803
■
Setting
• Switching on the power supply (DC24V
voltage) automatically provides detection
mode.
• The flow rate of the selected channel is
indicated in the LED display. (The
selected channel’s A.S.OUT LED
(green) lights up. See Figure 2.)
• The SW.OUT LED (red) lights up when
the switch output is turned ON.
• Pressing the
key or
key changes
the selected channel.
• If the
display appears, it means
that the selected channel’s sensor head
was not connected or has a wire break.
• In the case of a wire break, shut off the
power and replace the sensor head.
Set PIN (sensor head connector 4-pin) for corresponding channel to
“L level” (0.5V or less, 10 ms or longer).
A. S. OUT
SW.OUT
ch
1
2
3
4
FSU
Figure 2
Detection mode
Use the following procedure to perform settings for the sensor head
used in each channel.
Note: SE2 and SE4 cannot be used.
Sensor head selection
●
Reference flow rate capture method in window comparator mode 2 and 3
Device key operation method
RS232C method
General-purpose I/O input method
For the operations method, see p.804
For RS232C commands, see p.806
See diagram below
●
Functions List (For details about operations, see the each operation
method)
Function
Flow rate display
L1 (
Δ
L)/L2 point settings
Hysteresis setting
Reference flow rate capture
Mode selection
Sensor head type setting
Zero reset
Flow rate display autoscan
Switch output reversal
(Enabled in mode 4 only)
Peak hold
Bottom hold
Flow rate display deleted
Output mode check
Sensor head type check
ON (
Δ
L)/OFF point check
Reference flow rate,
Δ
L/OFF point check
Switch output condition
display
Version display
●
Reference flow rate capture method using general-purpose I/O input
24V
SW PIN-1
0.5V or less
10 ms or longer
Captured at
startup
1
2
3
4
：
PIN
SW PIN-1
1
2
3
4
：
PIN
1
c
h
4
c
h
Flow rate sensor head
Multi-channel flow rate
sensor controller
Main circuit
Device button
command
○
○
○
○
○
○
○
○
○
○
○
○
×
×
×
×
×
×
Serial communication
command (-D only)
@A
@PRE
@HYS
@P
@MODE
@TYPE
@B
@AS
@INV
@PHL
@BHL
@DIS
@MD
@TP
@C
@E (Enabled for modes 2
and 3 only)
@SW
@VER
If not using general-purpose I/O input to perform reference flow
rate capture, do not connect anything to the PIN. (Note: PIN is
pulled up at 24V.)
Note: Share the GND for signal
input with the GND for the
multi-channel flow rate
sensor controller.
Procedure
1
2
3
4
5
Device operation
7-seg display
Remark
Use or to select channel
Use or to select sensor head
Sensor head determined
[Sensor head selection]
SE1:
−
3.00 to 3.00:
±
3
R
[
±
0.11 ft.
3
]
type
SE2: Cannot be used
SE3:
−
500 to 500:
±
500
[
±
30.5 in.
3
]
m
R
type
SE4: Cannot be used
SE5: 0.00 to 10.00: 10
R
[
±
0.35 ft.
3
]
type
Use the following procedure to perform output mode settings for each
channel.
Output mode selection
Procedure
1
2
3
4
5
7-seg display
Remark
Use or to select channel
Use or to select output mode
Output mode determined
[Output mode selection]
CO1: Window comparator mode 1
CO2: Window comparator mode 2
CO3: Window comparator mode 3
CO4: Window comparator mode 4
Device operation
(Push both at
the same time)
(Push both at
the same time)
Setting Procedure
