Brooks Instrument IPS122 Series User manual

Installation and Operation Manual
IPS122 Series
Indicating Pressure Switches
Beyond Measure

Essential Instructions
Read before proceeding!
Brooks Instrument designs, manufactures and tests its products to meet many national and international standards. These products must be
properly installed, operated and maintained to ensure they continue to operate within their normal specications. The following instructions
must be adhered to and integrated into your safety program when installing, operating and maintaining Brooks Instrument products.
• To ensure proper performance, use qualied personnel to install, operate, update, program and maintain the product.
• Read all instructions prior to installing, operating and servicing the product. If this instruction manual is not the correct manual, please
see back cover for local sales o󰀩ce contact information. Save this instruction manual for future reference.
WARNING: Do not operate this instrument in excess of the specications listed in the Instruction and Operation Manual.
Failure to heed this warning can result in serious personal injury and / or damage to the equipment.
• If you do not understand any of the instructions, contact your Brooks Instrument representative for clarication.
• Follow all warnings, cautions and instructions marked on and supplied with the product.
WARNING: Prior to installation ensure this instrument has the required approval ratings to meet local and national codes.
Failure to heed this warning can result in serious personal injury and / or damage to the equipment.
• Install your equipment as specied in the installation instructions of the appropriate instruction manual and per applicable local and
national codes. Connect all products to the proper electrical and pressure sources.
• Operation: (1) Slowly initiate ow into the system. Open process valves slowly to avoid ow surges. (2) Check for leaks around the ow
meter inlet and outlet connections. If no leaks are present, bring the system up to the operating pressure.
• Please make sure that the process line pressure is removed prior to service. When replacement parts are required, ensure that
qualied people use replacement parts specied by Brooks Instrument. Unauthorized parts and procedures can a󰀨ect the product’s
performance and place the safe operation of your process at risk. Look-alike substitutions may result in re, electrical hazards or
improper operation.
• Ensure that all equipment doors are closed and protective covers are in place to prevent electrical shock and personal injury, except
when maintenance is being performed by qualied persons.
WARNING: For liquid ow devices, if the inlet and outlet valves adjacent to the devices are to be closed for any reason,
the devices must be completely drained. Failure to do so may result in thermal expansion of the liquid that can rupture the
device and may cause personal injury.
European Pressure Equipment Directive (PED)
All pressure equipment with an internal pressure greater than 0.5 bar (g) and a size larger than 25mm or 1” (inch) falls under the Pressure
Equipment Directive (PED).
• The Specications Section of this manual contains instructions related to the PED directive.
• Products described in this manual are in compliance with EN directive 2014/34/EU.
• All Brooks Instrument Flowmeters fall under uid group 1.
• Products larger than 25mm or 1” (inch) are in compliance with PED category I, II or III.
• Products of 25mm or 1” (inch) or smaller are Sound Engineering Practice (SEP).
European Electromagnetic Compatibility (EMC)
The Brooks Instrument (electric/electronic) equipment bearing the CE mark has been successfully tested to the regulations of the Electro
Magnetic Compatibility (EMC directive 2014/30/EU). Special attention however is required when selecting the signal cable to be used with
CE marked equipment.
Quality of the signal cable, cable glands and connectors:
Brooks Instrument supplies high quality cable(s) which meets the specications for CE certication. If you provide your own signal cable
you should use a cable which is overall completely screened with a 100% shield. “D” or “Circular” type connectors used should be shielded
with a metal shield. If applicable, metal cable glands must be used providing cable screen clamping. The cable screen should be connected
to the metal shell or gland and shielded at both ends over 360 Degrees. The shield should be terminated to an earth ground. Card Edge
Connectors are standard non-metallic. The cables used must be screened with 100% shield to comply with CE certication. The shield
should be terminated to an earth ground. For pin conguration : Please refer to the enclosed Instruction Manual.
ESD (Electrostatic Discharge)
CAUTION: This instrument contains electronic components that are susceptible to damage by static electricity. Proper handling
procedures must be observed during the removal, installation or other handling of internal circuit boards or devices.
Handling Procedure:
1. Power to unit must be removed.
2. Personnel must be grounded, via a wrist strap or other safe, suitable means before any printed circuit card or other internal device is
installed, removed or adjusted.
3. Printed circuit cards must be transported in a conductive container. Boards must not be removed from protective enclosure until immediately
before installation. Removed boards must immediately be placed in protective container for transport, storage or return to factory.
Comments
This instrument is not unique in its content of ESD (electrostatic discharge) sensitive components. Most modern electronic designs contain
components that utilize metal oxide technology (NMOS, SMOS, etc.). Experience has proven that even small amounts of static electricity
can damage or destroy these devices. Damaged components, even though they appear to function properly, exhibit early failure.

