CBLUSB01 datasheet(24/36 Pages) REDLION

24 / 36 page

Enter desired hysteresis value. See Setpoint Alarm Figures for visual

explanation of how setpoint alarm actions (balance and unbalance) are affected

by the hysteresis. When the setpoint is a control output, usually balance

hysteresis is used. For alarm applications, usually unbalanced hysteresis is used.

For unbalanced hysteresis modes, the hysteresis functions on the low side for

high acting setpoints and functions on the high side for low acting setpoints.

Note: Hysteresis eliminates output chatter at the switch point, while time delay

can be used to prevent false triggering during process transient events.

















HYSTERESIS VALUE



to 



to 

SETPOINT VALUE

When , the alarm is disabled (after a power up) until the trigger point is

crossed. Once the alarm is on, the alarm operates normally per the Setpoint

Action and Reset Mode.

















OFF TIME DELAY

ON TIME DELAY



to  sec.









OUTPUT LOGIC













RESET ACTION









to  sec.









STANDBY OPERATION





Enter desired setpoint alarm value. These setpoint values can also be entered

in the Display Mode during Program Lock-out when the setpoint is programmed

as  in Parameter Module 3. When a setpoint is programmed as deviation or

band acting, the associated output tracks  as it is changed. The value entered

is the offset, or difference from .

Enter the time value in seconds that the alarm is delayed from turning on after

the trigger point is reached. A value of 0.0 allows the meter to update the alarm

status per the response time listed in the Specifications. When the output logic

is , this becomes off time delay. Any time accumulated at power-off resets

during power-up.

Enter the time value in seconds that the alarm is delayed from turning off after

the trigger point is reached. A value of 0.0 allows the meter to update the alarm

status per the response time listed in the Specifications. When the output logic

is , this becomes on time delay. Any time accumulated at power-off resets

during power-up.

Enter the output logic of the alarm output. The  logic leaves the output

operation as normal. The  logic reverses the output logic. In , the alarm

states in the Setpoint Alarm Figures are reversed.

Enter the reset action of the alarm output.



= Automatic action; This action allows the alarm output to automatically

reset off at the trigger points per the Setpoint Action shown in Setpoint Alarm

Figures. The “on” alarm may be manually reset (off) immediately by a front

panel function key or user input.The alarm remains reset off until the trigger

point is crossed again.



= Latch with immediate reset action; This action latches the alarm

output on at the trigger point per the Setpoint Action shown in Setpoint Alarm

Figures. Latch means that the alarm output can only be turned off by front

panel function key or user input manual reset, serial reset command or meter

power cycle. When the user input or function key is activated (momentary or

maintained), the corresponding “on” alarm output is reset immediately and

remains off until the trigger point is crossed again. (Previously latched alarms

will be off if power up Display Value is lower than setpoint value.)



= Latch with delay reset action; This action latches the alarm output

on at the trigger point per the Setpoint Action shown in Setpoint Alarm

Figures. Latch means that the alarm output can only be turned off by front

panel function key or user input manual reset, serial reset command or meter

power cycle. When the user input or function key is activated (momentary or

maintained), the meter delays the event until the corresponding “on” alarm

output crosses the trigger off point. (Previously latched alarms are off if

power up Display Value is lower than setpoint value. During a power cycle,

the meter erases a previous Latch 2 reset if it is not activated at power up.)

Enter the probe burn-out action. In the event of a temperature probe failure,

the alarm output can be programmed to go on or off.

















SETPOINT ANNUNCIATORS

PROBE BURN-OUT ACTION (PAXT ONLY)













Alternate Setpoints

An Alternate list of setpoint values can be stored and recalled as needed. The

Alternate list allows an additional set of setpoint values. (The setpoint numbers

nor rear terminal numbers will change in the Alternate list.) The Alternate list

can only be activated through a function key or user input programmed for 

in Module 2. When the Alternate list is selected, the Main list is stored and

becomes inactive. When changing between Main and Alternate, the alarm state

of Auto Reset Action alarms will always follow their new value. Latched “on”

alarms will always stay latched during the transition and can only be reset with

a user input or function key. Only during the function key or user input

transition does the display indicate which list is being used.

ALARM

STATE

OFF

Hys

OFF

OFF ON

OFF

MANUAL

RESET

SP - Hys

( Auto)

(LAtC1)

(LAtC2)

Setpoint Alarm Reset Actions

The  mode disables display setpoint annunciators. The  mode

displays the corresponding setpoint annunciators of “on” alarm outputs. The



mode displays the corresponding setpoint annunciators of “off” alarms

outputs. The  mode flashes the corresponding setpoint annunciators of

“on” alarm outputs.

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