Brandt Instruments Representing Honeywell PosiChek SCBA test benches.

Honeywell Logo
home Honeywell Index Honeywell PosiChek3 Test Bench

Honeywell Biosystems PosiChek3
NFPA Compliant SCBA Test Bench

Honeywell Analytics
PosiChek Master Distributor

The PosiChek3 has been Replaced by the Posi 3 USB Model
PosiChek3 pgrades were discontinued on January 1, 2017

Honeywell Discontinuation Notice

Honeywell PosiChek3 Test Bench
Computerized test bench, tests performance of virtually any brand SCBA

The PosiChek3 Computerized SCBA Tester
Immediate verification your SCBA are fit for use

The Honeywell PosiChek3 NFPA Compliant SCBA Test Bench automatically tests Scott, MSA, Survivair, Drager, Interspiron, ISI without disassembly or special tools. The PosiChek3 computerized SCBA test bench has been the industry standard for thousands of fire departments, refineries, chemical plants and nuclear power stations worldwide since it was first introduced in 1988 by Biosystems, Inc. In fact, the PosiChek3 is the standard test bench for every major manufacturer of SCBA around the world.

The PosiChek3 advantage:

  • Industry's only NFPA-Compliant SCBA test bench
  • The PosiChek3 is portable and easy to carry
  • Tests the performance of any brand of SCBA
  • Automatic pass/fail
  • The "Quick Test" cycle can evaluate a fully-assembled SCBA in less than 2-minutes
  • Low pressure (2216 psig) and High pressure (4500 psig)
  • Optional medium range transducer: Lets you dynamically test first stage regulator performance. 
  • Includes Biosystems 32-bit SCBA test software
  • Record keeping: Test results are automatically stored right on your own personal computer. 
  • Custom software available directly from virtually all SCBA manufacturers

Biosystems PosiChek3 verifies SCBA "fitness" for use:

A properly maintained SCBA must be capable of meeting basic NIOSH / NFPA performance requirements. Unfortunately, given the hard usage that SCBA receive, performance can sometimes "slip". NFPS 1852 mandates that all compliant SCBA must be tested on a calibrated breathing machine before being put into service and at least once per year thereafter. Unless SCBA are regularly tested to verify proper performance, a loss of function may not be noticed until after an accident has occurred. The PosiChek3 automatically determines the operational fitness of an SCBA by means of a series of dynamic tests and functional checks. PosiChek3 testers quantitatively determine whether the current performance of an SCBA meets NIOSH and NFPA requirements. Regular PosiChek3 testing ensures that SCBA which require maintenance are identified and taken out of service before an accident occurs, not after. 

Testing is easy and automatic:

All you need to do is attach the fully-assembled SCBA to be tested to the PosiChek3 test-head, and choose the tests you wish to conduct. The Complete SCBA Test provides a comprehensive evaluation of the SCBA as required b NFPA 1852.

  • Mask leak-check 
  • Exhalation check-valve opening pressure 
  • Static mask-pressure 
  • Breathing resistance at standard (40 LPM) work-rate 
  • Breathing resistance at maximum (100 LPM) work-rate 
  • Bypass flow-rate 
  • Pressure gauge accuracy 
  • Low pressure alarm activation 
  • Visual inspection 
  • Optional medium pressure transducer lets you dynamically test first stage regulator performance 

PosiChek3 "Quick Test" evaluates fully assembled SCBA in less than 2-minutes: The "Quick Test" performance testing cycle consumes less than 1% of your air supply, and evaluates fully-assembled SCBA in less than 2-minutes! Because so little air is consumed, you can test an SCBA without needing to refill the cylinder before you put it back into service. 

Enhanced Precision (EP) Transducer and Sound Detection System (SDS)

The Enhanced Precision (EP) High Pressure Transducer has been standard issue with every new PosiChek3 sold since March, 2004. The EP transducer was developed to keep pace with new test standards that are being adopted by the SCBA manufacturing community in an effort to improve user safety. The EP Transducer gives a more precise measurement of pressure within the high pressure manifold during testing.

