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DESCRIPTION

The INVALCO Model 700 Batch Controller is designed to interface with all INVALCO turbine meters and a wide range of flow measurement devices produced by other manufacturers.

Specifications

Display	Six digit LCD, 0.7” high digits.
Keyboard	Sealed membrane keyboard with four keys.
Transducer Supply	8-24 Vdc field adjustable, 50mA maximum (2-3V less than minimum input voltage)
Power Requirements	11.5 to 28.0 Vdc, 140mA typical (no options). AC Mains: Set internally to 95-135 Vac or 190-260 Vac.
Operating Temperature	32°F to 130°F (0°C to 55°C).
Facia	Watertight to NEMA 3S or IP65.
Dimensions	5.7” (144mm) wide x 2.8” (72mm) high x 7.4” (188mm) deep.
Panel Cutout	5.5” (139mm) x 2.6” (67mm).
Frequency Input Frequency Range: Input Circuits: K-Factor Range: Non-Linear Correction:	Minimum - 0.25 Hz on rate. 0 Hz on total. Maximum - 10 kHz. Will accept most sine, logic, and proximity switch inputs. 0.1000 to 50,000. Up to ten correction points.
Scaled Pulse Output Pulse Width: Duty Cycle: Output:	10 mSec (negative going pulse). Maximum of 49 pulses per second. An open-collector transistor will sink 100 mA maximum. The pulse output is suitable for driving remote counter or PLCʼs.
4-20mA Input Option (700LA Only) Input: Input Impedance: Accuracy: Circuit:	For density or temperature. 250 ohms. 0.05%. The 250 ohm resistors are connected to a common signal ground (current sinking).
RTD Input Option (700 LR) Temperature Measurement Range: Accuracy: RTD Type: Linearity:	-148°F to 392°F (-100°C to 200°C) Note: A wider temperature range can be handled via a 4-20mA input. 0.1°C Platinum PT100, two, three, or four-wire The non-linearity of the RTD is internally compensated for.
RS232/422/485 Option Type: Function: Printer: Computer: Baud Rate: Data Bits: Parity: Time:	RS232, four wire RS422 and two wire RS485 are provided. When using the RS422/485, multipoint communication can be implemented with up to 32 instruments connected to a common bus. Printer and computer protocols are A print is initiated on each reset or at a programmable time interval. Protocols are provided for roll and column printers An ASCII-based protocol enables all displayed 300 to 9,600 Seven or eight Non, odd, or even A real-time clock is provided to give time and date on each output.
4-20mA Output Option Function: Resolution: Accuracy: Maximum Load: Isolation:	Via 4mA and 20mA, fully scaled and programmable. Ten bits. Better than 0.1%. Voltage Burden: 5V;500 ohms internally powered;950 ohms from external 24 Vdc. Output is isolated.
Relay Output Option (Valve Control) Function: Maximum Switching Power: Maximum Switching Voltage: Maximum Switching Current:	One or two stage valve control is provided as standard. 250 VA. 250 Vac, 30 Vdc. 5 Amps.

OPERATION

Four buttons on the front panel enable the batch quantity to be set, and the batch operation to be started, stopped, and reset.
To set a batch quantity, the Batch Set button is pressed, and the buttons are used to change and increment digits. Once set, the Batch Set button is again pressed to return to the Run mode. Four LEDʼs indicate the operational status at all times. In the Run mode, the Display button can be used to display both the flow rate and accumulated total.
Two output relays provide control for single or dual-stage valve operation. The first relay will energize at the start of the batch and de-energize when the batch is complete. The second relay can be programmed to energize at a fixed time after the start and de-energize at a fixed quantity prior to completion of the batch. This feature enables a slow start-up and slow shutdown of the flow.
Programming and operation are straightforward and simple, requiring minimal operator training.

FEATURES

Automatic Overrun Compensation
Overrun is defined as the difference between the batch quantity set by the operator and the batch total displayed once the flow has stopped. Typically, this overrun could be due to valve closing speed or the speed at which a pump stops pumping after receiving a signal from the batch controller.
The batch controller can be programmed to automatically compensate, based on previous batches, for any overrun at the end of a batch.

Batch Limit
To prevent accidental entry of large batch quantities, a maximum batch limit can be programmed during calibration. The operator is then prevented from entering a batch quantity which exceeds this value.

Signal Time-Out
The batch controller enables the used to program a time interval of up to 99 seconds to detect an absence of signal input. If there is no signal input for a time greater than the signal time-out period, the flow is deemed to have stopped and a flow alarm condition to exist causing both relays to de-energize and an alarm signal to be generated via an opencollector output.

Auto Restart
After reaching the end of batch, the batch controller will wait for a pre-programmed period before automatically resetting and starting the process once again. This mode of operation is selected during the programming procedure.

Count Up/Down
The instrument can be programmed to count up from zero or to count down from the batch quantity.

Remote Start/Stop
Remote pushbutton switches can be connected to the rear terminal strip to start and stop batches.

Pulse Output for Remote Counters
A pulse signal is produced each time the accumulated total increments by one digit.

End of Batch
End of BatchAn end of batch signal is provided via an opencollector transistor output.

Ticket Printing
A number of drivers are included to drive different printer types. Printouts include time and date; a sequential delivery/batch number and the gross, net, and accumulated totals. An optional header for the ticket can also be printed.
Support Printers:
- Generic Computer Printer (Serial)
- Epson CTM290 Slip Printer
- Epson CTM290-2 Slip Printer
- Syntest SP-210 Printer

OPTIONS

Mass Flow Indication
If a fluid has a known relationship between temperature and density, the density can be determined by measuring the temperature. Up to five temperature vs. density points can be programmed and the resulting curve can be used to determine density.

Non-Linearity Correction
Non-Linearity correction enables the instrument to correct for known non-linearities in the flow meter. UP to ten meter factors and corresponding meter frequencies can be programmed. Benefits of nonlinearity correction are extended operating range and increased accuracy.

Volume Correction for Petroleum Products
Volume correction to 60°F (15°C) for petroleum products conforms to International Standards for custody transfer and covers gasoline, jet fuel, diesel, lube oil, crude oil, and LPG. Petroleum tables and equations for both Metric and US standards are built into the unit.

Volume Correction for General Liquids
Volumetric flow rate can be corrected to a programmable base temperature using a programmable thermal coefficient of expansion.

RS232/422/485 Output
Both RS-232 and RS-422/485 are provided for communications with computers or printers. The interface is bidirectional and allows the instruments to be fully controlled from a computer.

APPROVALS

Canadian Standards Association (CSA) CE compliant

ADDITIONAL INFORMATION

Note: Weatherproof and explosion-proof enclosures are available. Consult factory for dimensions.
Dimensions-Inches to the nearest tenth (millimeters to the nearest whole mm), each independently dimensioned from respective engineering drawings.