SKF FL15 - Features; Scaling of the Analog Outputs

FMON10JEN 07.04.2017 Rev. 10J
54 (54)
Figure 23 General, 1: FL mA output module, 2: FL Group electronics
14.3.1 Features
- Compatible with all models of Flowline monitor FL-15, FL-50 and FL-100.
- Each output is scalable independently by the user interface of Flowline monitor.
- Current outputs are active type. Each output supplies current to the customer’s measuring circuit.
- The module has a separate 24VDC power supply input for current loops
- The power supply and current loops has galvanic isolation from the supply voltage of Flowline monitor
- It can be supplied from:
 24V DC power supply voltage of the monitor (no galvanic isolation)
 a separate 24V DC power supply (with galvanic isolation)
- Allowed loop resistance 0…500ohm
- Output resolution 1/1000 of the full scale
14.3.2 Scaling of the analog outputs
When the module is installed in the monitor, two new parameters appear for each flowmeter in the setting
mode:
SCL (scale low) The flow rate for 4mA output
SCH (scale high) The flow rate for 20mA output
The current output / flow rate relationship is linear between the set limit values.
The default settings are
- SCL=0 l/min, SCH=15 l/min (31.7pints/min) for FL-15
- SCL=0 l/min, SCH=50 l/min (105.7pints/min) for FL-50
- SCL=0 l/min, SCH=100 l/min (211.3pint/min) for FL-100.
- See chapter 10.4 Flow meter specific settings
Flow values beyond scaled values:
- Flows > SCH: mA output is linear up to 20,5mA,