The creeping suppression works with a hysteresis of - 25%.
Example : Creeping suppression = 0.6 l/min
If the flow rate is lower than 0.45 l/min the pulse output/analog output becomes inactive. If the flow
rate exceeds 0.6 l/min a pulse is output again and added to the totalizer. Similarly, a value is
transmitted to the analog output again.
The analog output is available as current output 4-20mA or 0-20mA. This is selected with the
purchase order. As a standard it comes with current output 4-20mA. It can also be switched off by
using the device menu or Programmtool.
Diagnostic
Analog output QA
The sub menu "Diagnostic" shows the software/hardware version and other helpful values for
analysis. Actual values and the instrument´s present status are important to analyze the
measurement or failure by the manufacturer service
NOTICE
Fig. 12: Function of the creeping suppression illustrated with 0.6 l/min
15
PVDF-PE Plastic Ultrasonic Flow Meter
ULTRAFLO 5000
1.2
1.05
0.9
0.75
0.6
0.45
0.3
0.15
0
-25%
1. Creeping Suppression switch on
2. Creeping Suppression switch off
Flow [l/min]
Pulse/Analog output
active
inactive
active
inactive
active
1
2
2
1
Distributed By Aetna Plastics
www.aetnaplastics.com
Aetna Plastics - Phone 800.634.3074 - Fax 216.524.2280 - Email [email protected]