At the same time, the "Sound Detection System" (SDS) was also introduced as an option. The SDS includes a microphone and all necessary hardware to eliminate human interaction during the primary audible alarm test. EP transducer and SDS are available as an upgrade for PosiChek3 that are not equipped with these features. In order to accept the SDS upgrade, the PosiChek must already have the the EP upgrade.

Simplify Record Keeping:

PosiChek3 uses a computer to run the tests,store the results, and print repo rts documenting SCBA performance. PosiChek3 software is available in generic and manufacturers specific versions, including Drager, Interspiro, ISI, MSA, Scott, and Survivair.

PosiChek3 Ordering Information:

PosiChek3 units and upgrades are no longer available. Annual calibrations are still being performed. You can still have them serviced as long as parts are available.


Part #


Low & High Pressure (22216 & 4500 psig) w/ Middle Stage Transducer including Enhanced Precision (EP) Transducer and 32-bit PosiChek software. See OS requirements below.
No Longer Available
Low & High Pressure (2216 & 4500 psig) w/ Middle Stage Transducer including Enhanced Precision (EP) Transducer, Sound Detection System (SDS) and 32 bit PosiChek software

No Longer Availabl

Add USB capability with Advanced Software package to a Standard PosiChek3, includes calibration & return shipping
No Longer Available
Add USB capability with Advanced Software package to a Standard PosiChek3 with Sound Detection, includes calibration & return shipping
No Longer Available


Sound Detection System (SDS)Transducer Upgrade (Posi must have EP)
Rugged transport case (PosiChek3 base unit only)
Full size transport case (Holds PosiChek3 head and all standard accessories)
Replacement cardboard box and foam insert
(Note that due to the size of this box, shipping costs tend to be high)
Replacement test head for PosiChek3
Pressure reducing regulator and valve assembly
High pressure exterior manifold, 4500/5500 psi
Low pressure exterior manifold, 2216/3000 psi
PosiChek3 Annual Service Fee

Software Note: 32-Bit Software will operate on Windows 98, ME, NT (Version 4.0 SP5 or higher), 2000, XP & Vista. Custom software available directly from virtually all SCBA manufacturers. Older versions of the software are no longer available.

Calibration Requirements:

To maintain accuracy and NIST traceability, the PosiChek3 must be calibrated annually. Before returning the PosiChek3 to Sperian Instrumentation - Biosystems, it is important to call the factory first to obtain a Return Authorization (RA) number. When calling have the serial numbers and details of any problems being encountered, if any. The number to call in the US is 1-800-711-6776 and select the service option "3" then press "1" for assistance..

Shipping the PosiChek3 for Annual Calibration

The PosiChek Annual Service Fee includes return shipping anywhere in the United States. PosiCheks shipped outside of the United States are subject to additional freight, duty and tax fees and are subject to export laws. The PosiChek Annual Service Fee does not cover the cost of instrument upgrades, nor does it cover damage or defects caused by abuse, improper packaging, alterations or unauthorized repairs.

The "Annual Calibration and Service Plan" includes calibration, return shipping in the United States, insurance as well any maintenance-related repairs needed by the PosiChek3. As this is a discontinued system, if the service requires replacement parts, the sytems may not be able to be repaired as spare parts are no longer available. Please call or e-mail inquiries for the current pricing.

Although the PosiChek3 is built to last, it also includes precision components that are designed to detect minute pressure variations. It is important to properly package the PosiChek3 for return shipment to Honeywell Analytics. The PosiChek3 is delivered in special cartons that are designed to protect it from damage during transit. Save the shipping cartons and use them when returning the PosiChek3 to Honeywell Analyticsfor annual calibration. In addition to the standard shipping box, Honeywell Analytics offers rugged shipping cases made by Pelican®.

WARNING! Honeywell Analytics - Biosystems equipment should only be used in conjunction with the manufacturer's instructions. Failure to follow such instructions could result in serious injury or fatality.


Return to Brandt Instruments
For more information  Email Mail
Brandt Instruments, Inc. 
    18568 Oak Grove Parkway 
    Prairieville, LA  70769 
Phone: 225-673-6776
    Fax: 225-673-6725

Visa, MC, AmEx, Discover Cards

Copyright © 2002-2020 Brandt Instruments, Inc.