Vivax Metrotech 2012061803HE VM-550Tx User Manual N6N2012061803HE

Vivax-Metrotech (Shanghai) Ltd. VM-550Tx N6N2012061803HE

N6N2012061803HE_User manual

Depth Measurement / Frequency SelectionSensitivity Control (increase sensitivity)On/Off Control Long press to switch on/off. Short press to change speaker volume.Increment sensitivity up, or auto scale to 50% if off scale. When in frequency select menu use this button to scroll forwards through available frequencies.Short press to initiate depth measurement. Long press to enter frequency select menu then short press to exit menu.4231234VM-550/VM-560User Guide V1.0IntroductionThis guide describes the operation of the VM-550 and VM-560 pipe and cable locators. Both are general purpose locators used to detect buried pipe and cable services in a variety of situations.The operations of the two systems are very similar. The main difference is in the operational frequencies:• VM-550 Frequencies: 50 or 60Hz, 8 kHz, 83 kHz• VM-560 Frequencies: 50 or 60Hz, 8 kHz, 480 kHzThe VM-550/VM-560 is supplied with 1 watt transmitter with both direct connection and induction capabilities. An inductive clamp and LPC live separation filter are also available as optional accessories.To make a direct connection to a pipe or a de-energized cable conductor or cable sheath.To make a ground connection to complete a direct connection circuit.To make an inductive coupling connection to a live cable or pipe.Receiver Display Functions 1 Battery Level Indicator 2 Speaker Level Indicator 3 Percentage Signal Levels4 Selected Locate Frequency5 Signal Level Indicator 6 Sensitivity Setting Indicator Receiver Operational Controls 123456789ON/OFF (Long press until Power ON indicator is on, longpress again to turn off)Power ON Indicator Low Output Power SelectedHigh Output Power SelectedSpeakerFrequency SelectFrequency Selected IndicatorsBattery Cover Retaining ScrewsBattery Housing CoverTransmitter Operational Controls Accessories1234Direct Connection Leads Ground Stake Signal Clamp Power Mode OperationSwitch on the unit by pressing the ON/OFF pushbutton. Allow a few seconds to switch on.The frequency selected as shown on the display. If this is not the desired locate frequency (ie 50 or 60Hz) change as indicated below.NOTEThe battery condition as indicated on battery icon. Replace batteries if necessary. See Changing Batteries Section.Changing the Locate FrequencyPress and hold the depth measurement/frequency selection pushbutton until the frequency menu is entered. The display will show the present frequency selected in large numeric’s in the centre of the screen. Use the “+” or “–” pushbuttons to select the desired frequency. Press the depth measurement/frequency selection pushbutton to re-enter the locate screen.Locating a Cable in the Power (50/60Hz) Mode1. Hold the locator vertically in the area that is required to be searched. Press the “+” or “-” pushbuttons to set the gain so that the bar graph reads approximately 50%.2. Hold the locator in front of you in the orientation shown below. 3. Sweep the locator left to right along the suspected route of the cable. As the locator approaches the cable the meter reading will increase. Pinpoint the position by detecting the largest signal. Adjust the sensitivity of the locator by pressing the “+” or “-” pushbuttons to keep the signal on scale.4. To confirm the direction of the cable, rotate the locator until the largest signal is detected. The direction of the cable is then directly ahead.5. Continue to locate the cable along the route.6. Depth measurements are not possible in the power (50/60Hz) mode, if pressed by accident it will show N/A.WARNINGThe power mode is used to detect signals radiating from cables or services that are carrying a 50 or 60Hz load. It is possible for a cable to be live but not carry a load. In this case there may not be a signal to be detected.Similarly, if a cable is exactly balanced the resulting signal radiating from the cable may be zero and therefore not detectable.Do NOT use the VM-550/VM-560 to identify if cables are live. Always dig with caution.Active Cable and Pipe LocatingDetecting a cable or pipe can be achieved by applying a locate tone to a cable or pipe from a transmitter. This is called active locating.The locate tone can be applied by either.• Direct Connection• Induction Mode• Signal Clamp ModeDirect Connection ModeThis method involves making a direct connection to the Cable or Pipe.WARNINGDO NOT attempt to make a connection to a live conductor. Only make a connection to de-energized or dead cables. It is possible to connect to the sheath of active cables but this should only be attempted by qualified and authorized personnel.Method:Plug the direct connection leads to the transmitter. Connect the red lead to the cable or pipe and the black one to a suitable ground. Ideally this should be a ground stake placed at right angles to the probable route of the target line. If it is not possible to use a ground stake, connect the black lead to a grounded structure such as the rim of a manhole cover or other buried metallic structure. Try to avoid fencing as this will create interference from the return signal travelling along the fence.If necessary clean the connection point with a wire brush to ensure a good electrical connection.Select the desired frequency by pressing the “f” pushbutton. As a general rule the higher frequency will have a cleaner more stable reading and will jump insulation joints on pipes but has the disadvantage that it is more likely to jump to other utility nearby. The lower frequency is better for tracing a particular utility as it is more likely to keep to the utility line the transmitter is attached to. If in doubt, start with the lower frequency and switch to the higher one if it is not possible to detect a stable reading.The same applies to setting the signal level. A short press on the6183k123456To safely inject a trace tone to a live cable via a domestic mains socket, so that the cable can be traced from the premises to the connection in the street.LPC Separation Filter 89712 3 465Sensitivity Control (reduce sensitivity)Increment sensitivity down, or auto scale down to 50% if off scale. When in frequency select menu use this button to scroll backwards through available frequencies.1
