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Vemco VR60 Hardware Manual

Summary of VR60

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    Vemco vr60 receiver hardware manual 12-12-2011 copyright © 2011 by vemco a division of amirix systems inc..

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    Amirix systems inc. Warranty and disclaimer warranty amirix systems inc., doing business under its trade name vemco, provides a one (1) year warranty period for the product from date of shipment. Vemco warrants that on the date of shipment all products manufactured by vemco are free from defects in ...

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    Table of contents introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 about vemco . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 system ...

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    Log setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 decoding and logging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 retrieve data from memory . . ....

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    1 introduction about vemco vemco, a division of amirix systems incorporated, is a leader in the design and manufacture of oceanographic research tools and systems since 1979. Located on the shores of shad bay, nova scotia, vemco's product line ranges from miniature acoustic transmitters and data log...

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    2 hardware vr60 receiver power switch and fuses the power switch has four positions, off, on, chg (charge) and aux. The vr60 receiver is powered with a 12-15 vdc power supply. If the internal battery (option 02) is installed in the vr60 receiver, the on position will power the receiver from the inte...

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    3 signal level a signal level meter, located on the front panel, indicates the amplitude of each received pulse. This indicator is used with the manual gain control and a directional hydrophone for tracking and locating applications. When the indicator is at full scale, the manual gain should be red...

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    4 installation inspection unpack and inspect the equipment as soon as possible. Check that all parts and accessories are included. Determine if any damage was incurred during shipment and, if so, report to the transportation company immediately as it is their responsibility. Installation secure the ...

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    5 available vr60 receiver options there are seven options available with the vr60 receiver. These options are listed below, and are explained in detail in the sections to follow. Option 01: option 02: option 03b: option 04: option 07: option 08: internal telemetry decoder and display. Internal recha...

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    6 hardware features (option 01) keypad the keypad is used to control the functions of the decoder/display unit (option 01) and to enter data during the setup procedure. Ten digit keys (0 to 9) and a minus sign provide for numeric data entry. The enter/yes key is used to enter the numeric data, or to...

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    7 external control the decoder/display unit (option 01) may be controlled from an external terminal or computer when connected to the vr60 receiver through a rs232 serial cable. To do so, turn on power and respond to the “keypad (y/n)" prompt with no. The display will then show the default baud rate...

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    8 low power supply warning two power safety thresholds are built into the vr60 receiver to ensure the setup parameters (which are stored in memory) are not altered in the event of a slow power failure. A slow power failure may occur when the 12 volt power supply gradually falls below 10 volts. The f...

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    9 decode the decode routine is used for decoding data telemetry transmitters # 1-12 whose calibration data and frequency have been previously entered during the setup routine (see setup section), or for showing the raw time periods between incoming pulses. The period option is intended for identifyi...

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    10 when decoding a transmitter, the vr60 receiver will show “no signal” on the display until a transmitter pulse is received. The led on the front panel (below display) will flash to indicate that a signal has been received by the vr60 receiver and is being sent to the decoder. The data from the tra...

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    11 pulses per minute the value of pulses per minute can be shown by using the decode function. First, setup a transmitter (see transmitters setup section) with the following: frequency (as desired), rep rate, slope = 60, intercept = 0, no decimal. Ignore the id (depth, temp, etc.) and the units (m, ...

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    12 setup the setup routine contains the following features: 1. Set internal time-of-day clock 2. Turn on/off the printer, set the print interval and baud rate. 3. Setup transmitter parameters (frequency, coding type, units, slope, intercept) for up to twelve transmitters. The transmitter parameters ...

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    13 baud rate is displayed (choice of 9600, 1200, or 300 baud). When the appropriate baud rate is displayed, press the enter key on the keypad. Log interval (option 03b) if data logging is included in the vr60 receiver (see vr60 memory (option 03b) section), a prompt for the log interval is shown on ...

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    14 transmitters setup the calibration data may be entered for up to twelve telemetry transmitters for use in the decode mode (see decode section). The vr60 receiver is shipped with the calibration data setup for any transmitters ordered with the receiver. Calibration data for other transmitters may ...

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    15 step 4: select id press next until the desired id appears. The existing types are: depth (depth), pres (pressure), temp (temperature), cond (conductivity), spd (speed), rate (pulses per minute, etc.), and angl (angle). When the desired id is shown on the display, press the enter key. Step 5: sele...

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    16 prompts for the intercept. An intercept of -256, with the slope above, is entered as - 2 5 6 0. The choice is then presented to have a decimal point. The display will show either tr n or tr n no decimal (y/n) decimal pt. (y/n) when no is chosen, the other prompt is shown. This continues until yes...

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    17 converting units the calibration data supplied with each transmitter contains the slope and intercept for a particular set of units (for example, depth in meters). If the units of display are to be changed, the slope and intercept data must be converted to match the desired units. The following e...

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    18 internal battery (option 02) the power switch has four positions, off, on, chg (charge) and aux (auxiliary). The vr60 receiver with option 02 installed is powered with an internal 12 volt sealed lead acid battery. The on position will power the receiver from the internal battery. The internal bat...

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    19 ( ) time l h d b = × − + ⎧ ⎨ ⎪ ⎩⎪ ⎫ ⎬ ⎪ ⎭⎪ 262144 2 vr60 memory (option 03b) the vr60 memory feature (option 03b) provides 256k of data storage memory and the firmware to log data telemetry transmitters. The data logging option is intended to compress and store data which would normally be writte...

