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ST90 Introduction
Overview
ST90 are wireless communication devices that provide quick and easy access to remote tank
information such as product level and volume. Intended for supplier-managed inventory programs,
ST90 utilizes the latest Internet and Cellular technologies to provide instant access to inventory
information around the globe. Coupled with the SMARTank
®
information website, ST90 can provide
a tremendous advantage over conventional systems for inventory management, asset control, or
information exchange.
ST90 is also available in Host and Client model configurations. This is advantageous where a number
of tanks are co-located together such that a single Host unit may communicate with several Clients.
The advantage is that only one Cellular radio can perform all communications with the SkyBitz Data
Center for itself and its Clients, thus simplifying installation and maintenance. Contact SkyBitz Tank
Monitoring sales for more information.
For Your Safety
Read these installation and operation instructions carefully. Failure to follow these instructions may
be dangerous or illegal.
Only qualified service personnel must install or service this equipment.
ST90 Specifications
Performance Specifications
Output Voltage (Nominal) Nominally 24V 5%
Output Current (Nominal) Rated from 0 – 50 mA
Load Regulation 0.5% from a 30 mA load
Ripple 50 mV Peak-to-Peak
Output Short Circuit Protection Output is current limited to 50 mA
Accuracy ± 1% of Span – dependent on Sensor Spec.
Hardware Specifications
Sensor Assemblies Differential Pressure measurement type.
Housing Weatherproof; UL recognized (UL94V-0);
flame-retardant glass-filled nylon, Polypropylene
or Stainless Steel
Unit Gross Weight Without Sensor Assembly: 2.0 lbs. (0.91 kg)
Battery Type 6V – Approved SMARTank Battery Pack,
P/N 394-00010.
Expected Battery Life One call out per day – up to 20 months
Three call outs per day – up to 14 months.
Up to three years for Clients
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General