5678ON/OFF pushbutton will alter the output from low to high. Always start with the low setting and switch to high if it is not possible to detect a stable reading on the receiver. Using the low setting will also prolong the battery life.If unsure of the quality of connection to the service, set the frequency of the receiver to match the transmitter, hold the receiver over the direct connection lead and remove and connect the red lead from the utility. There should be a great change in signal received. If not improve the grounding or improve the connection to the pipe or cable. A fast beeping sound indicate a good connection.To trace the cable use the same method as described in the Locating a Cable in the Power (50/60Hz) Mode Section.Depth Measurements (Available in 8.19 kHz mode only)To take a depth measurement pinpoint the position and direction as previously described. Now hold the locator vertically and in line with he cable or pipe. Now press the depth measurement/frequency selection button. There will be a short delay before a depth estimate will be displayed. NOTEThe depth measurement is an approximation. Depth indications can be effected by field distortion caused by adjacent utility lines or changes in direction and depth. Always use depth measurements as an aid to line verification but NEVER use them to decide if mechanical digging is safe. Always dig with care.An aid to determining if the depth is correct is to repeat a depth measurement with the locator a known distance (for example 1ft) above the ground and to note if the depth has increased by this amount. If it is different from what is expected treat the data as suspect.Induction ModeThe induction mode is useful in situations where access to a cable or pipe is not possible. Remove the direct connection leads so that the transmitter automatically sets itself into the induction mode. Place the transmitter over the suspected position of the target utility line as below. Switch on the transmitter and set the output to low output. Only switch to high if the signal received is too low. Only the high frequency is available in induction mode.Start locating the line a few paces from the transmitter. Starting too close will be difficult as the signal radiated through the air from the transmitter will be greater than that from the cable. Trace the cable in the normal way.Signal Clamp Mode1. Connect the signal clamp to the transmitter.2. Place the clamp around the cable to be energised. Ensure that clamping is done below the earthing point of the cable otherwise a signal will not be induced efficiently.3. Make sure the two halves of the clamp close properly. 4. Switch on the transmitter and follow the locating instructions as in Direct Connection Mode.NOTEUsing the clamp does NOT require a ground connection from the transmitter. However, the signal quality will be better if there is a ground at both ends of the cable.LPC Separation FilterThe LPC separation filter is used to safely inject a trace tone to a live cable via a domestic mains socket, so that the cable can be traced from the premises to the connection in the street. It is suitable for connecting to voltages between 100V AC and 250V AC.Method:1. Plug the LPC into the output socket of the transmitter.2. Identify a suitable main socket. If a switch is fitted to the socket, switch off.3. Plug in the LPC to the mains socket and then switch back on.4. Set the LPC rotary switch to match the two indicator lights.5. Set the transmitter to the frequency to be located.6. Locate the line as described in the section Direct Connection Mode.NOTEA transmitter ground connection is not required with this method as the ground is made within the mains socket.Changing BatteriesTransmitter1. A low battery is indicated by a flashing ON/OFF led.2. To replace the batteries unscrew the two retaining screws on the end of the transmitter. Remove the battery cover and take out the old batteries.3. Replace with four D type alkaline batteries.4. Always replace all the batteries. Having batteries with different charge may result in batteries being reverse polarised which may then leak or overheat.5. Replace the battery and hand tighten the retaining screws. Receiver1. A low battery is indicated by the icon of the receiver display.2. To replace the batteries unscrew the end cap on the handle end of the VM-540/VM-550.3. Remove and replace BOTH batteries with fresh 1.5V alkaline AA (LR6).4. Replace end cap. Service Center InformationIf the equipment does not function properly, replace the batteries as described above. If the equipment still malfunctions, contact one of the Vivax-Metrotech Customer Service departments, or call the factory for the nearest authorized Vivax-Metrotech repair station.Disclaimer: Product and accessory specification and availability information is subject to change without prior notice.2 feet 7 inches8.19k30 paces minimumUSAVivax-Metrotech Corp.3251 Olcott Street,Santa Clara, CA 95054, USATel: +1-289-846-3010Fax: +1-905-752-0214sales@vxmt.comwww.vivax-metrotech.comCanadianSales@vxmt.comwww.vivax-matrotech.comCanadaVivax Canada Inc.400 Esna Park Drive,Unit 17, Markham,Ontario, L3R 3K2, CanadaTel: +86-21-5187-3880Fax: +86-21-5168-5880info@leidi.cnwww.leidi.comChinaLeidi Utility Supply(Shanghai) Ltd.Tel: +49-9544-680Fax: +49-9544-2273service@sebakmt.comwww.sebakmt.comEuropeSebaKMT SebaDynatronic Mess-undOrtungstechnik GmbHDr.-Herbert-lann-Str. 6,96148 Baunach, GermanyT/Free: +1-800-446-3392Tel: +1-408-734-1400Fax: +1-408-734-1415AustralasiaSebaKMT AUSUnit 1, 176 South Creek Road,Cromer NSW 2009, Australiasales@sebakmtaus.comservice@sebakmtaus.comwww.sebakmtaus.comTel: +61-2-9972-9244Fax: +61-2-9972-9433Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operatethe equipment.Note

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