BENTLY NEVADA 190501-10-00-00 Low-frequency Velomitor CT Velocity Transducer
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VIBRATION MONITORING
190501-10-00-00Velomitor CT Velocity Transducer
A low-frequency velocity transducer designed for casing vibration measurement on cooling tower and air-cooled heat-exchanger fan assemblies operating at or above 90 rpm. LOW-FREQUENCY VELOCITY PIEZO-VELOCITY
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SENSITIVITY
3.94 mV/mm/s
±5%
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FREQUENCY
1.5 Hz–1 kHz
±3.0 dB range
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VELOCITY RANGE
63.5 mm/s pk
2.5 in/s pk
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OPERATING TEMP.
−40°C to +85°C
−40°F to +185°F
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LOW-FREQUENCY RESPONSE
1.5 Hz
The lower frequency response is extended to support vibration measurement on fans operating at speeds as low as 90 rpm. |
SIGNAL CHARACTER
Velocity
The transducer measures casing vibration velocity and can capture vibration components associated with the fan motor and speed reducer. |
MECHANICAL DESIGN
316L SS
The housing and two-pin connector use 316L stainless steel. The mounting surface is 33 mm in diameter and the transducer height is 82 mm. |
| Technical Specifications | |
| Product Type | Velomitor CT Velocity Transducer |
| Sensitivity | 3.94 mV/mm/s (100 mV/in/s), ±5% |
| Frequency Response | 3.0–900 Hz ±1.0 dB; 1.5 Hz–1.0 kHz ±3.0 dB |
| Velocity Range | 63.5 mm/s peak (2.5 in/s peak) |
| Transverse Response | Less than 5% of axial sensitivity |
| Amplitude Linearity | ±2% to 63.5 mm/s peak |
| Output Bias Voltage | 10.1 VDC ±1.0 VDC |
| Dynamic Output Impedance | Less than 400 Ω typical |
| Broadband Noise Floor | 0.229 mm/s peak, 1.5 Hz to 1 kHz |
| Maximum Cable Length | 305 m (1,000 ft) without signal degradation |
| Operating Temperature | −40°C to +85°C |
| Storage Temperature | −40°C to +100°C |
| Housing Material | 316L stainless steel |
| Connector | 2-pin 316L stainless steel MIL-C-5015, top |
| Weight | Less than 297 g typical |
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A — MOUNTING
Plate Stud
M6x1 to M6x1 with
3/8-24 adapter |
B — CONNECTION
MIL-C-5015
2-pin connection
interface |
C — APPROVAL
No Approvals
Agency approval option
specified as 00 |
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TYPICAL MACHINE
Cooling Tower & Air-Cooled Heat-Exchanger FansThe 190501 Velomitor CT is intended for casing vibration velocity measurement on fan assemblies operating at or above 90 rpm, with 100–300 rpm described as typical operating speed. Fan motor vibration and speed-reducer vibration can also appear in the measured casing signal.
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WHEN ENGINEERS SEARCH FOR IT
Vibration Monitoring Becomes UnreliableA replacement is commonly considered when an installed velocity channel becomes unavailable, produces readings that no longer represent actual machine vibration, or when low-speed fan vibration must be measured with the required low-frequency response. Incorrect mounting can reduce amplitude or frequency response and may create signals that do not represent actual vibration.
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MECHANICAL DETAILS
Mounting & Signal IntegrityThe transducer has a 33 mm diameter mounting surface and an 82 mm height. It may be mounted in any orientation, with a specified mounting torque of 4.5 N·m ±0.6 N·m. The internal electronics are isolated from the case. Pin A becomes positive relative to Pin B when velocity is directed from the base toward the top of the transducer. |
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Part Number
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02
Quantity
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03
Destination
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04
Required Date
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Machine / System
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DELIVERY
3–5 Days
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WARRANTY
12 Months
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PACKAGING
Brand New
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PAYMENT
T/T
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Order Tracking
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Clear Cost Structure
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AFTER-SALES
Return & ReplacementA straightforward process for post-delivery concerns.
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01. Please contact us within 7 days after delivery if any issue requires attention.
02. Returned items should remain in their original condition and include the specific reason for return. A return or replacement will be arranged after receipt and evaluation.
03. Shipping costs associated with a return are the buyer's responsibility.
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READY TO QUOTE
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SALES MANAGER
Miya zheng
Fast quotation · International delivery · 12-month warranty
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