FUNCTION The Sure-Lock® is a state-of-the-art, multi-frequency cable and pipe locator system designed to provide the operator the capability to accurately and efficiently locate underground utilities. The instrument’s dual microcomputers, fixed frequencies, automatic loading feature, and outstanding transmitter power output make it especially effective for tracing a variety of conductors and for those situations where a radio frequency locator increases the likelihood of success.
CHAPTER I GENERAL DESCRIPTION DESCRIPTION OF SYSTEM COMPONENTS (See Figure 1-1) Transmitter The Sure-Lock® multi-frequency transmitter combines numerous automatic performance and self-monitoring features and includes a sealed, rechargeable battery to support its high power capabilities. It is housed in a durable ABS plastic case.
Coupler Clamp (Optional) An alternate direct method of energizing the conductor is with a coupler clamp. This device can be used with the transmitter to apply the signal to the conductor and a second clamp can be used with the receiver for very specific identification of conductors when they are selectively energized at the transmitter location.
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Figure 1-1 (System Components) A. Transmitter G. Grounding Plate B. Receiver H. Grounding Spike C. Case I. Flexicoupler 10” ID (Optional) D. Manual J. Conductive Cable E. Coupler Clamp 4” ID (Optional) K. Conductive Cable with Popper Clip F. Vehicle Charger (Optional) L.
THE SURE-LOCK TRANSMITTER (Figure 1-2) Specifications 1. OUTPUT FREQUENCIES: Frequencies are selectable combinations of 8.1 kHz, 81 kHz, and 480 kHz, according to model. 2. OUTPUT JACKS: Multi-jacking. Single and mixed frequencies available on individual output jacks. 3. OUTPUT MODE: Conductive and/or inductive with automatic load match- ing.
14. DIMENSIONS: 9 1/4” L x 5 1/2” W x 6” D (23.5 cm L x 14 cm W x 15.2 cm D), typical. 15. WEIGHT: 8 lbs. (3.6 kg), typical. 16. CONSTRUCTION: Weather resistant ABS housing meets NEMA 3S and IP 54.
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Figure 1-2 (Transmitter) A. Battery Charger Jack G. Display B. Safety Ground Lug w/Nut H. Conductor Direction Arrow C. Test Port Connector I. On-Off/Power Level Switch D. 8.1K Output Jack J. Frequency Select Switch E. 81K/480K Output Jack K. Battery Status Indicator F.
WARNING! SAFETY FIRST! Check for and turn off all power sources before connecting the trans- mitter directly to otherwise power carrying cables. Direct connection must NOT be to live 50/60 hertz power sources up to 240 VAC!! The power must be OFF!! THE SURE-LOCK RECEIVER (Figure 1-4) Specifications...
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Figure 1-4 (Receiver) A. Signal Power Indicator (SPI) B. Left-Right Indicator C. Battery Status Indicator D. Lock Indicator E. On-Off/Volume Switch F. Bubble Level G. Frequency Select Switch H. Estimated/Calculated Depth Indicator I. Volume Level Indicator...
Controls The receiver has several unique features, controls, and indicators with which the operator must become familiar (Figure 1-4). 1. DISPLAY: This display provides the operator with information concerning the location and depth of the conductor being traced. A variety of informa- tion is displayed.
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Lock Indicator - The LOCK indicator is a unique feature of Sure- Lock. When the LOCK indicator appears on the display, the receiver is locked to the signal being generated by the transmitter. This indicator assures the operator of adequate signal strength for measurements on the conductor.
of the operator. The second one is higher in pitch and corresponds to the conductor being to the right of the operator. When the receiver is positioned directly over the conductor, the speaker will null (produce no sound). Additional Connectors Figure 1-5 (Receiver - Additional Connectors) A.
CHAPTER II GENERAL OPERATING PROCEDURES OPERATING PROCEDURES This portion of the manual is broken down into the TRANSMITTER and RE- CEIVER sections. The Sure-Lock works as an integrated system. In order to understand this system, the operator must understand the importance and proper use of each part of the system.
1. Inductive or Indirect Connect 2. Conductive or Direct Connect 3. Coupler Clamp (Models 91, 58 and Flexible Clamp) 4. Conductive/ Inductive Mix 5. Dual Jacking Transmitter - Inductive Mode The inductive mode of operation is the easiest and simplest mode of using the transmitter as no direct access to the conductor is needed.
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Figure 2-1 (Transmitter properly aligned with the conductor) One of the pitfalls the operator must recognize is that when the transmitter is functioning in the inductive mode, other conductors in the area may also be energized. When the transmitter is functioning in this application, it is energizing the conductor with an electromagnetic signal.
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Figure 2-2 (Transmitter positioned on its end directly over the interfering conductor. This position will energize the target conductor and apply minimum signal to the interfering structure) Another common mistake that must be understood and avoided in the indirect mode of operation is AIR COUPLING. As was previously mentioned, the signal is being radiated around the transmitter.
Conductor Figure 2-3 (Transmitter positioned on its end for closer tracing applications. This set-up will reduce the air coupling distance) Two Operator Sweep - Inductive Mode Another method of locating a conductor inductively is by means of the two operator sweep. This method is generally used when no starting or ending point is known for a given conductor.
