micro-trak SprayMate II - NH3 Calibration Factors

62
I
n NH3 mode, the console calculates rates and totals in lbs. (kg) of
nitrogen (N) or anhydrous ammonia (NH3) as shown below.
Calibration Factors for NH3:
To enter standard calibration mode, turn the shutoff valve off
and press the CAL button for 1 second. Some of the calibration
factors are the same as a liquid system, but there are some
important differences:
lbs. (kg) NH3 (scale tickets are in
NH3 for easy comparison)
lbs. (kg) NH3/Minute
lbs. (kg) NH3
remaining in tank
lbs. (kg) N per acre /(hectare)
provides application rate of
a
ctual nitrogen
WIDTH
C
AL
FLOW
CAL
MIN
FLOW
ADJUST
RATE
TARGET
RATE
SPEED
CAL
I
NLINE
BYPASS
TEST
SPEED
VOLUME /
MINUTE
DISTANCE
A
REA /
HOUR
VOLUME
(1) (2) (3)
R
ATE
S
PEED
A
REA
(
1) (2) (3)
TANK
CAL
AUTO
MAN
RESET
_
____
_____
A
UTO
1
S pray M ate II
ADJUST R
A
TE:
En
t
er the desir
ed amoun
t of change in
pounds (kg) of actual "N" applied per acre
(hectare) for on-the-go adjustments to the
Target Rate when operating in
AUTOmatic mode. Enter 0
to disable this feature.
MINIMUM FL
O
W
:
En
t
er a minimum flo
w r
a
t
e of 10.0 lbs
.
p
er
minute (5.0 kg per minute)
of NH3.
T
his will pr
e
vent
the sy
st
em fr
om applying
below the recommended
minimum r
a
t
e f
or the M
icr
o-Trak
NH3 flowmeter.
FLOW CAL: This position is used to calibrate the flowmeter
for accurate liquid mea-
surement. The flowmeter
has been calibrated at the
factory to read in pounds of
actual "N".
ADJUST
RATE
TANK
MIN
FLOW
VOLUME /
MINUTE
FLOW
CAL
VOLUME
(1) (2) (3)
TARGET RATE: Use the "+" and "-" buttons
to enter the desired application rate in
pounds (kg) of actual "N" applied per acre
(hectare).
TARGET
RATE
RATE
Your Micro-Trak NH3 flowmeter has been tested at the factory
and assigned a “FLOW CAL”value (pulses/lb N) to make it operate
pr
op
er
ly with the S
pr
a
yMate II console. This number is stamped
on the metal tag attached to the flowmeter.
See below. This is a
star
ting p
oin
t only
.
T
he value must be fine tuned. See Fine-
Tuning Flowmeter Calibration for NH3 on page 59. When
entering the flow cal value, take note of decimal point
plac
emen
t.
Appendix G: SprayMate II - NH3 Specific
SprayMate II Console Functions - in NH3 Mode cont.