Rochester Gauges 8640 Series 1 1/2 in. Top Mounting Magnetic Liquid Level Tank Gauge w/ Senior TwinSite Dial - Range: 240-30 Ohm - Fits 8 in. Tank Depth

The 8600 Series Senior spiral gauges are designed for use in measuring liquid levels in hydraulic, lubricating or fuel-oil storage tanks, and gasoline and diesel fuel levels in stationary, standby and mobile generators. The 8600 Series is not recommended for off-road equipment.

The 8640 spiral gauge incorporates a strong nickel-plated Neo magnet capable of driving a TwinSite® sender which provides a direct, fractional reading and also sends an electrical signal to a remote receiver.

All 8600 Series spiral gauges have a 1 1/2 in. MNPT tank connection and are suitable for tank pressures up to 25 psig maximum. They are designed for top mounting in tanks.

Specifications

• Range: 240-30 Ohm
• Mounting: Designed for top-mounting only
• Temperature: Standard operating range is -40°F to 158°F, -40°C to 70°C
• Humidity: Exposed portions should be painted for marine applications, less dial
• Shock: Shorter styles are suitable for some mobile, off-road applications
• Vibration: Shorter styles are suitable for some mobile, off-road applications
• Power: 0.5 watts maximum for TwinSite® versions
• Tank Pressure: 0 to 25 PSIG [0 - 1,7 Bar] maximum
• Approval: Direct indicating gauge. Available UL listed for flammable liquids. Some models UL recognized for marine service
• Accuracy: Accuracy depends upon proper gauge sizing and tank set up - TwinSite dials +/-12%

Construction

• Head: Die-cast zinc
• Guide Rod: Zinc-plated steel
• Centershaft: Brass
• Tie Plate, Guide, & Bearing Pin: Stainless steel
• Center Shaft Holder & Magnet Bushing: Acetal
• Float: Nitrile rubber
• Drive Magnet: Neo, nickel-plated
• TwinSite® Sender: Polyamide

Downloads

MS-516 Spiral - Installation Guide (PDF Download)