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Summary of Contents for Vemco VR60
- Page 1 VEMCO VR60 RECEIVER HARDWARE MANUAL 12-12-2011 Copyright © 2011 by VEMCO A Division of AMIRIX Systems Inc.
- Page 2 VEMCO’s liability, and the Buyer’s exclusive remedy under this warranty, as to a defect in material or workmanship, is limited to the repair of such defect in the accessory, equipment or part in which the defect appears or, at VEMCO’s option, to the replacement of such accessory, equipment or part with a similar item free from defect. As to any item repaired by VEMCO or furnished as a replacement by VEMCO, VEMCO’s liability and the Buyer’s exclusive remedy to the repair or replacement of such item for any further defect in material or...
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Page 3: Table Of Contents
AVAILABLE VR60 RECEIVER OPTIONS ........ - Page 4 VR60 RECEIVER SPECIFICATIONS ........
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Page 5: Introduction
10 kHz to 100 kHz. The VR60 receiver is designed to operate with a hydrophone containing a high gain, low noise pre-amplifier powered by the receiver. An omnidirectional test hydrophone is provided as a standard accessory (VH65). -
Page 6: Hardware
To open the VR60 receiver case, six mounting screws on the front panel and two rubber feet must be removed. The rubber feet that must be removed are on the same side of the VR60 case as the lid closure clips, and are the two furthest from the clips. After the six mounting screws and two rubber feet are removed, slowly pull the VR60 chassis from the case using the two handles. -
Page 7: Signal Level
These frequencies are also listed in the VR60 Receiver Specifications section of the Appendix. If the receiver has the decoder/display (Option 01), the frequency can also be selected with the keyboard when the Channel switch is in the external (EXT) position (see Set Frequency Command). -
Page 8: Installation
The volume control may be adjusted to a comfortable level without affecting the signal detection process. If the Decoder/Display unit (Option 01) has been installed in the VR60 receiver, refer to instructions on data telemetry found in the Decode Transmitters section. -
Page 9: Available Vr60 Receiver Options
Option 02 and Option 04, which may be included in a VR60 receiver regardless of other options. A complete list of option combinations is available in the Available Software section of this manual. -
Page 10: Hardware Features (Option 01)
(see Decode section). If this key is pressed after the red shift key, the unit logs data to an internal memory data storage module inside the VR60 receiver. The LOG function requires Option 03B. The red shift key is also a plus key (+), used to increment the channel frequency. -
Page 11: 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 of 9600 baud with the Y/N prompt. -
Page 12: Low Power Supply Warning
10 - 14.5 volts, and turn the power switch to ON. Operation of Decoded Display When using the keypad and display to operate the decoder functions of the VR60 receiver, there are two types of prompts. These prompts are explained in table below: (Y/N) The prompt shown on the display should be answered with either a YES or NO. -
Page 13: Decode
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 identifying simple pingers, or calibrating data telemetry units, and does not support printer outputs or data logging. -
Page 14: Decode Period
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 transmitter is displayed in the correct units, as assigned in SETUP. For example, TEMP: 4 "C... -
Page 15: Pulses Per Minute
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, ft, etc.) as neither applies to pulses per minute. -
Page 16: Setup
The routine will then move through the available selections in the following order: Time of Day, Printer, Log Interval (Option 03B), Blanking Interval, and Transmitters Setup. The sections of SETUP pertaining to Option 03B is explained in the VR60 Memory section of this manual. -
Page 17: Log Interval (Option 03B)
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 the display requesting verification that the Log Interval is correct. -
Page 18: 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 be entered from the keypad, or with the appropriate software (see Available Software section). - Page 19 For example, to change the units from meters to feet, the slope and intercept must be converted and entered in the VR60 receiver as feet. The available Units are shown in the table below: AVAILABLE UNITS...
- Page 20 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 TR n NO DECIMAL (Y/N) DECIMAL Pt.
