MEGA Corp. MTT-OPS-1 - Manual (Page 50)

6-1
MTT-OPS-1
13 Nov 2013
SECTION 6
Employment
Contents
DESCRIPTION
This section provides descriptions, guidance, and
techniques used when employing the MEGA spray
system. These best practices will provide operators
with several different choices that will result in
maximum system performance in most applications
with ever changing conditions.
GPS GROUND SPEED SENSING
The resident software provides a consistent layer of
water on haul roads regardless of ground speed. The
software minimizes water usage and prevents
puddling at stops and haul ramps. Nominal settings
produce about 3 liters per cubic meter regardless of
ground speed. This maximizes water usage and
extends the duration of a given load of water.
Adjustments are provided to increase or decrease the
layer of water dispersed, as well as setting maximum
water flow at a desired ground speed. All automatic
system protection features are active regardless of
auto or manual modes.
Here are several examples of initial system setup and
adjustments:
EXAMPLE 1
Setup:
1. RATE - Set at midpoint (50%)
2. SPEED - Set at mid-point (approximately
15 MPH/24 KPH)
3. AUTO – ON
4. Spray heads - Select all 4 spray heads
5. Vehicle speed – Less than 21 KPH/14 MPH
Observed Operation:
1. 2 Outer spray heads on with a timed cycle,
shortened ON cycle durations
2. 2 Center spray heads OFF (reduced volume)
EXAMPLE 2
Setup:
1. RATE - Set at midpoint (50%)
2. SPEED - Set at mid-point (approximately
24 KPH/15 MPH)
3. AUTO – ON
4. Spray heads - Select all 4 spray heads
5. Vehicle speed – Greater than 27 KPH/16 MPH
Observed Operation:
1. All 4 requested spray heads ON, NO timed
cycle
EXAMPLE 3
Setup:
1. RATE - Set LESS than midpoint (≤50%)
2. SPEED - Set at mid-point (approximately
24 KPH/15 MPH)
3. AUTO – ON
4. Spray heads - Select all 4 spray heads
5. Vehicle speed – Less than 21 KPH/14 MPH
Observed Operation:
1. 2 Outer spray heads on with a timed cycle,
shortened ON cycle durations
2. 2 Center spray heads OFF (reduced volume)
EXAMPLE 4
Setup:
1. RATE - Set at GREATER than midpoint (≥50%)
2. SPEED - Set at mid-point (approximately
24 KPH/15 MPH)
3. AUTO – ON
4. Spray heads - Select all 4 spray heads
5. Vehicle speed – Less than 21 KPH/14 MPH
Observed Operation:
1. 2 Outer spray heads on with a timed cycle,
increased ON cycle durations
2. 2 Center spray heads OFF (reduced volume)
Description .......................................................................6-1 GPS Ground Speed Sensing ....................................... 6-1