The 190501-20-00-01 Velomitor CT Velocity Transducer is a low-frequency version of the standard Velomitor Piezo-velocity Sensor, specifically designed to measure casing vibration velocity on cooling tower and air-cooled heat-exchanger fan assemblies operating at 90 rpm or higher (typically 100 to 300 rpm). It effectively captures vibration amplitudes at these frequencies, as well as those generated by the fan motor and speed reducer.

Installation Guidelines
-Proper Placement – Install the accelerometer transducer on the bearing housing or machine casing to ensure accurate readings.
-Avoid Signal Distortion – Incorrect installation may reduce amplitude and frequency response or create false signals that do not reflect actual vibration levels.
-Reference Documentation – Follow the instruction manuals and application notes for proper setup.

Engineering Support
Bently Nevada offers engineering services upon request, providing expert assistance in determining the correct installation locations and ensuring optimal sensor performance.

190501 (Agency Approval Options 01 through 04)

Specification	Ex ia IIC T4	Ex nL IIC T4
Class I (Division)	Div 1, Groups A, B, C, D	Division 2, Groups A, B, C, D
Class II	Groups E, F, G	Groups E, F, G
Class III	Yes	No
Alternative Approval	AEx ia IIC T4	AEx nA T4
Installation	Install per drawing 167536	Install per drawing 167536
Temperature Range	T4 @ -40°C ≤ Ta ≤ +100°C (-40°F ≤ Ta ≤ +212°F)	T4 @ -40°C ≤ Ta ≤ +100°C (-40°F ≤ Ta ≤ +212°F)

Ordering Information：
190501-20-00-01 Bently Nevada Velomitor CT Velocity Transducer

Option	Description
A: Mounting Hardware Option
0 0	No stud
0 1	Stud 3/8-in 24 to 3/8-in 24
0 2	Stud 3/8-in 24 to 1/2-in 20
0 3	Adhesive Stud 3/8-in 24
0 4	Stud M6x1 with 3/8-in 24 adapter
0 5	Adhesive Stud M6x1 with 3/8-24 adapter
0 6	Stud 3/8-in 24 to 1/4-in 28
0 7	Plate Stud 3/8-in 24 to 3/8-in 24
0 8	Plate Stud 3/8-in 24 to 1/2-in 20
0 9	Plate Stud 3/8-in 24 to 1/4-in NPT
1 0	Plate Stud M6x1 to M6x1 with 3/8-in 24 adapter
11	Plate Stud 3/8-in 24 to 1/4-in 28
12	Plate Stud 3/8-in 24 to M8x1
13	Quick disconnect stud
14	Adapter, 3/8-in 24 to 1/4-in 20
15	Adapter, 3/8-in 24 to 5/16-in 18
16	Adapter, 3/8-in 24 to 3/8-in 24
17	Adapter, 3/8-in 24 to 3/8-in 16
18	Adapter, 3/8-in 24 to 1/2-in 13
19	Adapter, 3/8-in 24 to 1/4-in 18 NPT
20	Adapter, 3/8-in 24 to 3/8-in 18 NPT
B: Connection Option
0 0	MIL-C-5015 connection interface
9 9	Unit with included 32-foot cable
C: Agency Approval Option
0 0	No Approvals
0 1 - 0 4	CSA/NRTL/C (Class I, Division 1), ATEX/IECEx/CSA (Class I, Zone 0/1)

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Annual purchases over $50k can enjoy the ladder discount, signed framework agreement customers also enjoy VIP inventory reservation and monthly reconciliation services
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We work with over 150 manufacturers and provide tens of thousands of automation parts.

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Absolutely! We understand that machine downtime can be costly, and we work swiftly to supply the necessary parts.

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Yes, we have a dedicated multilingual support team to assist customers worldwide.

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