten the screws. In some circumstances, it may be
easier to remove the terminal blocks while connecting the
wires.
NOTE: When using a shielded cable, be sure to connect
only (1) end of the shield to ground at the control-
ler. Connecting both ends of the shield to ground
may cause a ground loop. When removing the
shield from the sensor end, make sure to properly
trim the shield to prevent any chance of shorting.
Pressure Connections
The recommended connection tubing is ¼” push-on
tubing (1/8” – 3/16” I.D.). Keep the tubing runs as short as
possible so as to not affect the response time.
1-11/32
(34)
3-1/2
(89)
M37385
Z E R O
2-3/32 (53)
23/64
(9)
3/8
(10)
7/64
(2)
Table 1. Wiring Connections
Output signal
Supply
Voltage Wire Connections
VDC AC/DC VIN GND OUT
mA AC VIN GND OUT
mA DC VIN OUT

P7635 DIFFERENTIAL AIR PRESSURE SENSORS
31-00147—01 2
Zero Adjustment
The Zero adjustment should only be performed with no
pressure applied.
Small positive or negative pressure offsets can be
removed using the Zero push button. Make sure that there
is no pressure at the HI and LO pressure fittings.
Additionally, a small piece of tubing can be connected
between the HI and LO brass fittings to neutralize any
external pressure effects. Press and hold the Zero button
for 5 seconds. The P7635 will enter zero mode AFTER
push button is released.
SPECIFICATIONS
Supply Voltage
250 Ohm Load: 16-36 VDC / 24VAC ± 10%, 50/60 Hz
0-5 VDC: 12-36 VDC / 24VAC ± 10%, 50/60 Hz
500 Ohm Load: 21-36 VDC / 24VAC ± 10%, 50/60 Hz
0-10 VDC: 16-36 VDC / 24VAC ± 10%, 50/60 Hz
Supply Current mA [Power Consumption]
4-20 mA Output: 23 mA minimum [0.83 VA]
VDC Output Signals: 5 mA maximum [0.18 VA]
Output Signals
4-20 mA: 2-Wire Loop Powered (Output limited to 20.5
mA Max.)
4-20 mA: 3-Wire, VAC Powered (Output limited to 20.5 mA
Max.)
0-5 VDC or 0-10 VDC: 3-Wire, VAC, or VDC Powered (Out-
put limited to 5.25 and 10.25 VDC)
Sensor Accuracy: ± 0.5 % FSO (Standard)
NOTE: Accuracy includes linearity, hysteresis, and
repeatability.
Operating Temperature Range: 32 to 185°F (0 to 85°C)
Compensated Temperature Range: 32 to 122°F (0 to
50°C)
Humidity: 10 to 95% RH, non-condensing
Thermal Effects: ± 0.056% FSO/ºF (± 0.10% FSO/ºC)
NOTE: Shift is relative to 77ºF (25ºC)
Warm Up Time: 15 minutes
Response Time (T95): 8 seconds
Output Update Range: 1 Second intervals
Zero Function: Pushbutton Zero Function (Recom-
mended after 15 minutes warm up)
Proof Pressure [Burst Pressure]
Ranges < 1” wc (248.84 Pa): Proof: 270” wc (67.2 kPa)
[Burst: 415” wc (103.3 kPa)]
Ranges > 1” wc (0.2488 kPa) to < 10” wc (2.488 kPa):
Proof: 350” wc (87.12 kPa)
[Burst: 550” wc (136.9 kPa)]
Media Types: Dry air or inert non-conductive gases
Din Rail Mounting: 35 mm (U.S. Patent No. 7,416,421)
Wire Connections [Wire Size]: 3 Position de-pluggable
screw terminal block
[14 AWG (1.628 mm2) to 24 AWG (0.5105 mm2)]
Terminal Block Torque Rating: 4.43 to 5.31 in-lbs.
(0.5 to 0.6 Nm)
Tubing Size Accepted:
0.250” (6.35 mm) O.D. x 0.170” (4.318 mm) I.D.
Push-On Flexible Poly Tubing
Enclosure Material [Flame Rating]: Polycarbonate [UL
94V-0]
Approvals: CE, RoHS2, WEEE
WEEE Directive
At the end of their useful life packaging and product
should be disposed of via a suitable recycling center. Do
not dispose of with household waste. Do not burn.

