micro-trak MT-400 LDI User manual

MT- 400
LDI
TM
LIQUID DE-ICER AND
ANTI-ICING AUTOMATIC
RATE CONTROLLER
REFERENCE
MANUAL
MANUFACTURED IN THE U.S.A BY:

2
MT- 400
LDI
TM
LIQUID DE-ICER AND ANTI-ICING AUTOMATIC RATE CONTROLLER
REFERENCE MANUAL
The MT- 400 LDI is an electronic control system that can help you operate more cost-effectively by providing the information
you need to maintain proper application rates of liquid de-icer and anti-icing chemicals. The MT-400LDI has been designed for
easy installation and operation. However, since each installation will vary depending on your equipment, please take time to
familiarize yourself with this manual and the actual components before beginning. Following the procedures described in this
manual will ensure proper performance and help avoid problems or questions once you are on the road.
This manual is written for the MT- 400 LDI model MT 4-99 -LDI. Please read the manual carefully and follow the instructions as
they apply to your usage.
If you do encounter a problem that cannot be corrected by reviewing this manual, consult your dealer or distributor, or contact
Micro-Trak technical support for assistance.
Toll Free in U.S. or Canada: [phone] or [phone]
www.micro-trak.com •[email protected]
Manufactured in the U.S.A.
1305 Stadium Road
Mankato, MN 56001-5355
© Copyright 1998
Micro-Trak Systems, Inc.
Printed in the U.S.A.

3
Micro-Trak®Warranty
Micro-Trak (herein “Seller”) warrants to the original purchaser (herein “Buyer”) that, if any product or part of the product
(herein “part”) proves to be defective in material or workmanship, upon inspection and examination by Seller, within one (1)
year from the original date-of-purchase, and is returned to Seller with dated proof-of-purchase, transportation prepaid, within
thirty (30) days after such defect is discovered, Seller will, at their option and sole discretion, either repair or replace said part,
except that the warranty for expendable parts, including but not limited to, light bulbs and batteries shall be thirty (30) days
from the original date-of-purchase. Said warranty is valid only when the part has been installed, operated and maintained in
strict accordance with the procedures outlined in the manual. Any damage or failure to said part resulting from abuse, misuse,
neglect, accidental or improper installation or maintenance, unauthorized modification, use with other products or attributable
to acts of God, as determined solely by the Seller, will invalidate the warranty. Said part will not be considered defective if it
substantially fulfills the performance specification. Buyer shall be responsible for all maintenance services, if any, all in strict
accordance with the procedures outlined in the manual. The warranty does not include labor, installation, replacement parts
or repairs, delivery of replacement parts or repairs or time and travel. Said warranty is nontransferable.
The foregoing warranty is exclusive and in lieu of all other warranties of merchantability, fitness for purpose and of any other
type, whether express or implied. The Seller’s liability, whether in contract, in tort, under any warranty, in negligence or
otherwise, shall not exceed the return of the amount of the purchase price paid by the Buyer, and under no circumstance shall
the Seller be liable for special, indirect or consequential damages. Seller neither assumes nor authorizes anyone to assume for it
any other obligation or liability in connection with said part. No action, regardless of form, arising out of the transactions under
this agreement may be brought by the Buyer more than one (1) year after the cause of action has occurred.
Seller agrees to extend the term of the foregoing warranty period should the Buyer return completed warranty registration
information, with dated proof-of-purchase, to the Seller within one (1) year from the original date-of-purchase. All conditions
and limitations of said foregoing warranty, except the term of said foregoing warranty, shall apply. Said term shall be extended
to a total of three (3) years from the original date-of-purchase on display consoles and network communication modules, as
defined by Seller, and said term shall be extended to a total of two (2) years from the original date-of-purchase on all other
parts, except that the warranty for expendable parts, including but not limited to, light bulbs and batteries shall be thirty (30)
days from the original date-of-purchase and except that the warranty for parts manufactured by someone other than the
Seller, including but not limited to, shutoff and control valves, DGPS receivers, memory cards and drives, mapping software,
flowmeters and pressure sensors shall be one (1) year from the original date-of-purchase.
Units under warranty should be sent prepaid, with dated proof-of-purchase, within thirty (30) days of discovering defect, to
the address below:
Mail and UPS:
Micro-Trak Systems, Inc.
ATTN: Service Department
1305 Stadium Road
Mankato, MN 56001-5355
At Micro-Trak Systems, we believe a product that delivers quality and performance at a low cost is what is needed to help
today’s operator and the operator of the future.
It is our goal to provide operators with a line of electronic equipment that will help build and maintain an efficient and
profitable operation.
We thank you for your purchase and hope that we can be of service to you in the future.
Micro-Trak Systems, Inc.
Extended Warranty Option
It’s simple! Just complete the registration for this product ONLINE at www.micro-trak.com
and we’ll extend your warranty for up to three years*, at no additional charge.
Registration information is for internal use only.
* Some limitations apply. See warranty statement for details.

