Catalogue SRH Contactless Rotary Sensors
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SRH280 C O N Ta
PERFO RM AN CE
ELECTRI CAL
Supply voltage
Maximum supply current
Reverse polarity protection
Resolution
Non-linearity
Vdc Vdc mA
8 to 30 (unregulated) Up to 40 (-40 to + 60°C) 25
Yes - indefinitely 0.088 (12bit) ±0.2 <±50
90, 180, 270 or 360
0.5 to 4.5 (over selected angle)
1.0
>5
< 5 rms
15
%
Temperature coefficient ppm/C
Analogue Output option (A)
Measuring range °
Voltage output range Vdc
Range accuracy %
Load resistance k Li
Output noise mVAC
Output lag @ 3600°/S ms
PWM O utput option (P) Measuring range °
Digital output MIN pulse width MAX pulse width PWM frequency Hz
Output current maximum mA Output lag ms
MECHANICAL
Mechanical angle °
M ounting
Operating torque maximum
unsealed shaft IP50 gm cm sealed shaft IP68 gm cm
Shaft velocity maximum 7 sec
Weight g
Phasing
ENVIRON MEN TAL
Protection class
Life
unsealed shaft IP50 sealed shaft IP68
Analogue output graph (CW Rotation on shaft)
SRH 280/90A -SRH 280/180A
SRH 280/270A -SRH 280/360A
5.0
4.5v
4.0 3.5 3.0 2.5 2.0 1.5 1.0
0.5v
"0.0
5.0 4.5v
4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5v 0.0 0"
/
/ /
/
//
//
/ /
/ /
/
\t2
90 '
1
22
/
-33
33
270
360
See diagram 1uS = 0°
4096uS = 359.91° 244 ± 5% (signal period =
4
0.1
PWM output graph
Angle
Itttt
0 deg (lbs 0)
4097u.s
PWmax
4097yS ±5%)
359.91 deg
(lbs 4095)'
1/fPW
4096^s
360, continuous
Use 2 x M4 socket head cap screws and M4 washer - maximum tightening torque 2Nm
100 120 3600 35
When shaft flat or shaft ident mark is in line with cable exit, output is at mid travel (± 10°) The sensor housing allows for 20° adjustment via the mounting flange slots.
IP68 or IP50
Exceeds 20 million operations (10 x 106cycles) of ± 75° 20 million operations (10 x106 cycles) of ± 75°
Sensing element life is essentially infinite (contactless), and the SRH280 life figures refer to the operating shaft seal. Mechanical load (axial and radial) on the shaft should also be a considered.
Contactless - no degradation due to shaft dither
-40 to +120 @ 8Vdc input (tested to + 127 for 1 hour duration)
-40 to +90 @ 30Vdc input (tested to + 122 for 1 hour duration)
-55 to + 125
RTCA-DO160D, 10Hz to 2000Hz (random), 12.61g rms - all axes Survival to 2500g - all axes
Threat 100V/m : derangement < ± 0.25% ES
Dither life
Operational temperature" C
Storage temperature C
Vibration
Shock
EM C Immunity level EN 61000-6-2:200MHzto1GHz
^ If the maximum operating temperature is exceeded, the voltage regulator will shut down to protect the device from overheating
4
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