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System-30

System-30 BTU Meter

The System-30 provides highly accurate thermal energy measurement in chilled water, hot water and condenser water systems based on signal inputs from two integral, matched temperature sensors and an integral ONICON inline turbine meter. This compact system is designed to provide totalized energy for low rates from 0.8 to 38 gpm. The totalized output is available as a solid state dry contact closure. Each System-30 is factory calibrated and comes complete with all installation hardware.



Standard Features

Single Source Responsibility

One manufacturer is responsible for the manufacture and compatibility of components, and the calibration of the entire BTU measurement system.

NIST Traceable Calibration with Certification
Complete system-wide calibration for the entire BTU measurement system for each specific application with certification of calibration.

Network Compatible Serial Communications
Optional communications card provides complete energy, flow and temperature data through a single network connection, reducing installation costs. Available with BACnet®, Modbus, LONWORKS®, Johnson Controls-N2, and Siemens-P1 interface cards.

Auxiliary Pulse Input
The System-30 is provided with an auxiliary pulse input for totalizing pulses from water, gas or electric meters. The pulse count is totalized in the System-30 and is available via the optional network interface or on the optional local display.

Backlit Display
An optional backlit display is available for the System-30. This option makes the System-30 ideal choice as a stand-alone meter for installations where network communications are not an option.

Precision Solid State Temperature Sensors
Custom calibrated and matched to an accuracy better than ±0.15° F over the calibrated range.

Simple Installation and Commissioning
Factory programmed and ready to use upon delivery.

Highly Accurate Flow Meters
Built-in turbine flow meter is accurate to within ±0.5% at the calibrated flow rate and within ±2% of reading over an extended range (0.8 - 38 gpm). Each ONICON flow meter is calibrated against a primary volumetric standard directly traceable to NIST with calibration certification provided.

Typical Applications
Chilled water, hot water and condenser water systems for:

        • Commercial office tenant billing
        • Residential apartment and condominium tenant billing
Model Number  
System-30 Manual PDF
System-30 BACnet BTU Meter PDF
System-30 LonWorks BTU Meter PDF
System-30 MODBUS BTU Meter PDF
System-30 N2 BTU Meter PDF
System-30 P1 BTU Meter PDF
Model Number Catalog Page Description
System-30 Microprocessor-based thermal energy meter with integral flow sensor and integral and remote temperature sensors – (Contact closure output for total energy)
System-30 BAC-MS/TP Microprocessor-based thermal energy meter with integral flow sensor and integral and remote temperature sensors – Includes BACnet MS/TP serial interface.
System-30 MODBUS - RTU Microprocessor-based thermal energy meter with integral flow sensor and integral and remote temperature sensors – Includes a MODBUS RTU RS485 serial interface.
System-30 LON Microprocessor-based thermal energy meter with integral flow sensor and integral and remote temperature sensors – Includes LONworks serial interface.
System-30 N2 Microprocessor-based thermal energy meter with integral flow sensor and integral and remote temperature sensors – Includes a N2 serial interface.
System-30 P1 Microprocessor-based thermal energy meter with integral flow sensor and integral and remote temperature sensors – Includes P1 serial interface.

System-30 Order Form (All Models) Excel
11451 Belcher Road South, Largo, FL 33773 • USA
Tel +1 (727) 447-6140 • Fax +1 (727) 442-5699