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Table 1. Hour Meter Control Lines & Impedance
Specifications
Model Low Voltage High Voltage Min. Impedance
Maximum Minimum HRM+ HRM-
24VDC 5.0 VDC 15.0 VDC 90 kΩ 30 kΩ
Table 2. Hour Meter Control Logic
Key HRM HRM HRM Hour Icon
switch (+) (+) (+) meter
Off x x x Display only Steady
On V
H
xxOn Flashing
On x V
H
xOnFlashing
On x
x
V
H
On Flashing
On V
L
V
L
V
L
Display Flashing
or open or open or open only
!
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