User’s & Technical Manual –
P/I LEVEL TRANSMITTER PIT7000
GELEC
Industrial Electronics
PAGE
11
7.
PIT7000 OVERVIEW & CONFIGURATION
The PIT7000 is a complete pressure transmitter with 6 built-in connection terminals, an air
flow regulator with pneumatic adaptors, a calibration button, a configuration dip-switch
and a status LED. Its thermoplastic housing (Polyamide PA 6.6) is approved for electronic
devices in industrial environment. It is designed to be installed inside a vented electrical
control panel, snapped onto commercially available DIN mounting rails (NS32/NS35).
STATUS LED
The STATUS LED at the front side indicates various operational
stages of the PIT7000. Consult the following table for quick
reference and the relevant sections for detailed information.
LED COLOR
PIT7000 STATUS
GREEN
Device powered - Normal operation
FLASHING GREEN
High-Level calibration mode
FLASHING ORANGE
Low-Level calibration mode
GREEN/RED
Confirmation of calibration processes
FLASHING RED (3 Hz)
ERROR 1
FLASHING RED (1 Hz)
ERROR 2
OFF
Device not powered
CALIBRATION BUTTON
The calibration button is used in PIT7000 calibration process and
when the calibration settings need to be reset to default. Refer to
the relevant sections in this manual for more information.
AIR FLOW REGULATOR
The one-way air flow regulator controls the volume of air which
escapes the bubble tube. Having the recommended pneumatic
layout, you will find this airflow rate preset at approximately
3-4
bubbles per second
. This is the recommended rate for a
controlled and constant stream of bubbles, which is important for consistent measurement.
The airflow adjustment can affect the device’s proper functionality and re
-adjustments are
not recommended by a user which is not familiar with the device operation. However, if it is
necessary adjust the regulator with a flat screwdriver (clockwise for decreasing,
counterclockwise for increasing) and set the bubbles to the recommended rate. The front
label may block the regulator access, for unintended adjustments protection.