現(xiàn)場可調(diào)，BACnet/Modbus輸出
IEFB是一種現(xiàn)場可調(diào)插入式熱能計，使用電磁技術(shù)精確可靠地測量流體速度和能量消耗。高精度IEFB可調(diào)，以適應4至10”（100至250 mm）的管道尺寸，而標準精度IEFB適用于4至36”（100至900 mm）的管道尺寸。IEFB將一個溫度計和一個計算器集成到一個單元中。液晶顯示屏提供儀表值的清晰讀數(shù)，包括溫度和能耗，因此非常適合安裝在冷水機組、鍋爐和其他加熱和制冷應用中。測量精度高，壽命長，年運行成本。此外，它還提供多種輸出選項，包括2線RS-485上可選擇的BACnet MS/TP或ModbusRTU通信協(xié)議和標準模擬、頻率和報警輸出。
產(chǎn)品應用
監(jiān)控冷水機冷卻輸出性能工業(yè)鍋爐加熱性能能效監(jiān)控熱能優(yōu)化性能商業(yè)和住宅熱能消耗和計量區(qū)域供熱和制冷監(jiān)控能源成本分配監(jiān)控功能靈活，現(xiàn)場可配置設置顯示（-LCD集成選件或遠程附件A-IEF-DSP）可適應多種應用配置。應用信息可選擇顯示，包括管道尺寸、管道材料、液體類型、模擬輸出、脈沖/頻率輸出、警報輸出、通信、輸出、阻尼和校準系數(shù) 通過溫度變化保持高性能精度，密度和/或粘度 安裝向?qū)Ш桶惭b工具易于使用，提供快速和精確的安裝
附件安裝套件A-IEF-kit配有測厚儀和卷尺，以確保準確的安裝深度 流量計沒有可防止結(jié)垢的移動部件和電極，這使流量計具有較長的使用壽命限度地減少維護的需要熱取壓隔離閥配件允許在操作系統(tǒng)中輕松安裝和拆卸，而無需系統(tǒng)停機

Service:Compatible clean or dirty non coating, conductive liquids.

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

Wetted Materials:

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

BTU Accuracy:

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.

Flow Sensor Accuracy: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.

Temperature Accuracy:Class B ±(0.30 + 0.005*t)°C per EN60751.

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

Calculator Accuracy: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 Limits: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).

Process Connection: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.

Pressure Limit: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.

Outputs:(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 Requirements:12-42 VDC, .25 A @ 24 VDC; 12-36 VAC.

Electrical Connection: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 (61 m) optional.

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