4
Table of Contents
Warranty...................................................................................................................................................................................................... 3
Table of Contents ...................................................................................................................................................................................... 4
Component Parts and Assembly Hardware......................................................................................................................................... 5
Installation.............................................................................................................................................................................................6-11
Mounting the Display Console ...............................................................................................................................................................................6
Attaching the Power and Run/Hold Switch.......................................................................................................................................................6
Electrical Installation ..................................................................................................................................................................................................7
Connecting to Speed Sensor Cable.......................................................................................................................................................................8
MT-400 LDI Wiring Diagram.....................................................................................................................................................................................8
Mounting and Plumbing Flowmeter....................................................................................................................................................................9
Installing Flow Sensor Cable....................................................................................................................................................................................9
Manual Pressure Relief Valve, Range Adjust Valve, Servo, Throttling Valve ....................................................................................... 10
MT-400 LDI System Diagram ................................................................................................................................................................................ 11
Console Functions................................................................................................................................................................................... 12
Calibration .......................................................................................................................................................................................... 13-19
Entering Calibration Values.............................................................................................................................................................................13-14
Exiting Calibration .................................................................................................................................................................................................... 14
Drive Shaft Speed Sensor Calibration................................................................................................................................................................ 15
Entering Flowmeter Calibration Values............................................................................................................................................................ 16
Flow Cal Tag........................................................................................................................................................................................................ 16
Test Speed ................................................................................................................................................................................................................... 16
Fine-tuning Speed/Distance Calibration Value ............................................................................................................................................. 17
Fine-tuning Calibration........................................................................................................................................................................................... 18
Calibration Log Sheet.............................................................................................................................................................................................. 19
Pre-Application System Checkout ....................................................................................................................................................... 20
Operation............................................................................................................................................................................................ 21-23
Switches, Buttons and Display ............................................................................................................................................................................. 21
Rotary Switches.......................................................................................................................................................................................................... 22
Resetting System Counters ................................................................................................................................................................................... 23
Care and Maintenance ........................................................................................................................................................................... 23
Troubleshooting................................................................................................................................................................................ 24-28
General.......................................................................................................................................................................................................................... 24
Checking Individual Components ...................................................................................................................................................................... 25
Checking Console Inputs ....................................................................................................................................................................................... 26
Wiring Diagram.......................................................................................................................................................................................................... 27
Plumbing Troubleshooting Chart....................................................................................................................................................................... 28
Plumbing Guidelines .............................................................................................................................................................................. 29
Appendices......................................................................................................................................................................................... 30-33
Appendix A: Flowmeter Assembly .................................................................................................................................................................... 31
Appendix B: Conversion Chart............................................................................................................................................................................ 32
Appendix C: Replacement Parts List................................................................................................................................................................. 33
Notes ..................................................................................................................................................................................................... 34

5
Component Parts and Assembly Hardware
Before beginning installation, check the carton contents for the following items:
Owner’s Manual
P/N 14757
Console Mount Kit
P/N 13748
MT-400 Console
P/N 14756
14” Nylon cable ties (10)
P/N 12910
120” 10-pin extension cable
P/N 14316
72” Ignition Cable
P/N 14314
MT- 400
LDI
TM
LIQUID DE-ICER AND
ANTI-ICING AUTOMATIC
RATE CONTROLLER
REFERENCE
MANUAL
MANUFACTURED IN THE U.S.A BY:
Boom/ Servo/Flow Harness
P/N 14313
Power Cable
P/N 14315
Kit, Run/Hold Switch
P/N 14361
Kit, Power Switch
P/N 14360
Servo In-Line Adapter Cable
P/N 14463

6
Installation
Mounting the Display Console
Select a mounting location which seems most workable,
and that best fits your needs. It should be convenient to
reach and highly visible to the operator. DO NOT INSTALL
IN A POSITION THAT OBSTRUCTS THE VIEW OF THE ROAD
OR WORK AREA. Whenever possible, avoid locations that
expose the console to direct sunlight, high temperature,
strong chemicals or rain.
Place the mounting bracket in selected location, mark holes,
drill 1/4” (7mm) holes and mount bracket with bolts, lock-
washers and nuts provided. (Use self-tapping screws if not
practical to use bolts.) See Illustration 1A.
Put rubber washers on carriage bolts and put the bolts
through the bracket holes from the inside out. Loosely attach
the mount knobs onto the bolts. Place console over carriage
bolt heads and tighten knobs to secure the console. See Illus-
tration 1B.
Illustration 1A
Illustration 1B
Drill ¼” (7mm)
holes for bolts,
or 3/16“ (5mm)
holes for self-
tapping screws.
Bolts
Lockwashers
and nuts
Rubber washer
Carriage bolts
Mount knob
CONSOLE END VIEW
Console easily adjusts for
side or dashboard mounting.
Mounting the Console Switch Brackets
Remove the mount knobs from sides of the console. Install
the brackets over the carriage bolts and alongside the
console bracket. Install the mount knobs on the carriage
bolts and tighten to secure the console and switch brackets
in place.
Install the switches in the brackets and attach the quick
disconnects on the switch harnesses to the switches (see
wiring diagram). Then install the switch harness connectors
into the mating connectors on the console harness. Typically
the power On/Off switch (Kit 14360) is mounted on the left
and the Run/Hold switch (Kit 14361) is mounted on the
right.
Attaching the Power and Run/Hold Control Switches
Red Wire
Black Wire
O
N
O
F
F
HOLD
RUN
Decal Hex Nut
Hex Nut
Washer w/Notch
Washer 1

