Greyline Portaflow PT400, Руководство пользователя

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before use. A fully charged battery will power the instrument for up to 20hrs depending on the output utilisation
and backlight usage.
If the backlight has been enabled the display is illuminated for 10 seconds every time a key is pressed. If the
backlight is active continuously it would reduce the available battery operating time to 8hrs. Similarly, if the 4-
20mA output is used constantly at 20mA, the battery life would reduce by 50%. It is therefore beneficial to turn off
the backlight and 4-20mA output facilities when they are not required.
When the instrument is operating in the ‘Flow Reading’ mode the percentage battery charge level is displayed
symbolically on the LCD screen. A warning message is triggered if the charge falls to approximately 30%, at
which point there is up to four hours of battery operation remaining, depending on usage. The battery can be
charged both while the instrument is in use or when switched off. The instrument’s internal data is stored in non-
volatile memory and will not be lost even if the battery discharges completely.
Key Point:
The battery is not a user-changeable item. The instrument must be
returned to Greyline if the battery needs replacing.
Key Point:
Only use the supplied charger, or special adaptor lead. Failure to comply
with this will invalidate your warranty.
1.5 Transducers
Different transducer sets are provided with the PF400A and PF400B Portaflow models and are not
interchangeable.
Key Point:
Always use the transducers that were supplied with the instrument.
Transducer set 'A'
Supplied as standard on PF400A for use on pipes 0.51” to 4.525” (13mm to 115mm) outside diameter.
Transducer set 'B'
Supplied as standard on PF400B for use on pipes 1.97” to 39.37” (50mm to 1000mm) outside diameter.