R-Series Instruction Manual Detector and Diverter Gate Northwest Marine Technology, Inc. 976 Ben Nevis Loop Road P.O. Box 427 Shaw Island, WA 98286 Phone: (360) 468–3375 Fax: (360) 468–3844 Web Site: http:/www.nmt.us E-Mail: office@nmt.us Revision 7.
R 9500 Detector with Gate, Dual Counter and Desiccant Cartridge Attached
Table of Contents Table of Contents..........................................................................4 Introduction ...................................................................................6 Part 1: Organization and Use of this Manual. ...............................6 Part 2: Equipment Description ......................................................7 Detector Front Panel ....................................................................................................
Dimensions: ............................................................................................................45 Power Consumption ................................................................................................45 Wiring of Power Connector .....................................................................................45 Wiring of Electronics Connector ..............................................................................45 Cleaning and Disinfecting of Equipment.......
Introduction There are two models of R-Series Rectangular Tunnel Detectors, the R8000 and the R9500; they are designed to detect the presence of Coded Wire Tags (CWTs) in fish fed through the central tunnel, such as salmon, herring and eels. The R-9500 may also be operated with a conveyor belt running through it for detecting tags in a large volume of small fish. Fish are passed through the tunnel at a rate of 5 to 23 feet/second (1.5 to 7 meters/second).
Part 2: Equipment Description Detector Front Panel The front panel of the R-Series detector contains the entrance to the tunnel and the control panel as pictured below. The R8000 and R9500 differ only in size. See appendix for size specifications of each machine. Upper LED Display Power Switch Lower LED Display Gate Signal Duration Gate Signal Delay Serial Number Detector Sensitivity Tunnel Power Indicator Tag Threshold Error Low Dead Batteries The Power Switch has two positions, On and Off.
attached, power is supplied from the Gate through the Electronics Connector on the rear panel. If used without a Gate, power may be supplied with either two C-cell alkaline batteries in the Battery Holder on the rear panel or, on newer units, from any 6 to 40 volt dc supply or NMT Power Supply connected to the Power Connector on the rear panel. Please see Turning on Power, in Part 4 regarding units with gates. To the right of the power switch are two LED (light emitting diode) displays.
condition of batteries, with one LED indicating very low charge and full scale indicating a fully charged battery. These LEDs stay lit from 10 to 20 seconds depending on the version of the detector. If powering through the Power Connector using the NMT Power Supply, all of the LEDs to the right of “Tag Threshold” will be on for 20 seconds. After the initial battery condition display, the LEDs to the right of “Tag threshold” go out and the microprocessor initializes itself.
Detector Rear Panel The rear panel of the R-Series Detector has the tunnel exit, one or two air vent(s), an audio signal Alarm or (AudioLarm), a Battery compartment; on newer units the Battery compartment has been replaced with a Power Connector, an Electronics Connector, and a large round red Tag Threshold indicator LED, as shown in the figure below. All detectors must have desiccants.
“DRIERITE” cartridge installed Upper vent One end of hose attached to vent, other to cartridge One end hose attached to cartridge, other end open Plugged lower vent R-Series Detector Rear Panel as of March 2002 The Vent is required to accommodate pressure changes due to changes in weather or altitude (especially during air transport).
The Battery compartment holds two C-cell batteries; only Alkaline batteries should be used, since other types (regular, "heavy duty," rechargeable, or others) will not last as long and will not be correctly monitored by the low battery indicator. The batteries may be left out if a Diverter Gate is used, although the loss-of-power alarm will not function. On later units or retrofitted units the Battery compartment is replaced with a Power Connector.
Diverter Gate The R-Series Diverter Gate attaches to the rear of the R-Series Detector and works in conjunction with it. Its main components are one upper and one lower "beak" for mechanical support, two latching gate doors, an Electronics Box, and a Counter with sensors. The gate doors are arranged so that fish are diverted to one side or the other depending on which door is unlatched.
Gate Electronics Box The front side of the Gate Electronics Box has seven items: a Power Input Connector, a cable for connecting to the R Detector, a vertically toggled Power Switch a horizontally toggled Direction Switch, an audio Error Alarm, an LED indicating Power On, and an LED indicating a Low Battery.
The Direction Switch is toggled to either the left or right. With the gate attached to the detector and the gate power on, set the direction switch so the unlatched door is on the side to which untagged fish are to be diverted. The Error Alarm will sound if the gate latch is in the wrong position. During normal operation the latch will always be in the correct position, but if it is bumped or pushed it can be moved to the wrong position and then the alarm will immediately and continuously sound.
