Specifications

CR3000 Table of Contents
12. Serial Input and Output Functions......................12-1
13. PakBus Communication Instructions.................13-1
Appendix
A. CR3000 Status Table............................................... A-1
Figures
OV1-1. CR3000 Measurement and Control System................................OV-1
OV1-2. CR3000 Wiring Panel and Associated Instructions....................OV-2
1.2-1. CR3000 Battery Pack and Panel....................................................... 1-3
1.3-1. Alkaline Battery Orientation ............................................................ 1-4
1.3-2. Lead Acid Battery Wiring ................................................................ 1-6
1.3-3. BPALK Power Supply ..................................................................... 1-7
1.6-1. Connecting CR3000 to Vehicle Power Supply............................... 1-11
1.7-1. Schematic of CR3000 Grounds ...................................................... 1-12
1.9-1. Relay Driver Circuit with Relay..................................................... 1-16
1.9-2. Power Switching without Relay ..................................................... 1-17
1.10-1. CR3000 with wiring panel............................................................ 1-19
1.10-2. Loosen thumbscrews to remove CR3000 wiring panel from base 1-19
1.10-3. Disconnect internal battery from wiring panel. ............................ 1-20
1.10-4. Remove plate to expose lithium battery ....................................... 1-20
1.10-5. Remove battery cover and replace battery.................................... 1-21
3.3-1. Settling Time for Pressure Transducer ............................................. 3-8
3.4-1. Panel Temperature Errors............................................................... 3-10
3.4-2. Panel Temperature Gradients during -65 to 70 °C Change ............ 3-11
3.4-3. Panel Temperature Gradients during 75 to 25 °C Change.............. 3-11
3.4-4. Diagram of Junction Box................................................................ 3-17
3.5-1. Circuits Used with Bridge Measurement Instructions.................... 3-19
3.6-1. Model of Resistive Sensor with Ground Loop ............................... 3-20
3.7-1. Varying counts within pulse interval.............................................. 3-21
3.9-1. Instrument voltage measurement error performance illustrating
dependence upon input voltage.................................................................. 3-23
3.9-2. Comparison of the CR10X ± (0.X% of Full-Scale Range) and
CR1000 ± (0.X% of reading + Offset) voltage measurement accuracy
specifications for the (0 to 40) ºC temperature range................................. 3-24
6.4-1. Example Crossing Data.................................................................. 6-22
6.4-2. Crossing Data with Second Dimension Value................................ 6-23
6.4-3. Input Sample Vectors ..................................................................... 6-32
6.4-4. Mean Wind Vector ......................................................................... 6-33
6.4-5. Standard Deviation of Direction..................................................... 6-34
7.7-1. Input conditioning circuit for low-level and high level
period averaging ........................................................................................ 7-18
7.7-2. Conditioning Large Voltage Pulses................................................ 7-22
8-1. Dew Point Temperature over the RH Range for Selected
Air Temperatures....................................................................................... 8-11
8.2 Effect of RH Errors on Calculated Dew Point.................................... 8-11
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