Laguna Research - Electronic Design&Manufacture

UNDERSEA PRODUCTS
click here for our eCCR Product Catalog	Electronic Closed Circuit Rebreather (eCCR) Controller Suite The LRI eCCR Controller Suite has been designed as a failsafe Oxygen set-point controller with a paramount design criterion of allowing for “mission completion” despite either an electrical or hardware failure. Although these criteria may not be completely necessary for sport diving, it is absolutely necessary of a life support controller in other applications. The entire function of the controller suite can be summed up by simply saying that this suite maintains the Oxygen pressure in a closed circuit breathing system at one of 3 levels selected by the user. An ancillary function independent of specific setpoint goals is to warn the user by light and sound indications if there is an inherently dangerous level of Oxygen or fundamental system malfunction. Our systems are currently in use and have been rigorously tested around the world by diving professionals. Thousands of hours of in-water use have been spent during our development cycle to provide you with the most reliable and functional system we could develop. Our controller suite consists of various modules which may be mixed and assembled to form different functional configurations. At the very least, a complete system must contain a sensor array element, a controller element, a display element, and a solenoid element. Many of our modules are multifunction and therefore combine various elements into one complete module

Click here for our eCCR Suite Manual (PDF)	Central Controller Unit (CCU) The CCU is an integrated setpoint controller and gas manifold system. The controller electronics require a Sensor Array and an Intelligent Light Display (ILD) or a Universal Display Controller (UDC). The Heads Up Display (HUD) module is optional. The gas manifold provides a dual input, solenoid controlled, dual common output arrangement. Each input and output gas paths have two 3/8”-24 threaded ports. These can be fitted with a variety of connectors, hose or tubing adapters depending upon need. Power is supplied from two AA batteries and contained in an isolated compartment. Some of the features of the CCU are: • The CCU case is hard anodized aluminum for superior durability and life. • The case has a removable port plugs to facilitate vacuum/leak testing. • Ultra low power consumption. • Operates from two standard AA batteries in an isolated battery compartment. • The internal PCB is completely field-replaceable should even the unimaginable occur. • Three user selectable Oxygen setpoints from 0.40 to 1.50 ATA. • User selectable calibration points of 0.95, 0.97 and 1.00 ATA with an ILD or 0.21, 0.90 to 1.00 ATA with a UDC. • Altitude compensating to 10,000 ft. • Advanced Oxygen sensor discrimination and decision tree. • Extensive, fault tolerance design. • Auto-activation. • High reliability solenoids. • Can interface to either a ILD or UDC display module.

Click here for our eCCR Suite Manual (PDF)	Intelligent Light Display (ILD) The ILD is a highly optimized feedback and control instrument. Its purpose is to quickly inform the user about the current operating condition of the controller suite. Careful attention has been paid to minimize the effort to understand the information presented. Its functions include: system startup/shutdown, Calibration, Oxygen setpoint maintenance, current Oxygen level, system alarm condition display, and manual Oxygen and Diluent injection. The ILD may only be used with the Central Control Unit (CCU) and has no independent behavior or function. The power for the Intelligent Light Display is supplied from the CCU. Some of the features of the ILD are: • The ILD case is hard anodized aluminum for superior durability and life. • The case has a removable port plug to facilitate vacuum/leak testing. • The single-throw and dual-throw magnetic switch assemblies are user serviceable for cleaning and/or replacement. • The internal PCB is completely field-replaceable should even the unimaginable occur. • There are six visible LEDs for Oxygen level and system status display and one infra-red LED for data communications to other computer systems. • Manual Oxygen injection switch. • Manual Diluent injection switch. • Water blocked, Kevlar reinforced data cable.

Click here for our eCCR Suite Manual (PDF)	Universal Display/Controller (UDC) The UDC is a multifunction device that adapts its function to the role it is placed in. It can operate as a standalone PO2 monitoring device, as a display module for a CCU, or as a setpoint controller when used with the External Solenoid Module for primary or parachute mode controller operation. The UDC can operate with 1, 2 or 3 sensors of any type. There are several modes of operation - SCR Diving mode, Independent eCCR controller with an ESU—redundant controller in CCU systems, Parachute mode for manual CCR controlled systems. The UDC has 3 user adjustable set points—0.40 to 1.50 and a deep setpoint mode. Power is supplied from two standard AA batteries in a completely isolated compartment. Some of the features of the UDC are: • The UDC case is hard anodized aluminum for superior durability and life. • The case has a removable port plugs to facilitate vacuum/leak testing. • The switch assemblies can be removed for cleaning and/or replacement. • The internal PCB is completely field-replaceable should even the unimaginable occur. • Integrated pressure sensor for atmospheric and aquatic pressure sensing. • Altitude compensating to 10,000ft. • Six visible LEDs for Oxygen level and system status display and one infra-red LED for data communications to other computer systems. • Integrated ambient light sensor for automatic LED brightness compensation. • Very low power, automatically controlled backlight which adjusts to ambient light conditions. • Ultra low power consumption. • Uses standard AA batteries in an isolated compartment. • Large display digits for easy reading. • Aggregated Oxygen sensor output for integration with Oxygen sensing dive computers with a constant calibrated output. • Manual Oxygen injection switch. • Alternate display data – displays the information from the CCM or other UDC. • Water blocked, Kevlar reinforced data cable.

