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    <pre style="white-space:pre-line"><code>Model 84800

      Single-channel Signal Conditioning Card

The model 84800 is a compact, high performance signal
conditioner for use with all Jewell Instruments
miniature tilt sensors. Each 84800 conditioning card will
drive one tilt channel (X or Y), and one LM35
temperature sensor. Output is a stable Â±5 DC voltage
(Â±10 VDC differential). Units also include a built-in 1.75
sec low-pass Butterworth filter for superior noise
rejection (specify custom filter times on order), and the
square form factor allows for easy packaging in OEM
and end-user assemblies.

The model 84800 will drive signals over cable lengths of
300m. Distances between card and tilt sensor can be up
to 100m. Use the 84800 signal conditioning card for
peaK performance from any of our 755-series, 756- or
Ceramic Miniature Tilt Sensors.

Input Channels                        One Tilt Channel, One LM35 Temp. Sensor

Output Signal                         Â±5 VDC Single-ended (Â±10 VDC differential)

Gain Settings                                               Fixed gain

                       Sensor Type                          Scale Factor                     Range

                       755-Series                           0.1Â°/V                           Â±0.5Â°

Standard Calibration   756-Series                           1.0Â°/V                           Â±5.0Â°

                       84053 Ceramic                        0.6Â°/V                           Â±3.0Â°

                       84064-02 Ceramic                     10Â°/V                            Â±50Â°

Output Filters                        2-pole Butterworth low-pass filter, roll-off = 12 dB/octave

Temperature Output                                          0.1Â°C/mV (single-ended)

Output Impedance                                            270 Ohms

Power Requirements     8 to 18 VDC@ 8 mA typical, 250 mV ripple max.; reverse polarity protected

Connections            Sensor: Au-plated 100 mil header pins; Power/signal: J1 100 mil header pins

Environmental          -25Â° to +70Â°C Operation, -30Â°C to +100Â°C Storage, 0-90% humidity non-condensing

Materials                             Fiberglass PCB, surface mount components

Dimensions and Weight                 2.47 x 2.47 x 0.63 inches (63 x 63 x 16 mm), 0.75 oz (21 g)

Specifications subject to change without notice on account of continued product development

Ordering Code:

Model No.              Filter fË³(Hz)                               Typical Time Constant (s)

 84800 - 01                0.183                                                  1.750
 84800 - 02                1.829                                                  0.175
 84800 - 03                0.638                                                  0.500
 84800 - 04                0.318                                                  1.000
 84800 - 05                0.064                                                  5.000

                         Jewell Instruments LLC 850 Perimeter Road, Manchester, NH 03103
               sales@jewellinstruments.com â€¢ www.jewellinstruments.com â€¢ Tel (800) 227-5955

                                                                                                                                                              L00173 Rev. B</code></pre>
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