Inboard outboard boat motor gauges

Ammeter

Fuel Gauges

Gauge Sets

Hourmeter

Oil Pressure Gauges

Quartz Clock

Speedometers

Tachometers

Temperature Gauges

Trim Gauges

Voltmeters

Water Pressure Gauges

Traditional Instruments
Design Advantages

General Construction Teleflex Morse Electrical Systems takes great care in making gauges that survive the marine environment. All parts, with the exception of the bobbin can, are non-ferrous to prevent rusting. All plastic parts are UV stabilized; designed to operate from -40º F to +185º F, and to be resistant to the chemicals found in the field and in boat manufacturing plants.


All paints and inks are UV stabilized and tested in our UV chamber as well as our SAE outdoor exposure platform to confirm this. Metal bezels are made from brass or stainless steel to stop oxidation degradation due to salt-water exposure. Some other manufacturers use aluminum, which leaves a white residue near mating parts. Most of our lenses are glass to prevent scratching. Where plastic is used, the lenses are "hard coated" to prevent scratching and marring under normal conditions. Packaging is designed for ease of installation with a minimum number of mounting nuts required. We utilize metal brackets rather than plastic because we have seen gauges loosen over a period of time due to the plastic taking a set. We always use lock washers under the nuts for this same reason. Some manufacturers have removed these for cost reduction, but that may allow the electrical connection to loosen over a period of time. Teleflex Morse Electrical Systems gauges all meet very tight tolerances for reading accuracy - much tighter than automotive, and much more consistent than many of our competitors
Vector Movement The heart of all Teleflex Morse Electrical Systems electrical instruments is the Vector air-core movement. This simple, durable movement was pioneered by Teleflex Morse Electrical Systems for marine use and is featured in every electrical instrument built by Teleflex Morse Electrical Systems. Vector movements utilize a permanent magnet that is rotated magnetically in an electrical field. All coil windings and attachments are designed to withstand extremes in vibration, temperature, humidity, salt spray, etc. Teleflex Morse Electrical Systems tin plates the electrical studs to aid in solderability and to minimize corrosion in the marine environment. All coils are placed in an annealed can to prevent our gauge from affecting compasses and other electronic equipment. At the same time, that can protects the gauges from other negative magnetic effects often found in a wiring harness. Silicone dampening fluid is injected into the bobbin to dampen any pointer bounce caused by rough waters or terrain. The amount and the viscosity of silicone is specifically adapted to the gauge application to assure consistent, smooth pointer movement. Features and benefits in Teleflex Morse Electrical Systems Vector Movement components and assembly: Magnet and Pointer Shaft: The pointer shaft is made of surgical stainless steel; not plated steel to eliminate corrosion on the shaft. The ceramic magnet is ferrite impregnated to permanently retain its magnetism. The magnet is zinc die cast in place on the pointer shaft. SPC controls are utilized to check for shaft stick out of the magnet and for concentricity of the magnet on the shaft. This ensures proper positioning of the magnet inside the bobbin. Bobbin Housing: The bobbin is molded with a glass-filled material to ensure stability in temperature and moisture changes. Bearing surfaces are finely polished to minimize friction between the pointer shaft and bobbin housing. The pointer shaft hole diameter is manufactured to +/- .OOO5 " to prevent fluid loss at the shaft opening. A double seal snap is used to mate the two bobbin halves together to prevent fluid loss. Manufacture of the bobbin halves are SPC controlled to insure dimensional accuracy. Ears used to attach the dial to the bobbin are on the bobbin and not the magnetic shielding can. This minimizes inaccuracies due to bobbin movement inside the can itself. Bobbin Assembly: A silicone dampening fluid is injected inside the bobbin to reduce pointer bounce and insure smooth pointer movement. The amount of fluid injected is SPC controlled. The precise combination of volume and viscosity is vital to the prevention of fluid loss through the pointer shaft hole. The studs are then inserted into the bobbin but not fully seated. After the bobbin is wound and wires are soldered, the studs are then fully seated into the bobbin. This creates a strain relief loop to help prevent wires from breaking due to vibration. The number of wire turns on the bobbin is computer controlled to insure accuracy in each bobbin wind. Where necessary, a resistor is installed on the bobbin to offset any negative effects temperature change may have on the copper coil wire. Tachometers: Careful design considerations go into the manufacture of our tachometers and electrical speedometers. Circuit designs are checked so that these units can withstand problems that may fail other manufacturers tachometers such as an open rectifier, noise, etc. Our circuit board material has been checked and proven reliable over many years of exposure to the humid marine market environment without delamination. The calibration components used in the manufacture of Teleflex tachometers are made from 0.25% accurate resistors for more consistent calibration accuracy. Zero return magnets are not included to maximize the unit's accuracy over its entire range. Mechanical Gauges: Teleflex Morse Electrical Systems mechanical pressure and temperature gauges use the proven reliable and accurate bourdon tube mechanism design. This type of mechanism is very dependable through the shock and vibration found on industrial vehicles. The Teleflex Morse Electrical Systems bourdon tube gauges meet all industry standards for calibration specifications. Mechanical tachometers and vehicle speedometers utilize the magnetic speed cup principle. A mechanical cable (not supplied by Teleflex Morse Electrical Systems) rotates a magnet which in turn causes a speed cup with attached pointer to move in proportion to vehicle or engine speed.