TeeJet TASC-6100 - Manual (Page 77)

B-5
98-05018
R2
TASC 6100
A
ppndx-B
CE & S TANDARD V ERSION
number of revolutions. The TASC 6100 System
counts the revolutions of the impeller very accurately,
allowing the console to calculate the exact flow rate of
the liquid in the applicator supply line.
Sometimes an applicator is already equipped with a
flowmeter. Existing flowmeters can usually be adapted
to work with the TASC 6100 system, as long as the
flowmeter measures the total liquid flow to the booms.
Check with your MID-TECH
® dealer, or the factory,
regarding the use of a specific flowmeter. Note: Some
flowmeters may require a special adapter cable.
Pressure Sensor
When an TASC system is operating in the pressure
based mode, a pressure sensor, rather than a flow
meter, is used to determine rate of flow. Knowing the
characteristics of the nozzles being used, the console
can determine the flow rate of the liquid by monitor-
ing the pressure in the boom line.
G
RANULAR
A
PPLICATION
When using the TASC console to control a granular
application, a rate sensor is necessary to measure the
flow of material to the distribution system. Granular
rate sensors are usually devices used to measure the
rotation of a conveyor feed shaft. Each rotation of the
shaft is directly related to the discharge of a specific
volume of material.
The most successful rate sensors are usually the slotted
disk type, giving 50 to 360 signals per revolution of
the shaft. Rate sensors which give only a few signals
for each revolution are usually not precise enough for
MID-TECH
® controllers.
4. F
LOW
C
ONTROL
V
ALVE
TASC 6100 systems require a flow control valve to
provide automatic rate control. The console uses this
valve to control the chemical flow rate. To be effective
in controlling flow, this valve must be both fast acting
and precise in its movements.
A B C
Fig. B-5. Pressure Sensor
A B C
Fig. B-4. Flowmeter
Fig. B-6. 100 Pulse
Sensor