| Measurement range |
±5° |
±10° |
±15° |
Combined absolute
accuracy ①(@25 ℃ ) |
±0.01°（0.17mm/m） |
±0.015°(0.26mm/m) |
±0.02°(0.35mm/m) |
Subroutine
parameter |
Absolute linearity
(LSF) |
±0.06%FS |
±0.03%FS |
±0.03%FS |
| Cross-axis sensitivity② |
±0.1%FS |
| Offset ③ |
±0.005°(0.1mm/m) |
| Repeatability |
±0.0025°(0.05mm/m) |
| Hysteresis |
±0.0025°(0.05mm/m) |
| Input axis misalignment ④ |
±4.0° |
±3.0° |
±2.5° |
| Sensitivity temp. drift coefficient |
≤100ppm/ ℃ |
| Offset temperature drift coefficient |
≤0.003° (0.06mm/m)/ ℃ |
| Offset turn on repeatability⑤ |
±0.008°(0.15mm/m) |
| Resolution |
0.0025°(0.05mm/m) |
| Long-term stability @ 1year ⑥ |
≤0.02°(0.4mm/m) |
| Measurement axis |
1 axis |
| Temperature sensor |
Range：-50~125℃ , Accuracy:±1℃ |
| Output |
RS232(standard），Optional 5 types, please refer to accessories table3.1 |
| RS232 data format |
115200 baud, 8 data bits, 1 start bit, 1 stop bit, none parity,ASCII |
| Cold start warming time |
60s |
| Response time ⑦ |
0.3s @t90 |
| Refresh rate(digital output) |
5Hz (Standard), optional 10Hz, 20Hz |
| Response frequency ⑧ |
3Hz @-3dB |
| Power supply |
9 ～ 36VDC |
| Power consumption |
Average working current≤50mA; average power≤1.5W (25℃&24VDC) |
| Operation temperature range |
-40 ～ 85℃ |
| Storage temperature range |
-60~100℃ |
| EMC |
According to EN 61000 |
| Insulation resistance |
100MΩ |
| MTBF |
≥25000 hours |
| Shock survival |
100g@11ms, three-axis, half sine |
| Anti-vibration |
8grms, 20 ～ 2000Hz |
| Protection |
IP67 |
| Connector |
Metal pigtails |
| Cable |
7-wire shielded cable with tensile reinforcement, heavy duty up to 30Kg |
| Weight |
1.3Kg(with connector and cable,1M length of housing) |
① Combined absolute accuracy means the compositive value of sensor's absolute linearity, repeatability, hysteresis, offset and cross-axis sensitivity error.(in room temperature condition) as
Δ=±
② The cross-axis sensitivity error means the angle that the tilt sensor may be banked to the normal tilt direction of sensor. The cross-axis sensitivity (±0.1%FS) shows how much perpendicular acceleration or inclination is coupled to the inclinometer output signal. For example, for the single-axis inclinometer with range ±30° (assuming the X-axis as measured tilt direction), when there is a 10° tilt angle perpendicular to the X-axis direction(the actual measuring angle is no change, example as +8.505° ), the output signal will generate additional error for this 10° tilt angle, this error is called as cross-axis sensitivity error. SST300`s cross-axis sensitivity is 0.1%FS, the extra error is 0.1%×30° =0.03°（max）, then real output angle should be +(8.505° ±0.03° ). In SST300 series, this error has been combined into the absolute accuracy
③ Offset means that when no angle input (such as the inclinometer is placed on an absolute level platform), output of sensor is not equal to zero，the actual output value is zero offset value.
④ Input axis misalignment means during the installation, the allowable installation angle deviation between actual tilt direction and sensor’s nature measurement direction. In general, when installed,SST300 sensor is required that the measured tilt direction keep parallel or coincident with sensor designated edge, this parameter can be allowed a certain deviation when sensor is installed and does not affect the measurement accuracy.
⑤ Offset turn on repeatability means the repeatability of the sensor in repeated by supply power on-off-on many times.
⑥ Long-term stability means the deviation between the statistics of the maximum and the minimum output value after a year of continuous power supply when the sensor is at 20℃ .
⑦ The response time refers to the angle sensor in a step change (such as the angle changes from -10 ° to +10 ° within 5ms), the time required that output of the sensor achieved to the standard value of 90%. The index is different from the sensor set-up time
⑧ Response frequency is for the limitation of the dynamic measurement range, when the dynamic measurement exceeds 3 Hz, because of centripetal force, the output occupied additional random error, this error is difficult to define.
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