Page 123 - Jewell Geophysical - Geotechnical Instrument Catalog
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Model A875 Mini “Tuff Tilt†Analog Tiltmeter
The model 875 Mini “Tuff Tilt†Tiltmeter
combines high precision and durability in a
miniaturized and economical instrument
package. Using MEMS technology, the 875
delivers superior measurement accuracy with
virtually no long-term drift and a resolution of
0.05°. The analog output on this version is 0.5-
4.5 Vdc. All units are rated IP67 waterproof for
advanced protection from the elements. Use the
875 Mini “Tuff Tilt†for structural monitoring,
angle measurement and control, platform
leveling, testing and research, OEM and more.
This product is RoHS compliant.
Static/Dynamic ±5 ±15 ±30
Angular Range1 0.05ï‚° 0.05ï‚° 0.05ï‚°
0.5-4.5 0.5-4.5 0.5-4.5
Resolution ±0.30 ±0.30 ±0.30
0.4000 ±0.0012 0.1333 ±0.0004 0.0667 ±0.0002
Output Voltage Range (Vdc) ±150 ±150 ±150
FRO Tolerance (% max) 2.5 ±0.03 2.5 ±0.03 2.5 ±0.03
Scale Factor (V/°) ±0.005 ±0.005 ±0.005
SF Temp Coefficient (ppm/°C, max)
0° Output (V max @ room temp.) 2 2 2
0° Temp Coefficient (V/°C max) 0.002 0.002 0.002
Non-linearity (% FRO max)
Nonrepeatability (° max) ±1 ±1 ±1
Transverse Axis Misalignment (° max) 0.10 0.16 0.30
Relative Accuracy (° max) <1 <1 <1
Bandwidth (Hz nom) (-3 dB)
Start Up Time (Seconds max) 5 5 5
Response Time (Seconds max) 0.3 0.3 0.3
Electrical & Environmental
Number of Axes 1 or 2
Input Voltage Range (Vdc max) 9 - 30
Input Current (mA @ 24V max) 15
Output Noise (Vrms max) 0.006
Output Impedance (Ohms nom) 10
Operating Temperature Range (°C) -40 to +85
Storage Temperature Range (°C) -50 to +105
Shock (g, 1 msec, ½-sine) 500
Weight (grams) 210 (7.4 oz.)
Seal IP67
Cable 2 M (6.6 ft), flying leads
1Custom ranges available on request
*Specifications subject to change without notice on account of continued product development
*Measurements are performed at room ambient temperature unless stated otherwise
Jewell Instruments LLC 850 Perimeter Road, Manchester, NH 03103
sales@jewellinstruments.com • www.jewellinstruments.com • Tel (800) 227-5955
L00363 Rev. D
