电容连续液位测量探头

LV3000 and LV4000 Series

Capacitance Continuous Level Measurement Probes and Switch

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Can Operate at High Temperatures and Pressure
Unaffected by Coating Media or Aggressive Products
Accurate and Reliable Measurement
Easy Economical Installation
Rugged Construction
No Moving Parts
Compatible with Both Conductive and Non-Conductive Media
Wide Range of Applications/Industries (e.g., Water, Oils, Corrosives)

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产品描述

The LV3000/LV4000 Series continuous level measurement probes are flexible, cost-effective solutions for applications involving liquids, pastes, and some solids. The built-in (one-piece) electronic module provides a 4 to 20 mA output (2-wire) signal that is proportional to the process level. Zero and span adjustment helps account for various media, tank dimensions, rod lengths, and positions of installation.

OMEGA™ offers these probes in several different models. The user must choose the probe that suits his or her application and install it in the proper location. When submerged, the probe must be able to produce enough capacitance variance. The probe’s success depends on these important factors:
A) Conductive materials can cause a short circuit between a bare stainless steel probe and the tank wall. For this situation, we recommend using PTFE sleeving on the rod surface.
B) Material buildup affects the accuracy of RF capacitive measurements. Additional adjustment to the probe’s sensitivity is therefore recommended.

Housings must be compatible with the requirements for hazardous, washdown, wet, or dusty environments. For explosion-proof environments, the housing may need to be certified. In addition, the active probe might need to be intrinsically safe or have an intrinsic safety barrier.

The electronic circuitry of the probe performs several functions, such as rectifying and filtering the incoming power, generating the radio frequency signal, and measuring the changes in current flow.

SPECIFICATIONS (LV3000 SERIES)
Accuracy: 0.5%
Repeatability: ±1 mm
Level Indication: Bar graph, 0 to 1000%
Process Connection: ¾ to 1½ NPT, tri-clamp or flange
Wetted Material: 316 SS or PTFE
Enclosure Material: Aluminum die cast
Max Pressure: 290 psi (20 bar)
Operating Temperature: -10 to 120°C (14 to 248°F)
Class Protection:
    LV3000: NEMA 4 (IP65)
    LVCN410: IP40
Max Probe Length: 1.8 m (6')
Dimensions:
    Aluminum Die-Cast Head: 89 W x 108 mm H (3.5 x 4¼")
    Diameter of Probe: 16 mm (5/8")
Electrical Connection: Cable gland with ½ NPT conduit
Note: The LV3000 Series probes require a LVCN400 Series controller.

SPECIFICATIONS (LV4000 SERIES)
Accuracy: 0.5%
Repeatability: ±1 mm
Operating Voltage: 12 to 30 Vdc
Adjustment: Zero and span (potentiometer)
Range of Sensitivity: 100 to 5500 pF
Frequency Oscillation: 400 kHz
Output: 4 to 20 mA (2-wire)
Process Connection: ¾ to 1½ NPT, tri-clamp or flange
Wetted Material: 316 SS or PTFE
Enclosure Material: Glass-filled nylon or aluminum die cast
Max Pressure: 290 psi (20 bar)
Operating Temperature: -10 to 120°C (14 to 248°F)
Class Protection: NEMA 4 (IP65)
Max Probe Length: 1.8 m (6')
Dimensions:
    Nylon Head: 89 W x 64 mm H (3.5 x 2.5")
    Aluminum Die-Cast Head: 89 W x 108 mm H (3.5 x 4.25")
    Diameter of Probe: 16 mm (⁵⁄8")
Electrical Connection: Cable gland with ½ NPT conduit
Note: The LV4000 Series probes require a galvanic isolator, LI-420.

SPECIFICATIONS (LI-420)
Input Current from the Evaluation Instrument: 4 to 20 mA
Input Voltage: 22 to 24 Vdc
Output Current: 4 to 20 mA
Output Voltage to the Transducer at 20 mA: 12.5 V
Output Voltage to the Transducer at 4 mA: 15.5 V
Resistance per Conductor: 15 Ω
Testing Voltage Input/output circuit: 2000 V_eff
Domestic Current Demand: 300 ±60 µA
Ambient Temperature: -20 to 70°C (-4 to 158°F)
Enclosure Dimensions: 44 W x 82 H x 110 mm L (1¾ x 3¼ x 4³⁄8)

