Rex Pipe & Cable Locators User guide
Im po rta nt No tic e Sc ho nste d t b e lie ve s the sta te me nts c o nta ine d he re in to b e a c c ura te a nd re lia b le ; ho we ve r, the ir a c c ura c y, re lia b ility, o r c o mp le te ne ss is no t g ua ra nte e d . Sc ho nste d t's o nly o b lig a tio n sha ll b e to re p a ir o r re p la c e a ny instrume nt p ro ve n to b e d e fe c tive within thre e ye a rs o f p urc ha se .
Table of Contents Chapter 1: Introduction & Operating Modes 1 Introduction ...................................................................................................................2 Passive 50/60 Hz .......................................................................................................... 2 Conductive ...................................................................................................................2 Inductive Clamp ..................................................
1 INTRODUCTION & OPERATING MODES
Introduction In general, pipe and cable locators can operate in a variety of modes and frequencies. The following is a brief description of the basic operating modes supported by the Rex Pipe and Cable locator. In addition, Rex offers advanced features to suit almost any type of locating challenge, while emphasizing portability, size, and convenience.
Inductive In the inductive mode, the transmitter imposes a signal of the selected frequency onto the pipe or cable to be traced. It does so by energizing an inductive antenna built into the case. The transmitter is placed on the ground in a direction perpendicular to the pipe or cable being traced. The inductive antenna then induces a current onto the pipe or cable. In this mode, it is not necessary to provide a return path for the induced current to the transmitter.
Operating Recommendations When using Rex, follow these tips and recommendations to improve and facilitate your locating experience: 1) Whenever possible, use the conductive mode. It provides the strongest and best coupled signal. 2) When operating in conductive mode: • Try to bury the ground stake on a line perpendicular to the utility to be traced. • Verify that a good circuit has been established by: − Checking the output current from the transmitter.
2 REX RECEIVER
Automatic and Manual Gain The Rex receiver has the ability to operate in an automatic or manual gain mode. In the automatic gain mode, the sensitivity of the receiver is adjusted automatically, based on the strength of the detected signal, to produce a relatively constant and strong signal strength indication. In the manual gain mode, the user can adjust the sensitivity up or down to suit different locating scenarios. Directional Indication The Rex receiver is equipped with directional indicators (arrows).
To measure depth, simply place the tip of the unit on the ground and press the DEPTH button when the signal strength is at a peak. The achievable depth depends on a number of factors, but typically it is possible to read depth up to 5 to 15 feet (1.5 to 4.2 m). Controls The Rex Receiver controls are designed to be intuitive and require a minimum of training for effective use. The receiver can easily be operated with one hand.
5 DEPTH - When the proper conditions to measure depth are present, pressing this switch will display the target's depth on the LCD (after a delay of 2 seconds). The depth will continue to be displayed on the LCD, along with the "depth symbol", for as long as the switch is depressed. If the switch is pressed and quickly released, the depth will show on the LCD momentarily. The Rex is factory set to display depth in feet and inches or in meters.
Each time the UP or the DOWN arrow is pressed, the gain is adjusted by 1/30th of the full scale range and the gain level, preceded with an “L”, is shown temporarily to the user on the main signal display. The bar graph will change with approximately 6 presses of the UP or DOWN arrow. The user may press and hold the UP and DOWN button to change the gain rapidly. • FREQUENCY/MODE INDICATOR – The upper left of the LCD consists of 4 icons: "512 Hz”, “33 kHz", "82 kHz", and "Passive Arrow".
• ALPHANUMERIC DISPLAY - The alphanumeric display is used to display signal strength and depth. The numeric display is also used for temporary indications of certain operating modes, frequencies, and other brief information messages, as noted throughout this manual. o Signal Strength - This is an indication of the relative signal level detected by the receiver and is a function of the gain setting. Good signal strength will typically be between 200 and 800.
Connectors and Accessories The receiver has a standard 3.5mm headphone jack that accepts any mono or stereo earphones or headphones. Schonstedt also supplies headphones as an optional accessory. The receiver automatically detects the insertion of the headphones or earphones and routes the audio signals to them, silencing the internal speaker. The receiver comes fitted with a rubber plug to protect it from water and dust ingress.
Specifications Operating Frequency: Active: Passive: Sonde: 512 Hz, 33 kHz and 82 kHz 50 or 60 Hz 512 Hz Battery: One 9V Alkaline Battery Battery Life: 12 hours (intermittent use) Audio Output: 10 - 1500 Hz (determined by signal strength) 0 - 70 db SPL (volume controlled) Weight (incl. battery): 2.8 lbs. (1.25 kg) Operating Temperature: -4°F to 140°F (-20°C to 70°C) Water and Dust Resistance Rated IP54 Overall Dimensions: Closed: 17.5” x 3” x 8.5” ( 44 cm x 7.6 cm x 21.5 cm) Extended: 27.