7
Connecting to ignition to turn MT-400 system on/off.
Installation (cont)
Electrical Installation
The MT-400 must be connected to a 12-volt DC negative
ground electrical system.
POWER/BATTERY CONNECTION
Locate the power cable lead on the MT-400 harness and
route to the battery. In routing cable to console, avoid areas
where the cable may be subjected to abrasion or excessive
heat. Attach the BLUE wire (ground) to a screw or bolt on the
equipment frame. See Illustration 2. Be sure there is a good
metal-to-metal contact. Connect the ORANGE wire to the
positive battery terminal.
Connect the power to the MT-400 console by plugging the
2-pin W/P tower on the power cable into the 2-pin W/P
shroud of the display console.
The MT-400 system harness includes a provision for either
using a switched (ignition) source or the optional power
switch to turn the system on.
If the switch is used, simply mount the switch bracket as
shown on Page 7, and plug the connector into the mating
cable from the console. If you want to use the ignition switch
to turn the system on and off, use your test light to locate a
terminal or wire connected to your ignition switch which is
“hot” when the ignition is turned on and “dead” when the
ignition is off. Using the 72” 2-wire extension cable, plug the
connector into the mating plug for the console and connect
the black wire to the switched power source (terminal or
wire). DO NOT connect the red wire.
Illustration 2
Illustration 3
Hot
(ORANGE)
10-Amp In-line
Fuse Required
Ground
(Blue)
+12 VDC
(RED)
Carefully route power
cable to a 12VDC source
Attach BLACK wire to
terminal or lead that is
“hot” with ignition on.
4-amp in-line fuse (Not Provided) required for unprotected circuits
Fuseholder
DO NOT connect
the red wire.
Tie back and tape o
Your MT-400 is equipped with an electronic memory which
does not require a constant supply of power to retain daily
totals or calibration values. This type of memory conserves
battery power and will not discharge the vehicle’s battery
when equipment is not in use.

8
sensors. However, the Run/hold sensor has a GRAY tie near
the 3-pin connector, the sensor body is BLACK, and it always
connects to the main harness lead with the GRAY tie. See
MT-400 Wiring Diagram.
The speed sensor cable has a GREEN sensor body and mates
with the main harness cable having a YELLOW cable tie near
the 3-pin M/P connector. Make certain that you install the
correct sensor cable and connect it to the correct connector
on the main harness. The speed sensor and the flow sensor
are identical, but must be connected to the proper harness
connector. The speed sensor always connects to the main
harness lead with the YELLOW tie and flow sensor always
connects to the main harness lead with the GREEN tie. See
MT-400 Wiring Diagram. The optional Run/hold sensor,
also uses the same type of connector as the speed and flow
Installation (cont)
Connecting the Speed Sensor Cable
SENSOR IDENTIFICATION CHART
SENSOR SENSOR BODY COLOR MAIN HARNESS TIE COLOR
Speed Green Yellow
Flow Green Green
Run/Hold Black Gray
MT-400 LDI Wiring Diagram
MT-400 LDI CONSOLE
BOOM 1
BOOM 2
BOOM 3
SERVO +
SERVO -
FLOW SIGNAL
FLOE POWER
FLOW GRD
VES OUT
GND
BRN
RED
ORG
YEL
GRN
BLU
VIO
GRY
WHT
BLK
BRN
RED
ORG
YEL
GRN
BLU
VIO
GRY
WHT
BLK
+VES
SPEED POWER
SPEED SIGNAL
SPEED GND
R/H POWER
R/H SIGNAL
R/H GND
SWITCHED VES
+VES
GROUND
18”
18”
16 GA. BRN
16 GA. RED
16 GA. ORG
20 GA. YEL
20 GA. GRN
20 GA. BLU
20 GA. VIO
20 GA. GRY
20 GA. BRN
20 GA. RED
20 GA. ORG
20 GA. YEL
20 GA. GRN
20 GA. BLU
20 GA. VIO
20 GA. GRY
20 GA. WHT
20 GA. BLK
A
B
C
D
E
F
G
H
J
K
A
B
C
D
E
F
G
H
J
K
10-PIN METRI-PACK SHROUD
10-PIN METRI-PACK TOWER
16 GA. BRN
16 GA. RED
16 GA. ORG
20 GA. YEL
20 GA. GRN
20 GA. BLU
20 GA. VIO
20 GA. GRY
16 GA. WHT
16 GA. BLK
A
B
C
D
E
F
G
H
J
K
A
B
C
D
E
F
G
H
J
K
10-PIN METRI-PACK SHROUD
10-PIN METRI-PACK TOWER
16 GA. BRN
16 GA. RED
16 GA. ORG
20 GA. YEL
20 GA. GRN
20 GA. BLU
20 GA. VIO
20 GA. GRY
16 GA. WHT
16 GA. BLK
10 FT. EXTENSION, PN 14316
BRANCH CABLE, PN 14313
.250 QD FEMALE (7)
BOOM 1
BOOM 2
BOOM 3
12V
GND
120”
GREEN TIE
FLOW
SERVO
A
B
C
A
B
C
3-PIN M/P
TOWER
3-PIN W/P
SHROUD
A
B
C
3-PIN M/P
150 SHROUD
3-PIN M/P
150 TOWER
72”
A
B
C
A
B
C
A
B
C
3-PIN M/P
150 TOWER
3-PIN M/P
150 SHROUD
A
B
2-PIN M/P
150 SHROUD
A
B
A
B
2-PIN M/P
150 SHROUD
2-PIN M/P
150 TOWER
YELLOW TIE
GRAY TIE
18 GA. RED
18 GA. BLK
18 GA. RED
18 GA. WHT
18 GA. BLK
18 GA. RED
18 GA. BLK
180”
P/N 13207
18 GA. RED
18 GA. BLK
A
B
C
3-PIN M/P
150 TOWER
SPEED
P/N 14314
YELLOW TIE
OPTIONAL POWER
SWITCH/BRACKET KIT
P/N 14360
RUN/HOLD
SWITCH/BRACKET KIT
P/N 14361
A
B
2-PIN W/P
SHROUD 2-PIN W/P
TOWER
A
B
16 GA. WHT
16 GA. BLK
14 GA. ORG
14 GA. BLU 180”
POWER CABLE, P/N 14315
FUSE HOLDER, 10A FUSE
5/16 IN RING CONN. (2X)
18 GA. RED +VES
18 GA. BLK IGNITION OR SWITCHED +VES
+VES
GND

