Manual - Western Systems
Contents
1. DETECTOR Made in the USA by ATHENS TECHNICAL SPECIALISTS INC www atsi tester com Figure 1 LOOP Measures Re L and Q If Q gt 15 use Q push button to obtain actual value Q Measures high Q values when Q is gt 15 Used in SET FREQ mode to increase frequency by 1KHz Used in SET FREQ mode to decrease frequency by 1KHz POWER Turns unit On Off 6 SET FREQ Selects operating frequency to measure L amp Q AL Measures change of inductance DETECTOR Measures operating parameters of the loop system V Oscillating frequency and mode Input Color coded input connectors HILT 9000 Inductive Loop Tester Function Controls 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 If the battery is low a message Replace Battery will be displayed Press and hold the POWER push button during power up to display the serial number of the unit and the version of the firmware as show in Figure 2 Release a the push button to return to normal HILT operation HILT 9000 1234 Self test v 1 0 The unit can be turned off at any time by pressing the POWER button The2. tester shuts off automatically after 30 seconds of non use Figure 2 LOOP DETECTOR LOOP e Loop A ATTENTION A Disconnect the detector from the loop before running this test DO NOT switch to a different test while the measure ments are being generated for the current test Only after the results of the current test are displayed can a different test be performed Connect the test leads to the loop Press the LOOP push button to begin the test After the measurement is complete the tester displays the results as shown in Figure 3 on the next page Note that the frequency at which L and Q were measured is also displayed www atsi tester com The LOOP test can measure a maxi mum Q of 15 If Q is greater than 15 HILT the tester displays Q gt 15 To measure the actual value press the Q button on the keypad to run a separate Q test R 12 30 Q 12 1 L 89 2uH 50KHz The default frequency at which the LOOP DETECTOR LOOP and Q tests run is 50 KHz It can be changed to any value within the ee range from 20 KHz to 80 KHz with 1 KHz increment e Quality Q A ATTENTION A Disconnect the detector from the loop before running this test e DO NOT switch to a different test while the measure ments are being generated for the current test Only after the results of the current test are displayed can a different test be performed Connect the test leads to the loop This test requires sever
3. THE BATTERY COMPARTMENT Y WHILE THE HILT 9000 POWER IS ON The battery indicator in percentage format on the LCD indicates when the batteries in the HILT 9000 require replacement There are two 9V alkaline batteries in the HILT Recommended replace ment type is Alkaline IEC 6LF22 GLR61 or NEDA 16044 To replace the batteries you will need to open the battery cover on the backside of the tester Lay the tester face down on a flat table making sure that there is nothing underneath the tester that can accidentally turn the tester on Remove the two Phillips head screws that secure the battery cover The battery cover can then be removed and access to the batteries obtained Installa tion is the reverse of this procedure All other types of services needed for the HILT 9000 should only be performed by an ATSI factory technician Any attempt at servicing the tester yourself or by someone other than a ATSI technician will void the factory warranty See the Warranty statement at the end of this manual for full details 1 2 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 AL test A During Loop Q and AL 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 However with a scanning detector connected to the loop there are time intervals during which the loop does not hav
4. What you must do to return the tester for Warranty Repair Request a Return Merchandise Form by phone or by fax from our Service Department or complete the form on our website at www atsi tester com then return the tester along with the completed RM Form Return the tester postage or shipment pre paid to ATSI 8157 US Route 50 Athens OH 45701 740 592 2874 740 594 2875 Fax service atsi tester com Caution To protect yourself against in transit loss we recommend you insure your returned materials
5. can be off turned off at any time during or after a test 1 O 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 e DC resistance These parameters are affected by the type of pavement number of turns in the loop type of wire length and type of the lead in cable shape and dimension of the loop and presence of any objects near the loop A detector is connected to the loop and is used to measure the AC characteristics of the loop and change of those A part of the circuitry in the detector and the loop creates an oscillating circuit The oscillating frequency of this circuit depends on the parameters of the loop and the parameters of the detector When a vehicle or other metallic mass is located above the loop almost all of the characteristics except DC resistance Ro are altered This change causes the oscillating frequency to drift which in turn is detected by the detector Unfortunately the deterioration of the loop begins virtually from the moment of installation There appear to be two basic mecha nisms for loop degradation mechanical and chemical Under daily and seasonal temperature variations the pavement is constantly
