Micronics portaflow 220, Руководство пользователя

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1: General Description
6
Portaflow 220 User Manual
(Issue 1.0)
1.4.3 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.
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 will reduce the available battery operating time to around 8hrs. Similarly, if
the 4-20mA output is used constantly at 20mA the battery life would reduce by 20%. 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.
1.5 Transducers
Different transducer sets are provided with the PF220A and PF220B Portaflow models and are not
interchangeable.
Transducer set 'A'
Supplied as standard on PF220A for use on pipes 13mm to 115mm outside diameter.
Transducer set 'B'
Supplied as standard PF220B for use on pipes 50mm to 1000mm outside diameter.
Key Point: The battery is not a user-changeable item. The instrument must be
returned to your distributor 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.
Key Point: Always use the transducers that were supplied with the instrument.