Recent Changes - Search:

EPOS-N - European Plate Observing System

Projects

Seismometers / vault construction

Digitizers

Interconnections

Stations: Upgrade/install notes

Calibrations

SeismoLAB

Ideas for improvements

Installation / Inventory

Misc

edit SideBar

HOPEN UPGRADE / MAINTENANCE


1 2017 - APRIL: INSTALLASJON AV "INSULATING COVER"


Klikk for stort bilde.
Inne på stasjonens "instrumentrom" står den termiske hetten lagret nede på gulvet. (Klikk for stort bilde.)

2 2016 - MARS: INSPEKSJON AV SENSORKUM


Click for larger version.
View from vault opening. Click to enlarge.
Click for larger version.
Vault parts. Click to enlarge.
Click for larger version.
Verify that sensor is level. Adjust height of feets if needed (remember locking nut afterwards). Click to enlarge.

Inspeksjon av sensorkummen skulle være en grei jobb:

a) Fjerne kondens som måtte ha dannet seg nede på bunnen. Pass på å ikke komme borti sensoren.

b) Sjekk om det er fuktighet inne i koplingsboks med gjennomsiktig lokk, og i så tilfelle løsne lokk (stort flatt skrujern trengs) og tørk opp.

c) Sjekk om libellen på sensor viser at den er i vater. Boblen skal være innenfor ringen. Hvis den er utenfor i dette tilfellet - bare gi melding, for den må uansett vatres på nytt etter flyttingen på 10 cm, for å få plass til hetten.

d) Muligens trengs det smøring på pakningen mellom lokk og kum.

Se vedlagt pdf-fil der delene nede i kummen er identifisert, samt bilder.

3 2016 - MARCH: UPS INSTALLATION


Due to some unexplainable digitizer power resets we want to install UPS.

Click for larger version.
Digitizer status screen, showing unexplainable reboots. Click to enlarge.
Click for larger version.
UPS, connecting battery after unpacking. Click to enlarge.

3.1 UPS ordered: APC model name Back-UPS CS 650


Click to enlarge. Click to enlarge. Click to enlarge.
Mfr APC - Schneider
Model name Back-UPS CS 650
Model number BK650EI
S/N 4B1536P22589
Supl ELFA DISTRELEC
Supl P/N 16973999
User Manual PDF (Also local copy.)
Material Safety Data Sheet (MSDS) (due to lead battery) APC_lead_battery_eng_msds.pdf
Battery type Maintenance-free sealed Lead-Acid battery with suspended electrolyte : leakproof
Replacement battery (supposed to last 3-6 years, depending on number of deep discharge cycles). Model RBC17

ELFA Distrelec, P/N: 16947539

Runtime graph Click to enlarge.
Runtime graph. Click to enlarge.
Cal/test data -

3.2 Configuration - check later


From User Manual:
UPS configuration
Sensitivity setting is set to HIGH -> 3 indicators flashing (yellow, red and red - number 2,3 and 4 counting from top)

Sensitivity setting: HIGH -> 3 indicators flashing (yellow, red and red - number 2,3 and 4 counting from top)

3.3 Status indicators, alarms


4 2010: CONFIGURATION OF ED2400-235 DIGITIZER


Configuration is accomplished using ModMon program from the manufacturer (EarthData).

Select Linear Phase and Low Gain on all channels:

Download ModMon ZIP file: http://www.earthdata.co.uk/downs/modmon32.zip

Unzip file. No further installation necessary. Connect digitizer serial port to PC RS-232 input. Double-click Modmon32.exe. Here's the initial screenshot:

4.1 ModMon initial screen


ModMon initial page.

4.2 ModMon configuration screen


Configuration - setup of Linear Phase filter, Low Gain on all channels.

4.3 ModMon verify settings


Verify correct settings.



4.4 Digitizer settings as of 8 December 2008


Digitizer used:

  • Earth Data mod. 2400-235

Referring to Earth Data document EDM012: Instruction Manual for 24 Bit Multi Sample Rate Digitizer, Mod. No. 2400-235, page 12 Mod Header description. The data stream was captured in Hopen-dmp1.txt (this is a binary file - right click and download, view in hex editor.

Hex view of this file:

According to ED2400 "tips & trics" web page, the HOPEN ED2400-235 had the following configuration:

  • Digital filter characteristics: Minimum Phase (the screenshot above shows "LP" - but it really means MP = Minimum Phase, refer to description of this anomaly).
  • Gain: G0 -> All channels low gain



4.5 Connecting digitizer to laptop


The ED2400 digitizer is placed next to the logging PC, which is a compact industrial computer called BOXER-2:

Digitizer Earth Data mod. 2400-235

Compact industrial computer BOXER-2. Serial data from digitizer to COM port on left side.

Disconnect serial data cable from digitizer and connect to laptop serial port (9-pin D-SUB male):

9-pin laptop serial port, male
9-pin serial port on laptop, looks like this.

Newer laptops are normally not equipped with 9-pin serial ports. Instead, they have USB connectors, and you have to use a USB-to-serial adapter.

AAEON Embedded Controller PC BOXER-2:

Edit - History - Print - Search
Page last modified on April 11, 2017, at 09:53 AM
Electronics workshop
Department of Earth Science - University of Bergen
N O R W A Y