3 Installation Manual IPS122 Series
Brooks Instrument Contents
Section 1 Introduction
Product Description .........................................................................................................................4
Specications ..................................................................................................................................5
Section 2 Installation
General............................................................................................................................................ 7
Receipt of Equipment ......................................................................................................................7
Recommended Storage Practice.....................................................................................................7
Return Shipment..............................................................................................................................8
Transit Precautions..........................................................................................................................8
Removal from Storage.....................................................................................................................8
Gas Connections .............................................................................................................................8
Installation .......................................................................................................................................9
Mounting.......................................................................................................................................... 9
Electrical Conguration....................................................................................................................9
Electrical Connections ...................................................................................................................10
Setpoint Adjustment ......................................................................................................................14
Warranty, Local Sales/Service Contact Information .............................................................. Back Cover
Figures
1-1 IPS122 Dimensions................................................................................................................... 6
2-1 IPS122 Internal Jumper Settings.............................................................................................10
2-2 IPS122 Wiring Diagrams ......................................................................................................... 11
2-3 0630149 Entity Drawing, Hazardous Location Applications, Indicating Pressure Switch ........ 12
2-4 0630150 Entity Drawing, Hazardous Location Applications, Indicating Pressure Switch ........ 13

4 Installation Manual IPS122 Series
Brooks Instrument Section 1 Introduction
Product Description
The Brooks IPS122 Series Stainless Steel Indicating Pressure Switch
provides a high-purity, precision pressure gauge and electronic switch
with an adjustable pressure switch setpoint. This compact 2 inch unit
has the ability to operate lights or relays up to a maximum of 12 watts.
Available in a variety of pressure ranges and process connections. This
device provides solid state switching for cleanroom and hazardous
applications.
Approved by Factory Mutual
• Intrinsically safe (Entity) for use in Class I, Division 1, Group A, B, C
and D indoor hazardous (classication) locations.
• Non-incendive for Class I, Division 2, Groups A, B, C and D
indoor hazardous (classication) locations.
This manual is organized into the following sections:
Section 1 - Introduction
Section 2 - Installation
Section A-Essential Instructions
Back Cover - Limited Warranty and Contacts
It is recommended that this manual be read in its entirety before
attempting to operate or repair the Model IPS122 Series.

5 Installation Manual IPS122 Series
Brooks Instrument Section 1 Introduction
Specications

6 Installation Manual IPS122 Series
Brooks Instrument Section 1 Introduction
2.28” [57.9 mm]
FRONT VIEW
1.32” [33.6 mm]
1.32” [33.6 mm]
1.89” [48.0 mm] 2.28” [57.9 mm]
VM FACE SEAL
MALE 1/4”
VSM FACE SEAL
SWIVEL MALE 1/4”
MALE 1/4”
2.20” [55.9 mm]
1.32” [33.6 mm]
2.16” [54.9 mm]
1.18” [30.1 mm]
NPT
1/4“
1.32” [33.6 mm]
1.95” [49.5 mm]
1.88” [47.8 mm]
SIDE VIEW
VSF FACE SEAL
SWIVEL FE
Cable Diameter: 0.23”
Figure 1-1 IPS122 Dimensions

