Products Description
| Company Information | |||
| sales@xmjzjsgs.com | |||
| Mobile | +8613666033393 | ||
| +8613666033393 | |||
| 13666033393 |
Technical Specifications
| Parameter | Specification |
|---|---|
| Input | 3300 NSv non-contact proximity probe and extension cable |
| Power Supply | 12 to 35 VDC |
| Output Signal | 4–20 mA DC, proportional to peak-to-peak vibration |
| Output Accuracy | ±1.5% of full scale |
| Frequency Response | 5 Hz to 6,000 Hz, +0, -3 dB |
| Probe Gap Range | 0.5 mm to 1.75 mm (20 to 55 mils) |
| Maximum Loop Resistance | 1000 Ω at 35 VDC |
| Current Limit | 23 mA typical |
| Zero and Span Adjustments | External, non-interacting |
| Signal Defeat (NOT OK) Response | Output < 3.6 mA within 100 μs after fault; restores in 2–3 s |
| Output Impedance (Prox Out) | 10 kΩ, calibrated for 10 MΩ load |
| Scale Factor (Prox Out) | 7.87 mV/μm (200 mV/mil) ±6.5%, worst case ±10% |
| Temperature Stability | ±10% from 0°C to +70°C |
| Operating Temperature (Transmitter) | -35°C to +85°C (-31°F to +185°F) |
| Storage Temperature (Transmitter) | -52°C to +100°C (-62°F to +212°F) |
| Operating Temperature (Probe) | -52°C to +177°C (-62°F to +351°F) |
| Humidity | 100% condensing, non-submerged |
| Dimensions | 100.1 x 73.9 x 53.3 mm |
| Weight | 0.43 kg (0.9 lbm) |
FAQ
Frequently Asked Questions (FAQ)
Q1: What probe does the 990 transmitter support?
A1: It supports the Bently Nevada 3300 NSv proximity probe and matching extension cable.
Q2: What type of signal does it output?
A2: It outputs a standard 4–20 mA signal proportional to peak-to-peak vibration.
Q3: Can it be used for diagnostic analysis?
A3: It provides basic trend data but is not suitable for detailed vibration diagnostics.
Q4: How is the signal output protected during probe failure?
A4: The transmitter will drop the output below 3.6 mA within 100 μs upon a NOT OK condition.
Q5: What is the power supply range?
A5: The unit requires 12 to 35 VDC.
Q6: Is signal isolation available for diagnostics?
A6: Yes, using the optional 122115-01 test adapter is recommended for isolating the PROX OUT signal.
Q7: What is the frequency range covered?
A7: The device operates within 5 Hz to 6,000 Hz.
Q8: Is it certified for hazardous locations?
A8: Yes, it is approved for ATEX Zone 0, Zone 2, and CSA Class I Div 2 hazardous locations.
Tags
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.