9
The Flowmeter must be installed in the main boom line after
any strainers, return lines, or valves. Securely mount flowme-
ter (hardware not supplied) in a vertical position in an area
away from intense vibration. DO NOT install flowmeter closer
than 12” to the servo valve or the boom shut-off valves. The
flow meter is a bidirectional meter (exception: Polmac’s
1 1/2”—3”). Liquid can flow in either direction, but up is
preferred, especially at rates below 5 GPM (19 lpm). Make
connections using appropriate fittings without the use of
reducers, elbows or sharp bends for a minimum of six inches
(15 cm) either side of meter. See Illustration 4. Save plastic
plugs to protect flowmeter during storage. (The flowmeter
may need periodic cleaning, so it should be easy to remove).
Installing Flow Sensor Cable
With the flowmeter in place, install the flow sensor cable.
The flow sensor cable has a GREEN sensor body and mates
with the main harness cable, having a GREEN cable tie near
the 3-pin M/P connector. Screw sensor all the way into hole
of flowmeter. Tighten 3/8” jam nut to lock sensor in place.
Uncoil flow sensor cable and carefully route it to meet the
main harness flow connector marked with GREEN tie. Align
connectors and press firmly together until locking tab clicks
into place. Secure cable with ties provided. See Illustration to
the right and the MT-400 Wiring Diagram.
NOTE: Sensors with GREEN bodies can be used for either
SPEED or FLOW but not for RUN/HOLD.
Connect flow sensor cable to green-tie console cable.
Illustration 4
Installation (cont)
Mounting and Plumbing Flowmeter
Illustration 5
Sprayer Line*
Locknut
Sensor
(green body)
Flowmeter
* NOT SUPPLIED
“L” Bracket*
Hose Clamps*
¾” NPT Male Fitting*
Hose Clamps*
Hose Clamps*
A B C
C B A
Flow Sensor
Cable Connector
Main Harness
Flow Connector
Green Tie

Tee “C”
Range
Adjust Valve
Tee “A”
Tee “C”
Tee “A”
Pressure
Relief Valve
10
If you have a positive displacement pump or a centrifugal
pump capable of generating excessive pressure, you must
install a pressure relief valve and adjust it to a safe maxi-
mum pressure. If a positive displacement pump is operated
without a pressure relief valve, damage may result to pump
or other plumbing component. See Illustration 6.
Range Adjust Valve
With oversized pumps, it may be necessary to install a range
adjust valve. The range adjust valve will reduce the pump’s
output to the rest of the system. Adjustment of this valve is
covered in the Pre-application System Checkout, page 20.
See Illustration 7.
Servo, Throttling Valves
The servo valve installs in an unrestricted return line to the
inlet of the pump or directly into the tank. DO NOT install the
servo valve closer than 12” to the flowmeter. The servo valve
has a flow direction decal on it. Make certain that the actual
flow direction matches the decal on the servo valve. DO NOT
install the servo valve in the agitation line. Slow response
time and marginal operation may result. The return line
should tee from the main line just after the throttling valve.
See Illustration 8. The throttling valve is used to limit the
output (set maximum output) of the pump to the flowmeter
and servo valve. The throttling valve is adjusted to put the
servo valve in its optimal operating range. Please refer to Pre-
application System Checkout for proper valve adjustment
procedure.
The servo valve connects directly to the main harness 3-pin
W/P cable lead. If more length is required, use a 3-pin W/P
extension cable of the appropriate length. If using a Braglia
or other 12-volt control valve.
NOTE: The servo valve may be installed in the main spray
line. For in-line installations, you will need to cut the servo
cable and reverse the wires, or use optional adapter cable
P/N 14463 (See Illustration 9). Connect the WHITE wire to the
BLACK wire and vice versa. Failure to reverse the wires will
result in the servo valve operating backwards.
For positive
displacement pump
Installation (cont)
Manual Pressure Relief Valve
Illustration 9
Illustration 8
Illustration 7
Illustration 6
For oversized pumps
Return to pump
inlet or unrestricted
return to tank
Servo Valve Cable
From Pump Throttling Valve
To Flowmeter
Servo Valve
Servo
Flowmeter
From Pump

11
Installation (cont)
MT-40 LDI System Overview
GND
+12VDC
YELLOW TIE
GRAY TIE
GREEN TIE
GRAY TIE
YELLOW TIE
SPEED
GND (BLACK)
12V (WHITE)
BOOM 3 (ORNAGE)
BOOM 2 (RED)
BOOM 1(BROWN)

12
MT-400 Console Functions
The MT-400 features a large, easy-to-read liquid crystal display, lighted Brite-Knob™ rotary dial and
lighted panel for night use.
TOTAL LANE MILES: Keeps a running count of the total
miles of application. May be reset.
MPH: Displays speed in miles per hour.
LANE MILES PER HOUR: Displays lane miles
per hour of application.
GALLONS PER LANE MILE: Displays
gallons of liquid applied per lane mile.
SUB LANE MILES: Counts lane miles of application. Can
be used to measure individual jobs or to perform periodic
checks. May be reset.
FEET: Displays distance in feet traveled.
GALLONS PER MINUTE: Displays gallons
applied at a per minute rate.
TOTAL GALLONS: Keeps a running
count of the total gallons applied. May
be reset.
Calibration Positions Calibration Positions
LANE SELECT: Used in
calibration mode to select an
active lane for calibrating lane
width.
TEST SPEED: Used in calibration
mode to simulate ground speed for
pre-application check-out.
ADJUST RATE:Used in calibration mode to enter an amount
of change for on-the-go adjustments to the target rate.
TARGET RATE: Used in calibration mode to enter the target
application rate.
LANE WIDTH: Used in
calibration mode to enter the
working width of lanes.
SPEED CAL: Used in calibration mode to
calibrate the speed.
MIN FLOW: Used in calibration mode to enter the
minimum flow rate of the spray lane.
FLOW CAL: Used in calibration mode to enter the
calibration value assigned to your flowmeter (see
flowmeter tag).
WARNING LIGHT: Indicates over or under
application of 10% of the Target Rate. Also lit
when in CAL.
IMPORTANT: To reset the Feet, Total Gallons or Lane
Miles counters, turn the rotary dial to the appropriate
item, turn all booms off and depress the “RESET” key
for approximately three seconds.
CAL
AUTO
MANRESET
KEY FUNCTIONS:
AUTO/MAN: Key which
changes operation from
automatic to manual control
mode.
CAL: This key is not used.
PROGRAM KEYS: Used to
calibrate the system.
RESET: Clears the counters.

