Burkert Type 8055 - Manual (Page 30)

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210_EN_BU_4_3_5X.d
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4 mA ≤ current ≤ 20 mA: normal working range;
20 mA < current ≤ 22 mA: out of range, measure above 100% f.s.
N.B.: To set this parameter to zero corresponds to disable the alarm
(POS. 4.8) Frequency output value in case of failure [Hz VAL.FAULT=%XXX]
Setting of the frequency value to assign to the on/off output in one or more of the following cases:
Empty pipe ; Coils interrupted ; ADC error
The allowed range is from 0 to 125% of the frequency full scale value. Although there are not specific
rules regulating cases like this one, it would be convenient to use the failure information as follows:
q 0% Hz
≤ frequency ≤ 100% f.s.: normal working range;
q 100% f.s. < frequency ≤ 110% f.s.: overflow, measure above the 100% of the f.s.;
q 115% f.s. ≤ frequency ≤ 125% f.s.: hardware alarm condition.
(POS. 4.9) Batch safety timer
This function is useful when you need control one or both of the followings condition:
q batch valve open and flow rate is zero
q batch valve closed and flow rate different to zero
When this alarm is activates, they are aborted the batch operation and the power supply of the valve.
The values of function are from 0 to 25.5 seconds and is active only if one or more of the batch
functions are enable.
MENU 5.INPUTS
(POS. 5.1-5.2-5.3-5.4) Totalise + reset enable [T/P+/-RESET=ON/OFF]
To make the reset of the totalise from the key board it is necessary enable the function 8.7 (modify
tot.) and one of function from 5.1 to 5.4.
From visualisation pages, proceed in the following mode:
1) Push the key , Set the L2 CODE if required and then push the key
2) Positioning the cursor on value field to modify the numerical value (it’s possible only modify the
totalizer enabled) push the key to confirm the modified value
3) Positioning the cursor on “RESET TOTALIZ.?” Push the key and then the key to confirm
or any other key to cancel this operation.
With function 8.7 disabled it’s possible reset the totalizer pushing the key from visualization page,
at the required “RESET TOTALIZ.?” Push the key and then the key to confirm or any other
key to cancel this operation
(POS.5.7)“Autozero” calibration external command enable [CALIBRATION=ON/OFF]
When this function is active, applying a voltage on the on/off input terminals the meter performs a
autozero calibration cycle. ATTENTION: if the voltage pulse is less 1 sec., the meter performs a
calibration cycle for compensate possible thermal drifts. If the voltage pulse is more 1 sec, the meter
performs a zero calibration of measure. This function enables/disables the automatic zero calibration
system. To perform the sensor it is absolutely necessary the sensor is full of liquid and that the liquid
is perfectly staying still. Even very small movement of the liquid may affect the result of this function,
and, consequently, the accuracy of the system.
(POS. 5.8) Range change external command enable
[RANGE CHANGE=ON/OFF]
Range change external command enables. When this function is enabled, applying a voltage on the
on/off input terminals the meter switches to the second measuring range (Fs2).
N.B.: the autorange doesn’t allow using the manual change range (see pos. 3.7)
(POS.5.10)Functions assigned to input 2 [ING.2=XXXXXX]
Choice of the function to associate the input 2 The functions are listed in the table below.
FUNCTION FOR INPUT 2
OFF: DISABLE
T+ RESET: RESET TOTAL DIRECT TOTALIZER FOR DIRECT FLOW RATE (+)
P+ RESET: RESET PARTIAL DIRECT TOTALIZER FOR DIRECT FLOW RATE (+)
T- RESET: RESET TOTAL REVERSE TOTALIZER FOR REVERSE FLOW RATE (-)
P- RESET: RESET PARTIAL REVERSE TOTALIZER FOR REVERSE FLOW RATE (-)
BATCH: START/STOP BATCH
MD SELECTION: STATIC SELECTION OF FORMULA