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57-651 Eclipse

®

SIL Certified Safety Manual for Enhanced Model 705-51AX-XXX

6.1.4 Proof Test Procedure

A suggested proof test is described below. This test will
detect approximately 94% of possible DU failures in Model
705-51A*-*** version of the Enhanced ECLIPSE Model 705.

Ensure that all necessary installation and site acceptance test
procedures required to achieve safety are followed.

1. Bypass the safety PLC or take other appropriate action to

avoid a false trip.

2. Send a HART command to force a high alarm current out-

put to the transmitter under test, and verify that the analog
current reaches that value.

This tests for power supply problems such as low supply
voltage or increased loop wiring resistance. It also tests for
other possible failures in the current loop circuitry.

3. Send a HART command to force a low alarm current out-

put to the transmitter under test, and verify that the analog
current reaches that value.

This step tests for possible quiescent current related failures.

4. Remove level from the probe. The Status parameter should

say “Dry Probe” and the level reading should be equal to
the value in the “Level Offset” parameter.

5. Perform a two-point calibration check of the transmitter by

applying level to two different points on the probe and
compare the transmitter display readings and the current
level values to known reference measurements.

6. If the calibration check performed in step 5 is correct, the

proof test is complete. Proceed to step 11.

7. If calibration is incorrect, remove the transmitter and probe

from the process. Inspect the probe for buildup or clogging.
Clean the probe if necessary.

Perform a bench calibration check by shorting the probe
(simulating level) at two different points. Measure the levels
from the bottom of the probe to the simulated levels and
compare to the transmitter display and current level readings.

8. If the calibration is off by more than 2%, contact

MAGNETROL Technical Support for assistance.

9. If the calibration is within tolerance, the proof test is com-

plete. Proceed to step 10.

10. Re-install the probe and transmitter.

11. Restore the loop to full operation.

12. Remove the bypass from the safety PLC or otherwise restore

normal operation.

Summary of Contents for eclipse 705

Page 1: ...omer specified out of range signal i e less than 3 8 mA or greater than 20 5 mA The Enhanced Model 705 is certified for use in low or high demand level measurement applications Application The Enhance...

Page 2: ...l Level of Personnel 6 5 3 Necessary Tools 6 5 4 Storage 7 5 5 Installation 7 5 6 Configuration 7 5 6 1 General 7 5 6 2 SIS Configuration Requirements 8 5 6 3 Write Protecting Locking 8 5 7 Site Accep...

Page 3: ...ssified as a Type B Device as defined by IEC61508 NOTE Please ensure that the Model 705 transmitter and probe are installed as a set matched by the Serial Number shown on the name plates 1 3 Determini...

Page 4: ...This SIL 2 3 certified device is only available with an analog signal 4 20 mA with HART digital communications The measurement signal used by the logic unit must be the generated analog 4 20 mA signa...

Page 5: ...equipment etc with smaller transient volt ages than those characteristic of Overvoltage Category III This category applies from the wall plug to the power sup ply isolation barrier or transformer The...

Page 6: ...ildup on the probe Refer to Section 3 3 3 of Installation and Operating Manual 57 600 for more detailed application information regarding media buildup and bridging 5 1 2 Environmental Refer to Sectio...

Page 7: ...nd resetting of the password protection function Section 2 6 5 1 of I O Manual 57 600 provides menu selec tion items for configuration of the transmitter as a Level Only sensing device See Section 5 6...

Page 8: ...eplate MEASUREMENT TYPE Level Only LEVEL UNITS As indicated on probe nameplate PROBE LENGTH As indicated on probe nameplate LEVEL OFFSET As required by application DIELECTRIC As required by applicatio...

Page 9: ...ete a site acceptance test should be performed to ensure proper opera tion This procedure is identical to the Proof Test Procedure described in Section 6 1 4 of this manual Record the results for futu...

Page 10: ...in the Safety Integrity Level of a Safety Instrumented System it is imperative that specified manual proof testing be completed at the time intervals specified The user must select the type of inspect...

Page 11: ...level from the probe The Status parameter should say Dry Probe and the level reading should be equal to the value in the Level Offset parameter 5 Perform a two point calibration check of the transmit...

Page 12: ...ilistic calculation method is meaningless as the probability of failure significantly increases with time The useful lifetime is highly dependent on the component itself and its operating conditions t...

Page 13: ...endently verify all changes to end user configured parameters and validate the safety functionality prior to reliance on the product for safety protection End user s responsibility SSA 8 The end user...

Page 14: ...14 57 651 Eclipse SIL Certified Safety Manual for Enhanced Model 705 51AX XXX 8 2 FMEDA Report exida Management Summary...

Page 15: ...15 57 651 Eclipse SIL Certified Safety Manual for Enhanced Model 705 51AX XXX...

Page 16: ...al Procedure So that we may efficiently process any materials that are returned it is essential that a Return Material Authorization RMA number be obtained from the factory prior to the material s ret...

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