MEASUREMENT RESPONSE
The XPL+ Measurement Response ( P003 ) to material level change is designed to exceed the most
demanding installation requirements.
The Measurement Response setting automatically adjusts various parameters affecting the XPL+ response
to material level changes as follows:
If any of these parameters are independently altered, a Measurement Response parameter alteration
automatically changes the independently altered value.
*
Scan Delay ( P727 ) is globally set for all Point Numbers to the value associated with the fastest
Measurement Response ( P003 ) selected for any individual Point Number.
Slower Measurement Response provides greater measurement reliability.
Faster independently set Max Fill / Empty Rates may be impeded
by Echo Lock, Scan Delay and Shot Delay values.
APPLICATION EXAMPLES
The following examples describe the use of XPL+ programmable features, to meet the needs of specific
process measurement requirements.
It is highly unlikely that your specific installation will match one of these examples exactly.
However, by reviewing the example ( or combination of examples ) that matches your installation best, the
relationship between XPL+ features and process measurement requirements may be more easily recognized.
EXAMPLE 1...Level ( or Material Volume ) Measurement for a single vessel.
EXAMPLE 2...Space ( or Remaining Vessel Capacity ) Measurement for a single vessel.
EXAMPLE 3...Multi Point Average
EXAMPLE 4...Distance Measurement ( less than 60 m ).
PARAMETER VALUES DEPENDENT ON MEASUREMENT RESPONSE (P003) VALUE
NUMBER NAME (UNITS) 1 (slow) 2 (medium) 3 (fast) 4 (surge) 5 (turbo)
P070 Failsafe Timer (min) 100 10 1 0.1 0
P700 Max Fill Rate (m/min) 0.1 1 10 100 1000
P701 Max Empty Rate (m/min) 0.1 1 10 100 1000
P702 Filling Indicator (m/min) 0.01 0.1 1 10 100
P703 Emptying Indicator (m/min) 0.01 0.1 1 10 100
P704 Rate Filter (option) 4 3 2 2 2
P710 Fuzz Filter (% of P007) 100 50 10 1 0
P711 Echo Lock (option) 1 or 2 ( dependent on Material, P002 ) 0 0
P713 Echo Lock Window ( dependent on P701/P702 and time since last valid measurement )
P727 Scan Delay
*
(s) 55320
P728 Shot Delay (s) 0.5 0.5 0.5 0.2 0.1
P803 Shot/Pulse Mode (option) 2 2 2 1 1
P841 Long Shot Number (none) 10 5 2 1 1
PL-532 86
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