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Page 21: Converting Units
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 examples show the procedure for depth and temperature. -
Page 22: Internal Battery (Option 02)
(white) on the side of the case must be opened. Use the AUX position on the switch to power the VR60 receiver from an external 12 volt Lead Acid battery without float charging the internal battery. -
Page 23: Vr60 Memory (Option 03B)
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 written down from the display or printed through the serial port, during use in the field. -
Page 24: Log Setup
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 TRANSMITTED CALCULATION... -
Page 25: Decoding And Logging
TR# xx yyy Mem write ERROR which indicates that there is a problem with the data storage memory. If a memory error occurs, record the memory location yyy and contact VEMCO. -
Page 26: Retrieve Data From Memory
It is possible to download data to a computer using the DUMP command on the VR60 receiver. Do not use the PRINT command to download data to a computer. The DUMP command is faster and the data is formatted in such a way as to minimize disk storage space. -
Page 27: View Data
If the computer does not appear to be receiving data, or if the data consists of strange characters, check the baud rate on the VR60 receiver and on the computer. Use a continuity meter to ensure the RS232C cable is consistent with the diagram in the back of this manual. -
Page 28: Erase Data
It is suggested that the software be used to perform a download dump as the procedure is less complicated. Normal Download of Data (non-compressed) To download data from the VR60 receiver to a disk file on an IBM compatible computer: Connect a serial connector between the VR60 receiver and the computer. Run the software program. -
Page 29: Binary Download Of Data (Compressed)
This reduces the dump time from hours to minutes as the data stored in 256K of the VR60 receiver memory may take more than 1600K of disk space. -
Page 30: Battery Replacement On The Memory Board
For data reliability, a yearly replacement of this battery is recommended. Be sure any data stored in the VR60 is downloaded to a computer before replacing the battery. There are two methods used to replace the battery, depending on how the battery is attached to the board. -
Page 31: Coded Transmitter (Option 07)
To enter Coded mode on a VR60 receiver, press the ‘+’ key followed by the '8' key on the keypad at the ENTER COMMAND prompt. If the desired frequency is not shown in the list of frequencies, it must be added to the VR60 receiver setup using the VR60PC software program. -
Page 32: Transmitter Type
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 receiver, the bottom line of the display will show the ID number of the transmitter with the AtoD data in place of the telemetry data, as shown in the example below. -
Page 33: Coded Channels
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 this order is found in the Appendix. -
Page 34: 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 set of frequencies are available and referred to as Option 08. -
Page 35: Available Software Programs
The VSCAN software allows information pertaining to the setup of Options 01, 03B, and 05 to be loaded to the VR60 receiver. The software receives GPS data on a second serial port and inserts it into the data file (the receiver must remain connect to the computer). Multiple frequencies may be set in the VSCAN software and it will instruct the VR60 receiver to scan through these frequencies. -
Page 36: Option Combinations And Applicable Software
/ 9 pin female). The 9 pin female end is connected to the computer (either com 1 or com 2) and the 25 pin male end is connected to the front panel of the VR60 receiver. A 9 pin - 25 pin adapter may be used on the computer port, if needed. -
Page 37: Appendix
60 seconds even though the data may be changing at a faster rate on the display. Sync The Sync is a value, in milliseconds, which allows the VR60 receiver to receive the acoustic transmissions of the coded tags (pingers and telemetry transmitters) and identify the type of coded tag based on the coded map (see Coded Channels section). -
Page 38: Hardware Specifications
REJECTION: panel LED. AUDIO OUTPUT: Internal speaker with volume control on front panel. Audio power output is 300 mW. HYDROPHONE TYPE: Three pin signal & power connector for hydrophones containing internal preamps. Compatible with CAI CS-40, and all VEMCO hydrophones. -
Page 39: Vh65 Omnidirectional Hydrophone (50-80Khz)
VR60 RECEIVER SPECIFICATIONS 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. -
Page 40: V10 Directional Hydrophone (50-80Khz)
V10 DIRECTIONAL HYDROPHONE (50-80kHz) OPERATING 50 to 80 kHz. FREQUENCY: 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. -
Page 41: V11 Directional Hydrophone (25-35Khz)
V11 DIRECTIONAL HYDROPHONE (25-35kHz) OPERATING 25 to 35 kHz. FREQUENCY: 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 pair. -
Page 42: Coded Channels (Order Specific)
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. -
Page 43: System Diagrams
Figure 8 - VR60 synthesizer board layout Figure 9 - Hydrophone cable wiring diagram Figure 10 - VR60 processor board schematic - Main and connector section Figure 11 - VR60 processor board schematic - Microprocessor Figure 12 - VR60 processor board schematic - Memory...