micro-trak MT-NH3 II Reference Manual

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MT-NH3

NH3 AUTOMATIC RATE CONTROL

NH3

SPECIFIC

REFERENCE

MANUAL

MT-NH3

NH3 AUTOMATIC RATE CONTROL

REFERENCE MANUAL

The MT-NH3TM II is an electronic monitoring and controlling system that can help you achieve maximum yields and operate more cost-eectively by providing the information you need to maintain proper application rates of Anhydrous Ammonia. The MT-NH3TM II 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 in the eld.

This manual is written for the MT-NH3TM II for NH3 application, which may be used for either English or Metric measurement. 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 a Micro-Trak technician for assistance.

Toll Free in U.S. or Canada: (800) 328-9613 or (507) 257-3600

Fax: 507-257-3001

trakmail@micro-trak.com

www.micro-trak.com

P.O. Box 99

111 LeRay Avenue

Eagle Lake, MN 56024

Micro-Trak Systems, Inc.

Printed in the USA

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 modication, 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 fullls the performance specication. 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 non-transferable.

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 dened 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, shuto and control valves, DGPS receivers, memory cards and drives, mapping software, owmeters 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 30 days of discovering defect, to the address below:

MAIL and UPS:

Micro-Trak Systems, Inc.

ATTN: Service Department

PO Box 99 • 111 East LeRay Avenue

Eagle Lake, MN 56024

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.

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 compete in the world market.

It is our goal to provide operators with a line of electronic equipment that will help build and maintain an ecient and protable operation that can be passed on to future generations.

We thank you for your purchase and hope that we can be of service to you in the future.

Micro-Trak Systems, Inc.

Table of Contents

Basic Overview of Typical Installation .............................................................. 5

MT-NH3™ II System Layout ................................................................................... 6

Component Parts and Assembly Hardware ...................................................7

Installation ................................................................................................................. 9

Mounting the Display Console ...............................................................................................9

Power Connection .....................................................................................................................10

Harness Connections ................................................................................................................10

Magnetic Speed Sensor Installation ...................................................................................11

Speed Sensor Options ..............................................................................................................12

Liquier Kit Installation ............................................................................................................13

Liquifier™ - Vapor Line Installation ......................................................................................14

MT-NH3TM II Console Functions .........................................................................15

Calibration ...............................................................................................................16

“Special” Calibration ............................................................................................20

Console Operation ................................................................................................22

Console Switches and Buttons ..............................................................................................22

Field Operation ...........................................................................................................................23

Resetting System Counters ....................................................................................................24

Clearing Counters ......................................................................................................................25

Troubleshooting ....................................................................................................26

Messages/Warnings ..................................................................................................................26

General ..........................................................................................................................................27

Checking Individual Components .......................................................................................28

Checking Individual Inputs ....................................................................................................29

MT-NH3TM II - NH3 Specic Wiring Di a gram .................................................30

Appendices ..............................................................................................................31

Appendix A - Speed Sensor Mounting Installation ................................................32

Appendix B - Fine Tuning Speed/Distance Calibration Val ue .............................33

Appendix C - Fine Tuning Flowmeter Calibration ....................................................34

Appendix D - Flowmeter Assembly (FM-750 N) .......................................................35

Appendix E - Flowmeter Assembly (FM-1500 N) .....................................................36

Appendix F - Radar Adapter Cables ..............................................................................37

Appendix G - Replacement Parts List ...........................................................................38

Basic Overview of Typical Installation

GPS Speed Sensor

(Other options available)

Battery

Rear Speed Connection

MT-NH3 II

Console

Main Harness

Hitch Connection

Liquier™ Series Heat Exchanger

NH3

Nurse

Tank

MT-NH3™ II System Layout

Component Parts and Assembly Hardware

(2)

NH3

SPECIFIC

REFERENCE

MANUAL

MT-NH3

NH3 AUTOMATIC RATE CONTROL

Before beginning installation, check the carton contents for the following items:

MT-NH3TM II Console

P/N 14956

Power Switch Kit

P/N 21779

Run/Hold Switch Kit

P/N 21963

Reference Manual

P/N 14955

10’ 10-pin M/P ext. cable

P/N 13221

Power & Switch Harness

P/N 18767

NH3 Harness

P/N 13273

15’ Battery Cable with Fuse Holder &

Ring Terminals P/N 14315

15’ 10-pin M/P ext. cable

P/N 13222

Vacuum & Console Mount Kits

P/Ns 17858 & 13181

14” Nylon cable ties (10)

P/N 12910

Component Parts and Assembly Hardware (cont.)

Liquifier™ Series Heat Exchangers available from Micro-Trak

Liquifier™ Ultra Low Rate Kit

P/N 01815

Liquier™ Junior Kit

P/N 01816

2800 lbs. NH3/hr.

11 GPM(@100 PSI)

6000 lbs. NH3/hr.

23 GPM(@100 PSI)

Liquifier™ Kit

P/N 01817

Liquifier™ MAX Kit

P/N 01818

12000 lbs. NH3/hr. 40 GPM(@100 PSI)

21000 lbs. NH3/hr. 70 GPM(@100 PSI)

(2)

Installation

Mounting the Display Console

Select a mounting location which seems most workable, and 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.

See Illustration 1 below for installation detail.

1. Place the console bracket in the selected location, mark holes, drill ¼” (7mm) holes to use bolts or 3/16” (5mm) for hex screws. Mount bracket with included fasteners (both bolts and hex screws are included in kit).

2. Place rubber washers on carriage bolts and insert the bolts through the bracket holes from the inside out. Slide console over carriage b olt heads.

3. Slide the switch brackets over the carriage bolts and alongside the console bracket. The power On/Off switch (Kit 21779) mounts on the left side and the Run/ Hold switch (Kit 21963) mounts on the right. Install the mount knobs on the carriage bolts and tighten to secure the console and switch brackets in place.

4. Join the switch connectors to the labeled mating connectors on the power and switch harness (P/N

18767).

Suction Cup Mount

1. To install the “U” Bracket on top of the suction cup, match the center hole to the corresponding stud on the suction cup, and fasten with the provided lock nut.

2. Make sure the plate is positioned so that the suction push button is free to operate. See

Illustration 2.

3. After selecting the best possible installation location, prepare the area for the suction cup mount. The area should be clean and completely dry. Place the suction cup firmly against the mounting surface and press the suction push button repeatedly until the red line is no longer visible.

4. Mount the console into the console bracket - refer to standard mount instructions at left and illustration 1.

NOTE: The suction cup mount will adhere to a clean, nonporous, at surface - glass or at metal work very well.

Illustration 2

Mount Knob

Rubber Washer

Switch Bracket

Mark and drill ¼” (7mm) holes for bolts, or 3/16“ (5mm) holes for hex screws. (Both fastener types are included)

Illustration 1

Carriage Bolts

Rubber Washer

Mount Knob

Switch Bracket

Installation (cont.)

Power Connection

The MT-NH3TM II must be connected to a 12-volt DC electrical system. Power is connected directly to the battery. The MTNH3TM II has an ON/OFF switch on the mounting bracket to turn the power o when the system is not being used.

Locate the power cable (P/N 14315), connect it to the power connection on the Power & Switch Harness (P/N 18767), and route it to the battery. Connect the Orange wire (hot) to the positive battery terminal. Attach the Blue wire (ground) to a screw or bolt on the equipment frame. See Illustration 3. Be sure there is a good metal-to-metal contact. You may wish to substitute other types of connectors. In routing cable to battery, avoid areas where the cable may be subjected to abrasion or excessive heat.

Your MT-NH3TM II is equipped with a non-volatile electronic memory which does not require a constant supply of power to retain daily totals or calibration values. The advantage with this type of memory is that it conserves battery power and will not discharge the vehicle’s battery when equipment is not in use.

Harness Connections

The MT-NH3TM II main wiring harness is made specically for use on anhydrous ammonia applicators. The harness combines the wires for the control servo valve, owmeter, shut-o valve and remote access speed connector into a single 10-pin connector. Plug the console 10-pin connector into the 10-pin connector on the plumbing unit harness. Optional extension cables are available. Remote run/hold is not available on the NH3 systems.

Illustration 3

Hot

(Orange)

Ground

(Blue)

NOTE: For negative ground systems ONLY

WARNING: Follow accepted safety precautions when working on electrical systems. Always disconnect battery ground cable rst and re-connect last.

CONNECT HARNESS TO LIQUIFIER™:

1. Join the FLOW connection to the flowmeter.

2. Join the CONTROL connection to the Servo Valve.

3. Join the NH3 SHUTOFF connection to the On/Off valve.

4. Connect the harness to the MT-NH3 console using the 10-pin extension cables (P/N 13221 & 13222).

NH3 Kit Main Harness

P/N 13273

Remote Run/Hold IS NOT

Available on the NH3 Systems

FLOW

SPEED

CONTROL SERVO

NH3 SHUTOFF VALVE

Installation (cont.)

Magnetic Speed Sensor Installation

Please Note: If you have purchased an Astro GPS speed sensor or a Vansco radar or other speed sensing device, disregard the section on magnetic speed sensors and install the optional speed sensor as described in the instruction packed with the unit.

Locations where the magnetic sensor may be installed:

1. Non-driven wheel on tractor, vehicle or implement. This is less susceptible to errors resulting from wheel slip.

2. Tractor, vehicle or planter drive shaft. This type of mounting is recommended for trucks, four-wheel drive tractors or other equipment that has poor or no access to a non-driven wheel.