	External Solenoid Unit The ESU, when combined with a UDC, creates an intelligent single solenoid Oxygen setpoint controller. The ESU differs from our CCU in that the ESU does not directly analyze the Oxygen content but relies on information passed to it by a UDC. The ESU also provides a HUD connection. A ESU/UDC pair can also be used to provide redundancy in a CCU based system or as a parachute controller for manually controlled rebreather systems (parachute mode operates slightly below desired manually controlled setpoint). The ESU is completely field service replacable. Vacuum ports are available for leak checking. Power for the ESU is provided by two AA batteries.

Sensor Arrays
	All of our sensor array module electronics have two data outputs for each of the three Oxygen sensors. These outputs are fully independent ensuring continued operation on one side should the other side be compromised. Additionally all sensor arrays have provisioning for our Solid State Carbon Dioxide sensor. The sensor array modules interface directly with the CCU, UDC or CO2 modules.

	MK15x The MK15x sensor array can be ordered for either the MK15 or MK15.5 style scrubber housings. The sensor array replaces the existing sensor holder, sensor pcb and sensors and replaces them with R22D style sensors. The sensor array electronics is specifically designed for use with LRI CCU and/or UDC modules.

	”P” Connector This sensor array module is designed for use with the Drager™ female “P” connector. It incorporates three K1D style Oxygen sensors. Additionally, there is an gas injection port available to facilitate injecting gas into the breathing loop from this point.

	Kiss K1 Sport™ This sensor array is built upon Jetsam Technologies K1 sensor housing. We’ve adapted our electronics into the housing for proper operation with our CCU, UDC and CO2 modules.

	Kiss R22 Sport™ This sensor array is built upon Jetsam Technologies R22 sensor housing. We’ve adapted our electronics into the housing for proper operation with our CCU, UDC and CO2 modules.

	Drager Shoulder Mount This sensor array is designed specifically for the Drager Atlantis™ or Dolphin™ style rebreather hose connectors. It is built upon the Kiss Sport™ Sensor array module.

	rEvo™ Sensor Array This sensor array is designed specifically for the rEvo series of rebreathers. We’ve adapted our electronics into the housing for proper operation with our CCU and UDC modules.

	Sensor Array PCB Sensor array pcb’s are available in a variety of shapes and sizes for use in general conversion projects. Connects up to three sensors to a CCU, UDC or ESU.

Other Items
	Heads-Up Display Module The HUD module provides a remote display and a simple minimal indication of whether or not the current system and PO2 states requires immediate operator attention or not. The HUD display may also be mounted as a buddy indicator. Designed for the CCU and ESU modules. HUD Operation Manual (pdf)

	UDC T-HUD Display Module Shown with UDC and HUD. This module allows our HUD device to connect to the UDC for stand alone monitoring applications. HUD Operation Manual (pdf)

	UDC Super Audio Alarm The UDC super audio alarm provides an amazing volume underwater! A perfect addition for working divers that need to hear the critical audio alarms while working or distracted. This addition increase battery consumption when activated over the standard audio speaker.

	UDC Retractor Base The UDC retractor base allow various retractors to be mounted to the UDC. Remove the strap retaining pins, insert the base and reinsert the retaining pins and your ready to go. Made of delrin with slots on the sides for split ring attachments.

	CCU Quick Disconnect Base The CCU quickdisconnect base allows the CCU to be easily removed from mounting surfaces. Made from delrin. The base has four predrilled and tapped holes for mounting. Comes with four feet and stainless steel screws for the CCU.

	rEvo CCU/ESU Bracket Designed hold our CCU or ESU modules perfectly on the rEvo rebreather. Three piece stainless steel design. Features weight pocket retaining strap on the top. Uses quick disconnect feet on the CCU/ESU.

	Drager Dolphin Bracket This bracket is designed to fit the Drager Dolphin and allow you to fit your favorite BCD onto the Dolphin shell. Made of stainless steel and fits into the Dolphin shell without modification.

	Drager Dolphin Regulator Mod This three piece modification set allows you to use a standard IP regulator (150psi) with standard regulator hose fittings.

	CO2 Sensor Module The CO2 module contains the electronics and power supply for the solid state CO2 sensor. CO2 information is passed to the UDC for display and alarm functions. The CO2 module interfaces directly with the Sensor Array modules.

Packages