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5 Service & Maintenance Requirements
The Pulse unit requires regular maintenance and calibration to ensure correct measurement. The following
service schedule should be maintained for all testing. A fully serviced Pulse unit is mandatory for regulatory
testing and where testing results are intended to be used to demonstrate improvements which may be later
monetised or promoted.
Please contact BTS Ltd directly to discuss your intended use of the system and the associated servicing,
calibration, user training and test regime requirements.
5.1 User Maintenance and Inspection
To assure that all testing is carried out safely and accurately, and to ensure that your Pulse unit maintains its
performance for as long as possible, please follow the schedule below:
Action
How Often
Drain Main
Weekly
Tank
Hose,
Weekly
connectors
and cables
check
System
Annually
airtightness
test
Self-
6 monthly
calibration
checks
5.2 Expert Servicing and Calibration
It is the responsibility of users to service and report servicing to any authorised regulatory body for which system
calibration is a requirement.
Regulatory bodies may prescribe their own calibration requirements, otherwise, BTS recommends the following
expert/third-party calibration.
Component
Full system test in a
Full System
fully characterised
enclosure
Measuring
Air receiver
temperature inside
temperature
the receiver (i.e.
sensor
inside the pressurised
air tank)
Air receiver
Measuring pressure
pressure sensor
inside the receiver
Notes
When filling the main tank,
moisture from the air will collect in
the tank, this needs to be removed
weekly to ensure optimum
performance and accuracy.
Check all hoses, data cables,
connectors and electrical cables for
security, damage or wear and
replace if damaged.
Ensuring there are no leaks in your
system will ensure fast charging
and maximised testing accuracy.
Ensuring the system is providing
results in line with a correctly
calibrated system.
Description
Range
±25 Pa
-40℃ to
60℃
1-11 bar
(Absolute)
Guidance
Trigger the 'drain air receivers' setting
while the tank is pressurised at around
2-5Bar. Note the drain is in the base of
the unit and a pool of moisture may be
released so take care if draining on
carpets or wooden floors.
This is to ensure safe and efficient
operation but also poor data
connections can lead to missing data
packets and unnecessary failed tests.
Charge the tank to 10bar, leave the full
system (air receiver and compressor)
pressurised for 2-3hours, observe any
pressure changes with the live feed of
the tank pressure on the screen. Report
leaks to service provider.
Using a self-calibration known-opening
panel, carry out testing as per
description in Appendix A – Annual Self
Calibration Check
Calibration
Accuracy
standard
required
Calibration
±5%
checked as a
whole system,
traceable to
national
± 0.5 °C
standards.
Individual sensors
calibrated to
±0.1 bar
2
UKAS.
Calibration
Frequency
24 Months
1
24 Months
24 Months
Page 10 of 28
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