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ULT系列超声波液位变送器


ULT系列超声波液位变送器
Series ULT Ultrasonic Level Transmitter

防爆 Explosion-proof 带定位软件 Mapping Software

ULT 系列

超声波液位变送器
防爆,带定位软件
3 29/32 [99.21] 2X 1/2 NPT ?3 21/64 [84.53] 4 9/32 [108.74]

8 1/16 [204.79]

ULT系列超声波液位变送器采用可靠的,精确的非接触测量方式。它不带 任何移动部件,不会堵塞,腐蚀或探头被粘附。定位软件可以使得有效测 量可小到3英寸直径,无需考虑人梯,管线,或罐槽内可能影响测量的装 置。ULT系列带有FM认证的防爆证书,可用于危险场合。它带有6位数码 显示,采用菜单结构编程容易。输出范围是可调的,可选槽罐直径,或采 用满罐和空罐校准来自动算出液位输出。可通过护窗观察显示。故障保护 输出选项和诊断功能使得ULT为重要应用场合的首选。

型号 ULT-11 ULT-21

量程 24.6? (7.5 m) 32.8? (10 m)

温度/压力关系表 40

30

20 压力PSI 可接受范围 10

技术指标 介质:兼容液体,不能用于粉体。 材质:传感器:PVDF;过程连接:303不锈钢;O型环:氟橡胶。 量程范围:24.6? (7.5 m),32.8? (10 m)。 精度:最大量程的±0.2%。 分辨率:0.079? (2 mm)。 盲区:8英寸之内(20cm)。 波束宽度:直径3? (7.6 cm)。 温度范围: 环境: -40 - 140°F (-40 - 60°C); 过程: -4 - 140°F (-20 - 60°C)。 温度补偿:-40 - 140°F (-40 - 60°C)。 耐压:25°C (77°C)以下为30 psi (2 bar) ,超过25°C (77°F)每增加1°C减 少1.667 psi,见图表。 电源:18 to 28 VDC (两线)。 输出信号:4 - 20 mA 或20 - 4 mA (两线)。 最大回路电阻:24VDC时为250 Ω。 电气连接:螺丝接线端。 导管连接:1/2? NPT内螺纹或可选M20。 过程连接:2? NPT外螺纹或可选BSPT。 防护级别:全天候防护NEMA 4X (IP66),防爆级别:Class I, Div. 1, Groups B, C, D; Class II/III, Div. 1, Groups E, F, G。 安装方位:垂直。 故障保护:在丢失信号后30秒,用户可选4, 20, 21, 22 或最后值。 记忆卡:永久储存。 显示:六位LCD。 工程单位:In, cm, ft, m, 百分比。 编程:4按键。 重量:4.0 lb (1.8 kg)。 认证:CE,FM。

0 -40

-20

0

20

40

60

80

温度 °C

Series ULT

Ultrasonic Level Transmitter
Explosion-proof, Mapping Software
3 29/32 [99.21] 2X 1/2 NPT ?3 21/64 [84.53] 4 9/32 [108.74]

8 1/16 [204.79]

Series ULT Ultrasonic Level Transmitter provides reliable, accurate, noncontact measurement of liquid levels. Ultrasonic non-contact technology offers no moving parts to wear, jam, corrode, or get coated like contact technologies. Mapping software makes effective measuring surface only a 3? diameter column. No concerns with ladders, pipes, or other tank intrusions in the remaining sound cone. Unit is FM approved explosion-proof making it ideal for use in hazardous locations. The ULT features easy programming with 6 digit LCD display and simple menu structure. Output range is adjustable with choices of inputting tank dimensions or just fill and empty the tank while calibrating and it automatically scales to levels it senses. Window cover allows early viewing of display. Failsafe output options and diagnostic capabilities makes the ULT a good choice for critical applications.

Model ULT-11 ULT-21

Range 24.6? (7.5 m) 32.8? (10 m)

TEMPERATURE/PRESSURE DERATING 40 OPERATING PRESSURE PSI UNACCEPTABLE RANGE

30

20 ACCEPTABLE RANGE

10

SpecificaTionS Service: Compatible fluids. Not for use with powder and bulk solids. Wetted Materials: Sensor: PVDF; Process connection: 303 SS; O-ring: fluoroelastomer. Ranges: 24.6? (7.5 m), 32.8? (10 m). accuracy: ±0.2% of max range. Resolution: 0.079? (2 mm). Blind Zone: Under 8? (20 cm). Beam Width: 3? (7.6 cm) diameter. Temperature Limits: Ambient: -40 to 140°F (-40 to 60°C); Process: -4 to 140°F (-20 to 60°C). Temperature compensation: -40 to 140°F (-40 to 60°C). pressure Limits: 30 psi (2 bar) up to 25°C (77°C). Above 25°C (77°F), rating decreases 1.667 psi per 1°C increase. See chart. power Requirement: 18 to 28 VDC (Two-wire). output Signal: 4 to 20 mA or 20 to 4 mA (Two-wire). Max. Loop Resistance: 250 Ω at 24 VDC. electrical connections: Screw terminal. conduit connection: 1/2? NPT female (two) or optional M20. process connection: 2? NPT male or optional BSPT. enclosure Rating: Weather-proof meets NEMA 4X (IP66), explosionproof rated Class I, Div. 1, Groups B, C, D; Class II/III, Div. 1, Groups E, F, G. Mounting orientation: Vertical. failsafe: On lost echo after 30 seconds, user selectable to 4, 20, 21, 22 mA or last signal. Memory: Non-volatile. Display: 6 character LCD. Units: In, cm, ft, m, percent. Memory: Non-volatile. programming: 4 button. Weight: 4.0 lb (1.8 kg). agency approvals: CE, FM.

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