Hall-eect Speed/Flow Sensor

Cable - P/N 13096

14” Nylon Cable ties (10)

P/N 12910

Speed Sensor

Mounting

Bracket

P/N 10013

15’ 3-pin M/P 150 Extension

Cable - P/N 13207

Hardware

Bag

P/N 13251

Magnets (6)

P/N 12069

(2 in Hardware

Bag)

Magnets

Please read the following information about magnet spacing and polarity.

The number of magnets that must be used depends on the size of your tire and where you mount the sensor. On tractor or implement wheels the general rule of thumb is one magnet for each wheel bolt (minimum of two, and always an even number). For drive shafts or small wheels (ATV’s), two magnets are usually adequate.

Some installations may require that more than two magnets be installed. To determine the number of magnets required, measure the distance traveled of one revolution of the sensor equipped wheel in inches (centimeters).

English or Turf (inches)

Wheel Circumference 40 80 120 160 200

Number of Magnets 2 4 6 8 10

Metric (cm)

Wheel Circumference 100 200 300 400 500

Number of Magnets 2 4 6 8 10

NOTE: Magnets may be attached mechanically or adhered with epoxy or other high quality adhesive. When using adhesive, thoroughly clean the area of dirt and oil.

See the following tables to nd the minimum number of magnets required (always an even number) The magnets provided by Micro-Trak are marked with a punched dashed line on the SOUTH pole side of the magnet.

See Illustration 4.

Always use an even number of magnets, and always alternate the polarities of the magnets as you go around the wheel hub or drive shaft.

To install, mount the rst magnet with the SOUTH pole side (dashed line) facing toward the hub or shaft. Mount the second magnet with the NORTH pole side facing toward the hub or shaft. See Illustration 5.

For proper operation, the magnets must be evenly spaced around the wheel or drive shaft. The magnets must be at least 1" apart. See Illustration 6.

Illustration 4

Illustration 6

1” Minimum

Illustration 5

North

South

North

Test magnet

South

should alternately

attract and repel.

North

Installation (cont.)

Magnetic Speed Sensor Installation

(cont.)

Attaching the Magnetic Speed Sensor

The magnets are attached to a wheel hub or drive shaft and the speed sensor should be mounted directly over the magnet. When the wheel or drive shaft begins turning, a speed impulse is sent to the MT-NH3TM II console every time a magnet passes by the tip of the speed sensor. For the speed sensor to operate properly, the spacing between the magnets and the tip of the sensor must always remain constant. Before permanently mounting any parts, be sure that the location you have selected will meet the requirements shown in Illustration 7.

NOTE: Observe magnet polarities (see previous section).

See Appendix A for additional magnetic speed sensor mounting options.

Connecting the Speed Sensor Cable

The magnetic speed sensor cable has a GREEN sensor body and mates with the main harness cable labelled SPEED. Make certain that you install the correct sensor cable and connect it to the correct connector on the main harness. The speed sensor connector is identical the ow sensor connector and could accidentally be connected to the ow sensor input of the main harness cable. The speed sensor always connects to the main harness lead labelled SPEED and ow sensor always connects to the main harness lead labelled FLOW.

Sensor assembly must not

Illustration 7

be mounted more than

45° from perpendicular

Bracket must

be rigidly

mounted

45° max

3/8” nuts

Sensor

(Green body)

¼” to ½” air gap

Magnet

INSTALLATION NOTE: The main harness provides two connection points for the speed sensor. For speed sensor installations in the cab or near the control console, it may be more practical to use the local access connector on the control console pigtail exiting the rear of the console. Using this connection point will disable the connection point on the end of the main harness. For speed sensor installations on implements, it may be more practical to use the speed connector on the end of the main harness. When using this connection point, make certain that the local access connector for speed/distance is mated together.

Speed Sensor Options

In addition to the Hall-eect magnetic speed sensor, the MT-NH3TM II may be interfaced with a variety of other speed sensing equipment. Several options are listed below.

Astro GPS Speed Sensor

The Astro is an easy-to-install economical alternate to radar speed sensors. The Astro is available with either a 1 HZ or 5 HZ GPS receiver. The sensor converts GPS signals to a pulsed speed signal, providing an accurate speed input in all eld conditions.

Vansco™ Radar Speed Sensor

The Vansco radar speed sensor uses a microwave (radar) signal to deliver a reliable, accurate speed signal for electronic equipment. It features state-of-the-art electronic design/ manufacturing, rugged aluminum housing and complete testing and certication.

Radar Interface

The MT-NH3TM II may also be interfaced with most popular radar ground speed sensors. An adapter cable is required for proper interface.

Astro GPS

Speed Sensor

GPS Speed Sensor Interface

The MT-NH3TM II may also be used with most other GPS speed sensors that output a pulsed signal, such as SkyTrak or Dickey-John GPS speed sensors. An adapter cable may be required.

SEE APPENDIX F FOR LIST OF ADAPTER CABLES FOR RADAR.

Contact a Micro-Trak sales representative for details on any of these products, or call Micro-Trak Systems, Inc. at 1-800-328-9613.

STRAINER

Installation (cont.)

Liquier Kit Installation

LIQUIFIER KIT INSTALLATION - See Illustration 8

Remove any existing metering valves. If the old metering valve has a built-in manifold, it is recommended to install a separate new manifold for the Liquifier™ kit. Another option, although not recommended, is to use the existing manifold, making certain the old metering valve is in the maximum open position to allow for minimal restriction of flow through the plumbing. There should not be any positive shut-off valves installed in the plumbing between the Liquifier kit shut-off valve and the knives. Install the plumbing panel on the tool bar frame using the carriage bolts and flange lock nuts through the top and bottom brackets of the system. Trim any excess length off the bolts if required. Attach the hose from the breakaway coupler to the strainer inlet. Check for proper hose length for operation of the disconnect mechanism of the breakaway coupler. Connect the manifold hose to the servo valve outlet. Check for proper hose length to avoid kinking at the hinge points.

SERVO VALVE

ON/OFF VALVE

FLOWMETER

Illustration 8

TUBING

HOSE BARB w/ORIFICE

MOUNT BRACKET

INSTALLATION NOTE: It is recommended to use an NH3 compatible thread sealing compound on all pipe thread fittings.

Detail of Strainer Assembly

BODY

VAPOR OUTLETS

HEAT EXCHANGER

STRAINER

SCREEN

O-RING

MAGNETIC

CORE

CAP

Vapor Outlet

Installation (cont.)

Liquifier™ - Vapor Line Installation

Locate the 1/2” EVA vapor hose supplied with the kit. Starting on one half of the tool bar, connect the 1/2” hose to the outside steel vapor tube. Route the hose up the shank and along the tool bar frame to the inside steel vapor tube. Allow enough extra hose to avoid kinking at hinge points. Cut the hose to length and attach to the inside steel vapor tube. Install a 1/2” x 3/4” x 1/2” tee fitting approximately halfway along this hose between the outside and inside steel vapor tubes. See Illustration 9 below. Repeat the same procedure for the steel vapor tubes on the other half of the tool bar. Secure all hoses with properly sized hose clamps. Secure the hoses to the tool bar frame with cable ties.

Locate the 3/4” EVA hose supplied with the kit. Connect to one of the 1/2” x 3/4” x 1/2” tee fittings and route along the tool bar frame to other 1/2” x 3/4” x 1/2” tee fitting. Cut to length and install on the tee fitting. Allow enough extra hose to avoid kinking at hinge points. Now install a 3/4” x 3/4” x 3/4” tee fitting approximately halfway along this hose (center of the tool bar) between the other two tee fittings. Using an appropriate length 3/4” hose, connect this tee fitting to the vapor tube connection on the Liquifer™ plumbing panel. Secure all hoses with properly sized hose clamps. Secure the hoses to the tool bar frame with cable ties.

FOR ALL NH3 KITS

Weld the steel vapor tubes to the back of your liquid tubes. All electronic equipment, including the console and radar speed sensor, MUST BE DISCONNECTED BEFORE WELDING ON EQUIPMENT. The four steel vapor tubes should be evenly spaced across the applicator (two per side) and installed so that only their wear resistant surface contacts the soil. Mount the tubes just high enough to avoid plugging. See Illustration 10 below.

llustration 10

VAPOR TUBES

GROUND LEVE

WEAR RESISTANT

SURFACE

½” Vapor Hose

½” X ¾” X ½” Tee

Steel Vapor Tubes

½” Vapor Hose

¾” Vapor Hose

Liquier™ Heat Exchanger

llustration 9

½” Vapor Hose

¾” Vapor Hose

½” Vapor Hose

½” X ¾” X ½” Tee

Steel Vapor Tubes

MT-NH3TM II Console Functions

The MT-NH3TM II features a large, easy-to-read liquid crystal display, and lighted panel for night use.

TOTAL NH3 (1) (2) (3): Displays total lbs. (kg) of NH3 ap-

plied. (NOTE: TOTAL NH3 and AREA counters work in pairs; if TOTAL NH3 counter 1 is reset, it also resets AREA counter 1.)

NH3 PER MINUTE: Displays total lbs.

(kg) of NH3 applied per minute. TANK (NH3): Displays lbs. (kg) of NH3 remaining.

