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Ag-Tester HT101V Reference Manual

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HT101V Reference Manual
Overview
The HT101V from Ag-Tester is our handheld tester
designed to diagnose valve components on agricultural
machinery.
Valves tested include:
1- Boom Control Valves
2- Servo Rate Control Valves
3- PWM Control Valves
The top section of the HT101V is the meter. The user
can make measurements including Voltage, Frequency
and Resistance.
The lower part of the HT101V is the diagnostic and valve control center. When used with the "In-Line", Tester- Tee
harness, the HT101V will monitor the supply and control voltages being provided by the display. Test terminals are built
into the HT101V to allow metering connections to be made without disturbing the connectors and cables associated
with the control console. Valves can be fully tested, in-line, independently from the display.
When used with the "Stand- Alone", Tester Tee harness, any valve can be fully tested on the bench.
The back panel provides connections for inputs and charging along with the magnetic RAM mount.
Heat Sink-
Absorbs heat
generated while driving
PWM Valves.
Input Connection-
Connect the Tester Tee
Harness here for In-Line or
Stand-alone tests.
1
RAM Mount
Attaches here with
Magnet.
Charger Connector

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Summary of Contents for Ag-Tester HT101V

  • Page 1 Resistance. The lower part of the HT101V is the diagnostic and valve control center. When used with the “In-Line”, Tester- Tee harness, the HT101V will monitor the supply and control voltages being provided by the display. Test terminals are built into the HT101V to allow metering connections to be made without disturbing the connectors and cables associated with the control console.

  • Page 2: Meter Functions

    Most GPS receivers send 5 volts to the antenna to operate an internal amplifier. Disconnect the cable from the gps antenna and re-install at COAX on the HT101V. When VOLTS is selected you should see 5 to 12 volts on the meter indicating a good connection from the antenna connection to the gps receiver.
  • Page 3 (4) possible connections. A four wire valve will have a ground, main power, and two control lines. The HT101V makes these connections available as Test Jacks and any voltage present on a line will light the associated LED.
  • Page 4 Types of valves to be tested The HT101V is designed to be compatible with “Any” valve on “Any” machine. Specific valve types require specific control voltages to operate correctly. The following explains the differences. It is important to know what type of valve you’re dealing with to insure the best level of diagnosis.
  • Page 5 Stand-alone testing is used as a method of testing and evaluating or “bench testing” a control valve “independent of the display”. The HT101V allows for full testing of any valve. Use the Tester Tee Harness and adapters to fit best with the valves you’re testing. Here we’re using the TT-AE27996 Stand-alone RAVEN harness.

  • Page 6: In-Line Testing

    Some Servo Valves respond to pulses from a PWM Drive more accurately than a standard variable voltage drive. The HT101V is wired so that the PWM Drive can be used with a Servo Valve. Dial the function switch to TEST SERVO. Be sure the SERVO DRIVE control is set to MINIMUM, COUNTER CLOCKWISE.

  • Page 7: Battery Care

    The charge indicator light turns RED when charging and when fully charged the light turns green. Batteries are replaced at Ag-Tester. Go to agtester.com for details.
  • Page 8 Stand-Alone Cables are also cabled for RAVEN. All the RAVEN valves will connect directly and adapters can be used to fit any other products. Stand-Alone cables allow for the Ag- Tester HT101V to provide power to the component being tested allowing it to be fully tested “on the bench”.

  • Page 9: Stand-Alone

    This is used for full system diagnostic operations where the full connection from the display to the sensor or valve is intact. Here, the system is left intact with the Ag-Tester Tool inserted in the line feeding the Valve or Sensor in question from the balance of the system.
  • Page 10 Tester-Tee Harnessing- Valve Harnesses as follow: In-Line Harness for Valves- HT101V Display Valve Ground- Black Ground- Black Signal to Close- Green Signal to Close- Green Signal to Open- Yellow Signal to Open- Yellow Power-Red Power- Red Tester Tester (+) Plus...
  • Page 11 Stand-Alone Harness for Valves- HT101V Valve Ground- Black Signal to Close- Green Signal to Open- Yellow Power-Red Tester Tester (+) Plus (-) Neg Power control control Power Drive Drive to from valve valve from to Valve Valve display drive drive...

  • Page 12: Warranty

    Office Phone: 419-667-4008 WARRANTY All Ag-Tester products are fully warrantied to be free from any problems for a period of ONE YEAR from the date purchased as an end user. Any defects whether caused by an electronic failure or some assembly issue will be repaired at no charge.

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