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Changes for page Testing Procedures

Last modified by robert on 2024/12/09 16:08
From version 12.1
edited by robert
on 2024/12/09 16:08
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To version 7.2
edited by robert
on 2024/12/03 13:53
Change comment: There is no comment for this version

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21 21  
22 22  == Power Test ==
23 23  
24 -Install a known working (and charged) battery into the recorder and turn ON the main power switch, verify that the recorder powers ON correctly.
24 +Install a known working (and charged) battery into the recorder and turn ON the main power switch, verify that the recorder powers ON correctly.
25 25  
26 +
26 26  (% class="box infomessage" %)
27 27  (((
28 -NOTE: Unit powering ON is not instant, there may be a 10 to 15 sec delay.
29 +Unit powering ON is not instant, there may be a 10 to 15 sec delay.
29 29  )))
30 30  
32 +
31 31  Verify the LCD screen turns on and begins clearly displaying the ANU logo and system parameters correctly once the recorder powers up. Look for signs of flickering, blurring or any other visual artefacts.
32 32  
33 33  With the recorder powered ON, using a multimeter, test the bias voltage on GPS antenna port; the reading should be 3.3V (outer shell is negative and centre pin is positive).
34 34  
35 -Connect "Test Power Plug” (//ANU only//) into the sensor port and verify the light is turned on, this indicates the power will be correctly delivered to the sensor.
37 +Connect “Test Power Plug” into the sensor port and verify the light is turned on, this indicates the power will be correctly delivered to the sensor.
36 36  
39 +
37 37  (% class="box infomessage" %)
38 38  (((
39 -NOTE: The following step, power feature is not present in LPR200, therefore this step cannot be verified for LPR recorders.
42 +The following step, power feature is not present in LPR200, therefore this step cannot be verified for  LPR recorders.
40 40  )))
41 41  
42 42  == System Test ==
... ... @@ -53,6 +53,7 @@
53 53  
54 54  In the Menu under “System Information”, verify that the serial number matches what is written on the case.
55 55  
59 +
56 56  == Functional Test ==
57 57  
58 58  === Charging ===
... ... @@ -61,9 +61,9 @@
61 61  
62 62  Set-up an external power source, by connecting a solar regulator to a power supply  and set voltage to 18V DC. Verify the regulator is supplying the correct voltage of 7.7V and then plug into the “External Power” port of the recorder.
63 63  
64 -(% class="box warningmessage" %)
68 +(% class="box infomessage" %)
65 65  (((
66 -**IMPORTANT! **The LPR-200 now has two types of solar regulators. The new type (exclusive after Jan 1 2025) are modified to output 13.8V (for charging lead acid batteries directly). Do not use these with the old lithium battery packs as this may destroy the units and possibly explode! If you are confused email us.
70 +There are two types of solar regulators available. Make sure to not mix them as they supply different Voltages, 7.7V and 13.8V.
67 67  )))
68 68  
69 69  Navigate to “System Information” in the Menu and note the battery icon will have a lightning symbol indicating it’s charging, also observe the state of charge % is increasing under.
... ... @@ -78,7 +78,7 @@
78 78  
79 79  (% class="box infomessage" %)
80 80  (((
81 -NOTE: If the user requires to verify the sensor or the validity of the recorded data, a power spectral density analysis would need to be performed, see rest of document (link here) for instructions on how to perform this test.
85 +If the user requires to verify the sensor or the validity of the recorded data, a power spectral density analysis would need to be performed, see rest of document (link here) for instructions on how to perform this test.
82 82  )))
83 83  
84 84  === Recording test ===
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99 99  
100 100  (% class="box infomessage" %)
101 101  (((
102 -NOTE: For procedure on how to use and set-up the PSD script refer to the “Performing PSD function on recorded sensor data procedure” document. (LINK)
106 +For procedure on how to use and set-up the PSD script refer to the “Performing PSD function on recorded sensor data procedure” document. (LINK)
103 103  )))
104 104  
105 105  === Troubleshooting ===
... ... @@ -450,27 +450,15 @@
450 450  
451 451  //(originally written by F. Bozinovic May 2024)//
452 452  
453 -
454 -=== Introduction ===
455 -
456 -Sensor calibration allows user to input an electrical test signal into a connected sensor to simulate ground motion. The resulting digitized sensor output can then be analysed to assess various attributes of the sensor, such as basic functionality,
457 -frequency response and/or sensitivity stability over time. For a high-quality broadband sensor, these parameters typically remain stable over time, so that if the sensor initially meets manufacturer’s specifications and has not suffered damage,
458 -then calibration is usually not required. However, calibration can be a useful quality control check if it is suspected that the sensor may be defective or damaged after multiple deployments.
