800
WARNING
●
While the Multi-channel Flow Rate Sensor Controller is in
operation, do not apply an external magnetic field to the
controller and sensor head. This could cause unintentional
operation leading to damage to equipment or to personal
injury.
●
When wiring, be careful to ensure that the wiring polarity is
correct.
A wrong polarity could result in damage to the Multi-channel
Flow Rate Sensor controller.
CAUTION
●
Always use the specified sensor head with this product.
Use of an unspecified item could result in erratic operation.
●
When handling the Multi-channel Flow Rate Sensor Controller
and sensor head, avoid hitting, dropping, or bumping with
excessive force (490 m/s
2
[50 G] or more). Even if not
apparently damaged, the internal parts could be damaged,
leading to erratic operation.
●
Do not short the load.
Switching on sensor output with a shorted load could cause
damage to the Multi-channel Flow Rate Sensor Controller due
to overcurrent.
Example of load shorting: Connecting the output lead wires for
sensor output directly to the power supply.
●
When mounting the fitting to the sensor head, the tightening
torque should not exceed 2.5 N
・
m [1.84 ft
・
lbf]. In addition,
when securing the sensor head, use an M3 screw and the
tightening torque should not exceed 0.6 N
・
m [0.44 ft
・
lbf].
Excessive tightening could damage the sensor head, etc.
Always switch off the power before connecting the sensor
head and controller. Attempting to connect the sensor head
with the power on could cause erratic operation in the
controller due to surge voltage, etc.
DANGER
●
While the product is in operation, do not attempt to adjust the
attached mechanisms (connecting and disconnecting the
wiring connector, or attach or position the sensor head, etc.).
Abnormal operations could result in injury.
General precautions
1.
If power is supplied from a commercial switching regulator,
ensure that the frame ground (F.G.) terminal of the power supply
is connected to an actual ground.
2.
In the case of noise generating equipment (switching regulator,
inverter motor, etc.) being used in the vicinity of sensor mounting
portion, connect the frame ground (F.G.) terminal of the
equipment to an actual ground.
3.
When wiring is completed, check that there is no error in the
wiring connections.
Wiring
1.
Sensor head is designed for use with non-corrosive gas. It cannot
be used for liquid or corrosive gas.
2.
Use within the rated voltage range for power supply.
3.
Do not use during the initial transient time (0.5 sec.) after the
power supply is switched on.
4.
Do not operate the keys with pointed or sharp objects.
5.
When using window comparator mode 2 in operations that
capture repeated utilization of the reference flow rate, the
guaranteed number of times may be exceeded in a short period of
time. In such cases, use window comparator mode 3.
6.
If using with window comparator mode 3, use FSU-S-D.
Others
Handling Instructions and Precautions
MULTI-CHANNEL FLOW RATE SENSOR CONTROLLERS
Safety Precautions (Multi-channel Flow Rate Sensor Controllers)