TANK (NH3): Displays lbs.

(kg) of NH3 remaining.

(hectares) worked. May be reset. (NOTE: TOTAL NH3 and AREA counters work in pairs, if AREA counter 1 is reset, it also resets TOTAL NH3 counter 1.)

DISTANCE: Displays distance traveled

in feet (meters). May be reset.

AREA/HOUR: Displays cur-

rent work rate in acres per hour (hectares per hour).

SPEED: Displays ground

AREA (1) (2) (3): Keeps a running count of the total acres

RATE ACTUAL “N”: Displays

pounds (kg) of actual “N” applied per acre (hectare).

speed in miles per hour (kilometers per hour).

Calibration Positions Calibration Positions

FLOW CAL: Used in calibration

mode to enter the calibration value assigned to your owmeter (see owmeter tag).

MIN FLOW: Used in calibration

mode to enter the minimum ow rate (lbs./kgs.) per minute.

WIDTH CAL: Used in calibra-

tion mode to enter the working width of your tool bar.

SPEED CAL: Used in calibration

mode to enter the speed calibration number in inches (cm) per pulse.

ADJUST RATE: Used in calibration

mode to enter an amount of change for on-the-go adjustment to the target rate of lbs./acre (kg/hec) "N".

TARGET RATE: Used in calibration mode to enter the target

application rate of pounds (kg) of actual “N” applied per acre (hectare).

Key Functions:

AUTO

MAN

AUTO/MAN: Key which

changes operation from automatic to manual control mode.

CAL: This key is used to

enter and exit the calibration mode.

CAL

RESET

PROGRAM KEYS: Used

to calibrate the system.

• RESET clears the counters when not in CAL and held for three seconds.

• The “+” key increases the gure displayed in the readout, while “-” decreases it when in CAL.

WARNING LIGHT: Indicates over or

under application of 10% from the Target Rate. Also lit when in CAL.

NOTE: To learn more about each of the calibration func-

tions listed on this page, refer to the “Entering Calibration Values (pages 17-18) and “Console Operation” (pages 22-23).

Care and Maintenance of your MT-NH3TM II

Console

• Store the console in a cool dry location if it will not be used for an extended period of time, such as during the o-season.

• As with any electronic equipment, use care in cleaning so that water or other liquids do not enter the case.

• Filter Cleaning: remove strainer cap and clean lter

and magnet at regular intervals.

Precautions

• When using N-Serve and/or ACA, it is recommended that the last tank used for the season be free of these additives to ush the plumbing clean.

Calibration

English or Metric?

The MT-NH3TM II is capable of displaying information in American English or standard Metric measurement. The MT-NH3TM II is shipped from the factory programmed for English. Note that the following procedures will also load factory default calibration values. To simply change units without loading defaults, see the "Special Calibration" section.

ENGLISH:

To activate the English mode, turn power OFF and place the rotary switch at "TOTAL NH3". Hold down both the "CAL"and "-" keys and turn power ON. The console will display "Load".

Release the two keys. See Illustration 11. To "lock-in" English mode you must enter and exit calibration. Press and hold the CAL key until "CAL" icon turns on. The console is now in calibration. Exit CAL by pressing and holding the CAL key until the "CAL" icon disappears from the display. English units are now locked in.

METRIC

To activate the Metric mode, turn power OFF and place the rotary switch at "AREA". Hold down both the "CAL" and "-" keys and turn power ON. The console will display "LOAd".

Release the two keys. See Illustration 11. To "lock-in" Metric mode you must enter and exit calibration. Press and hold the CAL key until "CAL" icon lights on the display. The console is now in calibration. Exit CAL by pressing and holding the CAL key until "CAL" icon disappears from the display (approxi-

mately 3 seconds). Metric units are now locked in.

NOTE: In metric, the width will have a decimal point, in English there is no decimal point. Also, changing from English to Metric mode may change or alter any previously entered calibration values. After switching measurement modes, conrm that all calibration values are correct.

IN ALL CALIBRATION OPERATIONS

To enter or change any of the system’s calibration values, you must enter calibration mode. To enter calibration mode, STOP the vehicle, place the Run/Hold Switch into Hold and press and hold the CAL button until “CAL” lights up (approxi-

mately one second). See Illustration 12.

(NOTE: Calibration may be entered while moving, but it is not recommended to attempt calibration while the vehicle is moving.) The console will remain in calibration mode,

with the RED warning light illuminated until you exit calibration or turn power OFF.

FLOW

CAL

MIN

FLOW

ADJUST

RATE

TARGET

RATE

FLOW

CAL

MIN

FLOW

ADJUST

RATE

TARGET

RATE

Press to enter or exit

Calibration Mode.

Red warning light will

be lit when in CAL.

RESET

™

AREA (1) (2) (3)

DISTANCE

TOTAL NH3 (1) (2) (3)

NH3 PER MINUTE

TANK (NH3)

RATE ACTUAL “N”

AUTO

MAN

MT-NH3 II

CAL

PRESS both and turn

power on to load Units

™

DISTANCE

RESET

TOTAL NH3 (1) (2) (3)

NH3 PER MINUTE

TANK (NH3)

RATE ACTUAL “N”

AUTO

MAN

MT-NH3 II

CAL

Press to increase or

decrease values.

AREA/ HOUR

SPEED

CAL

AREA (1) (2) (3)

AREA/ HOUR

SPEED

WIDTH

CAL

SPEED

CAL

WIDTH

SPEED

Run/Hold Switch in HOLD position

CAL

Illustration 11

Illustration 12

Run/Hold Switch HOLD position

Once in calibration mode, you may change any one, all or none of the values, in any order. To select a calibration position, simply turn the rotary selector to the desired position. Calibration positions are identied in white type on each side of the rotary selector. All values are entered and adjusted using the “+” and “-” buttons on the front panel. To save new values, you must exit CAL mode (by pressing the CAL button until the CAL icon turns o ) prior to turning power o.

Calibration (cont.)

FM750 N Flowmeter

P/N 10899

Micro-Trak liquid cal - 152

Pulses per gallon - 76.0

Pulses per 10 gallons - 760

S/N 000000000

Entering Calibration Values

FLOW CAL: This position is used to calibrate the flowmeter for

accurate NH3 measurement. When this

FLOW

position is selected, the display will show the owmeter calibration value and the "CAL" icon will be displayed. The owmeter calibration value is the number shown along with “CAL" and “HOLD” on the display. Use the"+" and "-" buttons to enter the number stamped on the tag attached to the owmeter. Every NH3 type owmeter is calibrated for “N” at the factory. However, the value should be ne-tuned to ensure best accuracy in the system. Please

refer to Fine-Tuning Flowmeter Calibration in Appendix C.

FM750 N Flowmeter P/N 10899

Micro-Trak liquid cal - 152 Micro-Trak NH3 cal - 34.9 Pulses per gallon - 76.0

Pulses per 10 gallons - 760

MIN FLOW: The purpose of this calibration parameter is to

prevent the system from applying below the recommended minimum rate for the owmeter. Enter a value of 10.0 lbs./ min. (5.0kg/min.) for this calibration parameter. 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 ow rate has dropped to the calibrated minimum ow rate.

MIN

FLOW

CAL

TOTAL NH3 (1) (2) (3)

S/N 000000000

NH3 PER MINUTE

TARGET RATE: Enter the value for the desired target appli-

cation rate in pounds of actual “N” per acre (kg per hectare). This is the application rate that the control console will lock onto when operating in AUTO.

TARGET

RATE

RATE ACTUAL “N”

CAUTION: Nurse tank must NOT be connected during this process below.

WIDTH CAL: Use the "+" and "-" buttons to enter the eec-

tive working width, in inches (meters) for the tool bar; See

“Working Width” on

AREA (1) (2) (3)

WIDTH

CAL

the next page.

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 show the SPEED CAL value. NOTE: The SPEED CAL value is in centimeters when

using metric units.

DISTANCE

SPEED

To ne-tune speed calibration for optimal

CAL

accuracy, see Fine Tuning Speed Calibration, Appendix B.

ADJUST RATE: Enter the value for the desired amount of

change in pounds of actual “N” per acre (kg per hectare) to be used for making on-the-go rate adjustments when operating in AUTO. For example, if a value “5.0”is entered, you will be able to increase and decrease your application rate in ve-pound (kg) increments during operation in AUTO. To disable this feature, simply enter “.0” for a value.

ADJUST

RATE

TANK (NH3)

Calibration (cont.)

Determining Wheel Circumference

For the console to calculate the correct number of acres (hectares), both the circumference of the sensor-equipped wheel and the implement width must be entered. Determine the circumference of the sensor-mounted wheel to the nearest hundredth of an inch (tenth of a centimeter) with the following method:

METHOD

Mark tire with a piece of chalk and measure distance traveled on the ground for one complete revolution. For accuracy, measure the wheel revolution several times and take the average. Divide that value by the number of magnets installed on the wheel hub to get your starting SPEED CAL calibration value. See Illustration 13.

Working Width

In order to accurately measure the number of pounds (kg) of “N” applied per acre (hectare) it is important to determine the correct “working” width. The “working” width is the width of ground being aected by any operation. This should be measured to the nearest inch (or cm).

Illustration 13

To determine Speed Calibration number, measure the

distance of one complete wheel revolution and divide by

the number of magnets installed.

