Badger Meter 4050 Flow Computers - Manual (Page 4)

4050 Multi-Input Linear Flow Computer
2
2.SPECIFICATIONS
Frequency:
32 point Linearization curve of frequency/viscosity versus counts per units measured
(gallons, litres; etc) by interpolation between points and, by extrapolation, from the first and last two points of
the curve. An engineering factor is included for the conversion of units.
Frequency range:
The default range is 0.5hertz to 65kHz with accuracy +/- 0.002Hz +/- least significant digit. A low cut off can be
programmed by the end user, which will allow the computer to measure frequency down to 0.01 of a Hz.
Signal conditioning:
By Special request the COX 4050 can take signals from contact closure (reed switch): sine wave; low level
input to base of PNP transistor and two wire modulated current frequency inputs. The default is a standard TTL
type signal input or voltage pulse.
Sensor Excitation Voltage
An adjustable 1.5 to 24-volt dc output. Default is 12volts. Can be adjusted by the end user, it does involve
adjusting a potentiometer.
Please call the factory for details. (215) 639-0900 ext. 316
Analogue Inputs:
5 point Linearization, can be either 4 - 20mA or 0 - 10V dc.
Resolution: 16 bit
Accuracy: +/- 0.001% of full scale
Analogue Outputs:
Either 4 - 20mA or 0 - 10V dc.
Resolution: 16 bit
Accuracy: +/- 0.001% of full scale +/- least significant digit.
Pulse Outputs:
TTL or Open Collector outputs with a range of 1 hertz to 1 kHz
Relays:
Rating: 0.25A at 240Vac 9( Dry relay) .
Power supply:
A mains input or dc input can be used to supply the COX. The 110/240Vac is selectable
on a switch inside the Flow computer..
220 to 240Vac 50-60Hz will draw approx mA (this depends on options fitted)
110 to 120Vac 50 -60Hz will draw approx mA (this depends on options fitted)
12V dc will draw approx mA (this depends on options fitted)
24V dc will draw approx mA (this depends on options fitted)
CAUTION
Users are advised that although the equipment has protection and conforms to CE approvals, for trouble free
operation the Multiflow system should be connected to a clean power supply; i.e. free of noise and not in the same
phase as heavy machinery.
Any machinery using heavy contacts in the immediate proximity of Multiflow should be suitably suppressed.
Inductive loads switched by the volt-free relay contacts should be fitted with suitable snubber networks.