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SVM10 Manual


The SVM-10 Scanner is easy-to-use, true RMS, micro-computer-based voltage recording device that produce accurate readings and professional reports. These scanners can help you resolve customer stray voltage complaints, conduct long-term voltage surveys, and detect voltage variations as brief as one cycle. The Scanner will not disrupt normal power supply; rather, it uses a minimal amount of voltage from one 120 vac outlet. Each Scanner gathers and stores stripchart data, recording the average, minimum and maximum readings for a selected interval with one-cycle resolution. Even events lasting less than one cycle are revealed in WinScan reports if the Scanner is configured to capture the information. Installing the Scanner is relatively simple, although using the unit requires the same attention to safety as working with any other high-voltage device. Once the unit has been installed and the data you need have been recorded, the data can be downloaded using either a modem (if your Scanner is so equipped) or serial cable. Real-time data can be checked using the keypad and liquid crystal display (LCD) on the unit’s front. An optional Palm® interface is also available for viewing real time data from the unit. Please refer to the PalmView manual for further information. You can then view and analyze the data using the WinScan software. With the software you can create an array of graphs and reports, each of which provides you with useful, clearly presented power data. SVM-10 Manual 1.2.2 Inputs Direct hookups are fed into 4 voltage, 0-10vac inputs. Four direct inputs are available to be recorded and used with reports and strip charts. To record an input, the input must be selected as a strip chart in WinScan. 1.2.3 Instrument Size The Scanner is contained in a standard 6.5 inch (165.1mm) wide x 6.5 inch (165.1mm) high x 4.25 inch (107.95mm) deep NEMA 4x lockable case. 1.2.4 System Description The Scanner is a system designed to measure and record AC Voltage parameters using state of the art digital technology. Signal inputs from AC power connections are monitored by the system. No pen, ink or paper are required; a graphics display shows the information. The unit can also be used with PalmView software running on a Palm® Personal Digital Assistant (PDA) for real time viewing of waveforms, harmonic bar graphs, vectors, as well as numeric values. A. Screens and Displays Screen display styles are available to present data in a familiar format. User instruction and data entry screens feature easy to use menus, with easy to understand terms. Operating display screens show information in a logical and easy-to-read format. B. Day-To-Day Use Day-to-day operating measurements are stored and recalled instantly. Up to two MB of standard internal memory allows data to be efficiently and economically stored and retrieved. C. Configuration WinScan software allows the user to program the unit quickly and efficiently using an IBM Windows based compatible PC. Programming can also be done using PalmScan Software running on a Palm® PDA. It’s graphical touch screen interface provides straight forward, user friendly configuration. Strip charts, and Event parameters can be easily programmed. Other parameters such as Scales, and engineering units are also easy to program. SVM-10 Manual D. Applications A Scanner may be configured by you to record and monitor almost any voltage configuration. Typical measurement applications include, but are not limited to: Voltage Levels Harmonics to the 51st E. System Technology This Power Scanner is a state of the art system, designed around a microprocessor, with an executable program stored in memory. The memory is used for data and setup storage. 1.2.5 Memory Electrically Erasable Programmable Read Only Memory (EEPROM) eliminates the need for a battery back-up. Programming is stored in EEPROM. In the event of a power loss or system reset, the programming will be protected. 1.2.6 Clock The Time-of-Day clock will be maintained indefinitely after loss of line power by an internal Lithium battery. 1.2.7 Scanner Construction The Power Scanner features modular construction. All printed circuits boards are conveniently accessible for fast and simple troubleshooting and/or removal via a lift-out chassis. The lift-out chassis also facilitates easily changing the LCD. All viewing controls and indicators are located on the front panel. Servicing should only be done by an authorized service center of PMI. The PC boards are conformal coated and high voltage is present, servicing by unauthorized personnel can result in product or bodily damage. 1.2.8 Communications The standard RS232 port allows you to plug the Scanner into your computer and download the data from memory. An AC Adapter is also supplied that you can plug into the 9 pin D shell that will power the unit for programming or downloads. This eliminates the need to have AC voltage SVM-10 Manual supplied directly to the voltage leads. 1.3 SUPPLIED EQUIPMENT 1.3.1 Equipment Listing The following items are supplied with your Scanner: the SVM-10 Scanner, CD Containing WinScan Software This manual a WinScan Manual Sample files a serial communications cable • a 12-volt power adapter wall transformer and cord. If any of these items are missing, call PMI immediately. The package may include these optional items: • a modem cable (if your unit is equipped with a modem). 1.4 ACCESSORIES 1.4.1 General Additional functions and capabilities can be added to the Scanner as accessories. These options are briefly described in the following paragraphs. 1.4.4 Adapters If you have an older PMI unit we have a wide range of adapters available so you can use your existing serial cables with your new unit(s). 1.4.5 Cases all in the same container. See figure 1-6. 