Curtis 803 User Manual

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HRM (+) (for use with a switched positive voltage)
Pin 6 connects to a high voltage as defined in Table 1
to activate the hour meter. Leaving Pin 6 open or
connecting it to a low voltage gives control of the hour
meter to the Hour Meter (–) input. See Table 2.
.2385*7*5>
HRM (–) (for use with a switched ground)
Pin 1 connects to a low voltage level as defined in
Table 1 to activate the hour meter. Leaving Pin 1 open
or connecting it to high voltage gives control of the hour
meter to the Hour Meter (+) input.
.2!*0&<
Pin 3 connects in series with the lift coil circuit (or
the circuit to be switched at empty). For holding relay
(J), Pin 3 must be electrically closer to battery +
than Pin 4
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Pin 4 also connects in series with the circuit to be
switched at empty.
HRM HRM+ & Keyswitch
Enabled Disabled Enabled Disabled
Model
V
L
Resistance
V
H
Resistance
V
H
V
L
Single
Voltage
Untis
12V <1.5V <1.8kOhm >5V >6.8kOhm >8.5V <2.5V
24V <2.3V <5.5kOhm >7.5V >20kOhm >8.5V <2.5V
Dual
Voltage
Untis
12/24V <1.7V <4.4kOhm >5.5V >20kOhm >8.5V <2.5V
24/36V <2.3V <5kOhm >7.5V >20kOhm >8.5V <2.5V
24/48V <2.3V <5kOhm >7.5V >20kOhm >8.5V <2.5V
36/48V <2.3V <3.2kOhm >7.5V >20kOhm >8.5V <2.5V
72/80V <3.3V <5.8kOhm >11V >20kOhm >11.5V <3.5V
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Curtis 803 Specifications

General

Brand	Curtis
Model	803
Category	Measuring Instruments
Language	English