Contrec 505 BC01 Dual Stage Batch Controller

The Contrec 505 BC01 Batch Controller is a dual stage application batch controller for the reliable measurement of preset quantities using a volumetric frequency input. It can be used as a single or dual stage contoller and it is suitable for fast batch applications providing the operator with clear local readout and can be controlled via communications in more automated systems.

When access is authorised there is quick access to commonly used preset values directly from the front panel. Automatic overrun compensation caters for system delays such as valve closure for precise volumes.

The 505 BC01 instrument is compatible with a wide range of flowmeter frequency outputs, including millivolt signals, reed switches, Namur proximity switches and pulse trains via its smart front-panel program selection.

Features

Calculations

Specifications

Drawings

Downloads

505 BC01 Dual Stage Batch Controller features

Tailored for volumetric frequency flow input
Single or Dual stage control
Quick access to common batch quantities
No-flow, leakage and overflow error detection
Remote RUN/STOP/RESET
Allows for non-linear correction
Storage of 100 transactions with time and date stamp
Selection of second language and user tags
Selectable protocols on serial ports including Modbus RTU and Printer output
Backlit display with LCD backup

Displayed Information

The front panel display shows the current values of the input variables and the results of the calculations. A list of the variables for this application and their type (total or rate) is shown at the end of this document.

The instrument can be supplied with a real-time clock for storage of up to 100 transactions with time and date stamps.

Communications

There are two communication ports available as follows:

RS-232 port
RS-485 port

The ports are available for remote data reading, printouts and for initial application loading of the instrument.

Retransmission & Control Outputs

The instrument can retransmit any main menu variable. The digital outputs can retransmit totals as pulses or operate as logic levels for control or error outputs. If the instrument has the advanced option, it outputs rates as a 4-20 mA signal.

Relay Outputs

The relay outputs 1 and 2 are used to control the flow of product for each delivery. These contacts are normally open and can be used to drive external relays, valves, pump circuits etc.

Software Configuration

The instrument can be further tailored to suit specific application needs including units of measurement, custom tags, second language or access levels. A distributor can configure these requirements before delivery. Instrument parameters including units of measurement can be programmed in the field, according to the user access levels assigned to parameters by the distributor.

All set-up parameters, totals and logged data are stored in non-volatile memory with at least 30 years retention.

Calculations for the 505 BC01 Batch Controller

The total and flowrate are derived from accurately measured frequency and the number of received pulses.

volume = pulses / k-factor

volume flow = frequency / k-factor

Automatic overrun compensation calculates the new valve closure point to ensure correct delivery by averaging the overrun amount from the last three complete batches.

The overrun compensation value is valid for a new preset value provided the stored overrun is less than 20% of the new preset.

505 BC01 Specifications

Operating Environment	Temperature	0°c to +60°c (conforma coating) +5°c to +40°c (no coating)
	Humidity	0 to 95% non condensing (conformal coating) 5% to 85% non condensing (no coating)
	Power Supply	95 - 135V AC or 190 - 260V AC or 12 - 28V DC
	Consumption	6W (typical)
	Protection	SEaled to IP65 (Nema 4X) when panel mounted
	Dimensions	147mm (w) X 74mm (h) X 167mm (d)
Display	Type	Backlit LCD with 7 digit numeric display and 11 character alphanumeric display
	Digits	15.5mm high
	Characters	6mm high
	LDC Backup	Last data visible for 15 minutes after power down
	Update Rate	0.3 second
Non-volatile Memory	Rentention	> 30 years
Non-volatile Memory	Data Stored	Setup, Totals and Logs
Approvals	Interface	CE compliance
Approvals	Data Stored	IECEx, ATEX and CSA approved enclosures available for hazardous area
Real Time Clock (optional)	Battery Type	3 volts lithium button cell (CR2032)
Real Time Clock (optional)	Battery Life	5 years (typical)
Fequency Input (general)	Range	0 to 10kHz
	Overvoltage	30V maximum
	Update Time	0.3 seconds
	Cutoff Frequency	Programmable
	Configuration	Pulse, coil or NPS input
	Non-linearity	Up to 10 correction points
Pulse	Signal Type	CMOS, TTL, open collector, reed switch
Pulse	Thershold	1.3 volts
Coil	Signal Type	Turbine and sine wave
Coil	Sensitivity	15mV p-p minimum
NPS	Signal Type	NPS sensor to Namur standard
Remote Logic Inputs	Signal Type	Voltage free contact, open collector
Relay Output	No. of Outputs	2 relays
	Voltage	250 volts, AC, 30 volts DC maximum
	Current	3A maximum
Communication Ports	Ports	RS-232 port
	Baud Rate	2400 to 19200 baud
	Parity	Odd, even or none
	Stop Bits	1 or 2
	Data Bits	8
	Protocols	Modbus, RTU, Printer*
Transducer Supply	Voltage	8 to 24 volts DC, programmable
	Current	70mA @ 24V, 120mA @ 12V maximum
	Protection	Power limited output
Pulse/Digital Output	Signal Type	Open collector, non-isolated
	Switching	200mA, 30 volts DC maximum
	Saturation	0.8 volts maximum
	Pulse Width	Programmable: 10, 20, 50, 100, 200 or 500ms
4-20mA Output (optional)	Supply	24 volts DC internal, non-isolated
	Resolution	0.05% full scale
	Accuracy	0.1% (full temperature range, typical)

Important: Specifications are subject to change without notice

*Printer protocoal is available only if RTC option is installed.

505 BC01 Drawings for product dimensions

505 BC01 Batch Controller Document Downloads

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