Working Width = Number of Knives X Spacing

Example:

Your rig has 13 knives spaced 30” apart. 10 knives X 30” = 390”

Calibration (cont.)

Drive Shaft Speed Sensor Calibration

NOTE: If you have mounted the magnetic speed sensor on a wheel, skip this step and go on to Fine Tuning Speed/ Distance Calibration Values. If you are using a radar or GPS speed sensor, see next section.

Because of the dierence in wheel-to-drive shaft ratios, it is dicult 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 ne-tune the calibration.

When using optional radar or GPS speed sensors, enter SPEED CAL numbers per the following table. See Appendix B for ne-tuning.

1. Turn the master switch to the CONSOLE ON/VALVE OFF (center) position.

2. Press and hold the “CAL” key for one second to enter the calibration mode. Turn the dial to “SPEED CAL” position.

3. Use the “+” or “-” key to adjust the displayed value to any number between 10 and 15 (25.5 cm to 38.0 cm). When the number shown on the display matches the desired value, you have arrived at the estimated calibration value. Exit “CAL” by pressing and holding the “CAL” key for three seconds.

NOTE: For ne-tuning the SPEED CAL value, turn to page 33.

Radar or GPS Speed Sensor Calibration

Radars English Cal # in. Metric Cal # in. Hz/MPH

Vansco .150 .38 58.90

Raven .148 .38 59.80

Magnavox .154 .39 57.40

Dickey-john

(NOTE: Dickey-john radars may be factory calibrated for any of these four settings).

GPS Speed

Astro II & 5 .189 .48 46.56

SkyTrak 1.50 .38 58.94

Dickey-john .210 .53 42.00

John Deere (In-cab speed signal) .197 .50 44.70

.149 .38 58.94

.199 .50 44.21

.319 .81 27.64

.518 1.32 17.034

Factory-Loaded Calibration Values

Calibration Factor Measurements Aected Default Values

FLOW CALibration Flow/Application Rates, Totals 36.0 pulses/lb. N 36.0 pulses/lb. N

MINimum FLOW Lowest allowable ow rate 10 lbs. NH3/minute 5 kg. NH3/minute

ADJUST RATE Amount of increase or decrease per +/- press 10 lbs. N/Acre 10 kg. N/Hectare

TARGET RATE Application Rate 100 lbs. N/Acre 110 kg. N/hectare

WIDTH CAL Area, Application Rate 420 inches 10.00 meters

SPEED CAL Distance Measurement 1.750 inches 4.44 centimeters

English Metric

“Special” Calibration

Entering “Special” Calibration Values

The “Special” Calibration mode is used to set up system parameters that rarely need to be changed or adjusted. To enter Special Cal, turn the console power OFF, press and hold both the AUTO/MAN button and CAL button while turning console ON. The console will display SPEC for 2 seconds to show that the console is in the Special Calibration mode. Release the AUTO/MAN and CAL buttons. The CAL icon and Warn LED will turn on. The desired Special Calibration parameter(s) can then be accessed with the rotary switch per the illustration below. To exit Special Calibration, press and hold the CAL button for 2 seconds. The console will store any changes and revert to normal operation. NOTE: you must exit Special Calibration to save

changes.

Special

RESET

™

AREA (1) (2) (3)

DISTANCE

AREA/ HOUR

SPEED

WIDTH

CAL

SPEED

CAL

Units

Valve Voltage

Not Used

Valve Response Speed

Calibration

Fill Tank Size

Tank Set Point

Auto Shut-O On/O

Auto Delay Time

FLOW

CAL

MIN

FLOW

ADJUST

RATE

TARGET

RATE

TOTAL NH3 (1) (2) (3)

NH3 PER MINUTE

TANK (NH3)

RATE ACTUAL “N”

AUTO

MAN

MT-NH3 II

CAL

The following table describes the special cal parameters and shows the factory settings. More detailed descriptions follow the table.

Parameter Description Factory Setting

Units System of units: EnG (English) / mEt (Metric) /TurF (Turf) EnG (English)

Valve Voltage Servo Valve Drive Voltage (8/12) 12

Valve Response Speed Set Valve Response (-4 to 3) -1

Fill Tank Size Size (volume) of Full Tank (O or 1-65,535) O

Tank (Norm) Set Point Sets alarm point if using Tank Function (O or 1-65,535) O

Auto Shuto Runs servo toward minimum when in hold (On/O) O

Auto Time Delay Delay servo response when going from Hold to Run (O to 4 sec.) 1

“Special” Calibration (cont)

Entering “Special” Calibration Values

FILL TANK SIZE: If using the Tank feature, this setting can

be used to enter the volume of the tank. Use the “+” and “-” buttons to choose OFF or any value from 1-65,535. Then when the nurse

FLOW

CAL

TOTAL NH3 (1) (2) (3)

tank is changed, the tank counter can be reset to full by simply turning the rotary switch to the TANK position and pressing the “+” button. The Tank Size will be in lbs. or kg. Anhydrous Ammonia (NH3).

TANK ALARM SET POINT: Use the “+” and “-” buttons

to set the level where the Warning LED starts flashing and the word “FILL” flashes on the display. Range is OFF or 1-65,535. When the tank value drops below the set point, the alarms will

MIN

FLOW

NH3 PER MINUTE

notify the user that the tank level is low.

AUTO SHUTOFF ON/OFF: When Auto Shutoff is enabled

(ON) the servo will run toward minimum flow for 4 seconds any time the system is put in HOLD or all booms are turned off, or if in AUTO mode and speed goes to zero. This feature is normally used only in Dry Application

ADJUST

RATE

TANK (NH3)

systems.

AUTO DELAY TIME: Typically used when using relatively

slow ball valves for boom shut-off, this feature delays adjustment of the servo valve until the boom valves are open. Use “+” and “-” buttons to set from zero (OFF) to 4 seconds.

VALVE VOLTAGE: Selects the operating voltage for the

servo valve. Factory setting is 12 volts. Use the “+” and

“-” buttons to toggle

DISTANCE

SPEED

between 8 and 12 on

CAL

display. NOTE: if using an older Micro-Trak

servo valve, set to 8 volts.

AREA/HOUR: Not used in ”Special Cal”.

AREA/ HOUR

VALVE RESPONSE SPEED: Allows adjustment of

response to “tune” the system for use with very fast or

slow valves. For example, if using a ball valve

that takes several seconds to open or close in manual mode, and the system responds sluggishly, use the “+” button to adjust the

valve response number to 1, 2 or

SPEED

the valve response speed. If using a relatively fast valve (1-3 seconds open-to-close), the system may become unstable with higher valve response speed numbers entered.

To exit Special Calibration, press and hold the CAL button for 2 seconds. The console will store any changes and revert to normal operation.

NOTE: you must exit Special Calibration to save changes.

3. The range of adjustment is -2 to 3, factory setting is zero. NOTE:

Exercise caution when increasing

RATE

RATE ACTUAL “N”

TARGET

UNITS: Choose the system of units desired. Turf units are

the same as English units except Area is in thousands of

AREA (1) (2) (3)

Units), MEt (Metric) and TurF (Turf units).

WIDTH

CAL

square feet. Use the “+” and “-” buttons to choose between EnG

(American English

Console Operation

Console Switches and Buttons

CONSOLE: The MT-NH3

easy-to-read back-lit liquid crystal display, and back-lit panel for night operation.

POWER SWITCH: The switch turns on power to the console.

RUN/HOLD SWITCH: The RUN/HOLD is the master switch

for controlling NH3 delivery.

AUTO/MAN BUTTON: This button will switch control

from fully automatic to manual control. Each press of the button will change the status. The display will show the “AUTO” icon when automatic control mode is active and the “MAN” icon when manual control mode is active.

CAL BUTTON: This button allows you to enter and exit

calibration mode. Calibration mode can only be entered if the Run/Hold switch is in the Hold position. Pressing and holding the CAL button for approximately one second will put the console in calibration mode. The display will show the “CAL” icon and the RED warning light will be illuminated. Pressing and holding the “CAL” button again for approximately one second will exit calibration mode and return the console to normal operating mode. The display will no longer show the “CAL” icon and the RED warning light will turn OFF.

II control panel features a large,

RESET

™

AUTO

AREA (1) (2) (3)

DISTANCE

AREA/ HOUR

SPEED

WIDTH

CAL

SPEED

CAL

FLOW

CAL

MIN

FLOW

ADJUST

RATE

TARGET

RATE

MT-NH3 II

TOTAL NH3 (1) (2) (3)

NH3 PER MINUTE

TANK (NH3)

RATE ACTUAL “N”

AUTO

CAL

MAN

Turn rotary dial to display desired readout.

ROTARY SWITCH: During normal operation, you can view any one of eight monitored functions by turning the rotary switch to the appropriate position. The functions that are active during normal operation are the teal boxes. When you are in calibration mode, the functions that are active are in white type (please refer to Calibration section for details).

“+” AND “” BUTTONS: These buttons are used to adjust

calibration values when calibrating the system. During normal operation, when automatic “AUTO” control mode is active and the rotary dial is set to “RATE ACTUAL N ”, each press of the “+” and/or “-” buttons will increase and/or decrease the target application rate by the amount of the calibrated adjust rate.

During normal operation, when manual “MAN” control mode is active and the Run/Hold switch is in the Run position, pressing the “+” and/or “-” buttons will increase or decrease the application rate by opening and closing the servo valve.

