Operating Manual
Universal Flow Computer UR06
Bopp & Reuther
A-EN-08728-URRev.B
Subject to changes
Page 37 of 55
Messtechnik GmbH
17.6.8 External control
The respective channel can be switched on and off via the external control. When the channel is
switched off, the flow rate is 0 and the counters are inactive, irrespective of the measured values. The
function can also be used to toggle between the primary and secondary channel. The primary channel
and the secondary channel are controlled via threshold 2 and threshold 3 respectively. One channel
must be controlled directly and the other inversely (inv.) for switching.
Selection:
without,
threshold 2 (3), threshold 2 (3) inv.
17.6.9
Pulse value
If a pulse pick-up (volume or mass) is selected as the volume transmitter, the pulse value is set here.
Range:
0.001 pulse/m3 ... 1e8 pulse/m3 (or pulse/kg)
17.6.10 Ratio X:Y
The ratio of the two channels can be set for measurements with a dual pulse. With a ratio of 1:1, the
two channels are compared to the exact pulse and according to their ratio; with a ratio that does not
equal 1:1, only the ratio can be compared.
Range:
0.001 ...
1
… 1000
17.6.11 Leak flow mode
Here it is set whether the volumes below the leak flow rate are counted or not. In “Count” mode, all
pulses are counted and converted, even if the instant. value of the flow rate is below the leak flow rate.
In “Not count” mode, pulses are not counted below the leak flow rate.
Selection:
Not count
, count
17.6.12 Calibration threshold
The calibration threshold is set above the leak flow rate for measurements as permitted by the
German Board of Weights and Measures. If the set calibration threshold is below the leak flow rate,
the setting is not considered. Error pulses for a dual pulse input are not counted below the leak flow
rate.
Range:
0 ... 10%
17.6.13 Residence time
If the calibration threshold is set to a greater value than the leak flow rate, the measurement can only
remain in this flow range during the residence time. If the residence time is exceeded, an error
message is displayed.
Range:
0 s ... 600 s
17.6.14 Basic pulses
For the monitoring of the function of the dual pulse inputs. Number of volume pulses during which a
certain number of interfering pulses are evaluated. If the basic number of pulses is achieved, the
previous error pulses are deleted.
Range:
0 ... 50000
17.6.15 Error pulses
The number of maximum error pulses within the basic pulses. If the number of set error pulses within
the basic pulses is exceeded, an error message is displayed. The volumes are then added up in the
fault counters. The error message is displayed until the number of set error pulses is no longer
exceeded for a full basic pulse interval.
Range:
1 ... 100
17.6.16 Minimum measuring time
The minimum measuring time for the frequency measurement is set here. This way it is possible to
adapt the measuring time to the behavior of pulse pick-ups which do not output equidistant pulses.
Ideal values for: Kamstrup 1000 ms, hydrometer 2000 ms.
Range:
100 ms …10000 ms
