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IntelliPoint RF RML Series
2.6.2 Time Delay Action
2.6.3 Failsafe
2.6.4 Relay #2 Assignment
2.6.5 Function Check
Time delay action describes whether the relay
contacts are delayed from going into the alarm state or
recovering from an alarm state.
• FWD: Delays system from coming out of alarm.
• REV:Delays system from going into alarm.
• Instrument is supplied with TIME DELAY action set in
forward mode (FWD) position.
• Time delay action is field-selectable using jumper
located on sensing element/circuit board side of
housing.
Failsafe describes the level condition that causes the output
relay to de-energize and also the state of the relay upon loss
of power.
• High Level Failsafe (HLFS) is condition when probe
is covered. Relay will de-energize when level is high,
indicating high level upon loss of power. (N.O. contacts
open and N.C. contacts closed).
• Low Level Failsafe (LLFS) is condition when probe
is uncovered. Relay will de-energize when level is low,
indicating low level upon loss of power. (N.O. contacts
open and N.C. contacts closed).
• Instrument is supplied with failsafe jumper set in high
level (HLFS) position.
• Failsafe is field-selectable using a jumper located on
sensing element/circuit board side of housing.
RELAY #2 assignment refers to operation of RELAY #2, and
configures relays as (1) SPDT alarm and (1) SPDT fault relay
or (1) DPDT alarm relay. RELAY #1 is always an alarm
relay.
•
Alarm: RELAY #2 will follow RELAY #1, providing a
DPDT alarm relay.
•
Fault: RELAY #2 is used to indicate a fault.
•
Instrument is supplied with RELAY #2 jumper set in
alarm position.
•
RELAY #2 assignment is field-selectable using a jumper
located on sensing element/circuit board side of housing.
The Function Check (High Level Fail Safe Only)
test feature performs a confidence test of the system by
duplicating the same signal as a high-level alarm condition
without requiring the system to be removed from the tank.
Simulating a high level with the Function Check feature:
•
Checks the relay connections to other control devices.
The Function Check test is initiated with the press of the
Function Check button located on the sensing element/
10
Installation
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