The 190501-23-00-CN 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：
190501-23-00-CN 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 |
|
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) |
