No.
Name
Description
q
LED display (red)
Displays the detected flow rate value, setting
contents, and error content
w
Switch output indicator (red)
Lights up when switch output is ON
e
Autoscan indicator (green)
The channel whose current flow rate is displayed on
the LED lights up
r
UP key (
)
Used when adjusting set value upward
t
DOWN key (
)
Used when adjusting set value downward
y
Mode key (
)
Used for all types of settings
802
Setting procedure
Caution
■
Major parts and functions
1.
Since miswiring in the sensor head, or in the power supply, switch, and communication cable, can
damage both the controller and sensor head, always check the wiring before switching on the power.
2.
The setting conditions are written to EEPROM and saved. Be aware that EEPROM has a finite lifetime,
with guaranteed number of times up to 100,000 times.
3.
When using window comparator mode 2 in operations that involve repeated reference flow rate
capture, the EEPROM guaranteed number of times may be exceeded in a short period of time. In such
cases, use window comparator mode 3.
4.
In this catalog, window comparator mode 1 is called by code: CO1, window comparator mode 2 by
code: CO2, window comparator mode 3 by code: CO3, and window comparator mode 4 by code: CO4.
■
Setting preparation
• Connect the connectors to the sensor heads.
(See p.801 for the connection procedure for the sensor head connectors.)
• Connect the sensor heads (one to four pcs.) and the power supply, switch, and communication cable to
the controller. (See p.801 for attaching and removing of the sensor head and the power supply, switch,
and communication cable.)
■
Setting procedure
Window comparator mode 1 (CO1)
Window comparator mode 4 (CO4)
A. S. OUT
SW.OUT
ch
1
2
3
4
FSU
Figure 1
e
t
y
w
q
r
Output mode setting
Set each channel
to CO1, CO2,
CO3, or CO4.
Hysteresis setting
Perform the
hysteresis settings
for each channel.
Sensor head selection
Set the sensor
heads to be used
in each channel.
L1, L2 settings
Perform the L1 and L2
settings for each channel.
Various function settings
Perform function
settings for each
channel. (See
Functions List.)
Detection
Completes the
settings, and
commences
detection.
Window comparator mode 2 (CO2)
Window comparator mode 3 (CO3)
L, L2 settings
Perform the
Δ
L and L2
settings for each channel.
Reference flow rate capture
Performs reference flow rate
capture for each channel. L1 is
automatically created inside
the controller.
L1=Reference flow rate —
Δ
L
Settings at time of shipment (1ch to 4ch)
Sensor head type:
±
3
R
/min
[
±
0.11 ft.
3
/min.]
type
Output mode: Window comparator mode 1
Hysteresis: 0.02
R
/min
[0.007 ft.
3
/min.]
L1 level: 2.00
R
/min
[0.0706 ft.
3
/min.]
L2 level: 1.00
R
/min
[0.0353 ft.
3
/min.]
MULTI-CHANNEL FLOW RATE SENSOR CONTROLLERS
