330750 and 330752 High Temperature Velomitor® Systems
This design segregates the velocity sensor from the signal conditioning electronics by means of a hard-line cable, allowing the velocity sensor to be used in applications with temperatures considerably higher than our other Velomitor® transducers. Current versions of these sensors allow the sensing head to be mounted on surfaces with temperatures as high as +400°C (+752°F).
Parameters are specified from +20 to +30°C (+68 to +86°F) and 100Hz unless otherwise indicated.
Note: Operation outside the specified limits may result in false readings or loss of machine monitoring.
|Sensitivity||5.7 mV/mm/s (145 mV/in/s)
|Frequency response||15 to 2000 Hz (900 to 120,000 cpm) ± 3.0 dB;
20 to 1000 Hz (1,200 to 60,000 cpm) ± 0.9 dB
|Transient Temperature Sensitivity||0.0762 mm/s/°C (0.003 in/s/°C), typical, as defined in ISO 5347- 18:1993(E)|
|Amplitude range||635 mm/s (25 in/s) peak below 680 Hz.
2940 m/s2 (300 g) peak above 680 Hz.
Vibration at frequencies above 2 kHz will decrease this range.
|Transverse sensitivity||Less than 5% of Sensitivity|
|Amplitude linearity||±2% to 152 mm/s (6 in/s) peak|
|Mounted resonant frequency||Greater than 5 kHz|
|Broadband Noise floor (15Hz to 2kHz)||0.127 mm/s (0.005 in/s) rms nominal|
|Maximum cable length||305 metres (1000 feet) with no degradation of signal.|
Hazardous Area Approvals
Multiple approvals for hazardous areas certified by Canadian Standards Association (CSA/US/C) in North America and by LCIE in Europe.
|North America||Class I, Div I, Groups A, B, C, and D;
Class II, Div I, Groups E, F, and G;
Class III, Div I.
Ex ia IIC
AEx ia IIC
T4 @ Ta = 100° C
When installed with an approved zener barrier per BN drawing 168077.
Ex nL IIC; Class I, Zone 2
Class I, Div 2, Groups A, B, C, D.
When installed per BN drawing 168077
|Europe/ATEX||Ex II 1 G
EEx ia IIC T4
T4 @ Ta = -40ºC - 100ºC
Ex II 3 G
EEx nL IIC T4
T4 @ Ta = -40ºC - 100ºC.
|Operating and storage temperature range Sensing head||Maximum mounted surface temperature −55°C to +400°C (−67°F to +752°F)
Integral hardline cable: −55°C to +400° (−67°F to +752°F)
Electronics: −55°C to +121°C (−67°F to +250°F)
|Shock survivability||24,535 m/s2 (2500 g) peak|
|Relative humidity||To 100% non-submerged; case is hermetically sealed.|
|2 metres||635 grams (1.40 lb)|
|4 metres||794 grams (1.75 lb)|
|6 metres||953 grams (2.10 lb)|
|8 metres||1111 grams (2.45 lb)|
|Mounting||See Dimensional Drawings, Figures 1 and 2|
|Case material||300 series stainless steel.|
|Connector||2-pin Mil-C-5015 receptacle, hermetically-sealed, 304 stainless steel shell.|
|Polarity||Pin A goes positive with respect to Pin B when the applied velocity is from the base to the top of the transducer.|
|Bend Radius||Minimum bend radius of 51mm (2.0in)|
Note: Please read and understand the User Guide before attempting to install and use this product.