ME697
INTERFACE CARD
(Eagle version)
FLOWMETER (MES20) TO EAGLE COMPUTER
PULSE COUNTER INTERFACE CARD
with manual batch facility and pulse fail safety.
FEATURES:
•
6x 8 digit LCD counters, displayed in millilitres.
•
Supports up to six MES20 flowmeters.
•
Optional variable pulse dividers.
•
110 - 240vac pulse outputs (Triac switching)
with LED indication.
•
Provides important cross-reference batch figure.
•
Pulse Fail and Batch Limit safety override
with LED warning indicators and alarm.
•
6 channel override batching facility.
•
Easy plug-in connectors.
•
Compact housing.
INTRODUCTION
The ME697 counter divider interface card was designed to act as a support product in interfacing upto six ManuFlo
admixture 20mm pulse output flow meters ( MES20, KGG20, MEK20 ) with Eagle and other USA industrial computer
systems, requiring low frequency pulse rates and 110-240vac pulse inputs. This new design incorporates new high
resolution missing pulse and maximum batch limit overrides, as well as a six-channel manual batching facility.
FUNCTION
The computer system provides an AC output start and hold drive signal (black Opto22) to ME697 start input. The
ME697 output drive supplies power to external contactor coils driving pumps and/or solenoids. ME697 supplies
+12VDC to flowmeters which in turn send back pulses which are counted by individual channel LCD displays in
millilitres. The pulses are then sent to the computer inputs (yellow Opto22). When the computer system has OPTO22,
110 - 240 vac input optos, incoming pulses are limited to 14 Hz maximum. Due to high resolution pulsing of
flowmeters, the pulse rates must be divided. The onboard selectable dip switches are then set to the desired pulse
division rate (see Fig.1).
The divided output pulses are indicated by the pulse LEDs. The pulses are stepped up (via Motorola MOC3041 Triacs)
to 110 - 240 vac switching pulses. These pulses arereceived by the computer input card (through Yellow OPTO22).
When computer has completed batch cycle, a 110 or 240 vac reset signal is supplied to the ME697 master reset relay,
thus reseting all counters.
SAFETY OPERATION
If, at any time during batch cycle, any flowmeter stops pulsing (e.g. due to flow obstruction, failure, blockage, pump
failure etc), or the preset upper safety limit is reached, the inbuilt Pulse Fail feature will activate, shutting down flow
regardless of computer's status operation. If Pulse Fail (P.F.) is activated, warning LED(s) will illuminate, indicating the
channel at fault. Also, an audible alarm will sound. If upper batch limits are set, and if they are reached, the same
safety features will activate. If channel(s) pulse failed, remember the quantity displayed. Reset unit to resume batching.
Order Code for ME697 for Jonel Computer: ME697-1A-2A-3A-4A-5A (see Page 7)
Manu
Flo
®
™
Flow Measurement Products
Page 1
MANU ELECTRONICS
PTY LTD
Summary of Contents for ManuFlo ME697
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