Guralp Systems Limited
MAN-FOR-0002 - Güralp Fortimus - Technical Manual

Chapter 10. Appendix 1 – Instrument/channel names

The tables in this section show the names and codes of the streamed channels along with the record names and channel codes for recorded data. The first character “x” in miniSEED channel code represents the sample rate. The possible values are shown in the table below:

F

≥ 1000 Hz to < 5000 Hz

C

≥ 250 Hz to < 1000 Hz

H

≥ 80 Hz to < 250 Hz

B

≥ 10 Hz to < 80 Hz

M

> 1 to < 10

L

≈ 1

V

≈ 0.1 Hz

U

≈ 0.01 Hz

R

≥ 0.0001 Hz to < 0.001

The “Data record names” of the seismic channels and MEMS accelerometer channels are postfixed with “A” or “B”. This notation distinguishes between the two different sample rates that is possible to select for each recorded channel. For example, the recorded streams S0AccZA and S0AccZB carry digitisations of the same signal, differing only in the sample rate.

10.1 Environmental channels

Sensor

Comp.

Data streaming

Data recording

Digital filter mode

Live stream name

Live Stream code

Data record name

Mini
SEED
channel code

MEMS accelerometer

1

Acausal

S0AccZ

0AXL10

S0AccZA

xN1

S0AccZB

xN1

Causal

S0AccelZLowLat

0AXL1C

xN1

2

Acausal

S0AccN

0AXL20

S0AccNA

xN2

S0AccNB

xN2

Causal

S0AccelNLowLat

0AXL2C

xN2

3

Acausal

S0AccE

0AXL30

S0AccEA

xN3

S0AccEB

xN3

Causal

S0AccelELowLat

0AXL3C

xN3

Magnetometer

1

Acausal

S0MagZ

0MAG10

S0MagZ

xF1

2

Acausal

S0MagN

0MAG20

S0MagN

xF2

3

Acausal

S0MagE

0MAG30

S0MagE

xF3

Input voltage

Acausal

S0Voltage

0VINP0

S0Voltage

xYV

Digitiser power usage

Acausal

S0Power

0PINP0

S0Power

xYP

Humidity

Relative within Minimus

Acausal

S0HumidA

0HUMA0

S0HumidA

xIO

Within sensor enclosure

Acausal

S0HumidB

0HUMB0

S0HumidB

xIO

Pressure

Within sensor enclosure

Acausal

SnPressure

nPRSR0

SnPressure

xDI

External

Acausal

SnExtPressure

nPRSR1

SnExtPressure

xDO

Temperature

Precision temperature

Acausal

S0TemprA

0TMPA0

S0TemprA

xKO

First derivative of temperature

Acausal

S0TemprD

0TMPD0

xKD

Internal Clock

Internal clock offset from GNSS

Acausal

ClkGpsOffset

0CGPSO

ClkGpsOffset

BEO

Internal clock period difference from GNSS

Acausal

ClkGpsPeriod

0CGPSP

ClkGpsPeriod

BEF

Internal clock DAC frequency pulling

Acausal

ClkDacFreqPull

0CVDAC

ClkDacFreqPull

BED

Test internal clock drift

Acausal

ClkTestPbpS

0CTSTB

ClkTestPpbS

BEB

Internal clock offset from PTP

Acausal

ClkPtpOffset

0CPTPO

ClkPtpOffset

BEP

Delay MS

Acausal

ClkPtpDelayMS

0CPDMS

ClkPtpDelayMS

BEA

Delay SM

Acausal

ClkPtpDelaySM

0CPDSM

ClkPtpDelaySM

BEB

Mean path delay

Acausal

ClkPtpMeanPathDelay

0CPMPD

ClkPtpMeanPathDelay

BEC

PLL clock offset

Acausal

SnPLLOffset

0PLLO0

SnPLLOffset

xYO

10.2 Broadband accelerometer channels

Sensor

Comp.

Data streaming

Data recording

Digital filter mode

Live stream name

Live Stream code

Data record name

Mini
SEED
channel code

Analogue accelerometer

Vertical

Acausal

S0SeisZ

0ACCZ0

S0SeisZA

xNZ

S0SeisZ

0ACCZ2

S0SeisZB

xNZ

Causal

Se0SeisZLowLat

0ACCZC

Se0SeisZLowLat

xNZ

North

Acausal

S0SeisN

0ACCN0

S0SeisNA

xNN

S0SeisN

0ACCN2

S0SeisNB

xNN

Causal

Se0SeisNLowLat

0ACCNC

Se0SeisNLowLat

xNN

East

Acausal

S0SeisE

0ACCE0

S0SeisEA

xNE

S0SeisE

0ACCE2

S0SeisEB

xNE

Causal

Se0SeisELowLat

0ACCEC

Se0SeisELowLat

xNE

Calibration channel

Acausal

S0Calib

0ACCC0

xCA