During normal operation, when either automatic or manual mode is active, the Run/Hold switch is in the Run position, and the rotary switch is turned to FLOW RATE, pressing the “+” and/ or “-” buttons will open or close the servo, without having the NH3 shut-off valve open.

The”+” button is also used to select the active pair of “TOTAL NH3” and “AREA” counters. The “-” button is used to reset the counters. See page 24 for details.

Console Operation (cont)

Console Switches and Buttons

MT-NH3 II

Lbs. (kg) NH3 (scale tickets are in

NH3 for easy comparison)

(3 sets of counters)

Lbs. (kg) NH3/Minute

Lbs. (kg) NH3

remaining in tank

Lbs. (kg) N per acre/(hectare)

provides application rate of

actual nitrogen

ONTHEGO “DELTA” RATE ADJUSTMENTS ADJUST RATE: The calibrated target rate in pounds (kg) of actual

“N” per acre (hectare) represents the amount of actual “N” that you typically want to apply. However, under certain conditions, you may want to increase or decrease this rate. The “DELTA” feature allows you to easily make on-the-go rate adjustments by simply using the “+” and “-” buttons. Each press of a button changes the calibrated target rate by the amount of calibrated adjust rate.

To use the “DELTA” feature, the console must have automatic “AUTO” mode active and the rotary switch must be set to the RATE position.

Example: Adjust Rate = 5.0 and Target Rate = 150.0

With AUTO selected and the rotary selector turned to RATE ACTUAL “N”, pressing the “+” key once will increase the

FLOW

CAL

MIN

FLOW

ADJUST

RATE

TARGET

RATE

TOTAL NH3 (1) (2) (3)

NH3 PER MINUTE

TANK (NH3)

RATE ACTUAL “N”

AUTO

MAN

CAL

™

AUTO

AREA (1) (2) (3)

DISTANCE

AREA/ HOUR

SPEED

RESET

WIDTH

CAL

SPEED

CAL

Total area in acres (hectares) (3 sets of counters)

Feet (meters) travelled since last reset

Acres (hectares) being covered per hour

Vehicle speed in MPH (kph)

WARNING DEVICE: Flashes if actual application rate is +/- 10% o from target rate. Also lights when in Calibration Mode.

target rate from 150.0 to 155.0. The display will momentarily show the new target rate of 155.0 and then show the actual application rate. Pressing the “-” key once will decrease the target from 155.0 to 150.0.

The display will momentarily show the new target rate of 150.0 and then show the actual application rate.

NOTE: When you “DELTA” the target rate, the display will momentarily show you the new target rate (approximately two seconds) and then resume showing the actual application rate. The new target rate is maintained until further adjustments are made using the “DELTA” feature or until calibration changes occur.

AREA/HOUR: Displays the pounds (kg) of NH3 per minute

being applied.

SPEED: Displays the vehicle speed in MPH (KPH).

Field Operation

Always follow accepted safety precautions. Make sure that equipment is in good operating order. Before connecting the nurse tank to the applicator, check the electric shut-off valve of the SprayMate™ Plus system for proper operation.

After changing nurse tanks or after other periods of long shut-down, operate the system in MANUAL until the application rate stabilizes. This allows the heat exchanger to reach operating temperature before selecting AUTO. Erratic operation may be experienced if AUTO is selected before operating temperature is reached.

The Liquifier™ system uses NH3 vapor to cool the heat exchanger, changing the mix of gas and liquid entering the system into 100% liquid before it enters the flowmeter. A small percentage of liquid NH3 is tapped off between the shutoff valve and control valve and enters the vapor side of the heat exchanger. As it enters the heat exchanger, it passes through a hose barb equipped with a 3/32” orifice. This regulates the amount of NH3 that passes through the exchanger as a coolant. As it passes through the orifice, the pressure release converts the liquid NH3 to vapor. This change causes the vapor to drop to a very low temperature which allows it to be used as a refrigerant, turning the incoming NH3 to 100% liquid.

Console Operation (cont)

Field Operation

Erratic application rate

1. Start applying and when your rate is close to your

target, select the gallons per minute, or lbs per minute display on your controller. This is the reading directly off the flowmeter. Place the controller in MANUAL. This stops movement of the control valve. If the rate stabilizes the erratic operation is most likely induced by the control system.

Possible Solutions:

A. Set the VALVE CONTROL SPEED to a lower setting. Negative values slow down the response of the valve, positive numbers make the response more aggressive. Typical control speed values for NH3 application are -2 to -4, but vary by installation. B. Verify adequate manifold pressure. Manifold pressure is very important for smooth control and even distribution of NH3. Use barbed fittings with properly sized orifices or an adjustable manifold to maintain adequate pressure. If manifold back pressure is too low, the only resistance to the flow of NH3 is the control valve. At lower rates, this will result in the control valve operating almost fully closed. This results in erratic control since the flow through the valve can vary greatly with minimal movement. Adequate back pressure allows the valve to operate in a more open position which results in stable application rates. Typical manifold pressure ranges from 15 to 60 PSI (1 to 4 bar) depending on application rates and ambient temperature.

2. If the rate continues to bounce around while in MANUAL,

vapor may be entering the flowmeter. Any obstruction (clogged filter, partially closed tank valve, plugged tank dip tube) can cause a pressure drop which will in turn generate large amounts of vapor.

Possible Solutions:

A. If the rate in MANUAL is varying by a small amount (10

- 20 lbs per acre) this may indicate worn bearings in the

flowmeter. B. Verify the vapor line and vapor control orifice are clean and free of obstruction. C. Verify the strainer is clean.

Poor System Performance

In NH3 control systems, location of the frost build-up is an indication of system performance. The NH3 kit will normally have frost on the output side of the servo valve and on the bottom portion of the heat exchanger. Frost before the servo valve or on the flowmeter indicates vapor in the system as a result of excessive pressure drop (caused by obstructions) in the delivery system, restricted vapor lines or clogged vapor control orifice.

The strainer is a common source of excessive pressure drop and should be cleaned regularly. AFTER COMPLETELY DRAINING THE SYSTEM, remove the large plug and carefully clean the strainer screen. Also, periodically check the vapor tubes for obstructions.

Resetting System Counters

The AREA, DISTANCE and VOLUME counters maintain a running count during operation regardless of the position of the rotary switch. When any of these counters reach their maximum capacity, or when you want to start a new count, the value may be reset to zero by performing the following steps. Counters may be reset independently of each other.

1. Turn the Run/Hold switch to Hold.

2. Turn the rotary switch to the counter to be reset.

3. To reset distance turn the rotary switch to DISTANCE, press and hold the RESET button until the display reads zero. The display will show the word “CLEAr” during this process, and will show 0.0 when reset is complete.

4. To reset the volume and area counters; there are three independent AREA counters, paired with three VOLUME counters. The active pair of counters is indicated by the small numbers in the lower right area of the display (1,2, or 3) when the rotary switch is in the AREA or VOLUME position. Select the pair of counters you want to use by pressing the “+” button. The small number will increment each time the “+” button is pressed (from 1 to 3, then rolls back to 1). DO NOT attempt to select the counter number by using the “-” button, because that will clear the active pair of counters if held for 2 seconds. If the “-” button is

accidentally pressed, the console will display “CLEAr” to alert the user that the counters will be cleared. If the user continues to hold the “-” button for 2 seconds “CLEAr” will disappear and be replaced by 0.0, indicating that the selected pair of counters has been cleared.

Display indicates which counter pair is selected

RESET

™

AREA (1) (2) (3)

DISTANCE

AREA/ HOUR

SPEED

WIDTH

CAL

SPEED

CAL

FLOW

CAL

MIN

FLOW

ADJUST

RATE

TARGET

RATE

MT-NH3 II

TOTAL NH3 (1) (2) (3)

NH3 PER MINUTE

TANK (NH3)

RATE ACTUAL “N”

AUTO

CAL

MAN

Console Operation (cont)

Clearing Counters

When the desired counter number is displayed, press the “-” (RESET) button and “CLEAr” will be displayed. NOTE:

holding the “-” (RESET) button for 2 seconds will clear both the #3 AREA counter and the #3 VOLUME counter whether the rotary switch is in the AREA or the VOLUME position. If

the “-” button is released before 2 seconds have elapsed, the counters will not be cleared and the “CLEAr” message will be replaced with the previous total.

MT-NH3 II

™

FLOW

CAL

MIN

FLOW

ADJUST

RATE

TARGET

RATE

TOTAL NH3 (1) (2) (3)

NH3 PER MINUTE

TANK (NH3)

RATE ACTUAL “N”

AUTO

MAN

CAL

RESET

AREA (1) (2) (3)

DISTANCE

AREA/ HOUR

SPEED

WIDTH

CAL

SPEED

CAL

After the “-” (RESET) button has been held for 3 seconds, the “CLEAr” message will be replaced by 0.0, indicating that counter pair #3 has been cleared.

Troubleshooting

Typically indicates that defaults were entered by powering up with the CAL

are

should

will ash if tank level is equal to or less than

tank set point. Fill tank and reset TANK counter by setting the rotary switch at

make

below

CAL

Calibration

hours

cleared

select

Messages/Warnings

M CAL

and “-” buttons held, but calibration mode was not entered and exited. Cycling power will not clear the bad CAL message, it can only cleared by entering and exiting calibration mode.

