MAN0905_Issue 7_07/17
Searchpoint Optima Plus with optional HART
®
output
Operating Instructions
2108M0550
66
Standard Weather Protection from the Searchpoint Optima Plus.
2. Fit a Calibration Cap to the Searchpoint Optima Plus. Ensure it is pushed on fully.
3. Select
Device Setup
.
4. Select
Calibrate
.
5. Select
Gas Calibration
.
6. The display shows a warning message, press
OK
.
7. Ensure that there is zero gas present in the vicinity of the Searchpoint Optima Plus. If necessary, apply
zero gas at a rate of 1 – 1.5 litres per minute.
8. When the gas reading on the display is stable press
OK
to initiate the Zero Calibration and then wait
for approximately 15 s. The 4-20 mA output will be inhibited automatically at this time.
9. The display shows a message that the Zero Calibration was successful and offers to exit without a
Span Calibration. Select
No
and press
Enter
.
10. Enter the concentration of the span calibration gas and press
Enter
.
11. Apply calibration gas at a rate of 1 – 1.5 litres per minute. Wait for the gas reading to stabilise
(~ 30 - 60 s).
12. Press
OK
to initiate the Span Calibration and then wait for approximately 15 s.
13. The display shows a message that the Span Calibration was successful. Remove the Calibration
Cap and wait for the test gas to clear (~ 30 s).
14. Ensure that the gas reading has returned to zero. Press OK to release the 4-20 mA output.
15. The display shows a note that the Searchpoint Optima Plus will return to normal operation, press
OK
.
16. Return to the Welcome screen.
17. Refit the Standard Weather Protection and the two retaining nuts.
13.8 Store Calibration Information
If required, information programmed by the user can be stored under the Calibrate menu in a text field
called Calibration Info. For example, the date of the last bump test could be recorded.
1. Select
Device Setup
.
2. Select
Calibrate
.
3. Select
Calibration Info
.
4. Enter required information up to 32 characters and press
Enter
.
5. Press
Send
to send the information to Searchpoint Optima Plus.
6. Return to the Welcome screen.
13.9 Investigation of Faults or Warnings
13. Maintenance using HART
®
Communications
