DEXLOG Dendrometer Data Logger System
The DEX Dendrometer Data Logging System is comprised of a GP1 data logger and (2) DEX electronic dendrometers and can be used to monitor plant growth rate or stress levels over long periods. The system can operate completely unattended. The GP1 data logger offers a self-contained solution for monitoring DEX electronic dendrometers, soil moisture and weather sensors. Data can be monitored and displayed in real-time or output to a PC using the supplied RS-232 serial data cable.
TECHNICAL SPECIFICATIONS
Units |
DEX20 |
DEX70 |
DEX100 |
DEX200 |
MECHANICAL |
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Measurement Range |
5 - 25 |
10 - 70 |
25 - 100 |
95 - 200 |
Expansion Range |
0 - 5 |
0 - 13 |
0 - 13 |
0 - 13 |
Dimensions Length Width HeighT |
65 19 38 |
102 25.4 51 |
155 25.4 76 |
263 38 153 |
Weight |
55 g |
180 g |
230 g |
572 g |
Standard Clamping Blocks |
Dimensions Set 1 19 x 19 x 6 Face Radius 5 mm Dimensions Set 2 19 x 19 x 6 Face Radius 25 mm |
25 x 25 x 9.5 70 mm 25 x 25 x 13 5 mm / 50 |
25 x 25 x 9.5 108 mm 25 x 25 x 13 25 mm / 75 |
25 x 25 x 905 200 mm |
ENVIRONMENTAL |
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Operating Range -10 to 50deg C |
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Temperature Stability 0.0025 mm/deg C |
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Accuracy over 20 deg C range 0 .0 50 mm |
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ELECTRICAL |
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Signal Output Range |
+/- 5 mV |
+/-.5 mV |
+/-.2.5 mV |
+/-.2.5 mV |
Output Sensitivity |
0.5 mV/mm |
0.22 mV/mm |
0.13 mV/mm 0 |
.05 mV/mm |
Conversion Mult. |
2.0 mm/mV |
4.5 mm/mV |
7.7 mm/mV |
20 mm/mV |
Output Linearity |
+/-.01 mV/mm |
+/- 006 mV/mm |
+/-004 mV/mm |
+/-004 mV/mm |
Electrical Noise Limit |
+/- 0.01 mV |
+/- 0.01 mV |
+/- 0.01 mV |
+/- 0.01 mV |