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        <div id="content-top2">P. 148</div>
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    <pre style="white-space:pre-line"><code>Model MD908 â€œIRISâ€ Tilt Switch

The IRIS Tilt Switch and Controller powerful tilt
control device with advanced firmware features. The
on-board electrolytic tilt sensor is sensitive to
&lt;0.002Â°. User programmable settings include AUTO-
zero (tare), sample averaging, hysteresis control, and
more. Units support RS232 and RS422 (RS485 full
duplex) output. The IRIS also supports a variety of
output protocols including Trimble TCM, NMEA XDR,
BAE, and Ashtech Compatible. Units ship standard
with 24-in. hook-up cable. Use the IRIS for industrial
pitch and roll measurement, platform leveling,
specialized OEM assemblies, scientific instrument
packages and more.

                        High-Gain                       Standard                                   Wide-Angle

Angular Range           Â±10Â° Â±25Â° Â±50Â°
Resolution
Repeatability           0.002Â°                          0.004Â°                                     0.01Â°
Non-Linearity
Output                  0.01Â°                           0.01Â°                                      0.02Â°
Output Format
Baud Rate               1% 1% 1%
Channels
Tilt Switch Controls                                    RS232, RS422 (RS485 full duplex)

Kz Coefficient (deg/C)  NMEA XDR, Trimble TCM, Ashtec compatible, Simple (default: X, Y, Temp., S/N)
Ks Coefficient (%/C)
Time Constant                  9600 (default), 19200, 28800, 57600, 115200, 230400
Natural Frequency
Power                                                   X-tilt, Y-tilt, Temperature, Serial No.
Environmental
Dimensions                      8 TTL-compatible CMOS control outputs (0-5 VDC);
Materials
                        20mA source Power per channel (not to exceed 100mA across all 8 channels)

                                                        10 arcsec/Â°C (typical)

                                                        0.03%/Â°C

                                                        0.15 sec

                                                        7 Hz

                        7-28 VDC @ 30mA, 250 mV ripple max, reverse polarity protected

                        -40Â° to +85Â° C operating and storage; 90% humidity non-condensing

                                                        67 x 67 x 25 mm, 31g (1.1 oz)

                                                        Glass electrolytic sensor, fiberglass PCB

                        Specifications subject to change without notice on account of continued product development

Ordering Code:                                          Accessories:

                                                        P/N                     Description

                                                        84063-01                Extra 24-in Cable Assembly, RS232 , H1
                                                        84088-01                Header to DB9-sub Connector
                                                        84083-01                Extra 24-in Cable Assembly, RS422 , H1
                                                        00254-02                Header to DB9-sub Connector
                                                                                24-in Tilt Switch Control Cable
                                                                                (Connects to H3 Terminal), Tinned Ends

                                                                                Transformer, 100-240VAC to 12VDC

          Jewell Instruments LLC 850 Perimeter Road, Manchester, NH 03103
sales@jewellinstruments.com â€¢ www.jewellinstruments.com â€¢ Tel (800) 227-5955

                                                                                                                                               L00258 Rev. B</code></pre>
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