6. HILT 9000 Handheld Inductive Loop Tester P Ss HILT R Q 1 89 uH 50KHz LOOP DETECTOR Q AL SET FREQ POWER Made in the USA by ATHENS TECHNICAL SPECIALIST S INC www atsi tester com es m J AT e User Manual ATHENS TECHNICAL SPECIALISTS INC LL July 2003 HILT 9000 Inductive Loop Tester Table of Contents Receiving Your Shipment te HR RUE E Ei 2 erc 2 iBis reeioj o ode TE 3 Overview of HILT 9000 Controls esee 5 Function Controls teo DERE EEEE SPP EE eins 5 POWE eene sse p usn niens occu ve nep RE 5 LOOP 5 o 6 Set Frequency ArrOWS esee eene treten tete tenente 7 AV r M M R 7 DOl6CtOr E EE 8 Function Controls Summary siasio neioii OKRENE e ton iid uj 9 Overview of Traffic Loop Detection Systems eess 9 Battery Replacement 23i ueteri reete n exei une Ee eue uin 11 Commonly Asked Questions esesseeee 12 Repair and Calibration eerte ete reete se egere ue pe eve nU E Ue Tess 13 Technical and Sales Assistance s eseesessessesresresrereesreeese 14 limited Warranty satasia a oisi iets 16 Warranty Repair ecetese texere sed pet sse sed ses ee eru dese RE nU 16 2 www a
7. age left blank 15 1 6 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 Purchaser s sole remedy is restoration of product operation ATSI accepts no liability for incidental or related expenses Under no circumstances will ATST s liability exceed the purchase price for items claimed to be defective This Limited Warranty does not extend to any Product that has been damaged or rendered defective a as a result of accident misuse or abuse b by modification of the product or 3 as a result of service by anyone other than ATSI EXCEPT AS EXPRESSLY SET FORTH IN THIS WARRANTY ATSI MAKES NO OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING ANY IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ATSI EXPRESSLY DISCLAIMS ALL WARRANTIES NOT STATED IN THIS LIMITED WARRANTY ANY IMPLIED WARRANTIES THAT MAY BE IMPOSED BY LAW ARE LIMITED TO THE TERMS OF THIS EXPRESS LIMITED WARRANTY YOU CAN NOW REGISTER ONLINE AT www atsi tester com Warranty Repair
8. al seconds to run during which the tester will measure Q at some arbitrary frequency and calculate Q for a user selected frequency If a user selected frequency is not entered prior to pressing Q the default 50KHz setting will be used Refer to the Set HILT Frequency section on page 7 for Q 12 1 Q40 5KHz full instructions to enter a different Q 14 9 50 OKHZ frequency Both Q results will be presented on the Meum IRETEGTOR display as shown in Figure 4 The Figure 4 calculated value is shown on the second line and indicated with an HILT 9000 Inductive Loop Tester SET FREQ e 4 l o Set Frequency 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 m FREQ push button to view the fre HILT quency adjustment display as show in Test frequency Figure 5 Use the f or 1 push button to F 50 KHz increase or decrease the frequency by 1KHz Pressing and holding f or 1 LOOP DETECTOR button will automatically increase decrease the value Figures e Change of Inductance A ATTENTION A Disconnect the detector from the loop before running this test Prior to measuring the operating parameters of the loop system press the DETECTOR push button and verify the tester displays the No Signal message Once this message is
9. e a signal applied If the verification occurs during that time interval the HILT will not see that there is another source of voltage connected to the loop and will begin the actual test Presence of another voltage on the loop will result with incorrect measurements or potentially damage the tester Q When I run a Q test why are there two results shown A The quality factor Q depends not only on the parameters of the loop but also the frequency of the measuring signal During a Q test the tester measures Q at a natural resonant frequency which depends not only on the parameters of the loop but also those of the tester and it will not be the same as the user selected frequency The Q measurement for the natural resonant frequency is displayed on the first line The Q for the user selected frequency is calculated and is displayed on the second line Q Is an adapter available to plug into the detector rack that will allow testing from the detector s connection points A Yes Call your distributor or the factory for pricing and availability HILT 9000 Inductive Loop Tester 13 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 Please contact the factory for price and scheduling infor
10. ected to Scan mode the detector 7 4V QF 34 1KHz Connect the test leads to the loop and press the DETECTOR push button During this test the measurements are constantly updated displaying the type of the operating mode peak to peak voltage and the operating frequency as quur show in Figure 8 If the signal is not present or signal is weak the tester LOOP DETECTOR Figure 8 No si gnal displays No Signal message as show 2s V F KHz in Figure 9 LOOP DETECTOR In this mode the the tester will shut Figure 9 off automatically after 45 seconds if no buttons are pressed HILT 9000 Inductive Loop Tester Function Controls Summary BUTTON DESCRIPTION COMMENTS Used to measure L Q and Ry The loop must be of the loop Q is measured up disconnected from the to 15 If Q gt 15 use Q button to system to run this test obtain the actual value of Q Used to measure high Q The loop must be values when Q is gt 15 disconnected from the system to run this test Used to measure change of The loop must be inductance disconnected from the system to run this test The loop must be parameters of the loop connected from the system V Oscillating system to run this test Frequency and Mode SET FREQ Used to select operating frequency to measure L and T and Used in SET FREQ mode to increase and decrease frequency in 1KHz steps POWER Used to turn the unit on and The tester