Brackets for mounting to Front Handle Display Front View of Dual Counter. Black Switches decrease the count (-). Red Switches increase the count (+).
Quad Counter The Quad Counter is used with the gate to keep track of the number of tagged and untagged fish in two different groups (sex, species etc.). The Quad Counter consists of two Dual Counters, a Switch Box, a Double Foot Switch and a Power Cable.
Part 3: Equipment Setup Detector Mounting and Setup In most cases, the R-Series detectors rely on gravity to transport fish through them and through the Gate doors. The detector must be mounted at an angle that will maintain adequate speed of the fish through the detector. This is usually an angle between 10 and 30 degrees.
Dual Counter Attachment The Dual Counter is mounted on the front handle of the Detector with 4 1/4-20X3/4” bolts and nylon insert nuts. The Counter Cable with Sensors should be plugged into the rear of the Counter Box, one sensor should be inserted fully into each of the two sensor brackets above the gate doors, and, if so equipped, the counter keeper springs placed to prevent the sensors from vibrating upward.
Quad Counter cable connections. 1. The Counter Cable with Sensors connects to the connector at the rear face of the switch box. The sensors install into the gate sensor brackets in the same way as for the Dual Counter. 2. The short upper cable coming out of the upward facing side of the switch box connects to the upper counter, 3. The short lower cable coming out of the upward facing side of the switch box connects to the lower counter. 4.
Battery cable attached to Power Input Connector on Gate Short Cable/Connector on Quad Counter Power Cable attached to Electronics Connector on Detector Quad Counter Power Cable attached to Cable to R Detector from the Gate Counter Cable sensor in bracket, held in place with Counter Keeper Spring Battery Cable attachments at Gate and Rear of Detector.
Switch Box attached to Front Quad Counter Detector Handle Two Counter Cables from Switch Box. Upper Cable attached to upper Dual Counter, lower Cable attached to lower Dual Counter Counter Cable with Sensors attached to end of Switch Box Foot Switch Cable attached to Switch Box Connector Power Cable coming from Switch Box Cable attachments at Switch Box and Dual Counters at Front of Detector.
Desiccant Cartridge R-Series detectors condense internal moisture when cold water is run through the tunnel. All detectors must have a functional desiccant cartridge or corrosion of the internal electronics will occur. The desiccant should be partially or fully blue. If the desiccant is all orange or pink, change the cartridge or regenerate desiccant material. NMT has provided two different types of desiccant cartridges: the small white “SPEEDAIRE” cartridge and the much larger “DRIERITE” cartridge.
The “DRIERITE” cartridge contains 1.25 pounds of indicating CaSO4. When the desiccant is dry and active it is blue; when exhausted it turns pink. The desiccant may be regenerated with heat. Spread the desiccant granules one layer deep is shallow pans and in a heated oven at 425° F or 210° C for 1 hour (see the enclosed Technical Data Sheet and MSDS). Change the desiccant when it becomes exhausted. DRIERITE Desiccant Cartridge The desiccant cartridge will be partially attached to the detector for shipping.
3. Attach the brackets to the rear panel through the ¼ inch holes that are drilled in the top of the flange. Orient the brackets so that the tabs are facing the center of the detector. Use a washer between the screw and the bracket and one between the bracket and the nut. 4. Remove the desiccant cartridge from the tunnel of the detector and set it in the brackets. The opening end of the desiccant should be over the Electronics Connector. Slide the hose clamps over the tabs on the brackets.
Hose clamp around 10” tubing and brass barb 6” tubing Electronics Connector 5. If it has become unattached, reattach the longer 10-inch piece of tubing between the air vent on the detector and the lower barb on the desiccant cartridge. Attach the 6-inch piece of hose to the barb near the lid. This second piece of tubing may be cut shorter it needed to keep it out of the way of equipment. The longer it is the more slowly the desiccant will exhaust. 6.
Powering the Equipment 1) If the Detector is used with an attached Gate, connect either a 12 Volt Battery or the NMT R-Series120 VAC Power Supply to the Power Input Connector on the Gate, not to the Power Connector on the Detector, and then attach the “Cable to R Detector” on the gate to the “Electronics Connector” on the detector.
The NMT Power Supply should have a white label on the front dated November 2000. This is the only power supply that is authorized for use with the R series detectors and gates. Do not use a power supply that does not have this label. Contact Northwest Marine Technology if your power supply does not have this label. NMT Power Supply with Label The Dual Counter relies on an internal lithium battery with a life of more than ten years.