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    20 for illustration purposes, assume there is a continuous logging of data, and an average is used for the number of bytes required for time storage. With these assumptions, the time to fill the memory has been calculated in the table below for a number of cases. Sample time to fill storage memory t...

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    21 decoding and logging while decoding a transmitter (see decode transmitters section), the logging of data can be turned on or off with the keypad by pressing the log key (‘+’ key then decode key). A visual indication in the upper right hand corner of the display appears when data logging is enable...

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    22 retrieve data from memory stored data can be viewed on the display, printed through the serial port to a printer, or sent through the serial port to an external computer. The memory position where data is stored starts at zero and fills to position 262144. If there is old data stored in memory, f...

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    23 view data the view command is entered by selecting '1' after entering the inspect memory routine. The display then shows “view. Start at?” on the first display line and “(page 0, 1, 2, 3)” on the second line. Enter the desired page number and select enter on the keypad. The counter position is th...

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    24 erase data when storing data, the memory position automatically increments from the current position to the last position (262143). The only way to change the memory position, other than storing more data, is to erase the data. The memory position will always be zero after the data is erased. The...

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    25 5. Enter the inspect memory routine (press the + key, then the log key, and finally the setup key). 6. Select the dump command by pressing '4'. The display reads: normal(1), or binary dump(d). 7. Press ‘1' to select normal. The display then reads “normal start at 0 (y/n)”. 8. Press yes to continu...

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    26 battery replacement on the memory board a lithium battery (tadiran #tl-5903) is installed on the memory board and will retain data for more than one year. For data reliability, a yearly replacement of this battery is recommended. Be sure any data stored in the vr60 is downloaded to a computer bef...

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    27 coded transmitter (option 07) a vr60 receiver with coded transmitter capability (option 07) should be setup using the vr60pc software (see vr60pc software manual). Without the vr60pc software, the receiver is limited to the factory setup. The channel knob on the front of the vr60 must be in the e...

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    28 a coded telemetry transmitter’s information must be entered in the vr60pc software (see the adding telemetry data section of the vr60pc software manual) when the coded frequency setup is sent to the vr60 receiver. If a coded telemetry transmitter is not setup and it is detected by the vr60 receiv...

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    29 coded channels the vr60 receiver can identify four transmitter types on one frequency. This is done by using different sync and bin values on four different channels, referred to as a coded map. The default values assigned to each channel are shown in the table below. The coded map specific to th...

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    30 non-standard preselected frequencies (option 08) there are eleven preset channels available with the front panel rotary switch labelled channel. The standard frequencies are listed in the vr60 receiver specifications section of the appendix. When these are not the desired frequencies, a second se...

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    31 available software programs software programs there are two software programs available for use with the vr60 receiver: vscan and vr60pc. The software program used depends on the study being preformed and the options installed in the vr60 receiver hardware and firmware (see option combinations an...

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    32 option combinations and applicable software the table below lists the option combinations available with the vr60 receiver. Option 02 and option 04 are both available with any combination listed below. Option combinations software available vr60-01 vr60-01-03b vscan vr60-01-07 vr60-01-03b-07 vr60...

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    33 appendix glossary bin size the bin size is for each coded tag is stored in the firmware of that particular tag and is necessary for proper reception of the pulse string by the vr60 receiver. Blanking interval the blanking interval is the time after each detected pulse in which echoes and reverber...

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    34 hardware specifications vr60 receiver specifications receiver type: heterodyne, 455.2 khz if. Frequency range: 10 khz to 99.9 khz. Bandwidth: 500 hz (crystal filter 3 db points) image rejection ratio: 50 db. Gain: 72 db (not including hydrophone pre-amp). Gain control: 66 db dynamic range automat...

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    Vr60 receiver specifications 35 power supply: 12 volts dc (10 - 14.5) -30 ma -35 ma with hydrophone -85 ma with decoder & hydrophone external power cable supplied. Internal 7.2 ah rechargeable gel cell battery available as option 02, provides 50 hrs continuous use. Accessories: vh65 omnidirectional ...

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    36 v10 directional hydrophone (50-80khz) operating frequency: 50 to 80 khz. Operating depth: 5 meters power supply: 12 vdc 5 ma (supplied by receiver) dimensions: 82 mm x 95 mm x 35 mm case material: machined solid block of aluminum. Cable: 6.5mm diameter polyurethane jacket, twisted shielded pair. ...

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    37 v11 directional hydrophone (25-35khz) operating frequency: 25 to 35 khz. Operating depth: 5 meters. Power supply: 12 vdc 5 ma (supplied by receiver). Dimensions: 116 mm x 184 mm x 57 mm case material: machined solid block of aluminum. Cable: 6.5mm diameter polyurethane jacket, twisted shielded pa...

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    38 coded channels (order specific) the vr60 receiver can identify four transmitter types on one frequency. This is done by using different sync and bin values on four different channels, referred to as a coded map. The coded map for this order is shown below. Order no.: 01-680 date: march 26, 2002 c...

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    39 system diagrams diagrams include: figure 1 - vr60 receiver board schematic figure 2 - vr60 receiver board layout figure 3 - vr60 controller board schematic - power figure 4 - vr60 controller board schematic - analog figure 5 - vr60 controller board schematic - digital figure 6 - vr60 controller b...