Ametek Drexelbrook IntelliPoint RF RNL Series, Installation And Operating Instructions Manual

Page: 17 / 89

Installation
11
2.6 Circuit Board
The circuit board is located on the sensing element/ circuit side
of the housing (marked on label). Remove the housing
lid to access the status LEDs, time delay adjustment, and
configuration jumpers. See Figure 2-4.
LLFS
FAILSAFE
HLFS
LLFS
FAILSAFE
HLFS
TIME DELAY
0-60 SECONDS
0 60
FWD
TD
REV
FWD
TD
REV
PRESS FOR
MANUAL CERTIFY
VERIFY
AUTO
ON
OFF
OFF
ON
AUTO
VERIFY
FAULT
RELAY #2
ALARM
FAULT
RELAY #2
ALARM
RED
RELAY 2
OR FAULT
ALARM
K2
RED
RELAY 1
ALARM
GREEN
K1
POWER
RECALIBRATION
PRESS FOR
POST
TP1
Figure 2-4
Circuit Board (shown in detail)
Do NOT push the Recal button without first
ensuring that the material being measured is below
the sensing element.
SENSING ELEMENT
CIRCUITS VIEW
2.6.1 Time Delay
The TIME DELAY adjustment is located on the sensing
element/ circuit board side of the housing. It is used to help
stop an oscillating relay output due to agitation or waves in the
vessel. The time delay adjustment can be field-adjusted from
0 to 60 seconds. The unit is shipped with the TIME DELAY
setting at zero (0) seconds.
The Time Delay adjustment is a 270-Degree turn pot and is at
zero seconds when in the full counter-clockwise position. Do
not force the pot past the stop or damage will occur.