13
LANE
WIDTH
LANE
SELECT
TEST
SPEED
ADJUST
RATE
TARGET
RATE
SPEED
CAL
MIN
FLOW
FLOW
CAL
MPH Feet
Gallons
per Minute
Total Lane Miles
Gallons per
Lane Mile Total Gallons
Sub Lane Miles
Lane Miles
per Hour
CAL
AUTO
MANRESET
MANAUTO
CALHOLD
v 1 2 3 4
TM LDI
TARGET
RATE
Gallons per
Lane Mile
ADJUST
RATE
Lane Miles
per Hour
TEST
SPEED MPH
LANE
SELECT Total Lane Miles
Calibration
Entering Calibration Values
TEST SPEED:Enter the value to be used for simulating
speed for performing Pre-application System checkout.
The console will use this
speed for simulating
spraying operations. The
test speed value is only
used while in calibration
mode. Once CAL is exited, the Test Speed
value is reset to zero. DO NOT ENTER A TEST SPEED UNTIL
ALL OTHER VALUES ARE PROPERLY ADJUSTED. Please refer
to Pre-application System Checkout for details.
ADJUST RATE: Enter the value for the desired amount
of change in gallons per lane mile to be used for making
on-the-go rate adjustments when operating
in AUTO. For example, if a value of “1.0” is
entered, you will be able
to increase or decrease
your application rate in
one-gallon increments
during operation in AUTO. To disable this feature, simple
enter “.0” for a value.
TARGET RATE: Enter the value for the desired application
rate in gallons per lane mile. This is the
application rate that the control console will
lock onto when operating in AUTO.
To enter or change any of the system’s calibration values,
you must enter calibration mode. Turn all lane switches off
or put the Run/Hold switch in HOLD position. Press and hold
the CAL button for 3 seconds, until the red light comes on
and CAL appears on the display. To exit calibration mode,
press and hold CAL button until the CAL legend disappears
from the display.
Once in calibration mode, you may change any or all of
the values, in any order, with the exception of test speed,
which must be LAST, To select a calibration position, simply
turn the rotary selector to the desired position. Calibration
positions are identified by the WHITE labeling on each side of
the rotary selector. All values are entered and adjusted using
the “+” and “-” buttons on the front panel.
LANE SELECT: This position is used to select the lane
section to be calibrated. With the rotary switch in this
position, the display will show the active lane section number.
Use the “+” or “-” buttons
to select the lane section
to be calibrated. Once a
lane has been selected,
turn the rotary selector to width to enter the
effective working width for that lane. (Left
Switch = lane one, Primary Switch = lane two
and Right Switch = lane three).
Repeat this procedure for each lane section, setting any
unused lane section widths to “0”.
LANE WIDTH: Enter the effective working width, in inches,
for lane one. (shown on display). Repeat this procedure for
each lane section, entering a value of “0” for all unused lane
sections. If you are only
applying in the Primary
(center) lane, set your
working width for boom
2 to match lane width and set booms 1 and 3
(left and right) to “0”.
NOTE: A Lane Mile is defined as 12 feet
wide by 1 mile long.
If the width is set to any value other than 144 inches (12 feet),
the console will calculate area covered as a proportion of the
standard lane mile. Example: If the width of a lane is entered
as 108 inches (9 feet) and a mile is traveled, the console will
record 0.8 lane miles. In this case, if the target application
rate is set at 100 gallons per lane mile, the actual amount
applied will be 75 gallons after one mile is traveled.
LANE
WIDTH
Sub Lane Miles

