16
Ready LED
Error LED
Mode
Off
Off
Battery not connected.
Flashing
Off
Battery charging.
On
On
Battery charged.
Any
On
A problem has occurred with the battery of
charger; consult TVC or your agent for
assistance.
Insert the battery charger plug into the charging input socket. Connect the
battery charger to a suitable mains supply. The HPM battery will take
around two hours to fully recharge and should be disconnected from the
battery charger once fully charged.
The following details the charge cycle and LED indications for the HPM
battery charger:
4.0
Additional information
4.1
Specification
NB: The HPM is not designed to measure any concentrations of O2
greater than 25%! Using the HPM on higher O2% mixes is not
approved!
Range
0 – 25% O2
Accuracy
±5% RDG (reading) ± 1 Digit
Transducer Type
Multiple
Battery
Rechargeable 7.2 Volt Lithium-Ion
O2 measurement range:
0.01% - 20.9% (HPM-01)
0 ppm – 1200ppm / 0.0005% - 20.9% (HPM-02)
As with any measurement equipment, the analysis pod requires time to
achieve an accurate measurement. The T95 time is 120 seconds.
The HPM also requires time to stabilise its sensors to the operating
environment. Large fluctuations on temperature, air pressure and
humidity can affect the accuracy of the HPM; see the Section
for
more details.
