epro CON 011, Directions For Use Manual, Page: 10 / 31

Page 10
Direction for Use (GB) / Gebrauchsanleitung (D)
Converter CON 011
Direction for use
2. Set distance measuring target − sensor head to minimum gap (PR 6423: 500
μ
m, refer to
operating manual PR 6422...6426, section 1.3.2)
3. Set output level to − 2,00V [ − 4,00V] with potmeter R23.
4. Set distance to half the meas. range (+ minimum gap) (PR 6423: 1500
μ
m)
5. Calculate difference between output voltage and − 10,00 V [ − 12,00V] . Adjust output voltage
with R 22:
→
at U
out
> − 10V [ − 12V] reduce it by twice the difference,
→
at Uout < − 10V [ − 12V] increase it by twice the difference.
Example: Measured value
(centre of the range)
Adjustment value
(with R 22)
U
ist
> − 10V: − 10,50V − 9,50V
U
ist
< − 10V: − 9,00V − 11,0V
6. Repeat steps 2...5 till optimum accuracy is reached ( 1%).
7. Set distance to full range (+ minimum gap) (PR 6423: 2500 μ m)
→ If the output voltage is − 18,00V [ − 20,00V] (max. ± 1%), the adjustment is correct, go
on with step 8.
→ If the output voltage is < − 17,8V [ − 19,8V] repeat the adjustment with a slightly reduced
minimum gap according to steps 2...6 (PR 6423: e.g. 490 μ m)
→ With output voltages > − 18,2V [ − 20,2V] repeat the adjustment with a slightly increased
minimum gap according to steps 2...6 (PR 6423: e.g. 510 μ m).
8. If the distances at − 2V, − 10V and − 18V [ − 4, − 12 and − 20V] are within the tolerances, check
the linearity at intermediate steps − 4 V, − 6 V, − 8 V.... .
9. Set the distance to the full range, and note the output voltage. The resistance values for R22
and R23, found with the decades, must now be soldered as fixed resistors.
After the resistors have cooled down, set the output voltage with potmeter GAIN to the value
you have just noted.
10. Check the linearity according to step 8.
1.4 Maintenance, Fault finding, Repair
1.4.1
Maintenance
During operation, sensors and converter do not require any maintenance. High sophisticated
materials and a rugged construction ensure undisturbed operation and a long life time, even in
harsh environments.