14
SPEED
CAL
Feet
MIN
FLOW
Gallons
per Minute
FL
OW
CAL
Total Gallons
LANE
WIDTH
LANE
SELECT
TEST
SPEED
ADJUST
RATE
TARGET
RATE
SPEED
CAL
MIN
FLOW
FLOW
CAL
MPH Feet
Gallons
per Minute
Total Lane Miles
Gallons per
Lane Mile Total Gallons
Sub Lane Miles
Lane Miles
per Hour
CAL
AUTO
MANRESET
MANAUTO
CALHOLD
v 1 2 3 4
TM LDI
CALHOLD
SPEED CAL: This position is used to calibrate the speed
sensor for accurate speed and distance measurement.
When this position is
selected, the display will
alternately show, every
three seconds, the wheel
circumference value and
the distance value. The wheel circumference
value is the number shown along with “CAL”
on the display. See Illustration to the right. The distance
value is the number shown when “CAL” is not shown on the
display. To select either one of the values for calibration,
simply press the “+” or “-” button when the value you want
to select is being displayed. Once selected, the display will
stop alternating between the two figures for one minute to
allow you to make the appropriate adjustment. After one
minute following your last adjustment to the value, or after
you move the rotary selector away from the SPEED CAL
position and back again, the display will alternate between
the two values again.
MIN FLOW: The purpose of this calibration parameter is to
prevent the system from applying below the recommended
minimum rate for the nozzles. Enter the minimum flow rate
in gallons per minute based on the nozzles
being used, for the entire lane of the sprayer.
DO NOT enter the actual
flow rate of your spray
application. For example:
if the minimum flow rate
for the nozzle you are using
is .22 GPM at their minimum recommended pressure and
your lane has 20 nozzles, enter 4.4 as the MIN FLOW value
(.22 x 20 = 4.4).
The system WILL NOT apply at a rate lower than this value
when spraying in AUTO. This value should be checked/
changed for each different nozzle that you use.
APPLICATION NOTE: In certain situations, your ground
speed may be slow enough to result in over-application. In
other words, based on ground speed, the actual flow rate
has dropped to the calibrated minimum flow rate.
FLOW CAL: This position is used to calibrate the flowmeter
for accurate liquid measurement. When this position is
selected, the display will alternately show, every three
seconds, the flowmeter calibration value and the total flow
value. The flowmeter calibration value is the number shown
along with “CAL” on the display. The total flow value is the
number shown when “CAL” is NOT displayed.
The flowmeter calibration value is typically
selectedwhenenteringthecalibrationnumber
from the tag attached to the flowmeter.
Enter the calibration value
stamped on the attached
tag. The total flow value
is typically selected when
you are fine-tuning the flowmeter calibration (refer to Fine-
Tuning Flowmeter Calibration). To select either one of the
values for calibration, simply press the “=” or “-” button
when the value you want to select is being displayed. Once
selected, the display will stop alternating between the two
figures for one minute to allow you to make the appropriate
adjustment. After one minute following your last adjustment
to the value, or after you move the rotary selector away from
the FLOW CAL position, the display will alternate between
the two values again.
Every flowmeter is calibrated with water at the factory. If
your spray solution has a specific gravity or viscosity that
is different than water, flowmeter calibration should be
done for the specific solution (please refer to Fine-Tuning
Flowmeter Calibration).
Calibration (cont)
Entering Calibration Values (cont)
Exiting Calibration
Upon completion of the calibration process, exit calibration
by pressing and holding the CAL button for 3 seconds. The
CAL legend on display will disappear. Basic calibration is now
complete. Before beginning application, confirm that the
system is set up to do the job that you want it to. Please refer
to Pre-application System Checkout to confirm calibration
settings, nozzle selection and overall system performance.

15
LANE
WIDTH
LANE
SELECT
TEST
SPEED
ADJUST
RATE
TARGET
RATE
SPEED
CAL
MIN
FLOW
FLOW
CAL
MPH Feet
Gallons
per Minute
Total Lane Miles
Gallons per
Lane Mile Total Gallons
Sub Lane Miles
Lane Miles
per Hour
CAL
AUTO
MAN RESET
MANAUTO
CALHOLD
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TM LDI
CALHOLD
Calibration (cont)
Drive Shaft Speed Sensor Calibration
Because the difference is wheel-to-drive shaft ratios, it is
difficult to determine a calibration value for installation
on a drive shaft by measuring a wheel. You must start
with an estimated calibration value and then fine-tune the
calibration.
1. Turn the master lane control switch OFF.
2. See Shop Instruction Sheet to enter the calibration mode.
Turn the dial to the “SPEED CAL” position. The display
will alternate between the SPEED CAL and distance
values at about three-second intervals. When the word
“CAL” appears, the number displayed is the SPEED CAL
value. See Illustration to the right. When the word “CAL”
DOES NOT appear, that is the distance value.
3. When the display shows wheel circumference (“CAL” is
displayed), use the “+” or “-” key to adjust the displayed
value to any number between 10 and 15 (255 mm to 280
mm). Exit “CAL” by pressing and holding the “CAL” key
for three seconds.
For fine tuning the SPEED CAL value, turn to page 17.
NOTE: If you let go of the “+” and “-” keys while you are
adjusting the SPEED CAL value, the console will wait to
make sure you are finished. After 64 seconds, the display
will start alternating between the SPEED CAL and distance
values again. Make sure you know which value you are
adjusting.
Red warning light will
be lit when in “CAL” Press “+” or “-” to
adjust displayed value

16
LANE
WIDTH
LANE
SELECT
TEST
SPEED
ADJUST
RATE
TARGET
RATE
SPEED
CAL
MIN
FLOW
FLOW
CAL
MPH Feet
Gallons
per Minute
Total Lane Miles
Gallons per
Lane Mile Total Gallons
Sub Lane Miles
Lane Miles
per Hour
CAL
AUTO
MANRESET
MANAUTO
CALHOLD
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TM LDI
CALHOLD
Illustration 10
SERIAL NO.
FLOW CAL
MODEL NO. FM 750 GF N
MFG BY
MICRO-TRAK
SYSTEMS, INC.
MANKATO, MN U SA
FLOW CAL
SERIAL NO.
168.0168.0168.0168.0168.0
50 GFN
Y
AK
INC.
U.S.A.
Calibration (cont)
Entering Flowmeter Calibration Value
1. Turn the master lane control (Run/Hold) switch OFF.
2. Enter the calibration mode. Turn the dial to the “FLOW
CAL” position. The display will alternate between the
FLOW CAL and total flow values at about three-second
intervals. When the word “CAL” appears, the number
displayed is the FLOW CAL value. See Illustration to the
right. When the word “CAL” DOES NOT appear, that is
the distance value.
3. When the display shows flowmeter calibration (“CAL” is
displayed), use the “+” or “-” key to adjust the displayed
value to any number between 10 and 15 (255 mm to 280
mm). Exit “CAL” mode (see Shop Instruction Sheet.)
For fine tuning the FLOW CAL value, turn to page 18.
NOTE: If you let go of the “+” and “-” keys while you are
adjusting the FLOW CAL value, the console will wait to
make sure you are finished. After 64 seconds, the display
will start alternating between the SPEED CAL and distance
values again. Make sure you know which value you are
adjusting.
Red warning light will
be lit when in “CAL” Press “+” or “-” to
adjust displayed value
Flow Cal Tag
Your Micro-Trak flowmeter has been tested at the factory and
assigned a “FLOW CAL” value to make it operate properly
with the MT-400 console. This number is stamped on the
metal tag attached to the flowmeter. See Illustration 10. This
is a starting point only. The value must be fine tuned. See
Fine-Tuning Flowmeter Calibration.
Test Speed
Test speed is a built-in ground speed simulator that is
used in performing pre-application checks. When a typical
operating speed is entered, the MT-400 will respond as
if you were actually driving that speed. It allows you
to simulate your spraying application with plain water,
while remaining stationary, to make certain that all of the
equipment is operating properly and that your sprayer can
actually perform the intended operation.
Test speed is cancelled by exiting CAL. Test speed will not
accumulate Distance or Area measurements. Please refer to
Pre-application System Checkout.

