Badger Meter 4050 Flow Computers - Manual (Page 3)

4050 Multi-Input Linear Flow Computer
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1.INTRODUCTION TO THE LINEAR MULTI-FLOW COMPUTER
(COX) MODEL
4050
Designed to meet the ever-changing requirements of flow metering, the Multi-flow computer can be tailored to
virtually any flow application. It is designed to accept up to 3 meters and correct for temperature changes and
produce a usable output in whatever flow units you require. The 4050 is designed to work with manifold
systems and switches relays that are adjustable at which point they trigger. This output (dry) can be used to
change valve states and switch which meter measures the flow.
Each 4050 is programmed to your own individual requirements, software is written for each unit as and when
required. Each 4050 comes standard with a frequency input card, an analogue input card , a relay card and a
communication card. Other cards are optional, please call for additional options.
Frequency Input Card
Up to three frequency inputs can be accepted from flow sensors; each input with a
32 point Linearization curve for the derivation of flow and a programmable factor for unit conversion.
Programmable cut-off points enable displays of both frequency and flow to be inhibited below pre-set values.
The update is programmable from 0.02 seconds up to virtual infinity. (Standard)
Analogue Input Card 16 bit Resolution Up to six analogue process inputs 0-10V or 4 to 20mA, are
available for use with sensors of temperature; flow; density; viscosity; pressures - absolute, barometric, gauge
or differential, and other factors requiring compensation. Each input has a five point Linearization curve. For
conversion to alternative mass units a programmable mass factor can be used.
Analogue Output Card 16 bit Resolution Up to three analogue outputs 0-10V or 4 to 20mA,
proportional to any desired parameter, are available for connection to remote facilities such as alarms,
indicators, chart recorders, PLCs and the like. The analogue output reference parameter may be configured by
the user.
Pulse Outputs Three TTL or open collector outputs are available for retransmission of rate, or for output of
pulses per unit volume of total. These outputs, too, may be connected to remote indicators, totalizers or PLCs.
Relay Card The Multi-flow can accommodate up to three volt-free relays which can be deployed for alarm
purposes. If the process includes a batching unit or controller, the relays can be used to control valves
solenoids or pump starters
Communications To monitor parameters or program calibration data RS232, RS485 and interfaces can be
incorporated. For connection to panel or desk mounted printers either a serial or parallel port can be
incorporated, with the option of time and date indication.
The Main Display The standard display is alphanumeric with red dot matrix characters, 152mm wide and
18mm high, which give an exceptionally wide viewing angle. The display itself comprises three fields: on the
left, a maximum of five characters may be used to give the parameter identity; in the centre is the read-out of
the quantity being measured; and to the right are the characters defining the units of measurement. These can
be changed by the end user. User test routines, and buzzer.
Data Entry All calibration data are entered by means of a hand-held infra-red keypad following a successful
pass-code entry.
To prevent incorrect data entry, when two Multiflow units are positioned in close proximity, the reception of the
unit that is not being addressed can be inhibited by a sequence of keystrokes on the front panel keyboard of
that unit.