Page 153 - Jewell Geophysical - Geotechnical Instrument Catalog

Model C901, C902 Tulip 4-20mA

The model C901 and C902 Tulip Uniaxial
Clinometers deliver the same performance as
our model A900-series, but with 4-20mA
output. Units are available in horizontal (C901)
or vertical (C902) mounting packages. The Tulip
conveniently operates as a 2-wire 4-20mA
current loop, and also includes an on-board
thermistor for temperature measurement. Use
the Tulip with industrial PLC’s, platform position
and control, OEM assemblies, and all other
applications with 4-20mA output requirements.

High-Gain Standard Wide-Angle

Angular Range ±10° ±25° ±50°
Resolution1
0.005° 0.01° 0.02°

Repeatability 0.01° 0.02° 0.04°
Scale Factor*2 1.25°/mA 3.125°/mA 6.25°/mA
Non-Linearity3
1% 2.5% 7%

Output 4-20mA

Channels Tilt, Thermistor

Kz Coefficient (deg/C) 10-20 arcsec/C (typical)

Ks Coefficient (%/C) 0.03%/C (typical)

Time Constant 0.15 sec

Natural Frequency 10 Hz

Output Impedance 270 ohms, short circuit protected

Power (0.02 Ampere x R + 10 VDC) < Vs < 29 VDC

Environmental -40 to +85 C operating and storage. 0-90% humidity

Dimensions See Drawing (page2)

Materials Glass electrolytic sensor, fiberglass PCB

*Specifications subject to change without notice on account of continued development; 1Resolution calculated at .003 mA; 2Linear scale factor

calculated from BFSL through calibration curve; 3Linearity calculated as max % deviation from BFSL. 0.05% linearity achievable using a polynomial

Ordering Code: Pin-out/Wiring:

Pin Color Function

1 Red V+

2 Black GND

3 Blue Temp Excitation

4 Yellow/Orange Temp Out

5 White Temp Return

Jewell Instruments LLC 850 Perimeter Road, Manchester, NH 03103
sales@jewellinstruments.com • www.jewellinstruments.com • Tel (800) 227-5955

L00254 Rev. A