17
LANE
WIDTH
LANE
SELECT
TEST
SPEED
ADJUST
RATE
TARGET
RATE
SPEED
CAL
MIN
FLOW
FLOW
CAL
MPH Feet
Gallons
per Minute
Total Lane Miles
Gallons per
Lane Mile Total Gallons
Sub Lane Miles
Lane Miles
per Hour
CAL
AUTO
MANRESET
TM LDI
Calibration (cont)
Fine-Tuning Speed/Distance Calibration Value
In order to achieve accurate measurements, each step in this
fine tuning procedure should be performed as precisely as
possible.
PREPARATIONS
• Once the system is fully installed and calibrated, select
a straight tract of ground that is similar to your actual
conditions, and as level as possible.
• Measure a distance of at least 1000 feet. Clearly mark
the beginning and end points with flags or something
highly visible to the operator.
PROCEDURE
1. Pick a location on the vehicle to use as a marker for
starting and stopping the distance counting function
(door handle, mirror, step, etc.).
2. Drive to the starting point. Make sure the master lane
control switch if OFF. With the console turned ON, turn
the rotary dial to the “DISTANCE” position. Be sure the
display shows 0. If not, reset the distance counter by
pressing and holding “RESET” until the display returns to
0 (approximately three seconds).
3. Drive the pre-measured course. The console display
numbers will increase, adding to the distance total as
you drive. When the marker on the vehicle reaches the
ending flag, stop the vehicle (do not back up).
4. With the rotary dial still at DISTANCE (SPEED CAL), enter
CAL mode. Once the console is in “CAL”, the display
will alternate between the circumference value and
the distance measured at about three second intervals.
When the word “CAL” appears, the number displayed
is the SPEED CAL value. See Illustration 11. When the
word “CAL” does not appear, that is the distance value.
5. When the display shows distance (“CAL” is not displayed),
verify whether the number displayed is the exact distance
you drove (within “+” or “-” 1-2%). If not, while the
display shows distance, press the “+” or “-” key to adjust
the figure to match the distance you actually drove. If
the display reads too high, use the “-” key to lower the
displayed value. If the display reads too low, use the “+”
key to raise the displayed value.
6. When the number shown on the display matches (as
closely as possible) the actual distance driven, you have
arrived at the correct calibration value. If you cannot
adjust the displayed distance to exactly match the actual
distance driven, adjust the figures as close as possible to
the actual distance. Exit “CAL”.
NOTE: If you let go of the “+” and “-” keys while you are
adjusting the distance value, the console will wait to make
sure you are finished. After 64 seconds, the display will
start alternating between the distance and SPEED CAL
values again. Make sure you know which value you are
adjusting.
The speed sensor is now calibrated. To verify proper
calibration, repeat the procedure a second time. Write down
the new SPEED CAL number and keep it in a safe place. If
the calibration values are ever accidentally changed, you can
simply re-enter this number.
ALTERNATE FINE TUNING PROCEDURE
1. Drive vehicle at a steady speed.
2. Note the vehicle speedometer reading and the MPH
displayed on the console.
3. Adjust the SPEED CAL number per the formula below:
Illustration 11
( )
Vehicle Speedometer
Console MPH XOld SPEED CAL
=New SPEED CAL

