The Single Probe Alarm Module (SPAM) is an accurate and reliable instrument that provides positive indication of steam or water in high temperature and pressure applications. The SPAM measures resistance and reports the presence of either steam or water, based on fluid conductivity. The probe can be mounted in a column or a 1-½” Tee. The Swagelok® metal to metal seal assures a leak proof installation with no moving parts and the SPAM is an effective electronic replacement for mechanical float switches. The electronic unit can be conveniently located up to 65 feet away from the probe with low conductivity water and 500 feet away with high conductivity water. Two Form-C contacts provide relay outputs for control circuits. LEDs indicate “WATER” or “STEAM” and a third LED flashes for “POWER/CLOCK”, to show that power is present and the clock is properly functioning.
The Aquarian 1000Plus is configured with 1 to 4 independent probe channels, redundant power supplies, continuity, level fault monitoring and optional 4-20mA output. Each level relay output is rated at 5A which enables this system to serve as a trip, alarm or on-off control device.
Measuring the difference in resistance between high purity water and steam, the Aquarian 1000Plus is commonly used on Feedwater Heaters, Piping and Drains, Main Steam header drains, Hot/Cold Reheat drains and main boiler high/low alarm/trip.
The failure mode of this system makes the Aquarian 1000Plus very popular on Turbine Drain Systems for Turbine Water Induction Protection (TWIP).
The Aquarian 3000Mini is a multi-probe system with solid state electronics in a stainless steel enclosure, capable of operating up to three two color remote displays, customized for the number of probes and their locations. Applications for the Aquarian 3000Mini include: Boiler steam drum, Feedwater Heater and Deaerator. Standard features: redundant power supplies, clock fault detection of the ±5VDC circuit, three way adjustment for water conductivity, 10A power relays for level fault, 10A power relay contact output for electronic fault.
Aquarian electronic level products, were specifically designed to meet the industry’s growing needs & demand for a reliable, cost effective and versatile means of sensing water levels in a variety of high and low pressure applications. By passing a square wave ±5VDC voltage through the network and processing the resulting signal, a distinction between steam and water is made, even in water conductivities as low as 0.5 micromho.
The Aquarian Probe is the Industry’s choice. This Swaged style high pressure brazed probe does not require gaskets for sealing and offers a 2 year warranty with a 5 to 10 year life span. Rated for 3000psi @1200ºF the probe is designed to prevent water wicking. Each Aquarian probe is 100% Nitrogen gas tested and hydro tested to 6000psi.