Integrated Metering Systems, Inexpensive Electric Meters
Since 1989 IMS has been manufacturing current transformer (CT) rated electric submeters. These products quantify electrical energy for dozens of applications, including tenant billing, energy management, solar PV production, cost accounting, or any other application where an accurate, easy-to-install electric meter is required.
Unlike most electric utility meters, our revenue grade CT-rated meters do not plug into a meter socket, so there is no need to re-route power wires. No other electronic meter manufacturer has the confidence and experience to offer a ten-year warranty, and our unique and diverse array of product offerings cover almost any residential, commercial, or industrial application. Our commitment is to 100% customer satisfaction!
Mini Meters
Designed for residential applications, these 100A, 200A, and 400A electric submeters are perfect for metering electric consumption or production for nearly any 120V 2-wire or 120/240V 3-wire application. These revenue-grade single phase (120V 2-wire or 120/240V 3-wire) kWh meters make tenant submetering a snap! Available in indoor flush-mount, outdoor surface-mount, or NEMA 4X Multiple Meter Units (MMUs). Also available in UL Listed, NEMA 4X Multiple Meter Units (MMUs), with up to nineteen meters per enclosure.
Key Features
- Small size
- Utility (revenue) grade solid core or easy-to-install split core Current Transformers (CTs)
- Authorized to apply the UL Mark
- Approved by Maryland Public Service Commission
- Approved by California Division of Measurement Standards
- Approved 2% meter under the California Solar Initiative's PBI program
- Ten-year warranty
1000 Series
This kWh meter with optional demand function has a large LCD display, pulse outputs, and an RS485 serial port for remote monitoring. Available in an indoor steel or outdoor NEMA 4X enclosure (see links at left), which both are UL Listed.
Models in this series come in the following voltage ratings and configurations:
- 1 Ph, 2-Wire, 120V
- 1 Ph, 3-Wire, 120/240V or 2 PH, 3-Wire, 120/208V (same model works with either configuration)
- 1 Ph, 2-Wire, 277V
- 2 Ph, 3-Wire, 277/480V
Key Features
- Large LCD Display showing kWh and (optionally) instantaneous and peak demand with manual keyed reset
- Utility (revenue) grade solid core or easy-to-install split core Current Transformers (CTs)
- Reverse energy LED indicator helps ensure proper installation
- UL Listed
- Approved by Maryland Public Service Commission
- Same low price for indoor steel or outdoor NEMA 4X non-metallic enclosure
- Approved 2% meter under the California Solar Initiative's PBI program
- Ten-year warranty
2000 Series
Key Features
- Large LCD Display showing kWh and (optionally) instantaneous and peak demand with manual keyed reset
- Utility (revenue) grade solid core or easy-to-install split core Current Transformers (CTs)
- Reverse energy LED indicator helps ensure proper installation
- UL Listed
- Approved by Maryland Public Service Commission
- Same low price for indoor steel or outdoor NEMA 4X non-metallic enclosure
- Approved 2% meter under the California Solar Initiative's PBI program
- Ten-year warranty
3000 Series Multi-Function Smart Meter
(UL Listing Pending. Available Winter 2010)
Standard Features, All Models
- kWh, maximum demand, and instantaneous power on LCD display and over Modbus serial port
- Same meter for 3PH 3W Delta or 3PH 4W Y configurations, 208V or 480V
- Revenue-grade accuracy with solid-core CTs, or easy to install split core CTs
- Wide operating range with automatic temperature compensation for maximum accuracy (0.5% error max under all conditions with IMS solid core CTs)
- Large custom LCD display with scroll button
- 12VDC mechanical counter output
- Auxiliary 12VDC output @ 200mA for powering wireless AMR devices
- Two isolated pulse outputs (kWh & 10wh)
- Low voltage detection
- Reverse energy indicators (per phase) on display to ensure correct meter installation
Standard Features on Modbus Serial Port
- kWh, Max. Demand (kW), Frequency (Hz)
- Volts, Amps, Watts, VA, and PF per phase
- Time of Use Metering: Built-in data logger stores kWh, Volts, Amps, and Watts, with date & time stamp from real time clock (65 days of data storage @ 15 minute intervals)
Optional Features
- Volts, Amps, Watts, VA, and PF per phase on display
- Bidirectional Metering (kWh; bidirectional Demand upon request)
- BACnet interface
- Ethernet interface (IP addressable)
- Battery backup for real time clock
Current Transformers
Split Core vs. Solid
Should I order split core or solid core CT's? What's the difference?
Solid Core
Solid core Current Transformers (CTs) look like donuts with wires attached. These ring-shaped devices slip over the power lines and measure the electrical current flowing through the line. The CT "secondary" wires connect to the meter, facilitating power and energy calculations.
Solid core CTs are very accurate (0.3% maximum error), small in size, and inexpensive. However, power must be turned off and the circuit opened, generally at a circuit breaker, so that the solid core CT can be slipped over the power line. After installation the power wire must be reconnected to close the electrical circuit. Installation usually only takes a minute or two per CT.
Split Core
Split core CTs can be taken apart, or ‘split' into halves, which negates the need to turn power off and open the circuit during installation. This saves a little installation time, and for critical loads that cannot be switched off, split core CTs are a must. However, split core CTs are more expensive, bulkier, and not as accurate as solid core CTs.
216-360-9800
