Non ROUTE
How to Collect “User” Defined Non ROUTE Data
Orders
sets the horizontal axis of the spectrum display in orders
(multiples of running speed).
Orders
requires an external 1XRPM
trigger that is phase referenced to the rotating shaft.
Units
–
Derives the measurement type and units. Note that the typ
e of measurement
(acceleration, acc. to vel., velocity, displacement, volts, pressure, or enveloped
acceleration) depends upon the type of seismic sensor used (accelerometer, velocity
pickup, or proximity probe).
Coupling
–
Determines the type of signal acquired for the measurement. Options are:
AC
–
Acquires the input signal from a buffered output (external) device. No
power is applied to the input by the Microlog.
DC
– Acquires the input signal without using a charge-
amplified sensor. No
power is applied to the input by the Microlog.
ICP
– Acquires the input signal from a charge amplified sensor. 4 mA constant
current is supplied to the input by the Microlog.
Input Channel
– Choose from
CH1, CH2, CH3, CH1 & CH2, CH2 & CH3
, or
CH1&CH2&CH3
A channel is a single point of monitoring, including the sensor and the
hardware needed to condition the input signal and to compare the input signal to pre-
determined setpoints.
For measurements taken with a Triax sensor, select
CH1 & CH2
& CH3
.
For more details on multi-channel measurements, refer to
How
to Set Up Multi-Spectrum / Multi-Time Measurements
, later in
this chapter.
Channel 1 = POINT.1_2 Channel 1
Channel 2 = POINT.1_2 Channel 2
Channel 3 = POINT.3_4 Channel 1
Detection
– Determines signal detection and scaling.
Choose from:
RMS
– The
R
oot
M
ean
S
quared overall calculated from the FFT or time data.
Peak
– Scaled from RMS as
√
2
⋅
RMS.
Pk-Pk
– Scaled from RMS as 2
⋅
√
2
⋅
RMS.
True Peak
– Detected from the time waveform rather than the FFT spectrum
as ½ (max Pk. – min Pk.).
True Pk-Pk
– Detected from the time waveform rather than the FFT spectrum
as (max Pk. – min Pk.).
Use the following table to determine which Peak or Pk-Pk setting will match the
CMVA65, CMVA55, CMVA40, and CMVA30’s detection method for the same POINT
type:
A - 12
SKF Microlog - GX Series
User Manual