Aluminum Leg Assembly The tubular aluminum legs are shipped partially assembled, ready to bolt to the detector. If they are disassembled further, be sure to insert the screws from the inside out, i.e. nuts always on the outside. A) On a clean, flat surface, roll the detector over onto it's top, so the legs may be assembled with the feet pointing up. B) Attach the set of legs without the adjustable foot to the entry end of the detector using four ¼-20 x 1" Cap screws and nylon insert nuts.
Part 4: Detailed Operating Procedures Turning on Power This part presumes that the Equipment Setup section was followed so that the Detector, Gate, and Counter are assembled correctly, and that all cables are connected and power is provided. Turn on the Gate using the Power Switch on the Gate Electronics Box. Turn on the Detector using the Power switch on the Front Panel. Toggle the Direction Switch on the Gate Electronics Box a few times to initialize the Gate electronics.
should be on approximately equal lengths of time, with the fourth lit occasionally. If it is known that no half-length tags will be in the fish, the Sensitivity may be reduced such that, in addition to the first LED, only the second LED is on, with an occasional blink of the third LED. This lowered Sensitivity setting will allow more movement of the Detector without causing problems.
fish passing through the detector causes the Diverter Gate latch to toggle before the previous fish has completely exited the gate, and well before the fish in the Detector reaches the Gate. In this case the Gate Signal Delay may be turned up, causing the signal from the Detector to the Gate to be delayed until just before the fish reaches the gate doors. Fine Adjustment of Gate Signal Duration: After increasing the Delay, the Signal Duration should be decreased.
are fully seated and at least one door is closed. You will note that holding one door open prevents the other side from counting. If the door is opened and closed quickly, several times a second, not all the openings will be counted. This is to prevent a bouncing door from creating false counts. Opened twice a second or slower, the Counter should record all door openings. For longest battery life, disconnect the counter cable between uses.
Part 5: Care and Maintenance The R-Series equipment is designed to be as rugged as possible while still being lightweight and performing as a precision electronic instrument. Following these suggestions for care and maintenance will extend its life and reduce the risk of damage. There are two separate cleaning issues. One is with regard to maintaining the equipment properly, the other is the minimization of transfer of disease between hatchery stocks and to food for human consumption.
The Counter contains a lithium c-cell. The contents of the battery are considered hazardous materials and should be treated as such. Special attention should be given to the Rear Panel of the detector as follows. The interior of the Battery Holder should always be kept dry. The Battery Holder Cap has an O-ring, making the Battery Holder water-resistant, so special care is needed only when changing the batteries.
repair! . If you do not have one of these labels, and would like some please contact NMT. Magnets should not be allowed near the R-Series Detectors (no closer than a foot or so), and never in the central tunnel. The Diverter Gate should be thoroughly rinsed, paying special attention to the hollow doors and the underside of the doors and beaks, which can accumulate a considerable amount of fish slime. The bumpers on the gate doors may ”glue” shut with fish slime or after periods of no use.
nearby with an electric drill or similar tool can also generate sufficient magnetic fields to disturb the detector. Wobble (rhythmic side to side or up and down motion) causes the Detector to display increased noise on the LED display. If the wobble is severe enough, it will cause the Detector to falsely signal a tag. Check a Detector mounted on a gurney or otherwise mounted in a less than rigid manner for excessive wobble.
Alarms and Signals Power Loss to Gate If the Detector is powered by an attached Diverter Gate, and has healthy C-cells installed, it will monitor the power it receives from the Gate and sound a continuous audio alarm if the Gate stops supplying power. This helps guard against use after power interruption or accidental disconnection of power to the Gate (i.e., the power cord becoming unplugged). To stop the alarm, simply reset the Detector by turning it off and back on again.
the latch hook. Retighten the lock nut, preferably with Locktite or some other anti-vibration solution. Part 7: Glossary Beak: The triangular sheet metal parts that form the top and bottom of the gate. Counter Sensor: The cylindrical objects on the ends of the Counter Cable. CWT: Coded Wire Tag, the magnetic wire Tag the Detector is built to detect. CWT Plug: A 2"+ diameter wooden plug with a full length CWT in the center that can be used to verify Detector and Wand function.
Part 8: Appendix Daily Operation of the Detector with a Gate and Counter The following steps should be followed before each sampling session. For more detailed information, please see Part 4. 1. Mount the Detector on legs, a table, or some other appropriate device that provides a 10 to 30 degree downward slope and minimal wobble. Small vibrations and wobbling may adversely affect performance. 2.
8. Toggle the "Direction" switch several times to initialize the gate microprocessor. After toggling the switch, the latch hook should be toggling to either side. 9. Confirm the Counter is connected and functioning correctly by opening each gate door manually and observing the change in the counter. This will require toggling the gate switch. A. Confirm that counts appear on the correct display. Switch sensors to the opposite side if necessary. B.