459 -
460 -(% class="box infomessage" %)
461 -(((
462 -NOTE: Not all sensors have this capability and user must refer to the manufacturer’s datasheet for clarification.
463 -)))
464 -
465 465  === Process ===
466 466  
467 467  The Centaur data recorder can generate and output an analog signal using a 16-bit internal digital-to analog converter (DAC). The DAC output is applied to the sensor for calibration purposes via the matching sensor cable. Make sure to use manufacturer cables as the correct signal lines have been connected to the correct pins of the mating connector. The Centaur CTR, CTR2 and CTR3 series models may generate signals of up to ±5 V amplitude, while the Centaur CTR4 series models have an enhanced calibration output.
468 468  
469 -Calibration output signal actions are launched from the **Waveform** page in the Centaur Web interface. A synthetic waveform signal generator allows you to generate sinewave and pseudo-random binary (PRB) signals on demand. User can configure the sine frequency or PRB pulse width, signal duration and amplitude as well as specify lead-in and lead-out silence intervals before and after the calibration waveform. One can also select and play a calibration file containing any other desired digital time series waveform that by uploading it to the Centaur, such as a swept sinewave, step function, random noise, or chained PRB sequence.
461 +Calibration output signal actions are launched from the Waveform page in the Centaur Web interface. A synthetic waveform signal generator allows you to generate sinewave and pseudo-random binary (PRB) signals on demand. User can configure the sine frequency or PRB pulse width, signal duration and amplitude as well as specify lead-in and lead-out silence intervals before and after the calibration waveform. One can also select and play a calibration file containing any other desired digital time series waveform that by uploading it to the Centaur, such as a swept sinewave, step function, random noise, or chained PRB sequence.
470 470  
471 471  The following sample calibration files are supplied with the Centaur. These files may be used to visually verify functionality and approximate sensitivity of the sensor by inspection of the output waveform:
472 472  
473 -* **sine_5V_30s** generates a 1 Hz sine wave with 5 V amplitude lasting 30 seconds. **This is the default test for ANU as well as Nanometrics.**
465 +* **sine_5V_30s** generates a 1 Hz sine wave with 5 V amplitude lasting 30 seconds.
474 474  * **step_0V_to_5V_15s** generates a 0 V signal for 15 seconds followed by a positive 5 V step function lasting 15 seconds.
475 475  * **prb 1V 20ms 10min** generates a 10 minute PRB sequence using 20 ms pulses and 1 V amplitude.
476 476  * **prb 1V 5s 150min** generates a 2.5 hour PRB sequence using 5 second pulses and 1 V amplitude.
... ... @@ -479,14 +479,14 @@
479 479  === Procedure ===
480 480  
481 481  1. Log-in to the Centaur Web Interface and use the Admin credentials
482 -1. Navigate to the **Health** page and verify that the sensor is properly levelled and recognised by its serial number.
483 -1. To configure the calibration parameters, navigate to the **Waveform** page.
484 -1. From the Calibration panel at the top page, select **Type** from the drop-down list and  choose Sine.
474 +1. Navigate to the Health page and verify that the sensor is properly levelled and recognised by its serial number.
475 +1. To configure the calibration parameters, navigate to the Waveform page.
476 +1. From the Calibration panel at the top page, select Type from the drop-down list and  choose Sine.
485 485  1. For the CTR4 series models, additional option to select between Voltage or Current is available.
486 -1. Click on the **Configure** button to access the calibration dialog box for the selected **Playback**.
487 -1. Configure the signal characteristics by selecting **5V, 30 sec with gain of 1.**
478 +1. Click on the Configure button to access the calibration dialog box for the selected Playback.