P7635 DIFFERENTIAL AIR PRESSURE SENSORS
331-00147—01
Table 2.
Part Pressure Range Units Range Accuracy (%) Output
P7635D01M 0 to 0.1 in wc Uni 0.5 4-20mA
P7635D025M 0 to 0.25 in wc Uni 0.5 4-20mA
P7635D05M 0 to 0.5 in wc Uni 0.5 4-20mA
P7635D1M 0 to 1 in wc Uni 0.5 4-20mA
P7635D2M 0 to 2 in wc Uni 0.5 4-20mA
P7635D5M 0 to 5 in wc Uni 0.5 4-20mA
P7635D10M 0 to 10 in wc Uni 0.5 4-20mA
P7635B01M -0.1 to 0.1 in wc bi 0.5 4-20mA
P7635B025M -0.25 to 0.25 in wc bi 0.5 4-20mA
P7635B05M -0.5 to 0.5 in wc bi 0.5 4-20mA
P7635B1M -1 to 1 in wc bi 0.5 4-20mA
P7635D2V 0 to 2 in wc Uni 0.5 0-10Vdc

P7635 DIFFERENTIAL AIR PRESSURE SENSORS
Home and Building Technologies
In the U.S.:
Honeywell
715 Peachtree Street NE
Atlanta, GA 30308
customer.honeywell.com
® U.S. Registered Trademark
© 2018 Honeywell International Inc.
31-00147—01 M.S. 05-18
Printed in United States
By using this Honeywell literature, you agree that Honeywell will have no liability for any damages arising out of your use or
modification to, the literature. You will defend and indemnify Honeywell, its affiliates and subsidiaries, from and against any
liability, cost, or damages, including attorneys’ fees, arising out of, or resulting from, any modification to the literature by you.
"󴉃󱳊󱮧󸀮󱯜󵵙󱯇󱝎󸽩󱝾󽘜󵵜󱘗󲀯󱞄󱠇󸤥󱲡󹢔󹄡󸉔󴭁󵵙󹢔󱳷󱡋󵫞󵙀󸢹
All other components not listed in the table do not contain restricted substances above the threshold level.
REGULATORY INFORMATION
FCC REGULATIONS
§ 15.19 (a)(3)
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.
IC REGULATIONS
RSS-GEN
This device complies with Industry Canada’s license-
exempt RSSs.
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.
Le présent appareil est conforme aux CNR d’Industrie
Canada applicables aux appareils radio exempts de
licence. L’exploitation est autorisée aux deux conditions
suivantes :
1. l’appareil ne doit pas produire de brouillage;
2. l’utilisateur de l’appareil doit accepter tout brouil-
lage radioélectrique subi, même si le brouillage est
susceptible d’en compromettre le fonctionnement.
FCC Warning (Part 15.21) (USA
only)
Changes or modifications not expressly approved by the
party responsible for compliance could void the user’s
authority to operate the equipment.
󸽩󱝾󱿽󶌇
Component Name
󴈄󲸓󵙀󸢹
Hazardous Substances
󹚮 (Pb)
Lead (Pb)
󴭰 (Hg)
Mercury (Hg)
󹜲 (Cd)
Cadmium (Cd)
六价铬 (Cr6+)
Chromium VI
Compounds (Cr6+)
󲡕󴼤󶾌󷔦 (PBB)
Polybrominated
Biphenyls (PBB)
󲡕󴼤󱛔󷔦󹂮 (PBDE)
Polybrominated Diphenyl
Ethers (PBDE)
Brass Hose Barbs OO O O O O
Brass Inserts OO O O O O
󴉆󸀮󴏵󱡽󳮹 SJ/T 11364 󵵙󸊿󲷢󶴹󱳷
This table is prepared in accordance with the provisions of SJ/T 11364.
O: 󸀮󶆺󸛋󴈄󲸓󵙀󸢹󲔩󸛋󸽩󱝾󳧟󴈄󲕓󸢹󴉿󳾒󱙆󵵙󲀯󹄡󲕓󲔩 GB/T 26572 󸊿󲷢󵵙󹢔󹄡󸉔󴭁󱝥󱘕
Indicates that said hazardous substance contained in all of the homogeneous materials for this part is below the limit requirement
of GB/T 26572.
X: 󸀮󶆺󸛋󴈄󲸓󵙀󸢹󷋼󲻒󲔩󸛋󸽩󱝾󵵙󴍅󱘈󲕓󸢹󴉿󳾒󱙆󵵙󲀯󹄡󸤥󱲡 GB/T 26572 󸊿󲷢󵵙󹢔󹄡󸉔󴭁
Indicates that said hazardous substance contained in all of the homogeneous materials for this part is above the limit requirement
of GB/T 26572.