Regulatory Compliance and Declaration of Conformity FCC: ++++ This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
3 REX TRANSMITTER
Automatic and Manual Output Power The Rex transmitter delivers power to the "load" that it is connected to. In the conductive mode, the load is the circuit formed by the cable or pipe being traced, the soil return, and the ground stake. In the inductive clamp and inductive modes, the loads are the clamp and the antenna, respectively. The inductive clamp and inductive modes require the maximum power that the transmitter can deliver.
In the Measurement mode, the transmitter alternatively displays the DC voltage, AC voltage, and Line Impedance on the LCD; it will turn on an UP ARROW if any voltage exceeds 50 V. To exit the Measurement mode, press the Frequency or Output Power control. The transmitter will go back to the conductive mode. Controls The Rex Transmitter controls are designed to be intuitive and require a minimum of training for effective use. The transmitter controls are also large for ease of use when wearing gloves. 1.
Visual and Audible Indicators The information display areas for the transmitter are easy to understand. In addition, the transmitter has an audible indicator to provide feedback and warnings to the user in certain situations. All visual indicators for the transmitter are on the LCD display, which has four general areas to display information to the user: a battery indicator, a large 3-digit numeric display, a frequency display, a power level indicator, mode indicators, and several unit indicators.
• MODE INDICATOR – This area consists of arrow indicators on the bottom of the screen, which point to an icon on the label which indicates whether the transmitter is in conductive, clamp, or inductive mode. • UNITS INDICATORS - During normal operation, or when the Rex transmitter is measuring line voltage and impedance, it is necessary to display information to the user with the appropriate units.
ACCESSORIES - The standard accessories provided with the Rex transmitter are: conductive clips, the universal power supply with line cord, ground stake, a soft carry-all bag with space for the transmitter, the receiver. Many optional accessories are also available. The following list includes the most common ones. Please contact Schonstedt or your local dealer for details.
1. Remove the power connector from the charger, and reconnect it to start the charger. 2. If the transmitter is warm, move it to a conditioned space, and allow it to cool for several hours before attempting to charge again. 3. If the error message remains on after the steps above, contact Schonstedt Instrument Company for further instructions. Also, please refer to the Battery Replacement portion of this manual.
CAUTION When replacing the transmitter battery, only use Schonstedt batteries! To replace the battery, turn the transmitter off, remove the four screws on the front panel’s battery compartment and expose the battery by removing the cover. Gently flip the unit over to let the battery pack drop off into your hand and expose the connector to the main PC board. Reach into the compartment and unplug the connector to disconnect the existing battery (as shown in the below images).
Specifications Operating Frequency: 512 Hz, 33 kHz and 82 kHz Operating Modes: Conductive, all frequencies Inductive, 33 kHz and 82 kHz only Inductive Clamp (optional), 33 kHz and 82 kHz only Max. Output Power: (Conductive mode, @ 1000 Ω load) 512 Hz - 1/2, 1, 2 or 5 W 33 kHz - 1/2, 1, 2 or 5 W 82 kHz - 1/2 or 1 (FCC limited) Max. Output Voltage: 100 V RMS Resistance Meas. Range: 500 Ω to 5 MΩ Voltage Meas.
Regulatory Compliance and Declaration of Conformity FCC: ++++ This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
4 TECHNICAL SUPPORT/SERVICE INFORMATION
Schonstedt offers technical support and sales support. For any reason regarding usage and application, please contact our technical support team at 888-32-TRACE (888-328-7223). FO R SERVIC E O R REPAIR Ple a se ship unit to : Sc ho nste d t Instrume nt C o mp a ny 100 Ed mo nd Ro a d Ke a rne ysville , WV 25430 Attn: C usto me r Se rvic e De p t. Return instructions and return form are located online at: https://www.schonstedt.
5 WARRANTY
Schonstedt Instrument Company (Schonstedt) warrants each product of its manufacture to be free from defects in material and workmanship subject to the following terms and conditions. The warranty is effective for 3 years after the shipment by Schonstedt to the original purchaser. Please complete the warranty registration card online at www.schonstedt.com/welcome.
Schonstedt Instrument Company (Schonstedt) warrants each product of its manufacture to be free from defects in material and workmanship subject to the following terms and conditions. The warranty is effective for 3 years after the shipment by Schonstedt to the original purchaser. Please complete the warranty registration card online at www.schonstedt.com/welcome.
