Operator`s manual

I-1
21X INDEX
* Modes, see Modes
1/X [Instruction 42] 10-2
101 Thermistor Probe
Programming example 7-11
107 Thermistor Probe [Instruction 11] 9-5
Programming examples 7-2, 7-12
12V terminals OV-3
207 Relative Humidity Probe [Instruction 12] 9-6
Programming example 7-3
227 Soil Moisture Block
Programming example 7-10, 8-3
3 Wire Half Bridge [Instruction 7] 9-4
Programming example 7-6
4 Wire Full Bridge [Instruction 6] 9-4
6 Wire Full Bridge [Instruction 9] 9-5
Programming example 7-8
5th Order Polynomial [Instruction 55] 10-5
Programming example 7-11
A
A*X + B Scaling Array [Instruction 53] 10-4
A04 SDM-A04 8-5, 9-14
ABS(X) [Instruction 43] 10-3
Absolute Value, Taking 10-3
AC excitation, Resistance measurements
requiring 13-19
AC Half Bridge [Instruction 5] 9-3, 13-19
Programming examples 7-11, 8-3
AC Noise, Eliminating 13-1
Activate Serial Data Output [Instruction 96] 4-1,
12-6
Alkaline battery power supply 14-2
AM416 Input Multiplexer 8-3
Analog Inputs OV-2
Analog Output [Instruction 21] OV-3, 9-8
SDM-A04 8-5, 9-14
Analog to Digital (A/D) conversion 13-1
AND construction, Logical 3-5
Anemometer (Photochopper output)
Programming example 7-3
ASCII
Program listing (*D Mode) 1-7
vs. Binary 5-1
Characters 6-4
Definition A-1
Dumping (in Telecommunications Mode) 5-3
Standard 6-4
Table D-1
Transmission 6-4
Average - [Instruction 71] 11-1
Programming example OV-13
Computing running 8-1
B
Battery power options
Alkaline D cells 14-2
External 14-4
Lead acid pack 14-3
Solar panels with 21XL 14-4
Vehicle power supply 14-4
Battery Voltage - [Instruction 10] 9-5
Baud rate
Definition A-1, 6-4
Output Codes 4-1, 4-2
Binary telecommunications C-1
Block Move - [Instruction 54] 10-4
Programming examples 8-1, 8-6
Branching, Logical AND or OR 3-4
Bridge measurements 9-3
3 Wire Half Bridge 100 ohm PRT 7-6
4 Wire Full Bridge (Pressure Transducer) 7-8
4 Wire Full Bridge 100 ohm PRT 7-7
4 Wire Half Bridge 100 ohm PRT 7-5
6 Wire Full Bridge (Lysimeter) 7-9
Comparison of bridge measurement
instructions 13-17
Diagram of bridge measuring circuits 13-16
AC excitation 13-19
Bridge Transform - [Instruction 59] 10-6
Programming example 7-11
Burst Measurement [Instruction 23] 9-9
C
C20 Cassette Interface 4-5
Cables/Leads
Avoid PVC insulated conductors 13-9
Lead length on signal settling time,
Effect of 13-3
Tipping bucket rain gauge with long leads
programming example 7-4
Calibration procedures for 21X 14-6
Cassette recorder 4-4
Cautionary Notes vii
CD16 SDM-CD16 9-14
Channels
Analog OV-2
Checksum 5-2