Summary of Contents for ATSI Handheld Inductive Loop Tester HILT 9000
- Page 1 HILT 9000 Handheld Inductive Loop Tester R=12.3 Q=12.1 L=89.2µH 50KHz User Manual July 2003...
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Page 2: Table Of Contents
HILT 9000 - Inductive Loop Tester Table of Contents Receiving Your Shipment ... 2 Packaging ... 2 Description ... 3 Overview of HILT 9000 Controls ... 5 Function Controls ... 5 Power ... 5 Loop ... 5 Q ... 6 Set Frequency, Arrows ... -
Page 3: Receiving Your Shipment
Warnings These safety warning are provided to ensure the safety of personnel and proper operation of the tester. • The tester must not be operated beyond its specified operating range. • Safety is the responsibility of the operator. Receiving your Shipment Upon receiving your shipment, be sure that the contents are consistent with the packing list. -
Page 4: General Description
HILT 9000 - Inductive Loop Tester General Description The HILT-9000 is designed to measure characteristics of an inductive loop at different frequencies; measure working parameters of the loop system; as well as simulate the detector by measuring the change of inductance. The measurement modes can be easily switched by pressing corresponding buttons on the keypad. -
Page 5: Overview Of Hilt 9000 Controls
Overview of HILT 9000 Controls 1. LOOP: Measures R Q. If Q>15, use Q push- button to obtain actual value. 2. Q: Measures high Q values (when Q is >15). 3. Used in SET FREQ mode to increase frequency by 1KHz. 4. -
Page 6: Function Controls
HILT 9000 - Inductive Loop Tester Function Controls Power Press the POWER push-button to turn the tester on and off. The tester performs an initial self-test to verify that the internal circuit is working. After the self-test is complete, the tester shows the current battery level and the message: Ready: Select Function. - Page 7 The LOOP test can measure a maxi- mum Q of 15. If Q is greater than 15 the tester displays Q>15. To measure the actual value, press the Q button on the keypad to run a separate Q test. The default frequency at which the LOOP and Q tests run is 50 KHz.
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Page 8: Set Frequency, Arrows
HILT 9000 - Inductive Loop Tester When the tester is powered, the test frequency is automatically set to 50 KHz. The frequency can be changed to any value between 20 KHz and 80 KHz with 1 KHz resolution. To set a different frequency press the SET FREQ push-button to view the fre- quency adjustment display as show in... -
Page 9: Detector
If there is bad connection, the tester displays a message as shown in Figure 7. Make sure that the test leads are properly connected. If the leads are connected to the loop and the message is still present, it means that Q of the loop is too low to generate the oscilla- tion or the inductance is out of range. -
Page 10: Function Controls Summary
HILT 9000 - Inductive Loop Tester Function Controls Summary BUTTON DESCRIPTION LOOP Used to measure L, Q, and R of the loop. Q is measured up to 15. If Q>15, use Q button to obtain the actual value of Q Used to measure high Q values (when Q is >15) Used to measure change of... -
Page 11: Overview Of Traffic Loop Detection Systems
www.atsi-tester.com Overview of Traffic Loop Detection Systems The inductive loop represents the most commonly used method to detect vehicles. The inductive loop is simply a coil of wires embedded into the pavement and can be characterized by several parameters, L (inductance), Q (quality factor), R (active resis- tance, measured using AC signal), and R (DC resistance). -
Page 12: Battery Replacement
HILT 9000 - Inductive Loop Tester To guarantee a reliable oscillation in the loop system the quality factor (Q) of the loop with the lead-in wires should be above some value, determined by the amplifiers inside the detector. Deterio- ration of the loop and lead-in wires reduces Q and eventually prevents the system from oscillating even with a known good detector. -
Page 13: Commonly Asked Questions
www.atsi-tester.com Commonly Asked Questions Q. Why do I have to disconnect the detector from the loop before running a Loop, Q, or L test? A. During Loop, Q, and L test, the tester is applying its own signal to the loop. The tester verifies there is no signal on the loop before running these tests. -
Page 14: Repair And Calibration
HILT 9000 - Inductive Loop Tester Repair and Calibration To ensure that your instrument meets factory specifications, we recommend that it be returned to our factory at one-year intervals for calibration service. In addition to calibration of the test parameters, this service includes replacement of batteries and firmware updates. -
Page 15: Technical And Sales Assistance
www.atsi-tester.com Technical and Sales Assistance If you are experiencing any technical problems, or require any assistance with the proper operation or application of your tester, please call, fax, or e-mail our technical support staff: ATSI 8157 US Route 50 • Athens, OH 45701 (740) 592-2984 (740) 594-2875 - Fax service@atsi-tester.com... - Page 16 HILT 9000 - Inductive Loop Tester -- This page left blank --...
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Page 17: Limited Warranty
www.atsi-tester.com Limited Warranty The HILT 9000 (“Product”), distributed by Athens Technical Specialists, Inc. (ATSI), is warranted to the original purchaser (“Purchaser”) to be free of defects in materials and workmanship for a period of one year from the purchase date stated on the invoice. Within this period, in the event of a defect, malfunction, or other failure of the product while in the custody of the purchaser, ATSI will remedy the defect or cause of failure without charge to the Purchaser.
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