Fuji Electric ZKMA, Инструкция по эксплуатации

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8.3 Automatic blowdown
Description

Blowdown operation is performed at time intervals set in advance.

Using contact signal from the terminal block, drive the solenoid valve and remove dust by blowing
instrumentation air, etc. into the flow guide tube with blowdown nozzle.

“BLW” is displayed on the left of the measurement screen during automatic blowdown.

If the output signal hold is set, the output signal is held to the set value before start of blowdown dur-
ing blowdown. After the calibration, the hold is maintained until the time set in the measurement wait-
ing time elapses.

To perform automatic blowdown, “10.3.2 Date and time setting of automatic blowdown” and
“10.3.3 Automatic blowdown cycle setting” and “10.3.4 Procedure for setting blowdown time” are
required.
Blowdown contact
Analog output signal
Closed Closed
Contact output for maintenance
Automatic blowdown
starting date
Automatic blowdown
interval
Hold Hold
prolong
Hold
Procedu
re
Operation
(example) Setting the blowdown so that it is performed for 30 seconds every 24 hours from 13:00,
08/02/25
Key operation Description
Displayed message
(LCD)
(1) Display the screen on the right in accordance with the key op-
eration summary and press the
key.
BLOW DOWN MENU
SET AUTO BLOW
(2)
Press the key.
The auto blowdown valid/invalid setting screen appears.
SET AUTO BLOW
AUTO BLOW
(3)
Use the key to select the auto blowdown valid (YES).
Press the key to set the value.
BLOW DOWN
YES NO
(4)
Press the key.
BLOW DOWN
YES
(5) The screen on the right appears.
SET AUTO BLOW
AUTO BLOW
(6)
Press the key to display the screen on the right and press
the key.
The date and time setting of automatic blowdown screen ap-
pears.
SET AUTO BLOW
START DATE