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Figure 2-4 (Operators properly positioned to begin the two operator sweep) Figure 2-5 (Two operator sweep. The operators have energized and located the conductor)
Conductive (Direct Connect) Mode Whenever possible, the conductive method is preferred for energizing the con- ductor. By using a direct hookup, the operator can help eliminate locating mis- takes often associated with the inductive method, i.e., energizing other structures and air coupling. By using a direct energizing method, the operator helps isolate the target connec- tor from other conductors in the area and will generally receive a better signal with which to conduct the locate.
must be aware at all times of where the grounding cables run and what is used as a ground. The cables are carrying the full signal current, and, if the operator should ground over the top of or close to another conductor, the other conductor may be energize and jeopardize the locate (Figure 2-6).
**NOTE** THE TRANSMITTER PRIOR TO ATTACHING THE DIRECT CONNEC- TIONS (TWO GROUNDING CABLES) MUST BE SET IN THE ALL OUT- PUT FREQUENCY MODE SO THAT THE OPERATOR WILL BE ABLE TO SWITCH BACK AND FORTH BETWEEN THE 8.1 AND 81 kHz RANGES/ FREQUENCIES.
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1. INSTRUCTIONS FOR SINGLE COUPLER CLAMP USE: Before using the coupler clamp, refer to the coupler clamp applications section which starts on the next page. Plug the coupler clamp into the appropriate output jack on the transmit- ter. Each accessory is color coded and corresponds with its appropri- ate color coded input jack on the transmitter.
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allow the signal to propagate. In such situations, this conductor loop must be closed. The coupler clamp comes equipped with a bridging cable which can be used for this purpose. This cable is used to “bridge” the break in continuity. The cable can be attached to bridge an insulated coupling or insulated flange such as might occur on a cathodically pro- tected gas line with the insulator at the meter set (Figure 2-7).
(Correct - Grounding attachment allows signal (Correct. - The coupler clamp jaws are closed to flow) around the conductor. The conductor is energized) (Incorrect - Terminated end (open circuit). The (Incorrect - The coupler clamp jaws are signal will not flow) clamped to the conductor.
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ONCE THE CONDUCTOR IS PROPERLY ENERGIZED: Turn the receiver on and select the appropriate frequency matching that on the transmitter. Verify the battery capacity on the receiver is sufficient for the intended operational time. The battery test indication will read in 20% incre- ments of available voltage in the batteries.
When the operator has pinpointed the exact location of the conductor (using the above indicators) and the receiver is positioned directly above the conductor, the following will occur: The LOCK indicator will remain active on the LCD display. The left-right arrows and segmented bar graph will disappear from the display.
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**NOTE** THIS CONDITION MAY BE EVALUATED USING TWO METHODS. ONE METHOD IS BY PIVOTING THE RECEIVER 180 DEGREES WHICH MAY PRODUCE DEPTH READING WHICH DIFFER BY 10%. SUCH DIFFERENCES UP TO 15-20% MAY BE AVERAGED AND WHICH CAN BE THE RESULT OF A TILTED CONDUCTOR WHICH OCCURS NATURALLY WHERE A FORWARD OR RE- VERSE GRADE EXISTS.
CHAPTER III MAINTENANCE BATTERY CHARGING AND REPLACEMENT INSTRUCTIONS Low Frequency Transmitters The Sure-Lock low frequency transmitters are equipped with a re- chargeable, 6 VDC, maintenance free, fully sealed lead-acid battery. The instrument includes a convenient 120 VAC wall mount charger which is capable of fully recharg- ing the transmitter battery overnight with no danger of overcharging if left on continuously.
b. Remove the six exhausted batteries by depressing and lifting the positive ends of the batteries (opposite the spring ends) to avoid damaging the springs. Install the six new batteries by first observing the correct polarity and inserting the negative ends first to compress the springs. Push the batteries into place.
It is suggested that when the Sure-Lock is not in use, it should be kept in its carrying case and stored in a cool, dry area. If left in a vehicle, avoid exposure to extremes in weather conditions. Avoid storage in an area where direct sunlight shines on the display as this may discolor the LCD over time.
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Obviously, we cannot discuss every application of the Sure-Lock in this manual. We at Heath Consultants Incorporated suggest you become familiar with the Sure-Lock by practicing with it at a known location of an underground pipe or cable. Practice using the transmitter in both the inductive and conductive modes of operation.
Heath Consultants warranty repair loca- tion Battery and damage from battery leakage and all expendable items such as plunger bar rods are excluded from this warranty.
RETURN AUTHORIZATION (RA) The following suggestions will expedite the repair of your instrument: 1. Contact Heath Customer Service at 1-800-432-8487 for a RA #. 2. Package carefully, using the original shipping carton and cushions if available, and return all components. Specify your complete shipping and billing addresses.
LOCATIONS CORPORATE HEADQUARTERS Heath Consultants Incorporated 9030 Monroe Road Houston, Texas 77061 Phone: (713) 844-1300 Fax: (713) 844-1309 MANUFACTURING AND WARRANTY SERVICE CENTERS Heath Consultants Factory Service Center 9030 Monroe Road Houston, Texas 77061 Phone: (713) 844-1350 Fax: (713) 844-1398...
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Heath Consultants Incorporated operates under a continual product improvement program and reserves the right to make improvements and/or changes without prior notification. Heath Consultants Incorporated Houston, TX 713-844-1300 Fax: 713-844-1309 1-800-HEATH-US Heath...Safety, Leadership, Innovation, Performance Then, Now and Tomorrow www.heathus.com...
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