VeriFast
TM
LVDT – User Manual – FDP-VFA-LVD-UM-EL-1.15-0918
23
Learning about the VeriFast LVDT Signal Conditioner
Operation of LED Indicators
The VeriFast LVDT Signal Conditioner is shown in Figure 4 to the right.
The mode of operation for the LED indicators is explained in Table 3
that follows.
For a complete list of all Signal Conditioner electrical connections and
technical specifications, please refer to
on page 44.
Figure 4 – LVDT Signal Conditioner
Table 3 – Operation of the LED indicators
LED
Name
Function
LED Color
During
Operation
Status
Description
OPER/
CAL
Module Status
Red
Lit
Normal operation
Flashing
Calibration mode
(+)
Core Position
LEDs
Yellow (+)
Lit
Indicates core is above null position during
calibration
Flashing
Indicates open Primary circuit
NULL
Green
(NULL)
Lit
Indicates core is at null position when in
calibration mode
Indicates that the calibration is complete
(-)
Yellow (-)
Lit
Indicates core is below null position during
calibration
Flashing
Indicates open Secondary circuit
(+)
Synchronization
Status
Yellow (+)
Lit
Indicates this unit is a Slave if multiple units
are installed.
NULL
Green
(NULL)
Lit
Indicates this unit is the Master if multiple
units are installed.