Commissioning
MAN0984_Iss 4_01/19 Touchpoint Plus
Pt. No. 3011M5001 53 Technical Handbook
6.2 First Time Switch On
Before switching power on, ensure that the system has been commissioned or that a qualified person has checked
that the wiring is safe and conforms to local regulations, and that all electrical connections are made in accordance
with Chapter 5
Switch on power at the Isolator switch and wait for the system to initialise.
The system start up sequence may last for up to 20 minutes depending on the number of channels in use. During this
time the mA Output signals and Relay Output contacts are initialised to the inhibit state, with the Relay output being
delayed by approximately 30 seconds after the mA output inhibit ends.
Each sensor requires the warm-up time for stabilization. When Touchpoint Plus is turned-on, Touchpoint Plus starts
the normal gas reading after sensor warm-up period. Refer to each sensor's user manual for the warm-up time.
TPPL will first display the auto-scrolling Input screen, indicating the current status of the system. The Channel List
View is shown below. The screenshot shows installed sensors but it may be blank depending on your system status:
You can alter the screen views or gain further information by touching the icons shown below:
Table 12. Home Screen Menu Icons
Event History (changes colour to
show fault, inhibit or alarm)
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