Low Power. Check all power and ground connections.

Has loaded Default Cal factors (appears when default calibration factors loaded by holding CAL and “-” buttons while turning the console on).

Will ash in display if rotary switch is in RATE ACTUAL N position and there i no Speed signal regardless of all other conditions. Check speed sensor and connections per Troubleshooting guidelines.

Will ash in display if rotary switch is in RATE ACTUAL N position and have ow, but no ow is detected. Check owmeter and ow harness connections per Troubleshooting guidelines.

Rotary switch in any position, FILL

the TANK position and pressing the “+” button for one second. Check to sure TANK set point is properly calibrated.

Warn LED ashes when the Rate error is over 10% or Volume/Minute is the Minimum, or Tank is less than Tank Set Point. It is on steady when in mode or SPECIAL CAL mode or Test Speed.

Special Calibration mode is active. Appears when entering Special mode (hold AUTO/MAN and CAL buttons while turning console on).

The “V” icon shows that a 12v control valve (not 8v) is currently selected. startup, the “V” is also displayed next to the software version #. (Console displayed rst.)

The message alerts the user that the currently selected counter will be if held for 2 seconds. Also serves as a reminder to use “+” button to counters.

Counters (DISTANCE or AREA or VOLUME) have overowed their maximum. RESET (see pages 27-28) to clear counters and resume counting.

Troubleshooting (cont)

General

All MT-NH3TM II consoles, flowmeters and servo valves are tested prior to packaging, so unless there has been damage in shipment you can be confident that everything will be operational when you receive it.

However, if you do encounter a problem that appears to be related to equipment failure, PLEASE DO NOT OPEN THE CONSOLE. Your system is protected by a warranty, and Micro-Trak will gladly correct any defect.

Many problems are the result of mistakes in installation or operation. Before returning any parts for service, carefully check your installation and review the operating instructions. For easy-to-follow guidelines, refer to the troubleshooting section which follows.

WARNING: THE NURSE TANK SHOULD NOT BE CONNECTED TO THE SYSTEM DURING THESE PROCEDURES.

ELECTRIC SHUTOFF DOES NOT OPERATE

With console ON, check for constant power (12 VDC) between pins “K” and “B” of the main harness 10-pin connector. Check for power between pins “K” and “J” of the main harness 10-pin connector when Run/Hold Switch is in Run position. If pin “B” has constant power, and pin “J” has power when Run/Hold Switch is in Run position, shut-off valve may be defective.

NO FLOWRELATED READINGS

No readout of pounds (kg) of “N”, or pounds (kg) of “N” per minute

Check to see that the tool bar and nurse tank plumbing is operating properly. Also check the flow sensor to be sure it is screwed all the way into the flowmeter.

Check to see that a FLOW CAL number has been entered in calibration of the console. Also check cable for breaks or incomplete connection.

To test the flow sensor, unscrew flow sensor from flowmeter. Using a Micro-Trak magnet, pass the magnet by the tip of sensor alternating side of the magnet each pass. If the console accumulates pounds (kgs) gallons, the flowmeter turbine could be stalled. Stalls may occur due to foreign material in flowmeter. Disassemble and clean flowmeter. If console does not respond, unplug 10-pin connector and several times rapidly short together pins “A” and “C” on the main harness. If console responds to shorting but not to magnet, sensor is defective. If console does not respond to shorting, main harness may be defective.

CONSOLE APPEARS DEAD

Using your test light, check for 12 volts at the power source. Also check for damaged power cable or reversed terminals. Check for 12v between pins A and C of the 3-pin connector coming out of the top of the master switch box. The switch should be in the center position. (Console requires 12 volts

for proper operation).

SPEED IS ALWAYS ZERO OR ERRATIC

Check for properly calibrated wheel circumference.

Review speed sensor installation. Check for proper mounting, alignment and spacing of speed sensor in relationship to magnet assembly. Make sure magnet polarities are alternated. Also check cable for breaks or incomplete connection.

For more suggestions on solutions to speed problems, see Hall-effect inputs and console inputs on pages 28-29.

AREA COUNT IS INACCURATE

Implement width or wheel circumference was measured incorrectly or programmed incorrectly. Go back through the original procedures, make changes, and test for acre (hectare) count again. Verify accuracy with formula:

Acres= Distance x Width in feet/43560

DISTANCE COUNT IS INACCURATE

Wheel circumference was incorrectly measured or entered. Review calibration, readjust and test.

TOTAL NH3 USED IS INACCURATE

This may result from an incorrectly-entered “FLOW CAL” value. Check the number stamped on the flowmeter tag, and be sure this is entered in the console’s “FLOW CAL” position. If the meter has been used for some time, wear may have changed the Flow Cal value. See Fine-Tuning

Flowmeter Calibration on page 34.

Check to see that the flow sensor is screwed all the way into the flowmeter. The console displays total actual NH3 used. Scale tickets typically also read NH3.

Other causes may be inaccurate tank gauges, a flow rate too low to register, or foreign material lodged in the flowmeter.

CONSOLE IS ERRATIC IN OPERATION

If you have a two-way radio, it may be mounted too close to the console. Keep all MT-NH3TM II cables away from the radio, antenna, and power cable.

Ignition wires may be causing the console to malfunction. Keep MT-NH3TM II cables away from ignition wires, or install a noise suppressor.

Reroute all cable away from electric solenoids, air conditioning clutches and similar equipment.

DISPLAYED MEASUREMENTS DO NOT MAKE SENSE

The console may be in the incorrect measurement mode (English or metric). See page 16 for instructions.

DISPLAY READS “OFL”

DISTANCE, AREA, and TOTAL NH3 will read OFL when they have exceeded their maximum count. Reset to zero to resume counting.

EDCBA

FGHJ K

Troubleshooting (cont.)

Checking Individual Components

CONSOLE

The best way to field test a console is to con nect it to a harness on a vehicle with a known working console.

HARNESS

The harness can be checked using an ohm me ter or continuity tester. The main wiring diagram shows the pin out of all connectors. See page 30.

ELECTRICAL INTERFERENCE

Erratic operation of the system may be the result of electrical interference from ignition wires or inductive loads (electrical clutch, fan, solenoid, etc.). Always try to route wires as far away from suspect areas as possible. If problems occur, you may need to relocate the console and/or wiring harness, or install a noise suppressor and/or resistor spark plugs.

POWER

The power cable has a two-pin connector labeled A and B. Check between A and B with a volt meter or test light. If there is no pow er, trace cable toward battery look ing for breaks. Also check any fuses or circuit breakers that supply pow er to the console.

MAGNETIC HALL-EFFECT SPEED AND FLOW SENSORS

Caution: Improper connection or voltage could damage the Hall-effect sensor.

The Hall-effect sen sor works similar to a reed switch, but re quires pow er in order to func tion. Also, this par tic u lar type of Hall-effect sen sor re quires al ter nat ing magnetic po lar ities in or der to switch. This means that the north pole of a mag net will “open” the Hall effect and the south pole of a magnet will “close” the Hall effect.

Ground pin C (black) and connect clean 12 volts to pin B (white) of the Hall-effect sensor cable. Con nect the positive lead (red) of an ohmmeter or con ti nu ity tester to pin A (red) and the negative lead (black) of the ohmmeter or continuity tester to pin C of the Hall-effect sensor cable.

Holding the tip of the sensor up to the north pole of a magnet should result in a very high re sis tance (in fi nite), while holding the tip of the sensor up to the south pole of a magnet should result in a very low resistance (near zero).

VANSCO RADAR SPEED SENSOR

Carefully check your installation and operating instructions. The following are tips for troubleshooting;

1. Disconnect the radar adapter cable from the console harness.

Main Wiring Harness Ten Pin Con nec tor

ACCESSORY POWER

The speed and flow cables have an ac ces so ry power wire. Check for 12 volts between pin B (usu al ly white) and pin C (usually black) on either of the 3-pin con nec tors. If power is not present, make sure the ac ces so ry pow er wire is not open or shorted to ground or to another wire. If this wire has a prob lem, the con sole may ex hib it erratic behavior or not function at all.

2. Check for 12 VDC between pins B and C of the main harness connector (yellow tie). If not present, console or harness may be defective.

3. Using a jumper wire (paper clip bent into a “U”), rapidly short together positions A and C of the main harness speed connector (yellow tie) several times. The console should respond with some speed reading. If not, the console or harness may be defective.

4. Reconnect the radar adapter cable to the main harness speed connection (yellow tie).

5. Disconnect the radar from the radar adapter cable.

6. Check for 12 VDC between pins 1 and 3 of the radar adapter connector. If it is not present but was present in step 2, the radar adapter cable may be defective.

7. Using a jumper wire (paper clip bent into a “U”), rapidly short together positions 2 and 3 of the radar connector (round 4-pin) several times. The console should respond with some speed reading. If not but had a reading in step 3, the radar adapter cable may be defective.

8. If system passes all above tests, the radar may be defective.

Troubleshooting (cont.)

Checking Individual Inputs

CONSOLE INPUTS

If there is no response from any of the following tests, refer to the main wiring diagram on page 30 to locate the next connector in line to ward the con sole and repeat the test at that con nec tor. If there is a response at that connector, the problem may be in the cable between the two connectors (or the con nec tors themselves).

