DWYER Electromagnetic Flow Sensor IEF-SN-CND

The IEFB series is a field-adjustable insertion thermal energy meter that uses electromagnetic technology to accurately and reliably measure fluid velocity and energy consumption. The high-precision IEFB can be adjusted to fit pipe sizes from 4 to 10 inches (100 to 250 mm), while the standard-precision IEFB is suitable for pipe sizes from 4 to 36 inches (100 to 900 mm). The IEFB integrates a thermometer and a calculator into a single unit. The LCD display provides clear readings of meter values, including temperature and energy consumption, making it ideal for installation in chillers, boilers, and other heating and cooling applications. With high measurement accuracy and long service life, it minimizes annual operating costs. Additionally, it offers multiple output options, including selectable BACnet MS/TP or Modbus? RTU communication protocols via 2-wire RS-485, as well as standard analog, frequency, and alarm outputs. · Flexible field-configurable settings display (LCD integrated option or remote accessory A-IEF).

Monitoring chiller cooling output performance, DWYER Electromagnetic Flow Sensor IEF-SN-CND

The IEF series insertion electromagnetic flow transmitter is an adjustable insertion flow meter that, in addition to providing continuous signal output, employs electromagnetic technology for precise and reliable measurement of fluid velocity. This series is designed to deliver superior performance with simple installation and use. A single unit can be adjusted to fit pipe sizes from 4 to 36 inches (101.6 to 914.4 mm) and offers multiple output options, including selectable BACnet MS/TP or Modbus? RTU communication protocols, in addition to standard analog, frequency, and alarm outputs, communicating via 2-wire RS-485.
Field configurable, high precision, BACnet or Modbus protocol.

Medium: Compatible clean or dirty non-coating, conductive liquids.  

Range: 0-20 ft/s (0-6 m/s).

Wetted Materials: Body shaft/fittings: 316SS; Electrodes: 316SS; Electrode cover: Polymer/Polystyrene; O-ring: Silicone.

Accuracy: IEF-HX-K: ±0.5% of reading at calibrated velocity; ±1% of reading from 2 to 20 ft/s (0.6 to 6 m/s); ±0.02 ft/s (±0.006 m/s) at < 2 ft/s (0.6 m/s). IEF-SX-X: ±1% FS.

Temperature Resistance: Ambient: -20 to 160°F (-29 to 71°C); Process: 15 to 250°F (-9 to 121°C); Storage: -40 to 185°F (-40 to 85°C).

Connection: 1" NPT or BSPT with full-port ball valve option accessories.

Pressure Rating: 400 psi (27.6 bar) @ 100°F (37.8°C).

Pressure Drop: < 0.1 psi at 12 ft/s in 4" (101.6 mm) or larger pipes.

Output: (1) Analog: 4-20 mA, 0-5 V, 0-10 V, or 2-10 V (display selectable);

(2) Pulse/Frequency: 0-15 V pulse, 0-500 Hz, or adjustable output (display selectable);

(3) Alarm: (1) Empty pipe detection or minimum/flow velocity (display selectable); (2) Reverse flow output indication.

Power Supply: 12-42.4 VDC, 0.25 A @ 24 VDC; 12-36 VAC.

Electrical Connection: Removable terminal block, model-selectable 1/2" female NPT conduit connection, PG 16 gland, or PG 16 gland with (2) 10' (3 m) 9-conductor 22 AWG rated cable; accessory cable length up to 200' (61 m) optional.

Display: 2" (5.08 cm) x 2" (5.08 cm) graphic LCD with backlight.

Conductivity: >20 microsiemens.

Housing: Powder-coated aluminum casting.

Enclosure: NEMA 6P (IP68) (non-display models); NEMA 4X (IP66) (LCD optional).

Certifications: UL, CE, NSF/ANSI 61 and 372.

Communication (-COM option)

Type: BACnet MS/TP or Modbus? RTU communication protocol (default disabled, display selectable).

Supported Baud Rates: 9600, 19200, 38400, 57600, 76800, or 115200 bps (display selectable).

Device Load: 1/8 unit load.

Additional Specifications

Applicable Pipe Materials: Common plastic and metal pipes; such as carbon steel, stainless steel, copper, UPVC/PVDF, galvanized steel, mild steel, and brass*.

Pipe Sizes: IEF-HEX-X: 4 to 10" (101 to 254 mm); IEF-SX-X: 4 to 36" (101 to 914 mm).

Installation Position Requirements: Upstream >10 times diameter, downstream >5 times diameter.

*Brass fittings and pipes are not used with NSF-certified models.