11. em operating mode frequency f and peak to peak voltage V Change of inductance of the loop AL L Where Q quality factor dimensionless L inductance uH R DC resistance Q Sop operating frequency KHz V peak to peak voltage V The tester offers a user selectable frequency at which Q and L are measured At power up the frequency is pre set to 5OKHz and can be easily changed from 20KHz to 80KHz range using the keypad An inductance change AL L can be measured to assess the real life behavior of the loop In this mode the tester displays the current value of the inductance change and the maximum observed change which can be reset by pressing a button on the keypad When the loop is connected to a detector the tester can measure the oscillating frequency and peak to peak voltage of the signal In addition the tester detects the operating mode and indicates if it is a continuous single channel or scanning for most multi channel detectors The tester has a 16 by 2 character LCD for presenting the measured values to the user The control keypad has 7 command buttons and one Power On Off button The tester requires two standard 9V alkaline batteries To extend the life of the batteries the tester shuts off automatically after 30 seconds of non use d www atsi tester com Overview of HILT 9000 Controls Ready Select Function
12. flexing To this may be added the pounding of heavy vehicles particularly at the approaches to signalized intersec tions where loops are often located These mechanical factors cause flexure of the wires comprising the loop especially at the juncture between pavement and berm leading initially to fine cracks in the insulation and perhaps ultimately to actual breakage of the wires After insulation failure occurs fine cracks or breakage there is a path for water intrusion While water itself is a poor conductor its conductivity is greatly increased by the highly ionic de icing salts which saturate the berm and all cracks and fissures of the pavement Aside from the ground leakage which results these highly active solutions can actually erode the copper conductors by displacement aided by electroly sis of even the small potentials of the wire to ground Lead in wires are also vulnerable especially on long pulls through conduit because of the high probability of minor insulation failures due to chafing and stretching during installation HILT 9000 Inductive Loop Tester 11 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 Battery replacement NEVER OPEN
13. mation on this service Request a Return Merchandise Form by phone or by fax from our Service Department or complete the form on our website at www atsi tester com then return the tester along with the completed RM Form Return the tester postage or shipment pre paid to ATSI 8157 US Route 50 Athens OH 45701 740 592 2874 740 594 2875 Fax service atsi tester com Caution To protect yourself against in transit loss we recom mend you insure your returned materials The HILT 9000 is sold with a one year limited warranty to the original purchaser as defined by the limited warranty on the inside back cover of this manual No other warranties expressed or implied apply to the HILT 9000 or associated components After the first year ATSI will continue to provide repairs to the tester on a parts plus labor basis A phone call describing the problem may allow ATSI to make a nonbinding estimate of repair costs but the surest approach is to send back the tester for a comprehensive evaluation and a binding repair estimate 14 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 serviceQatsi tester com NOTES HILT 9000 Inductive Loop Tester This p
14. received the detector can be reconnected to the loop In this mode the tester simulates a detector by measuring a relative change of the inductance and displaying the results Connect the test leads to the loop and vM M M press AL button on the keypad The HILT display will appear as shown in Figure dL L 0 127 6 The top line indicates the current max 3 378 change of the inductance and the bottom line indicates the maximum Loop DETECTOR recorded change of inductance To reset the maximum value press the AL Figure 6 button www atsi tester com HILT If there is bad connection the tester displays a message as shown in Figure 7 Make sure that the test leads are dL L properly connected If the leads are No loop found connected to the loop and the message is still present it means that Q of the LOOP DETECTOR loop is too low to generate the oscilla tion or the inductance is out of range This can be verified by performing the LOOP test Figure 7 In this mode the the tester will shut off automatically after 45 seconds if no buttons are pressed DETECTOR e Detector A ATTENTION A Verify the Loop is connected to detection system before running this test Disconnect the detector from the loop before running a LOOP Q or AL test The purpose of this test is to measure the operating parameters of the HILT working loop while it is conn
15. tsi tester com 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 e 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 Notify your distributor or factory of any missing items If the equipment appears to be damaged file a claim immediately with the carrier and notify your the factory at once giving a detailed description of any damage Save the damaged packing container to substantiate your claim Packaging The HILT 9000 Inductive Loop Tester is shipped with a hard carrying case one set of test leads with clips two 9V batteries installed and a user manual Depending on whether you purchased the HILT 9000 only or the complete Loop Test Kit you may have additional items included 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 The following tests can be run to verify the condition of the loop R L and Q of the loop Operating parameters of the loop syst
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