LOCAL SPEED INPUT

Turn rotary switch to speed po si tion and dis con nect the local speed access. Check for 12 volts between pins B (green) and C (blue) of the local speed access connector. Using a clip lead or other jumper wire (such as a paper clip bent in a “U”), several times rap id ly short to geth er pins A (yellow) and C (blue) of the 3-pin connector. The console should respond with some speed read ing.

FLOW INPUT

Turn rotary switch to NH3 PER MINUTE and disconnect the flow sen sor (green tie) from the main harness. Check for 12 volts be tween pins B (white) and C (black) of the main harness flow cable (green tie). Using a clip lead or other jumper wire (pa per clip bent in a “U”), several times rapidly short together pins A (red) and C (black) of the 3-pin connector. The console should re spond with some NH3 per minute reading. See Illustration 14.

Illustration 14

SERVO VALVE CONTROL SIGNAL

To test the servo valve control signal, turn the rotary switch to NH3 per minute and place the Run/Hold Switch in Hold position, then using a voltmeter or simple test light, check from a good frame ground to each of the servo wires on the main harness connector. You should get 0 volts on each wire. Holding the “+” button should cause the RED wire to pulse toward 12 volts (light will pulse). Holding the “—” button should cause the BLACK wire to pulse toward 12 volts (light will pulse).

SERVO VALVE

To test the servo valve, turn the rotary switch to NH3 per minute and place the Run/Hold Switch in Hold position, then with the servo valve connected to the servo valve lead on the main harness, hold the “+” button to open the servo valve and hold the “—” button to close the servo valve (provided the console has passed the Servo Valve Control Signal test). The servo valve should operate smoothly from fully open to fully closed, in both directions. If a functional servo valve will not run at all or takes more than 20 seconds to run from fully open to fully closed, check for low voltage or poor power connection.

You may also use a 9-volt battery. Connecting the battery to each terminal on the servo valve should cause the servo valve to run in one direction. Reversing the battery connections should cause the servo valve to run the other direction. The servo valve should operate smoothly from fully open to fully closed, in both directions.

CBA

Three-Pin Connector

FLOWMETER

Shaking the Flowmeter end to end should pro duce a “rattling” sound (shaft end play). Blowing in the meter from either end should spin the turbine freely. If the turbine spins freely but the meter will not register flow with a known working sensor, the turbine may be defective. See Flow meter Assembly and cleaning on pages 35-36 for details.

PLUMBING

Proper plumbing is a very important factor in obtaining optimal performance from your MT-NH3TM II system. At this point, it is assumed that your servo valve, flowmeter and shut-off are known to be functioning properly. Don’t forget the obvious such as pinched hoses. Avoid elbows and restrictions in plumbing whenever possible. The use of safety couplers less than 1 ¼” IS NOT recommended.

MT-NH3TM II - NH3 Specic Wiring Di a gram

FLOW

CONNECTS TO

SPEED

CONTROL

SERVO

NH3 SHUTOFF

VALVE

CONNECTS TO

MT-NH3 CONSOLE

Appendices

Appendix A

Speed Sensor and Bracket

Speed Sensor

FABRICATED BRACKET

Optional

Hub

Top View

Speed Sensor Mounting Installation

Implement Wheels

1. Secure magnets mechanically or with epoxy.

2. Rigidly mount sensor mounting bracket to the wheel assembly. Cut or bend “L” bracket as required for proper positioning of sensor.

3. Install sensor, adjust to correct spacing (1/4” to 1/2 “ or 6 to 13 mm is recommended), and secure with 3/8” locking nuts. See Illustration on the right.

Front Tractor Wheel

1. Magnets may also be secured with a cable tie and an adhesive such as epoxy.

2. Mount the speed sensor bracket to a part of the wheel assembly that does not change position to the hub when the wheels are turned. If the “L” bracket provided cannot be bent and mounted to properly position the sensor, make a bracket similar to the one shown at right.

3. Install sensor, adjust to correct spacing (1/4” to 1/2 “ or 6 to 13 mm is recommended), and secure with 3/8” locking nuts. See Illustration on the right.

¼” Bolts, Lockwashers and Nuts

Speed Sensor

Cable Tie

Tap thread fo

bolts or weld

Cable Tie

of hose to

protect cable

3/8” hole

for sensor

section

3/8” nut

Sensor

3/8” nut

Appendix B

Fine Tuning Speed/Distance Calibration Val ue

This procedure is used to verify the speed/distance calibration. In order to achieve accurate measurements, each step in this fine tuning procedure should be performed as precisely as possible.

WARNING: THE NURSE TANK SHOULD NOT BE CONNECTED TO THE SYSTEM DURING THIS PROCEDURE.

PREPARATION

5. With the display showing distance (“CAL” is flashing), compare the number displayed to the dis tance you drove. If the values are not equal (within 2%), press the “+” or “-” key to ad just the fig ure to match the dis tance you ac tu al ly drove. If the display reads too high, use the “-” key to lower the dis played value. If the display reads too low, use the “+” key to raise the displayed value.

• Once the system is fully installed and calibrated, se lect a straight tract of ground that is similar to your ac tu al field conditions and as level as pos si ble.

NOTE: Us ing a course with a different ground sur face,

such as a hard-surface road, will re sult in dif fer ent read ings than exact field con di tions.

• Measure a distance of 1000 feet (500 meters). Clearly mark the beginning and end points with flags or some thing highly visible to the operator.

PROCEDURE

1. Turn console Power on and Run/Hold switch to Hold.

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 return to 0 (approximately one second). The word CLEAr will be displayed when reset is pressed.

2. Your are now ready to drive the measured course. Pick

a location on the vehicle to use as a marker for starting and stopping the distance counting function (door handle, mirror, step, etc.) You should begin driving the course well ahead of the starting flag and drive past the ending flag, using the Master switch to start and stop the counting function. It is not recommended to start from a dead stop at the starting flag and stop at the ending flag.

3. Place the Master switch in the Console ON/Valve On

position to activate the distance counting function when the marker on the vehicle passes the starting flag. The console display numbers will increase, adding to the distance total as you drive. Drive the pre-measured course and place the Master switch in the Console On/ Valve Off position when the marker on the vehicle passes the ending flag, to stop the distance counting function. Stop the vehicle in a level and safe area and continue with this procedure.

6. When the number shown on the display match es (as close ly as possible) the ac tu al dis tance driv en, you have ar rived at the cor rect cal i bra tion val ue. If you can not adjust the displayed distance to exactly match the actual dis tance driven, adjust the figure as close as possible to the actual distance. You may check the calibration number by momentarily pressing CAL. The CAL icon will be on steadily and the SPEED CAL number will be displayed. See Illustration 15.

7. Exit calibration by holding the “CAL” button until the red warning light goes out (about one second).

The speed sen sor is now calibrated. To verify proper calibration, repeat the procedure a sec ond time. Write down the new speed calibration number and keep it in a safe place. If the cal i bra tion values are ever accidentally changed, you can simply re-en ter this num ber.

Illustration 15

RESET

™

AREA (1) (2) (3)

DISTANCE

AREA/ HOUR

SPEED

WIDTH

CAL

SPEED

CAL

Run/Hold switch in Hold position

FLOW

CAL

MIN

FLOW

ADJUST

RATE

TARGET

RATE

TOTAL NH3 (1) (2) (3)

NH3 PER MINUTE

TANK (NH3)

RATE ACTUAL “N”

AUTO MAN

MT-NH3 II

CAL

4. With the rotary dial still at DISTANCE (SPEED CAL), press and hold the “CAL” key for one second. Once the console is in “CAL,” CAL and the speed calibration value will be displayed. Momentarily press CAL and the word CAL will begin to flash and the distance travelled will be displayed.

Appendix C

Fine Tuning Flowmeter Calibration

This procedure is used to verify and fine-tune the flowmeter calibration. Every flowmeter is calibrated with water at the factory and stamped with a calibration val ue. Enter that value as a starting point and use this pro cedure to fine-tune that value for your specific in stal la tion and NH3 application (Please refer to En ter ing Flow me ter Calibration Value, page 17).

PROCEDURE

1. Start with a full nurse tank. Make certain that you have an accurate scaled weight of the full tank. You will want to apply a minimum of 1,000 pounds of NH3 for this procedure. The larger the volume of NH3 used, the more accurate the calibration will be.

2. With the Run/Hold switch switch in the Hold position, turn the rotary selector to the TOTAL NH3 (1) (2) (3) position. Select which pair of VOLUME/AREA counters (1, 2, or 3) that you want to use by using the “+” button ONLY to select the pair of counters as identified by the small number in the lower right area of the left-hand display. If you attempt to use the “-” button, it will clear the selected counter pair (CLEAr will be displayed before the counters are cleared). After you have selected the counter pair number, press and hold the RESET button until the display reads 0.0.

3. Proceed to the field and perform actual application (turn Run/Hold switch to Run) until at least 1,000 pounds of NH3 has been applied. (One nurse tank is preferred). The larger the volume of NH3 applied, the more accurate the calibration will be. Obtain an accurate scaled weight of the partially used nurse tank. The difference between the starting and ending weight is your calibration weight.

4. Put Run/Hold switch in the Hold position. Compare the console’s TOTAL NH3 reading with the known amount of NH3 applied. If the two amounts are within one or two per cent, no fine tuning is required. If the two amounts are more than two or three percent dif fer ent, con tin ue with the next step.