7 Installation Manual IPS122 Series
Brooks Instrument Section 2 Installation
General
This section provides installation instructions for the Brooks® IPS122
Series Indicating Pressure Switch devices. Refer to Section 1 of this
manual for dimensions and process connections.
Receipt of Equipment
When the equipment is received, the outside packing case should be
checked for damage incurred during shipment. If the packing case is
damaged, the local carrier should be notied at once regarding his liability. A
report should be submitted to our Technical Support group via the Service &
Support section of our website BrooksInstrument.com/Service.
Remove the envelope containing the packing list. Carefully remove the
instrument from the packing case. Make sure spare parts are not discarded
with the packing materials. Inspect for damaged or missing parts.
Recommended Storage Practice
If intermediate or long-term storage of equipment is required, it is recommended
that the equipment be stored in accordance with the following:
a. Within the original shipping container.
b. Ambient temperature 21°C (70°F) nominal, 79°C (175°F) maximum
-29°C (-20°F) minimum.
c. Relative humidity 45% nominal, 60% maximum, 25% minimum.

8 Installation Manual IPS122 Series
Brooks Instrument Section 2 Installation
Return Shipment
Prior to returning any instrument to the factory for any reason, visit our
website for instructions on how to obtain a Return Materials Authorization
Number (RMA #) and complete a Decontamination Statement to
accompany it: BrooksInstrument.com/Service. All instruments returned to
Brooks also require a Material Safety Data Sheet (MSDS) for the uid(s)
used in the instrument. Failure to provide this information will delay
processing of the instrument.
Instrument must have been purged in accordance with the following:
Transit Precautions
To safeguard against damage during transit, transport the device to the
installation site in the same container used for transportation from the
factory, if circumstances permit.
Removal from Storage
Upon removal of the device from storage, a visual inspection should be
conducted to verify its “as-received” condition. If the device has been
subject to storage conditions in excess of those recommended (refer to
“Recommended Storage Practice” on p. 7), it should be subjected to a
pneumatic pressure test in accordance with applicable vessel codes.
Gas Connections
Prior to installation, ensure that all piping is clean and free from
obstructions. Install piping in such a manner that permits easy access to
the device if removal becomes necessary.

9 Installation Manual IPS122 Series
Brooks Instrument Section 2 Installation
DO NOT twist the cable so that it turns inside the IPS housing. This may
cause permanant damage to the device.
Failure to follow these procedures may adversely a󰀨ect the product’s
performance and could void the product warranty. Inspect but DO NOT
unwrap any parts until installation. Contact your Brooks representative
with any problems.
In most cases, physical mounting, wiring to the power supply and control
circuit, and setting setpoint is all that is required to complete installation
of the IPS pressure switch as received from the factory. Refer to the tag
on the back of the IPS pressure switch for factory conguration of close
on ascending or close on descending pressure.
For some applications it may be necessary to invert operation of the LED
indicator and/or logic signal conguration to ascending or descending
operation, disassembly is required to change internal jumper switches.
Mounting
Mount the IPS pressure switch to the proper tting in the piping
arrangement following standard piping procedures.
Electrical Conguration
The IPS pressure switch contains two internal “jumper switches” to invert
operating functions. Use needle nose pliers to change the switch jumpers.
(Refer to Figure 2-1)
• LED Indicator
A red LED (light emitting diode) indicates when the pressure setpoint
is reached. Its operation is controlled by jumper switch J1. Changing
the position of the internal jumper switch inverts the operation of the
LED. For example, the LED may be set to turn ON when pressure
either rises above or drops below the setpoint.
•Output Switch - Ascending/Descending Operation
The IPS electronic switch may be congured to Close (turn ON)
when pressure either rises above the setpoint (ascending), or drops
below the set-point. (descending). This operation is controlled by
jumper switch J2.
Installation

10 Installation Manual IPS122 Series
Brooks Instrument Section 2 Installation
Figure 2-1 IPS122 Internal Jumper Settings
Electrical Connections
Refer to the appropriate wiring diagram for wirinig connections to the IPS
pressure switch (Figure 2-2).
Refer to the appropriate wiring diagram for hazardous locations
(Figure 2-3 or Figure 2-4).

