Model Options

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Connection

Conductivity Range >20 microsiemens.

ENCLOSURE MATERIAL Powder coated die cast aluminum

PRESSURE Drop: < 0.1 psi at 12 ft/s in 4" (<0.01 bar at 3.7 m/s in 100 mm) and larger pipe

Enclosure Rating

Approvals BTL

Display (-LCD option): 2 x 2" (50 x 50 mm) graphic LCD with backlight

Maximum Operating Pressure 400 psi (27.6 bar) @ 100°F (37.8°C)

Temperature

Applicable Pipe Material Most popular plastic and metal pipes
i.e. Carbon steel, SS, copper, UPVC/PVDF, galvanized steel, mild steel, and brass

Output Impedance 4 to 20 mA: 536 Ω
5V: 500 Ω 10V: 1.27k Ω

Temperature Resistance Range Matched 4 wire platinum RTD’s

Diameter >10 upstream, >5 downstream

Relative Humidity 10 to 90% non-condensing

Applicable Pipe Size 4 to 36" (100 to 900 mm), model dependent. See model chart

Output (1) Analog: 4-20 mA, 0-5 V, 0-10 V or 2-10 V (display selectable)
(1) Pulse/Frequency: 0-15 V peak pulse, 0 to 500 Hz or scalable pulse output (display selectable)
(2) Alarm: Empty pipe detection or minimum/maximum velocity, (display selectable) & Reverse flow output indication

Power 12-42 VDC, .25 A @ 24 VDC
12-36 VAC

Accuracy

Accuracy (Temperature)

Material Wetted: Body shaft/fitting: 316 SS
Electrodes: 316 SS
Electrode cap: Polymer/polystyrene
O-ring: Silicone
Thermowells: 304 SS

Manufacturer Dwyer Instruments

Type Insertion thermal energy meter

Range 0 to 20 ft/s (0 to 6 m/s). *For max flowrates >10 ft/s (3 m/s) order option -CC

Dwyer Instruments IEFB-HN-CNDT10LCDCOM | Insertion Electromagnetic energy system with LCD display | High accuracy 4-10" (100-250 MM) pipe | 1% of reading | 1" male NPT process connection | NPT process connections | Conduit connection | (2) 10' (3 M) PT temperature sensors | BACnet/Modbus® communication output

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Out of Stock

Part Number : IEFB-HN-CNDT10LCDCOM

The Model IEFB-HN-CNDT10LCDCOM is a field-adjustable insertion thermal energy meter that measures fluid velocity and energy consumption with accuracy and dependability using electromagnetic technology. While the standard accuracy IEFB covers pipe sizes 4 to 36" (100 to 900 mm), the high accuracy IEFB can be adjusted to fit pipe sizes from 4 to 10" (100 to 250 mm). The IEFB combines a calculator and a temperature meter into one device. The meter is perfect for installation on chillers, boilers, and other heating and cooling applications because of its LCD display, which clearly displays the meter's data, including temperature and energy usage. The long lifespan and great measurement precision reduce yearly running expenses. It also provides a number of output choices, including as typical analog, frequency, and alarm outputs as well as selectable BACnet MS/TP or Modbus® RTU communications protocol over 2-wire RS-485.

Specification
Features
Catalog

Specifications

Details

Manufacturer

Dwyer Instruments

Type

Insertion thermal energy meter

Range

0 to 20 ft/s (0 to 6 m/s). *For max flowrates >10 ft/s (3 m/s) order option -CC

Material

Wetted: Body shaft/fitting: 316 SS
Electrodes: 316 SS
Electrode cap: Polymer/polystyrene
O-ring: Silicone
Thermowells: 304 SS

Accuracy

BTU: Per EN1434/ASTM E3137/CSA C900.1-13: High Accuracy Units: Class 2 for 2 to 20 ft/s (0.6 to 6 m/s)**
Standard Accuracy Units: Class 3 for 6.5 to 20 ft/s (2 to 6 m/s)**.
**Verified at standard temperature 73.4°F (23°C) refer to listed standards for detailed accuracy formulations.

Accuracy

Flow Sensor: High Accuracy Units: ±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)
Standard Accuracy Units: ±1% FS

Accuracy (Temperature)

Class B ±(0.30 + 0.005*t)°C per EN60751

Accuracy (Temperature)

Differential: Et = ±[0.5 +3*(Delta)(Theta)min/(Delta)(Theta)] % per EN1434 for differential temperature

Accuracy

Calculator: Ec = ±[0.5 +(Delta)(Theta)min/(Delta)(Theta)] % per EN1434

Temperature

Compensation: 140 to 220°F (60 to 104.4°C) < 2% error over ±30°F (-1.1 °C) change, 40 to 70°F (4.4 to 21.1°C) < 2% error over ±10°F (-12.2°C) change

Temperature

Limit: Ambient: -20 to 160°F (-29 to 71°C)**; LCD -4 to 158°F (-20 to 70°C); Process: 15 to 250°F (-9 to 121°C); Storage: -40 to 185°F (-40 to 85°C)

Connection

Process: Flowmeter: 1" NPT or BSPT with accessory full port ball valve options
Thermowell: (2) 1/2" NPT or BSPT thermowell with 1" full port ball valve options

Maximum Operating Pressure

400 psi (27.6 bar) @ 100°F (37.8°C)

PRESSURE

Drop: < 0.1 psi at 12 ft/s in 4" (<0.01 bar at 3.7 m/s in 100 mm) and larger pipe

Output

(1) Analog: 4-20 mA, 0-5 V, 0-10 V or 2-10 V (display selectable)
(1) Pulse/Frequency: 0-15 V peak pulse, 0 to 500 Hz or scalable pulse output (display selectable)
(2) Alarm: Empty pipe detection or minimum/maximum velocity, (display selectable) & Reverse flow output indication

Power

12-42 VDC, .25 A @ 24 VDC
12-36 VAC

Connection

Electrical: Removable terminal blocks, (2) model selectable 1/2" female NPT conduit connection, (2) PG 16 gland or (2) PG 16 gland with 10 ft (3 m) 9 conductor 22 AWG plenum rated cables, accessory cable lengths up to 200 ft (61m) optional

Display

(-LCD option): 2 x 2" (50 x 50 mm) graphic LCD with backlight

ENCLOSURE MATERIAL

Powder coated die cast aluminum

Enclosure Rating

NEMA 6P (IP68) (Non display models)
NEMA 4X (IP66) (-LCD option)

Approvals

BTL

Conductivity Range

>20 microsiemens.

Applicable Pipe Material

Most popular plastic and metal pipes
i.e. Carbon steel, SS, copper, UPVC/PVDF, galvanized steel, mild steel, and brass

Applicable Pipe Size

4 to 36" (100 to 900 mm), model dependent. See model chart

Diameter

>10 upstream, >5 downstream

Temperature Resistance Range

Matched 4 wire platinum RTD’s

Relative Humidity

10 to 90% non-condensing

Output Impedance

4 to 20 mA: 536 Ω
5V: 500 Ω 10V: 1.27k Ω