KEYENCE EX-500(W) Series - Manual (Page 3)

3
PART NAMES AND FUNCTIONS
5 Cable length selector switch
Normally set this switch to "3 m" (the lower position).
When an optional extension cable (7 m) is added, set this
switch to "10 m" (the upper position). (7 m cable: model OP-
20708)
6 Lock switch
When this switch is set to LOCK (the lower position), any
output adjustment keys (7) are disabled.
7 Output adjustment keys
The functions are changed by adjusting the Mode selector
switch position.
When adjusting output voltage
(current), select the ADJUSTMENT
mode based on the target material.
Mode
Key No.
ADJUSTMENT
mode
2. 3. 4 MEASUREMENT
mode
1
Zero-point set key
Sets the output to 0 V when the
target is in contact with the
sensor head. Auto-zero/Auto-span reset key
Resets the auto-zero and auto-
span functions.
Full-scale set key
Sets the output to 5 V when the
target is at the maximum
measuring distance from the
sensor head. Auto-span key
Changes the input-to-output ratio
and sets the output to 2.5 V when
the target is at any position within
measuring range.
(When current output is used,
pressing this key sets the output
current to 12 mA.)
Sets the output voltage to 2.5 V
to compensate for the linearity of
the output voltage when the
target is placed at half the
maximum measuring distance (1/
2 of F.S.) from the sensor head. Sets the output to 0 V when the
target is at any position within
measuring range.
(When current output is used,
pressing this key sets the output
current to 4 mA.)
* The auto-span key functions in the range of 2 to 4 V output voltage.
Linearity compensation key Auto-zero key
1 Sensor head
cable connector
2 Indicators
POWER: Power indicator
OVER:
Measurement out-of-range indicator
ALARM: Disconnection alarm indicator
3 Response time selector switch
You can select one of the following four response times.
RESPONSE 1 2 3 4
Response time 0.1 ms 1 ms 10 ms 100 ms
4 Mode selector switch
This switch is used to select the desired mode based on the
target material.
MODE Function
1 MEASUREMENT mode When measuring targets, set the
switch to this position.
2 ADJUSTMENT mode
for aluminum
3 ADJUSTMENT mode
for stainless steel
4 ADJUSTMENT mode
for steel
(After completing the adjustment procedure, set the mode selector switch to "1"
to start measurements.)