11 Installation Manual IPS122 Series
Brooks Instrument Section 2 Installation
Figure 2-2 IPS122 Wiring Diagrams

12 Installation Manual IPS122 Series
Brooks Instrument Section 2 Installation
Figure 2-3 0630149 Entity Drawing, Hazardous Location Applications, Indicating Pressure Switch

13 Installation Manual IPS122 Series
Brooks Instrument Section 2 Installation
Figure 2-4 0630150 Entity Drawing, Hazardous Location Applications, Indicating Pressure Switch

NOTICE
14 Installation Manual IPS122 Series
Brooks Instrument Section 2 Installation
Before operating the device, ensure all uid connections have been
properly tightened and where applicable, all electrical connections have
been properly terminated.
Note: Moving the red-pointer does not change the setpoint. It is merely a
visual reminder of where the setpoint was previously set.
When adjusting the setpoint, DO NOT overtighten the setpoint
adjustment screw in either direction. This may cause permanant
damage to the device.
Setpoint Adjustment
(Typical factory setting is at mid-scale.)
1. Connect the IPS pressure switch to a variable pressure source.
2. Apply pressure equal to the desired setpoint.
3. Slowly turn the setpoint adjustment screw (with a 1/8” or smaller
athead screwdriver only) until the LED indicator on top of the IPS
pressure switch is activated. DO NOT OVERTIGHTEN.
(Refer to Figure 2-1 for adjustment screw location)
• CLOCKWISE to activate the electronic switch to decrease pressure
setpoint.
• COUNTERCLOCKWISE to activate the electronic switch to increase
pressure setpoint.
4. Change the applied pressure until the gauge is within the normal
zone of operating pressure.
5. Slowly continue to change the pressure and verify that the LED
indicator is activated at the desired setpoint.
6. Repeat pressure cycle to verify setting and readjust if necessary.
7. Adjust the red pointer mounted on the lens cover with a small
screwdriver to indicate the setpoint setting.
DO NOT attempt to adjust the red pointer by rotating the cover.
8. On a compound gauge, the zero is indicated by a range on the dial
rather than a setpoint.
9. Clean the non-metallic parts with a damp cloth to avoid electric discharge.

15 Installation Manual IPS122 Series
Brooks Instrument Section 2 Installation
If it becomes necessary to remove the device from the system after
exposure to toxic, pyrophoric, ammable or corrosive gas, purge
the device thoroughly with a dry inert gas such as Nitrogen before
disconnecting gas connections. Failure to correctly purge the device
could result in re, explosion or death. Corrosion or contamination
of the device upon exposure to air may occur.
This instrument contains electronic components that are susceptible
to damage by static electricity. Proper handling procedures must be
observed during the removal, installation or other handling of internal
circuit boards or devices.
No routine maintenance is required on this device.

2023
LIMITED WARRANTY
Visit www.BrooksInstrument.com for the terms and conditions of our limited warranty.
BROOKS SERVICE AND SUPPORT
Brooks is committed to assuring all of our customers receive the ideal ow solution for their application, along with outstanding
service and support to back it up. We operate rst class repair facilities located around the world to provide rapid response and
support. Each location utilizes primary standard calibration equipment to ensure accuracy and reliability for repairs and recalibration
and is certied by our local Weights and Measures Authorities and traceable to the relevant International Standards.
Visit www.BrooksInstrument.com to locate the service location nearest to you.
START-UP SERVICE AND IN-SITU CALIBRATION
Brooks Instrument can provide start-up service prior to operation when required.
For some process applications, where ISO-9001 Quality Certication is important, it is mandatory to verify and/or (re)calibrate
the products periodically. In many cases this service can be provided under in-situ conditions, and the results will be traceable
to the relevant international quality standards.
SEMINARS AND TRAINING
Brooks Instrument can provide seminars and dedicated training to engineers, end users and maintenance persons.
Please contact your nearest sales representative for more details.
Due to Brooks Instrument’s commitment to continuous improvement of our products, all specications are subject to change without notice.
TRADEMARKS
Brooks is a trademark of Brooks Instrument, LLC
All other trademarks are the property of their respective owners.
Installation-Manual-IPS122-EN/541B150AAG/2023-05