Product Description
Product Overview
| Parameter | Details |
|---|---|
| Part Number | 990-04-70-01-00 |
| Product Name | 990 Vibration Transmitter |
| Application | Centrifugal air compressors, small pumps, motors, fans for OEMs |
| Input | 3300 NSv Proximity Probe with 7.0 m (23.0 ft) extension cable |
| Output | 4-20 mA proportional to peak-to-peak vibration amplitude |
| Full-Scale Range | 0-4 mils pp (0-100 µm pp) |
| System Length | 7.0 meters (23.0 feet) |
| Mounting Option | 35 mm DIN rail clips |
| Agency Approval | CSA Division 2 |
Electrical Specifications
| Parameter | Value |
|---|---|
| Power Requirement | +12 to +35 Vdc at transmitter terminal |
| 4-20 mA Loop Accuracy | ±1.5% over full-scale range (measured across 250 Ω loop resistance) |
| Maximum Loop Resistance | 1000 Ω at 35 Vdc |
| Current Limiting | 23 mA typical |
| Zero and Span | Non-interacting external adjustments |
| NOT OK/Signal Defeat | Output < 3.6 mA within 100 µs of Not OK condition; restores in 2-3 s |
| Power-Up Inhibit | Output < 3.6 mA for 2-3 s after power-up |
| Probe Gap | 0.5 to 1.75 mm (20 to 55 mils) for full-scale range |
| Prox Out Linear Range | 1.4 mm (55 mils), starting at 0.25 mm (10 mils) from target |
| Prox Out Incremental Scale Factor | 7.87 mV/µm (200 mV/mil) ±6.5% typical; ±10% worst case |
| Prox Out Noise Level | 50 mV/pp typical |
| Output Impedance | 10 kΩ calibrated for 10 MΩ load |
| Temperature Stability | Incremental scale factor within ±10% from 0°C to +70°C (+32°F to +158°F) |
| Frequency Response | 5 Hz to 6,000 Hz (+0, -3 dB) |
| Minimum Target Size | 9.5 mm (0.375 in) diameter |
| Leadwire Length | Max 3 m (10 ft) for Proximitor Sensor Output (BNC connector) |
| Power Supply (Non-Hazardous/Zone 2/Div 2) | 28 V |
Mechanical Specifications
| Parameter | Value |
|---|---|
| Transducer Tip Material | Polyphenylene sulfide (PPS) |
| Transducer Case Material | AISI 303 or 304 Stainless Steel (SST) |
| Probe Cable | 75 Ω coaxial, fluoroethylene propylene (FEP) insulated |
| Cable Armor (Optional) | Flexible AISI 302 SST with optional FEP outer jacket |
| Tensile Strength | 222 N (50 lbf) max, probe case to probe lead |
| Transmitter Weight | 0.43 kg (0.9 lbm) |
| Total System Weight | 0.82 kg (1.8 lbm) typical |
| Thread Engagement (1/4-28) | 0.375 in |
| Thread Engagement (3/8-24) | 0.563 in |
Environmental Specifications
| Parameter | Value |
|---|---|
| Transmitter Operating Temperature | -35°C to +85°C (-31°F to +185°F) |
| Transmitter Storage Temperature | -52°C to +100°C (-62°F to +212°F) |
| Probe Operating/Storage Temperature | -52°C to +177°C (-62°F to +351°F) |
| Relative Humidity | 100% condensing, non-submerged, with coaxial connector protection |
Compliance and Certifications
| Parameter | Value |
|---|---|
| FCC | Complies with Part 15 |
| EMC | EN 61000-6-2, EN 61000-6-4; EMC Directive 2014/30/EU |
| ATEX | ATEX Directive 2014/34/EU |
| RoHS | RoHS Directive 2011/65/EU |
| Maritime | ABS 2009 Steel Vessels Rules (1-1-4/7.7, 4-8-3/1.11.1, 4-9-7/13) |
| Hazardous Area | CNRTLUS: Class I, Div 2, Groups A-D, T5 @ +85°C, Type 4; Installed per Drawing 128B3B |
| Entity Parameters (Zone 2) | Power Supply: Ui = 28 V, Ii = 120 mA |
| Entity Parameters (Zone 0/1, Proximitor) | Uo = 28 V, Io = 6 mA |
| Entity Parameters (Zone 0/1, Probe) | Uo = 28 V, Io = 100 mA |