Matsushima PFM-M01E, Инструкция по эксплуатации, Страница: 8 / 12

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８．LIMIT SETTING
In limit setting, the upper limit point (contact output point) can be set within the range of
4mA (0%) to 20mA (100%).
Follow the procedures below to carry out limit setting.
(The Limit Setting Volume is set to 12mA (50%) at our factory before shipment, unless otherwise
requested.)
1)
Set the Range Switch to “0”.
2) Press the Mode Change Switch until the LED lamp “LIMIT SET” lights up.
(The limit setting can be adjusted while “LIMIT SET” is lit.)
3) Turn the Limit Setting Volume clockwise (Arbitrary setting).
(For your reference: Each LED lamp on the display shows 10%. (100% max.))
4) To complete the limit setting, change the Limit Setting Volume to a value other than “0”.
If the Limit Setting Volume is turned fully counterclockwise, an upper limit alarm will
be output at 4mA (0%) or more.
However, there is a possibility that a lot of chattering is generated when the change in the
signal is extreme.
In such a case, we recommend the integration mode or use the delay function by customer .
If a more detailed setting is needed, connect a tester to the output terminal of 4mA to 20mA,
and adjust the Limit Setting Volume by referring to the current value.
0% (4mA) to 100% (20mA)
Refer to
10.MAINTENANCE MODE .
【Operation chart : LIMIT 1/2 and ALARM detection】
（LIMIT output） TYPE:PFM-M01E
Fig.6.
Limit output operation chart
（ ALARM ）
Fig.6. Alarm operation chart
Attention: Alarm contact is open and LED is light off if there is no power supply.
Importance:
When switching from the maintenance mode to the measurement mode, please reset the
power supply.
20mA
4mA
Time
C
u
rr
en
t
ou
tp
u
t
S
et
ti
n
g
r
a
n
g
e
Set value (LIMIT)
NO (open)
LED (light off) NO (open)
LED (light off)
NO (close)
LED (light up)
At breakdown The equipment is normal. The equipment is normal.
NC (close)
LED (light off) NC (close)
LED (light off)
NC (open)
LED (light up)
※
!