5. With the console still in the TOTAL NH3 position, enter calibration, hold the CAL button until red warning light comes on; about one second. The dis play will show the flowmeter calibration value and the CAL icon.

6. Momentarily press the CAL button. The CAL icon will begin to flash and the total volume will be displayed.

See Illustration 16.

7. When the TOTAL FLOW value is displayed, use the “+” or “-” button to adjust the value to match the amount of NH3 run.

8. Momentarily press the CAL button. The CAL icon and the flowmeter calibration number will be displayed. You will notice that the flowmeter calibration value has changed. Write down the new flowmeter calibration value. This is your “fine tuned” calibration value, keep it for future reference.

9. Exit calibration by holding the “CAL” button until the red warning light goes out (about one second).

Illustration 16

RESET

™

CAL

AREA (1) (2) (3)

DISTANCE

AREA/ HOUR

SPEED

WIDTH

CAL

SPEED

CAL

Run/Hold switch in the Hold position

FLOW

CAL

MIN

FLOW

ADJUST

RATE

TARGET

RATE

TOTAL NH3 (1) (2) (3)

NH3 PER MINUTE

TANK (NH3)

RATE ACTUAL “N”

AUTO

MAN

MT-NH3 II

CAL

Appendix D

Flowmeter Assembly (FM-750 N)

WARNING

TO PREVENT SERIOUS INJURY, DO THE FOLLOWING

1. ALWAYS WEAR gloves, goggles, and other necessary

equipment when handling NH3 apparatus.

2. DO NOT cross thread. Use anti-seize lead base thread

compound.

3. THOROUGHLY BLEED hoses before disconnecting NH3

apparatus.

4. COMPLETELY EVACUATE NH3 apparatus before

servicing.

IMPORTANT: Opening the flowmeter will void the Flow Calibration value assigned to your unit. However, you may need to take the flowmeter apart for periodic cleaning or to remove an obstruction. See Illustration 17.

TO OPEN THE FLOWMETER

Disconnect the hose from servo valve to manifold. Loosen the union hex closest to the heat exchanger. Remove the two “U” bolts that hold the servo/flowmeter assembly to the brackets. Unscrew the union from the heat exchanger and remove the servo/flowmeter assembly.

Use running water to rinse the assembly of any accumulated dirt. Remove the three flowmeter bolts, carefully open the flowmeter and remove the turbine. Thoroughly clean turbine and housings of any foreign material (dirt, pieces of teflon tape, rust on magnets, etc.). Set and spin the turbine in each flowmeter housing half. It should spin freely. If not, remove the turbine, wipe the shaft and try again.

Complete assembly FM750 N Flowmeter P/N 10899

Teon Gasket

P/N 10137

Please Note: The turbines have magnets built into the fins. There are no visible magnets on the inside of the cavity.

TO ASSEMBLE THE FLOWMETER

Place the servo, flowmeter end up, in a vice or other suitable fixture. Set turbine in non-sensor housing. Properly position gasket on housing. (Gasket may be reused a few times but will eventually need to be replaced.) Pipe thread compound is not absolutely necessary but will insure a good seal. Be careful not to get compound inside flowmeter or the turbine will stall. Carefully put other flowmeter housing (sensor half) in place. (Position the housing so that the two square lugs are lined up with each other.) Drop all three bolts into holes. Hold lock washers in place and finger tighten all three nuts. Nuts should be torqued to 120 in./lb. (13.56 nw/m). Attach tag by running wire between a bolt and the housings, and twisting.

After assembly, shaking flowmeter end-to-end should produce a “rattling” sound (shaft end play). Blowing into the meter from either end should cause the turbine to spin freely. If the turbine only spins from one direction, install the flowmeter so that the liquid flows in that direction.

Start with original calibration number and follow procedure in Appendix B to fine-tune the calibration.

Illustration 17

Housing FM 750 N with Sensor

Receptacle, Including Bearing

P/N 10145

Housing, Includes Bearing

P/N 10116

Turbine

P/N 14836

Appendix E

Flowmeter Assembly (FM-1500 N)

WARNING

TO PREVENT SERIOUS INJURY, DO THE FOLLOWING

1. ALWAYS WEAR gloves, goggles, and other necessary

equipment when handling NH3 apparatus.

2. DO NOT cross thread. Use anti-seize lead base thread

compound.

3. THOROUGHLY BLEED hoses before disconnecting NH3

apparatus.

4. COMPLETELY EVACUATE NH3 apparatus before

servicing.

TO REMOVE THE FLOWMETER

Loosen two 1/2” bolts securing unit (shutoff valve end) to tool-bar. Loosen union between flowmeter and shutoff valve. Slide shutoff valve away from flowmeter and unscrew flowmeter from heat exchanger.

Assemble in reverse order.

TO DISASSEMBLE THE FLOWMETER

Remove retainer clip from one end and slide out internals. See Illustration 19. Be careful not to bend turbine shaft.

Clean and inspect parts.

If turbine does not spin freely, flowmeter may require repair. Turbines and bearing replacement kits are available.

Before reconnecting the union, loosen all six 3/8” carriage bolts at bottom of mounting bracket uprights. Tighten union then re-tighten 3/8” carriage bolts. This ensures that unit sits flat on tool bar and does not “teeter” on center bracket.

Start with original calibration number and follow procedure in Appendix B to fine-tune the calibration.

Complete assembly FM1500 N Flowmeter P/N 14348

Screws

Retainer clip

Illustration 18

Sensor bracket

Flowmeter housing

Turbine

Bearing housing

Sleeve

Bearing housing

Retainer clip

Appendix F

1. Ground

2. Signal

3. +12 Volts

4. N/C

2 1

4 3

4 2

1. 12 Volts

2. +12 Volts

3. Signal

4. Ground

2 3

1 4

3 2

4 1

1. Ground

2. Signal

3. +12 Volts

4. Enable

4 3

1 2

1. Ground

2. 12 Volts

3. Signal

1. 12 Volts

2. 12 Volts

3. Signal

4. Ground

3 4

2 1

1 2

1. Ground

2. Signal

3. 12 Volts

4. 12 Volts

3 4

4 3

1 2

1. +12 Volts

2. Ground

3. Signal

4. Enable

3 4

DICKEY-john Radar Ford Connector

DICKEY-john Radar Cannon Connector

DICKEY-john Radar Amp Connector

In-Cab John Deere Metri-Pack Connector 8000/9000 Series

In-Cab John Deere 30 Series 7-pin Amp

Raven Radar Conxall Connector

Magnavox & Phillips Radar Packard Connector

DICKEY-john Radar Packard Connector

In-Cab John Deere “Y” Connector

Vansco Radar Amp Connector

P/N 14812

P/N 14813

P/N 14811

DICKEY-john Radar Deutsch Connector

P/N 14814

P/N 14815

P/N 14816

P/N 14818

P/N 14817

1. Ground

2. Signal

P/N 17811

In-Cab John Deere 1-pin M/P 280

P/N 18041

1. Ground2.

Signal

1. Ground2.

Signal

In-Cab Case MX Series Britax Connector

P/N 18319

P/N 14810

P/N 14926

Case FMX Deutsch Connector

P/N 18774

Pin 2 - Signal Pin 10 - Ground

Radar Adapter Cables

Appendix G

Replacement Parts List

The following replacement parts are available from your dealer or distributor. Micro-Trak Systems, Inc. • P.O. Box 99, 111 East LeRay Avenue • Eagle Lake, MN 56024-0099

When ordering parts, please list the model number of your console, and the description and part number.

Part Number Description

01410 Astro II GPS Speed Sensor 01425 Astro 5 GPS Speed Sensor 01531 Magnetic Speed Sensor Kit 12069 Magnet Kit (6 magnets per bag) 12910 14” Black Plastic Cable Ties (bag of 10) 13181 Console Mount Kit* 13096 5-foot Hall-effect Speed/Flow Sensor Cable 13273 Flow, Servo, and Shutoff Cable 7’ 14315 Power (Battery) Cable 15’ w/10A fuse 14955 MT-NH3 II Installation/Operators Manual 14956 MT-NH3 II Console 17392 Hall effect Speed/Flow Sensor Cable 1” 18767 MT-NH3 II Power/Master Switch Adapter Cable 21779 Console Power Switch Assembly 21963 Console Master (Run/Hold) Switch Assembly

*The Console Mount Kit is available only as a complete kit, some parts are not available in individual components. Parts and design specifications subject to change without notice.

Optional 3-Pin and 10-Pin Metri-Pack 150, and 3-Pin Weather-Pack extension cables:

Part No. M/P 3-Pin Part No. M/P 10-Pin Part No. W/P 3-Pin 13205 5-Foot 13220 5-Foot 10450 5-Foot 13206 10-Foot 13221 10-Foot 10449 10-Foot 13207 15-Foot 13222 15-Foot 10876 15-Foot 13208 20-Foot 13223 20-Foot 10829 20-Foot 13209 25-Foot 13224 25-Foot 11462 25-Foot 14142 50-Foot

111 East LeRay Avenue • P.O. Box 99 • Eagle Lake, MN 56024-0099

Toll Free: (800) 328-9613

Phone: (507) 257-3600 Fax: (507) 257-3001

www.micro-trak.com

trakmail@micro-trak.com

micro-trak MT-NH3 II Reference Manual

Specifications and Main Features

Frequently Asked Questions

User Manual