Page
113
5.2.6
External Alarm Output
This output is used to control the external warning light included. The output is an OPEN/GROUND
type output. This means that when this output is off (the alarm is not active), this line is equivalent to
an OPEN circuit. When this output is on, this output is switched to GROUND. Thus, the external
warning light (or annunciator) is connected to this output and +12 Volts. The maximum current this
output can control is 0.11 Amperes, or 110 mA. Exceeding 110 mA will normally cause this output to
go to the open state, although it is possible to damage this output is the condition is not corrected.
5.2.7
Auxiliary Inputs
Your instrument includes 6 auxiliary inputs. Wire these inputs to your sensors for the auxiliary inputs
according to the sheets included with the auxiliary input sensors. Refer to the “Advice Before Starting
Your Installation” section at the front of this manual regarding assignment of the auxiliary inputs to the
various functions.
If you are using the auxiliary input for your own custom application, this input must be in the range of
0-5 Volts DC, and must not exceed 5.5 Volts. The scaling of this auxiliary display number n is set
using the “nSF” and “nOff” as described in the “Configuration Set Pages” section. If this input is not
used, the Aux limit should be set to zero on the “Set Limits” pages to prevent nuisance warnings.
CAUTION:
This input must not exceed 5.5 Volts. Although no damage will occur the accuracy of
the instrument will be adversely affected while an aux input exceeds 6.0 Volts.
5.2.8
Cylinder Head Temperature Probe Installation
Ring-terminal type CHT probes are installed by removing the spark plug, placing the sensor under it,
and re-installing the plug into the engine. Orient the sensor so that as much clearance as possible is
provided between its leads and the engine structure.
Bayonet type CHT probes (for Lycoming and Continental engines) are retained by a bayonet adapter.
This adapter is screwed into the engine, in a threaded hole near the bottom spark plug. This hole can be
identified by its solid bottom.
Do not use the primer hole to mount this adapter! If you are in doubt,
consult an expert!
The CHT probe is adjusted by turning the locking collar on the spring so that its tip
is pressed against the bottom of the CHT probe well when it is locked onto the adapter.
NOTE: To prevent false readings for inputs that are not used, it is recommended that unused CHT
inputs be shorted together. Unused EGT inputs may also be shorted together, or may be hooked up in
parallel with another EGT input so that the EGT Span calculation remains meaningful.
5.2.9
Exhaust Gas Temperature Probe Installation
Start by drilling an 1/8-inch diameter holes at the appropriate position in the exhaust manifold as
indicated by the engine manufacturer. If the manufacturer provides no guidance on the location of the
EGT probes, we recommend the following:
1) Position the probe 2-8 inches from the cylinder.
2) Although not critical, it is preferable to position all probes the same distance from the cylinder.
3) If possible, position the probes so that they are mounted on a straight (not curving) portion of the
exhaust manifold. The hose clamps fit slightly better on straight portions of the manifold.
Cont’d next page
Summary of Contents for 912 Dragonfly
Page 3: ...Page 2 ...
Page 4: ...Page 3 ...
Page 5: ...Page 4 ...
Page 25: ...Page 24 Drawing 1 ...
Page 27: ...Page 26 Drawing 2 ...
Page 29: ...Page 28 Drawing 3 ...
Page 31: ...Page 30 Drawing 4 ...
Page 33: ...Page 32 Drawing 5 ...
Page 35: ...Page 34 Drawing 6 ...
Page 37: ...Page 36 Note for Hydraulic Brakes see Appendix B Drawing 7 ...
Page 39: ...Page 38 Drawing 8 ...
Page 41: ...Page 40 Drawing 9 ...
Page 43: ...Page 42 Drawing 10 ...
Page 45: ...Page 44 Drawing 11 ...
Page 47: ...Page 46 Drawings 12A 12B ...
Page 49: ...Page 48 Drawing 13 ...
Page 51: ...Page 50 Drawing 14 ...
Page 53: ...Page 52 Drawing 15 ...
Page 55: ...Page 54 Drawing 16 ...
Page 57: ...Page 56 Drawing 17 ...
Page 59: ...Page 58 Drawing 18 ...
Page 61: ...Page 60 Drawing 19 ...
Page 63: ...Page 62 Drawing 20 ...
Page 65: ...Page 64 Drawing 21 ...
Page 67: ...Page 66 Drawing 22 ...
Page 69: ...Page 68 Drawing 23 ...
Page 71: ...Page 70 Drawing 24 ...
Page 73: ...Page 72 Drawing 25 ...
Page 75: ...Page 74 Drawing 26 ...
Page 77: ...Page 76 Drawing 27 ...
Page 79: ...Page 78 Wiring1 jpg Drawing 28a ...
Page 80: ...Page 79 Wiring2 jpg Drawing 28b ...
Page 81: ...Page 80 elecLights jpg Drawing 28c ...
Page 83: ...Page 82 Drawing 29 ...
Page 85: ...Page 84 Drawing 30 ...
Page 92: ...Page 91 Appendix B Brakes Manual for BX1320 BX1000 Appendix B Page 1 ...
Page 93: ...Page 92 Appendix B Page 2 ...
Page 94: ...Page 93 Appendix B Page 3 ...
Page 96: ...Page 95 Appendix B Page 5 ...
Page 97: ...Page 96 Appendix B Page 6 ...
Page 98: ...Page 97 Appendix B Page 7 ...
Page 104: ...Page 103 Figure 1a Description of Display Pages ...
Page 105: ...Page 104 Figure 1b Description of Display Pages ...
Page 138: ...Page 137 Appendix C EIS 4000 912 914 ...
Page 139: ...Page 138 Appendix C EIS 4000 912 914 ...
Page 140: ...Page 139 Appendix C EIS 4000 912 914 ...
Page 141: ...Page 140 Appendix C EIS 4000 912 914 End Appendix C ...
Page 155: ...Page 154 Appendix E2 Powerfin Prop Page 2 ...
Page 156: ...Page 155 Appendix E2 Powerfin Prop Page 3 ...
Page 157: ...Page 156 Appendix E2 Powerfin Prop Page 4 ...
Page 158: ...Page 157 Appendix E2 Powerfin Prop Page 5 ...
Page 159: ...Page 158 Appendix E2 Powerfin Prop Page 6 ...
Page 160: ...Page 159 Appendix E2 Powerfin Prop Page 7 ...
Page 161: ...Page 160 Appendix E2 Powerfin Prop Page 8 ...
Page 162: ...Page 161 Appendix E2 Powerfin Prop Page 9 ...
Page 163: ...Page 162 Appendix E2 Powerfin Prop Page 10 ...
Page 164: ...Page 163 Appendix E2 Powerfin Prop Page 11 End of Appendix E2 ...
Page 187: ...Page 186 By Memphis Soaring FIGURE 3 Common Signals ...