SPECIFICATIONS (LVCN410 SERIES)
Operating Voltage: 24 Vdc, 110 or 240 Vac (50/60 Hz)
Current Consumption: 4 mA
Adjustment: Zero and span (potentiometer) and 2 switch point (potentiometer)
Range of Sensitivity: 50 to 1000 pF
Output: 4 to 20 mA and 2-relay SPDT
LVCN411/LVCN412: 73 W x 110 H x 110 mm L (2⁷⁄8 x 4³⁄8 x 4³⁄8")

订购所有价格均为人民币税前价格，不包括13%增值税和运费！(指定型号)

其他客户同时购买: 这个图标可以点击扩大，跳出的清单包括了其他客户在购买此产品时同时购买的其它产品。

产品编号产品描述

数量

产品描述

LV4012-38

¥15,770.88

货期: 8 周

96.5 cm (38") long probe with 3/4 NPT connection, with aluminum die cast head with 1/2 NPT conduit entry

LV4042-60

¥18,389.17

货期: 8 周

152.4 (60") long probe with 1 1/2" Tri-Grip™ connection, with aluminum die cast head with 1/2 NPT conduit entry

LV4111-24

¥12,290.95

货期: 5 周

60 cm (24") long probe with 3/4" NPT connection, with PTFE coating and nylon head

LV4121-36

¥13,408.31

货期: 8 周

90 cm (36") long probe with 1" NPT connection, with PTFE coating and nylon head

LV4121-48

¥14,525.67

货期: 8 周

1.2 m (4') long probe with 1" NPT connection, with PTFE coating and nylon head

LV4121-60

¥15,637.47

货期: 8 周

1.5 m (5') long probe with 1" NPT connection, with PTFE coating and nylon head

LV3123-48-HT

咨询

货期:

Remote electronics required LVCN410 Series 1.2 m (4') long probe with 1 NPT connection, with PTFE coating and aluminum die cast head, 177°C (350°F)

LV3125-48-HT

¥44,572.06

货期: 8 周

Remote electronics required LVCN410 Series 1.2 m (4') long probe with 1 NPT connection, with PTFE coating and aluminum die cast head, 177°C (350°F)

LVCN411

¥9,572.60

货期: 2 周

24 Vdc powered controller with relay and 4 to 20 mA output for LV3000 Series only

LVCN412

¥8,830.91

货期: 2 周

115 Vac powered controller with relay and 4 to 20 mA output for LV3000 Series only

Accessories

CNI16D33

¥3,653.02

货期: 2 周

1/16 DIN Dual Display with two 3 A relays and 24 Vdc Excitation

TX4-100

¥442.65

货期: 库存

30 m (100') spool of 4 conductor wire

FPW-15

咨询

货期:

15 Vdc power supply

LI-420

¥5,164.31

货期: 8 周

Loop isolator

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产品编号

数量

产品编号

数量

† 所有金额以RMB显示
注: Comes complete with operator’s manual.

LV4000 Series length is not recommended below 24" due to dielectric strength.

For High Temperature PTFE Sleeving 200°C (392°F), add suffix "-HTPTFE" to model number, add $150 per unit and $660 per foot to price.

订购示例: (1) LV4111-24 60 cm (24, ¥12,290.95

产品编号生成器

在此处生成您自己的产品编号

	(1)	(2)	(3)	(4)		(5)
LV					-

选项说明:

(1) Capacitance System 选项:
4 for standard capacitance system
3 for remote capacitance system

(2) Insulation Connection 选项:
0 for 316 SS rod
1 for ECTFE/ETFE sleeve

(3) Process Connection 选项:
1 for 3/4 NPT thread
2 for 1 NPT thread
3 for 1.5 NPT thread
4 for 1.5 in Tri-Grip
5 for 2 in ANSI flange 15016 316 SS

(4) Enclosure 选项:
1 for glass-filled nylon with 1/2 NPT conduit entry and cable gland
2 for aluminum die cast with 1/2 NPT conduit entry-LV4000
3 for aluminum die cast with cable gland entry-LV4000
4 for aluminum die cast with 1/2 NPT conduit entry-LV3000
5 for aluminum die cast with cable gland entry-LV3000

(5) Length 选项:
L for length in inches -72 inches max

注: 并非所有组合都有效，请查阅规格表上的有效产品编号。

产品手册:

下载 LV4000 Series - Continuous Level Measurement Probes

下载 LVCN410 and LV3000 Series - Continuous Level Measurement