Product Description
General Information
|
Attribute |
Details |
|---|---|
|
Manufacturer |
Bently Nevada |
|
Series |
990 |
|
Model/Part Number |
990-04-50-01-00 |
|
Model Type |
Vibration Transmitter |
Description
The 990 Vibration Transmitter is designed primarily for original equipment manufacturers (OEMs) of centrifugal air compressors, small pumps, motors, or fans. It provides a simple 4 to 20 mA proportional vibration signal as an input to their machinery control system.
Environmental Limits
Transmitter Temperature
|
Condition |
Temperature Range |
|---|---|
|
Operating |
-35°C to +85°C (-31°F to +185°F) |
|
Storage |
-52°C to +100°C (-62°F to +212°F) |
Probe Temperature
|
Condition |
Temperature Range |
|---|---|
|
Operating |
-52°C to +177°C (-62°F to +351°F) |
|
Storage |
-52°C to +177°C (-62°F to +351°F) |
Humidity
• 100% condensing, non-submerged, with protection for coaxial connectors.
Mechanical Specifications
|
Component |
Material/Details |
|---|---|
|
Transducer Tip Material |
Polyphenylene sulfide (PPS) |
|
Transducer Case Material |
AISI 303 or 304 Stainless Steel (SST) |
|
Probe Cable |
75Ω coaxial, fluoroethylene propylene (FEP) insulated |
|
Cable Armor (Optional) |
Flexible AISI 302 SST with optional FEP outer jacket |
|
Tensile Strength |
222 N (50 lbf) probe case to probe lead, maximum |
|
Transmitter Weight |
0.43 kg (0.9 lbm) |
|
Total System Weight |
0.82 kg (1.8 lbm) typical |
Ordering Information
For a detailed listing of country- and product-specific approvals, refer to the Approvals Quick Reference Guide (108M1756).
Additional technical documentation is available at bntechsupport.com in the Bently Nevada Media Library.
990-AA-BB-CC-DD
A: Full-Scale Option
|
Option |
Range |
|---|---|
|
04 |
0-4 mils pp (0-100 μm pp) |
|
05 |
0-5 mils pp (0-125 μm pp) |
|
08 |
0-8 mils pp (0-200 μm pp) |
|
10 |
0-10 mils pp (0-250 μm pp) |
B: System Length Option
|
Option |
Length |
|---|---|
|
50 |
5.0 meters (16.4 feet) |
|
70 |
7.0 meters (23.0 feet) |
C: Mounting Option
|
Option |
Mounting Type |
|---|---|
|
01 |
35 mm DIN rail clips |
|
02 |
Bulkhead screws |
|
03 |
DIN clips and screws |
D: Agency Approval Option
|
Option |
Approvals |
|---|---|
|
00 |
Not required |
|
01 |
CSA Division 2 |
|
05 |
CSA Division 2, ATEX Zone 0, ATEX Zone 2, and ABS maritime approval |
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