Products Description
| Company Information | |||
| sales@xmjzjsgs.com | |||
| Mobile | +8613666033393 | ||
| +8613666033393 | |||
| 13666033393 |
Technical Specifications
| Parameter Category | Detailed Specification |
|---|---|
| Product Name | Bently Nevada 990-04-50-01-01 Vibration Transmitter |
| Input | Accepts 1 non-contacting 3300 NSv Proximity Probe and extension |
| Output Signal | 4–20 mA DC, 2-wire, peak-to-peak vibration |
| Power Supply | +12 to +35 VDC |
| Loop Resistance | Max 1000 Ω at 35 VDC |
| Current Limit | 23 mA typical |
| Zero/Span Adjustment | Non-interacting external potentiometers |
| Frequency Response | 5 Hz to 6,000 Hz, +0, -3 dB |
| Probe Gap | 0.5 to 1.75 mm (20 to 55 mils) |
| Prox OUT Output Impedance | 10 kΩ for 10 MΩ load |
| Temperature Stability | ±10% of 7.87 mV/μm |
| Operating Temp (TX) | -35°C to +85°C |
| Storage Temp (TX) | -52°C to +100°C |
| Operating Temp (Probe) | -52°C to +177°C |
| Storage Temp (Probe) | -52°C to +177°C |
| Relative Humidity | 100% condensing, non-submerged |
| Enclosure Material | AISI 303 or 304 Stainless Steel |
| Probe Tip Material | Polyphenylene Sulfide (PPS) |
| Mounting Options | DIN rail or bulkhead screws |
| Frequency Range | 5 Hz – 6 kHz |
| Product Dimensions | 100.1 x 73.9 x 53.3 mm |
| Product Weight | 0.43 kg (0.9 lbm) |
| Typical System Weight | 0.82 kg (including probe and cable) |
FAQ
Frequently Asked Questions (FAQ)
Q1: What types of probes are compatible with this transmitter?
A1: It is compatible with Bently Nevada 3300 NSv non-contacting proximity probes and extension cables.
Q2: Does it support standard 4-20 mA output?
A2: Yes, the 990 transmitter provides a standard 4-20 mA output proportional to peak-to-peak vibration.
Q3: Can the device be used for diagnostics?
A3: Yes, it provides dynamic signal output via “PROX OUT” for diagnostics, preferably with the 990/991 Test Adapter for isolation.
Q4: What are the mounting options available?
A4: It can be mounted using DIN rail clips or bulkhead screws.
Q5: Is the unit suitable for high-humidity environments?
A5: Yes, the potted construction supports use in up to 100% condensing humidity environments.
Q6: Does the device include fault detection?
A6: Yes, it outputs less than 3.6 mA within 100 μs upon a Not OK condition, preventing false alarms.
Q7: Is the transmitter certified for hazardous areas?
A7: Yes, it holds multiple hazardous area approvals including ATEX and Class I Div 2.
Q8: What is the accuracy of the output signal?
A8: The output signal has an accuracy of ±1.5% over the full scale, measured across a 250Ω loop.
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Packing & Delivery
We will use wear-resistant cartons to seal the boxes, and take photos for your confirmation before sealing. We will pack the boxes only after confirmation.
For express delivery, we will use DHL, UPS, TNT, FedEx and EMS.
Please rest assured that we have a deep cooperation with express delivery companies and can ensure that your goods are delivered to you in good condition.