15. Adjust the "Detector Sensitivity" so that the second and sometimes third LED in the bar graph is illuminated. Pass a CWT through the detector at about 10 feet/second (3 meters/second) to confirm that this causes a strong signal well above threshold. See Part 4 for more detailed information. 16. New users should always experiment with the Detector's response to tags moving at different speeds. Tagged fish must pass through the middle of the detector at not less than 5 feet/second (1.5 meters/second).
Daily Operation of the Detector without a Gate and Counter The following steps should be followed before each sampling session. For more detailed information, please see Part 4. 1. Mount the Detector on legs, a table, or some other appropriate device that provides a 10 to 30 degree downward slope and minimal wobble. Small vibrations and wobbling may adversely affect performance. 2. Verify that the desiccant is not saturated. If the desiccant is mostly orange or pink, replace the cartridge.
8. Adjust the "Detector Sensitivity" so that the second and sometimes third LED in the bar graph is illuminated. Pass a CWT through the detector at about 10 feet/second (3 meters/second) to confirm that this causes a strong signal well above threshold. See Part 4 of the User's Manual for more detailed information. 9. New users should always experiment with the Detector's response to tags moving at different speeds.
Detector Specifications Dimensions: The tunnels in the R8000 and R9500 are approximately rectangular. The R8000 tunnel’s inside dimensions are 4 inches (10.2 cm) high and 7 7/8 inches (20.0 cm) wide. The detector itself is 15 ½ inches wide (39.4 cm), 11 7/8 inches high (30.2 cm), and 41 3/8 inches long (1.05m). The detector alone weighs 64 pounds (29 kg). The 9500 tunnel’s inside dimensions are 4 5/8 inches (11.7 cm) high and 9.5 inches (24.1 cm) wide. The detector itself is 17 1/8 inches wide (43.
R-Series Instruction Manual 46
Cleaning and Disinfecting of Equipment Soaps Sudbury Bilge Cleaner and Bio-Clean from VWR are two soaps that have been found to work well. Follow the directions provided with the product. Contact NMT for ordering information if you are unable to find these products. Disinfecting Equipment Chlorine solutions are recommended for use as disinfectants on detection equipment. Common sources of chlorine are calcium hypochlorite ("HTH") and solutions of sodium hypochlorite ("bleach").
The electronics connector allows input to the Detector of belt speed information to optimize sensitivity to belt speed and also automatically alter gate delay and duration depending on belt speed. Contact NMT for further information regarding installing this equipment in a conveyor belt system. Use of R-Series Detector in a Flume While the R-Series Detectors are not submersible, they may be plumbed directly into a flume with the seal made at the central tunnel, leaving the enclosure in air.
Equipment Lists and Weights R-Series Detector R- Series Detector Accessories: Front handle with grip Rear handle with grip CWT Plug 8 ¼-20X3/4 ss hex cap screws 8 ¼-20 ss nylon insert nuts 12 volt rechargeable battery Battery cable Jerome 15v power supply Battery charger Battery charger cables Battery box Sealed battery box lid Battery box strap Desiccant Assembly User’s Manual Quick Start Sheet for Detector without Gate Flyer “Disinfection of Coded Wire Tagging Equipment”
Quad Counter Quad Counter Switch Box Dual Counter Double Foot Switch Tall front handle with grip 2 half handle brackets 4 ¼-20X3/4 ss hex cap screws (for mounting the dual counter to the half handles) 4 ¼-20 ss nylon insert nuts Quad Counter with accessories = 6.4 lb, (2.9 kg). Approximate shipping weight = 11.5 lb, (5.6 kg).
Contacting Northwest Marine Technology NMT strives to provide the highest quality tagging systems for research and management. We offer free consultation on the suitability of available methods for specific purposes. Corporate Office For information on prices, delivery times, and for assistance on any questions or problems relating to our equipment for use in any location outside of Europe, Africa and Asia please contact our main office: Northwest Marine Technology Corporate Office P.O.
Telephone: E-mail: +44-1725-512523, FAX: +44-1725-512964 david.solomon@nmt.us Asia For orders and inquires on equipment and supplies to be used in Asia, please contact: Mr. Yong Huang Tanaka Sanjiro Company, Ltd. \ Northwest Marine Technology 5007 Chambers Creek Lp SE Olympia, WA 98501 U.S.A. Telephone: (425) 455-4731, FAX: (425) 455-4814 E-mail: yong.huang@nmt.