1.4.6 Spare Parts List SVM-10 Manual SVM-10 Series (*R-models only) SVM-10 Manual PMI#XXXXXXX Serial Adapter PMI#30550106 Wall Transformer *Modem Cable PMI#31100008 PMI#20506001 Figure 1-6: Cases SVM-10 Comm. Cable PMI#20506002 1.5 SPECIFICATIONS 1.5.1 General The SVM-10 Scanner specifications is shown in Table 1-1. Table 1-1 SVM-10 Specifications SVM-10 Scanner Specifications Channel 4 500 Ohms Input Information Storage Memory AC Voltage 0 to 10 VAC RAM 128K (battery-backed) 122,800 all channels Sample rate: samples per second FLASH EPROM 512K to 2,048K 15,360 per channel (256/cycle) DSP Waveform RAM up to 256K TOTAL MEMORY 1.1 million readings Channels Capacity4 voltage Summary data Over 1 year Event data 500 records RMS Voltage (Volts) Measured Qualities Significant change data 500 records Stripcharts 4 hours to over 1 yr. Note: All quantities are measured for each cycle. Voltage Retention time > 5 years (-20°F to 135°F) Accuracy/Resolution CommunicationsAccuracy Percent of full scale LocalVoltage 0.33 % Type Serial Cable Standards RS232 Compatible Data rate 1,200 to 38,400 baud Voltage 0.01 V / 0.001 V internal Modem (optional): 14.4 kbps Input Impedance Channels 1,2,3 12kOhms Resolution: Displayed/Internal Local Output SVM-10 Manual Type Wide-temperature LCD Size 4 lines by 20 characters Interface Menu-driven SVM-10 Specifications Continued.. Controls Stripchart settings Significant change Battery voltage check Keypad Power Requirements monitoring load 1 second to 4 hours 1V to 8 V, in 1V steps Automatic 4-key membrane < 1.5 Watts Environmental Operating temperature Shock Vibration Physical Dimensions Size Weight Case Power Fail Operation -20°F to 135°F 60Hz to 2KHz, acceleration 25G 10Hz to 60Hz, amplitude 1.8mm 6.5” x 6.5” x 4.25” 5.0 lbs. NEMA 4X The device operates with no input voltage for more than 30 minutes. This allows it to measure down to 0 volts on all channels during power outage periods. Harmonics (optional) Voltage Measures: Magnitude Phase THD Waveform capture: Measures to the 51st Triggered Implementation of new developments and product improvements may result in specification changes in this document SVM-10 Manual 19 SVM-10 Manual Connection Information Chapter 2 2.1 INTRODUCTION 2.1.1 General This chapter provides information and procedures for connection of the Scanner. Included are handling procedures, installation and wiring specifications, and instructions for both standard and optional equipment. 2.1.2 Manual Updates This manual may periodically be up-dated with addendums that could affect the connection information contained in this section. Review each addendum, if any, in the front of this manual and note changes that pertain to this section. 2.2 EQUIPMENT HANDLING 2.2.1 Initial Inspection Exercise care when unpacking instruments from the shipping cartons. The instruments are packed in a shock-resistant foam retainer to prevent damage during normal transit. If damage to the shipping carton is evident, ask the carrier s representative to be present when the instrument is unpacked and refer to Limited Warranty Statement, Appendix A. 2.2.2 Unpacking Procedure Perform the following steps to unpack your power analyzer. Remove the foam retainer and instrument from the shipping carton. Carefully remove the instrument from the foam retainer. 20 SVM-10 Manual A. Detected Damage If damage is detected after unpacking the instrument, re-pack the instrument and return it to the factory as described in the following paragraph. 2.2.3 Equipment Return Before returning a damaged or malfunctioning instrument to the factory for repairs, a Return Authorization Number must be obtained from the factory. A. Return Authorization and Required Information If the instrument is to be returned for repairs, refer to Appendix B, "Return Authorization", for complete instructions on returning instrumentation. 2.2.4 Storage For prolonged storage before installation, re-pack the Scanner in the shipping container. Cushion the Scanner with foam molding or equivalent and store in a cool, dry area. We do not recommend storage of the Scanner for more than one year. If longer storage time is required, contact the factory for additional storage information. See Table 2-1. Table 2-1: Environmental Precautions ENVIRONMENTAL PRECAUTIONS For optimum performance, observe the following precautions when selecting a storing environment for the power quality analyzer. Avoid direct sunlight and high temperature. Operating temperature must be within -20°F to 135°F (-29 to 57°C). Avoid sudden temperature swings of 10°C or more. Avoid locations susceptible to vibration, shock, static electricity, high magnetic, electro-magnetic, or radiation fields. Avoid extremely dusty, dirty, or corrosive gas environments. Maintain adequate air circulation paths to ensure proper cooling of the unit. Ambient operating temperature should not exceed 135°F (57°C). Detailed Specifications are included in Chapter 1, Table 1-1,2,3. 21 SVM-10 Manual 2.3 WIRING SPECIFICATIONS AND PROCEDURES 2.3.1 Power Requirements The power analyzer operates on external 120Vac power with to the line cord. A. Scanner Operating Power Connection Power connections to the Scanner are made by connecting line cord to a 120Vac outlet. This will automatically charge the batteries and power up the Scanner. B. Batteries and power The Scanner, when installed, powers itself from the line cord. It requires less than 2.5 watts. This means the Scanner does not contain large internal batteries that must be recharged or replaced; the Scanner can be retrieved from the field, downloaded, and reinstalled elsewhere minutes later. A small, coin-shaped lithium battery takes care of the Scanner’s minimal power needs while the Scanner is not connected to a power source. This battery never needs recharging and only needs replacing every five years. With this battery intact, the Scanner can literally sit on a shelf for up to five years after being initialized and still be ready for installation. Its memory can also hold recorded data for up to five years. A 12-volt power adapter is provided to power the Scanner during downloads in the office or in the field if the Scanner has been disconnected from the line cord voltage. 2.3.2 Installing the Scanner This chapter explains the physical installation of the SVM-10 Scanner, and shows how certain settings may be altered using the Scanner keypad. Installing the Scanner is not difficult for a professional familiar with similar equipment, although the same care used required when working with any high-voltage equipment must be taken to 22

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