18
LANE
WIDTH
LANE
SELECT
TEST
SPEED
ADJUST
RATE
TARGET
RATE
SPEED
CAL
MIN
FLOW
FLOW
CAL
MPH Feet
Gallons
per Minute
Total Lane Miles
Gallons per
Lane Mile Total Gallons
Sub Lane Miles
Lane Miles
per Hour
CAL
AUTO
MANRESET
TM LDI
Calibration (cont)
Fine-Tuning Flowmeter Calibration
This procedure is used to verify and fine-tune the flowmeter
calibration. Every flowmeter is calibrated with water and
stamped with a calibration value. Enter that value as a
starting point and use this procedure to fine-tune that value
for your specific installation and spraying application. See
page 16 for Entering Flowmeter Calibration Value.
PROCEDURE
1. Put enough water in the sprayer tank to perform this test
(preferably 100 gallons or more). The larger the volume
of water used, the more accurate the calibration will be.
2. Start sprayer pump and turn the master lane control
switch ON. Run enough water to purge all air from lines.
Turn the lane control master switch OFF but leave pump
running.
3. Turn console rotary selector to the TOTAL FLOW position.
Press and hold the RESET button until the display reads 0
(about three seconds).
4. Turn the master lane control (Run/Hold) switch ON and
run a known amount* of water, preferably 100 gallons
or more.
5. Turn the master lane control switch OFF. Compare the
console’s TOTAL FLOW reading with the known amount
on the water run. See Illustration 12. If the two amounts
are within one or two percent, no fine tuning is required
and you may exit calibration. If the two amounts are
more than two or three percent different, continue with
the next step.
6. With the console still in the TOTAL FLOW position, enter
calibration. The display will alternate (at about three
second intervals) between the flowmeter calibration
value and the TOTAL FLOW value. (To tell which is
which, watch for “CAL” on the display. It will be present
with the flowmeter calibration value, but not with the
TOTAL FLOW value.)
7. When the TOTAL FLOW value is displayed, use the “+”
or “-” button to adjust the value to match the amount
of water run.
NOTE: Once a value has been selected for
adjustment, the display will stop alternating
between the two values. This allows you to “fine
tune” the value selected. After 64 seconds of
neither “+” or “-” being pressed, alternations will
resume. Turning the rotary selector away from
and then back to the desired position will also
cause alternations to resume.
8. Once the display begins alternating, you will notice
that the flowmeter calibration value has changed. If
the TOTAL FLOW value is correct, write down the new
flowmeter calibration value. This is your “fine tuned”
calibration value. Keep it for future reference.
9. Exit Calibration.
The most accurate method of measuring the
volume of water run is to place a container under
EVERY nozzle and add together the amount from
each nozzle. This assures that 100% of the water
is collected and that all the nozzles are spraying
equally. It is important to perform this procedure at
a flow rate similar to that which will be used on the
road. It is also possible to disconnect the main lane
line and run it to a large measuring container but
a valve must be installed and properly adjusted to
simulate actual road conditions.
Illustration 12
*

19
Serial No. ____________
Min Flow:
Adjust Rate:
Target Rate:
Width Cal (Boom Width): left center right
Speed Cal:
Mode Sel:
Test Speed:
Comments:
Calibration (cont)
Calibration Log Sheet

20
Pre-Application System Checkout
Before beginning actual spraying, perform the following
“pre-application” procedure to ensure that your valve
settings, nozzle selection and desired speed range will allow
the MT-400 to provide the required application control. This
procedure should be repeated for each new nozzle selection
and/or application rate. By performing all of the steps listed
below, you set up your system to allow the MT-400 to
perform at optimum level. Fill your sprayer tank with clean
water. DO NOT use chemicals until the entire system is
completely checked out and operating properly.
NOTE: Most nozzles will maintain a good pattern over a
maximum speed range of two to one. (For example, if your
maximum speed is 12, your minimum speed shouldn’t go
below 6.)
Pre-application System Checkout is a procedure performed
while the console is in the CAL mode. The red warning light
will be lit during the procedure and “CAL” on the display will
be flashing.
1. Start vehicle and pump, bring the engine up to normal
operating RPM.
2. Enter MAXIMUM application TEST SPEED into console.
Turn all booms OFF and enter calibration mode.
CAL will appear on display and red light will be on.
Turn rotary switch to TEST SPEED position. Use “+” or
“-” button to enter maximum application speed. Do
not exit calibration mode. CAL will flash on the display
indicating TEST SPEED mode.
3. Select manual “MAN” control mode and turn all lane
control switches ON.
4. Turn rotary switch to APP. RATE position and hold “+”
button for approximately 30 seconds to completely
open the servo valve (control valve). (Maximum flow
output to lane).
CAN’T GET THERE?
If you can’t get to the desired application rate, you may
need different nozzles, pump, or you may need to make
modifications to your plumbing configuration. Please refer
to Troubleshooting Plumbing.
• Now is a good time to confirm that GPM, MPH, WIDTH
and PSI all coincide with the nozzle manufacturer’s
charts. PSI may be slightly higher than indicated by the
charts due to pressure drop across the solenoid valve,
nozzle diaphragm check valves, nozzle screen, etc.
5. Turn all lane control switches OFF and enter MINIMUM
application TEST SPEED into console. Turn rotary switch
to TEST SPEED position. Use the “+” or “-” button to enter
minimum application speed. Do not exit calibration
mode. (Remember, the minimum application speed is
not normally less than half of the maximum application
speed).
6. Turn all active lane control switches ON. Make certain
system is in manual mode, turn rotary switch to the APP.
RATE position and hold “-” button for approximately 30
seconds to completely close the servo valve (control
valve). (Minimum flow output to lane). The display should
now read less than the desired application rate.
• It is not normally a problem if the application rate goes
all the way to zero when holding the “-” button for 30
seconds, as long as it goes back up when the “+” button
is held.
CAN’T GET THERE?
If holding the “-” button does not get the application rate
to go below the desired application rate, please refer to
Troubleshooting Plumbing.
7. Enter the TARGET application TEST SPEED into console.
Turn booms OFF. Turn rotary switch to TEST SPEED
position. Use the “+” or “-” button to enter target
application speed. Do not exit calibration mode.
8. Select automatic “AUTO” control mode, turn booms ON
and turn rotary switch to APP. RATE position. The console
should take control and lock-on to your calibrated target
application rate.
• If you calibrated your ADJUST RATE to zero (0), disregard
steps 9 and 10.
9. Press the “+” button and release. The display will
momentarily show the new target rate (target rate +
adjust rate) and then lock on to that rate.
10. Press the “-” button and release. The display will
momentarily show the new target rate (target rate -
adjust rate) and then lock on to that rate.
• If the application rate was correctly displayed during
manual “MAN” control mode, but registered too high in
automatic “AUTO” control mode, the calibration value
for MIN FLOW is set too high.
At this point, the Pre-application System Checkout is
complete. TEST SPEED will automatically cancel when you
exit the CAL mode or when power to the console is turned
OFF.