FAQ Maintenance Guidelines from Web Interface
1. Introduction
- This procedure describes a typical monthly check of a GeoSIG system. It will give some basic information about the state of the recorder and sensor.
2. Required Tools
- Recorder and Sensor you want to check, running and connected to network
- Computer connected to the same network to access the recorders web interface
- Software to read test pulse files recorded in miniseed format (GeoDAS is recommended)
3. Check for existing Procedures
- Please check if there is a project-specific procedure for your system to follow instead—especially if your system is tied to an alarm system, as the execution of the test pulse in this procedure may cause an alarm.
4. Access the Web Interface
- Open your web browser, enter the IP address of your Recorder, and login as admin. (Default password is 123456)
5. Check Errors and Warnings
- Choose tab Status and Maintenance -> Errors and Warnings
- Check the section Errors and Warnings and make sure no errors are present (all checkmarks green)
6. Check Battery Voltages
- Choose tab Status and Maintenance -> Hardware
- If the recorder is powered from AC (AC power input ON), Current Voltage (V) should at least show 13.5V
- If your recorder (only GMS-xx, GMSplus and fora) has a backup battery, the Backup Battery Voltage (V) should be at least 3.0V
- Main battery should be replaced every 3 years (See Warnings and Safety in User Manual)
- Backup battery should be replaced every 5 years (See Warnings and Safety in User Manual)
- Battery installation date can be set under Status and Maintenance -> Maintenance
7. Check Time Synchronisation
- Choose tab Status and Maintenance -> Recording Status
- Check the field Synchronisation Status
- Device Synchronises to: should show NTP or GPS (whenever possible, an external time source such as NTP or GPS should be used)
- Synchronisation Status should show Locked
8. Remove offset
- Choose tab Status and Maintenance -> Maintenance
- In the field Miscellaneous Requests, choose Request baseline correction from the dropdown of commands -> click [Run Command]
- A popup will appear; confirm by clicking [Yes]
9. Request Test Pulse
- Choose tab Status and Maintenance -> Maintenance
- In the field Miscellaneous Requests, choose Request test pulse from sensor from the dropdown of commands -> click [Run Command]
- A popup will appear; confirm by clicking [Yes]
- A miniseed file with the recorded pulse (file prefix CAL_) will be saved tot he SD-card of your recorder
- Choose tab Data Explorer, choose Automatically Detected Events from the dropdown and search for the recorded test pulse (file prefix (CAL_)
- You can download the file by clicking on it
10. Check Test Pulse
- The shape of the test pulse depends on the sensor type. A reference pulse recorded at the factory is shipped for each sensor on the usb key. The file can be found in the folder Calibration\Test_files_Sensors (file prefix TP_ with the SN of the sensor). It is also recommended to record a test pulse after installation and keep it with later records for comparison.
- Double-click the file to open it in GeoDAS
- Click into the yellow part of the window to make the cursor appear
- Move the cursor to the flat part of the pulse
- Check that the value of the flat part for each axis is within the range of 0.1125g-0.1375g