| Q: |
Does cold water affect the battery life of sensors? |
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| A: |
No, our sensors use Nicad batteries, which are unaffected by temperature. |
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| Q: |
How do I check a sensor's battery level? |
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Using a NETMIND™ multimeter (supplied with each system). Select an appropriate DC voltage range. Connect leads from the lug marked "S" to negative lug marked with a "-". Make sure sensor is dry. Do not make human contact with leads during measurement. A fully charged sensor should read 9.4 volts. Recharge when below 8 volts. Sensor stops working at approximately 7.5 volts. *Disclaimer: Please note using a multimeter, other than a NETMIND™ multimeter will result in unreliable readings.
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| Q: |
How do I check my sensors to know if they are working? |
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Jumping a wire between "S" and the negative lug "-" will simulate the sensor being placed in water and cause the sensor to activate. At this point an audible click can be heard from the top of each sensor, except for Slave sensors. For Master/Slave sensor combinations sensors must be placed sonar to sonar and jumpered to activate. Once all sensors have ben activated a hydrophone can be placed nearby to verify updates from sensors. For further assistance contact us Toll Free: 1-877-738-6440 or Email us: tech@northstar-technical.com.
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| Q: |
How do I make sure my sensors have the proper orientation? |
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To check the orientation for each sensor use the following guidelines:
| 1. Door and WingSpread pair sensors. Line of sight communication between
the sensors is critical. Make sure the master and slave sensors are parallel
to each other as best as possible. Make sure the engraved side of the sensors
face away from each other. |
| 2. Headline Height sensor. Line of sight to bottom and footrope is required.
This sensor may require some trial and error in positioning in order to
accomplish proper alignment with bottom. Position the sensor directly under
the headrope with the engraved side up and sensor pointing towards the vessel
as indicated on sensor engraving. Position sensor in net bag and secure
all sensor lugs to the trawl with small lengths of rope so as to maintain
sensor stability. |
| 3. Catch, Temperature and Depth. Position these sensors with the engraved
side up and pointing towards the vessel as indicated on sensor. The use
of floats on top of sensors may be required to achieve good line of sight
with vessel. Position sensor in net bag and secure sensor lugs to the trawl
with small lengths of rope so as to keep sensor stable. |
4. Grid. Position this sensor with the engraved side facing down and sensor
pointing towards the vessel as indicated on the engraving.
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| Q: |
How do you charge the batteries of a sensor and how often should you do this? |
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| A: |
You charge the sensor by simply attaching the smart charger to the sensor lugs and pressing start on the charger. The charger does the rest. The sensors battery lasts from 100 - 250 hrs, which is usually a complete trip. The sensors are only activated in the water. |
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| Q: |
How do you perform a system test? Where can it be perfomed, and what is it's purpose? |
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Charge the sensors before performing the system test. Familiarize yourself with the Diagnostic Screen and Initial System Test sections of your NETMIND™ Users Manual. The system test can be done over the side of the vessel or on deck depending on what type of hydrophone you have. The purpose for the system test is to verify the operation of a single sensor or the operation of the whole system in general.
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| Q: |
Is information displayed in Real Time? |
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Yes, scientist and fisherpeople alike see this as one of the real advantages of a NETMIND™ Trawl Monitoring System. |
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| Q: |
Is there a warranty? |
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| A: |
All NETMIND™ systems have a minimum 1 year warranty. |
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| Q: |
What are benefits of each sensor? |
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| A: |
You can read the many benefits of our sensors by Clicking Here. |
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| Q: |
What are the minimum requirements for the new NETMIND™ 3D software? |
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| A: |
The minimum requirements for the NETMIND™ 3D software are as follows:
Minimum System Specifications:
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| Operating System: |
Windows 98/NT/2000/XP |
| Video Card: |
16MB 3D Accelerated (Most makes & models) |
| Memory: |
256MB RAM |
| Processor: |
700MHz Intel or AMD Family |
| Software: |
NETMIND™ 3.0.2 |
| Monitor: |
15” SVGA (1024x768@60Hz w/16-bit color) |
| Other Drivers: |
Microsoft Data Access Components v2.8 or newer |
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