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Revision F
4.3
Sensor Output Voltage Range
–
Combine Requirements
The auto header height control (AHHC) sensor output must be within a specific voltage range for each combine, or the
AHHC feature will not work properly.
Table 4.1 Combine Voltage Limits
Combine
Low Voltage Limit
High Voltage Limit
Range (Difference
between High and
Low Limits)
AGCO IDEAL
™
Series
0.5 V
4.5 V
2.5 V
Case IH 5088/6088/7088, 5130/6130/7130,
7010/8010, 7120/8120/9120,
7230/8230/9230, and 7240/8240/9240
0.5 V
4.5 V
2.5 V
Case IH 2588/2577
2.8 V
7.2 V
4.0 V
Challenger, Gleaner A, Massey Ferguson,
and IDEAL Series
0.5 V
4.5 V
2.5 V
CLAAS 500/600/700 Series
0.5 V
4.5 V
2.5 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
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 Case 23/2588 series, CLAAS
500/600/700 Series). For these models, check output voltage manually. Refer to or
