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3.8.1
Sensor Output Voltage Range – Combine Requirements
The auto header height control (AHHC) sensor output must be within a speci
fi
c voltage range for each combine, or
the AHHC feature will not work properly.
Table 3.13 Combine Voltage Limits
Combine
Low Voltage Limit
High Voltage Limit
Range (Difference
between High and
Low Limits)
Challenger, Gleaner A, Massey Ferguson
0.5 V
4.5 V
2.5 V
Case IH 5088/6088/7088,
5130/6130/7130, 7010/8010,
7120/8120/9120, and 7230/8230/9230
0.5 V
4.5 V
2.5 V
Case IH 2588/2577
2.8 V
7.2 V
4.0 V
Gleaner R and S Series
0.5 V
4.5 V
2.5 V
John Deere 60, 70, S, and T Series
0.5 V
4.5 V
2.5 V
Lexion 500/600/700 Series
0.5 V
4.5 V
2.5 V
New Holland CR/CX - 5 V system
0.7 V
4.3 V
2.5 V
New Holland CR/CX - 10 V system
2.8 V
7.2 V
4.1–4.4 V
NOTE:
Some combine models do not support checking sensor output voltage from the cab (early 23/2588 series,
Lexion 500/600/700 series). For these models, check output voltage manually. Refer to
Voltage Range (One-Sensor System), page 101
or
Manually Checking Voltage Range (Two-Sensor
.
Manually Checking Voltage Range (One-Sensor System)
The one-sensor system is standard for the FM100 Float Module. If equipped with the optional two-sensor system,
refer to
Manually Checking Voltage Range (Two-Sensor System), page 104
.
The output voltage range of the auto header height control (AHHC) sensors in some combines can be checked from
the cab. For instructions, refer to your combine operator’s manual or the AHHC instructions later in this document.
To manually check the sensor’s output voltage range,
follow these steps:
1. Position the header 6 in. (150 mm) above the ground,
and unlock the
fl
oat module
fl
oat.
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Revision A
Summary of Contents for FlexDraper FD1 Series
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