GF PORTAFLOW 330, Инструкция по эксплуатации

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Instrction manual Design and function
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Dual function numerical keypad
The block of keys shown in the centre of the keypad in Figure 1.5 are dual function keys. They
can be used to enter straight-forward numerical data, select the displayed flow units or
provide quick access to frequently required control menus.
5.2.3 Power supply and battery charging
Operating power is provided by an internal battery that can be charged from the utility supply
using the supplied external charger. When you first receive the unit you must put the battery
on charge for a minimum of 6.5hrs before use. A fully charged battery will power the
instrument for up to 20hrs depending on the output utilisation and backlight usage.
The backlight can be selected to be either permanently OFF, illuminated for 10 seconds, 30
seconds or 1 minute every time a key is pressed, or permanently ON – as configured in the
Setup Instrument menu. If the backlight is active continuously it will 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.
The battery is not a user-changeable item. The instrument must be returned to your
distributor if the battery needs replacing.
Only use the supplied charger, or special adaptor lead. Failure to comply with this will
invalidate your warranty.
5.3 Transducers
Two sets of ultrasonic transducers are provided as standard. When setting up the instrument
it will indicate the appropriate transducer set to use for a particular application, depending on
data entered by the user. Default pipe ranges are programmed into the instrument and most
of the time there will be no need to use an alternative transducer set to the one suggested by
the instrument. However, if circumstances dictate that a different set must be used it is
possible to manually programme the instrument to accept the alternative set.
Transducer set 'A'
Supplied as standard for use on pipes 13mm to 115mm outside diameter.
Transducer set 'B'
Supplied as standard for use on pipes 50mm to 2000mm outside diameter.
Transducer set 'D'
Type 'D' transducers are optional equipment that can be used by the Portaflow 330 on pipes
from 1500mm to
5000mm. They are supplied complete with ratchet straps for ‘diagonal mode’ attachment.
NOTICE