479 +1. Configure the signal characteristics by selecting 5V, 30 sec with gain of 1.
488 488  1. Configure the padding before and after the calibration signal, enter 5 seconds.
489 -1. The **Duration (s)** time can be made shorter or longer as required by user. NOTE, for shorter frequencies a longer duration will be required for the signal to complete its full cycle and to capture the entire waveform on the screen.
481 +1. The Duration (s) time can be made shorter or longer as required by user. NOTE, for shorter frequencies a longer duration will be required for the signal to complete its full cycle and to capture the entire waveform on the screen.
490 490  1. Click OK button to close the dialog box and save the settings.
491 491  1. Click the start calibration button  [[image:1733178329484-829.png]] to begin the process. Approximately 5 seconds of time padding ( as set in Step 8) will past before the sensor responds to the injected signal and display the sine wave feedback response.
492 492  1. The calibration will end after 30 seconds (as set in Step 7) or can be terminated manually by pressing the stop button. The calibration will then stop after 5 seconds and any configured lead out silence will be skipped.
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503 503  
504 504  //(originally written by F. Bozinovic November 2024)//
505 505  
506 -Testing solar panels is vital for any remote seismic station, since the solar panel ensures that the batteries are kept charged throughout the day. Therefore, reliably testing them ensures only the working panels are installed on remote sites, ensuring success of the site operation and serviceability.
498 +Testing solar panels is vital for any remote seismic station, since role of the solar panel ensures that the batteries are kept charged throughout the day. Therefore, reliably testing them ensures only the working panels are installed on remote sites, ensuring success of the site operation and serviceability.
507 507  
508 508  This procedure describes the method for testing solar panels and determining how to identify defective panels. The testing of solar panels should be performed outdoors, under bring sun to obtain accurate results.
509 509  
... ... @@ -513,7 +513,7 @@
513 513  )))
514 514  
515 515  
516 -=== Following materials are required ===
508 +Following materials are required
517 517  
518 518  * Solar panel for testing
519 519  * Digital multi-meter (DMM)
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523 523  * Spreadsheet with formulae
524 524  * Marker/ pen
525 525  
526 -=== Test Method ===
518 +Test Method
527 527  
528 528  1. Clearly label each solar panel to keep track of measurements.
529 529  1. Record the manufacturers power rating of the solar panel. **Perform all measurement outdoors under bright sunny conditions! **
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538 538  
539 539  
540 540  
541 -=== Developing a spreadsheet ===
533 +Developing a spreadsheet
542 542  
543 543  Create a spreadsheet with following cells
544 544  
... ... @@ -620,15 +620,17 @@
620 620  
621 621  Inside the “Vrl (Theoretical)” cell enter the following formula using the corresponding cells.
622 622  
623 -[[image:Screenshot 2024-12-09 103334.png||height="28" width="141"]]
615 +V_{RL}=I_{oc}\times R_L
624 624  
617 +
625 625  Inside the “Rated Power” cell enter the following formula using the corresponding cells.
626 626  
627 -[[image:Screenshot 2024-12-09 103419.png||height="31" width="157"]]
620 +P_{oc}=V_{oc}\times I_{oc}
628 628  
622 +
629 629  Inside the “Load Power” cell enter the following formula using the corresponding cells.
630 630  
631 -[[image:Screenshot 2024-12-09 103432.png||height="67" width="176"]]
625 +P_{RL}=\frac{V_{RL}}{R_L}\times V_{oc}
632 632  
633 633  
634 634  Inside the “Power Loss %” cell enter the following formula using the corresponding cells.
... ... @@ -635,9 +635,10 @@
635 635  
636 636  The calculated values that are negative represent power loss, and positive values are power gain. Performing “conditional formatting” on these cells with colour gradient (defined by colour break limits) would yield visually easy to recognise defective panels.
637 637  
638 -[[image:Screenshot 2024-12-09 103639.png||height="63" width="304"]]
639 639  
633 +Power\ Loss\ \%=\frac{P_{RL}}{P_{oc}}\times 100-100
640 640  
635 +
641 641  Perform all the calculations for each solar panel ID entered.
642 642  
643 643  Solar panels with power loss of 20% or more should be clearly marked as defective and not be used in any future deployments.
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