Detailed Product Description

Salient Features

- Self-diagnostic

- Meter error curve linearization

- Large 6-digit backlit LCD display.

- Tamper-proof and sealed calibration facility and approved by Weights & Measures, Department of Legal Metrology, Mumbai, India.

- Accepts all types of interlocks for fail-safe operation.

- Can be used with any make of flow Meters and pulse generators.

- RS-232 / RS-485 connectivity

- Flameproof enclosure for hazardous area application.

- Weatherproof to IP-65.

Self-Diaganostic Features

During the delivery, Microcompt constantly monitors the operating conditions for and logs an alarm if any of the conditions goes beyond threshold limits.  These conditions include:-

- Meter over / under speeding

- Product temperature beyond threshold limits.

- Absence of product after valve opening

- Pulse Tranmistter failure

- Electrical Power failure

- Interlock failure like vehicle earthing, tank low alarm etc.

In case of electrical power failure, Micrcompt retains following information in its EEPROM memory:-

- Current Volume

- Accumulated totaliser

- Operational flags

PLC / Computer

Microcompt can be connected to PLC or a computer via a MODBUS link.  This allows remote control of the loading operation, presetting of quantities to be delivered, recovery of meter data, access control to the loading position etc...

Printers

Different types of printers can be connected via a serial link.  Microcompt can be interfaced to an industry standard Slip Printer and can offer the possiblities of printing out all information in the form of a loading ticket.

Specifications

Power Requirement

Voltage                     : 12 VDC / 24 VDC / 110 VAC / 230 VAC

Current                      : 250 mAmp

Data Entry                 : 4 nos. multi-function push button keys

Display                      : 1" size, 6-digit, 7-segment, backlit LCD display.

Memory                     : 64 KB EEPROM - a sophisticated firmware package to govern the system operation.

Battery                       : Not required as all the data is stored in EEPROM memory.

INPUTS

Pulse Transmitter

Type                           :  Rectangular wave

Voltage                       : +12 V DC, 300 ohm typical impedance.

Frequency                   : 0 to 2000 Hz

No. of Channels           : Two

Duty Cycle                  : 10/90 or 90/10 pulse setting.

Analogue

Type                           : PT-100 three wire RTD

Temperature                : -20^oC to +75^oC

Accuracy                    : + 1^oC

Resolution                   : 0.1^oC

Quantity                      : One

Ditigal

Voltage                       : 12 VDC

Quantity                      : Two

Serial Communication

Port-1                         : RS-232 for serial printer

Port-2                         : RS-485 optically isolated for host communication

Protocol                      : MODBUS RTU

Baud Rate                   : Programmable to 2400 / 4800 / 9600 / 19200 BPS.