Fluke Lawn Mower 2635A Benutzerhandbuch
2635A
Users Manual
A-16
Digital and Alarm Outputs
The specifications for the digital and alarm outputs are provided in the following
paragraphs.
paragraphs.
Output Logic Levels
Logical “zero”:
0.8V max for an Iout of -1.0 mA (1LSTTL load)
Logical “one”:
3.8V min for an Iout of 0.05 mA (1LSTTL load)
For non-TTL loads: 1.8V max for an Iout or -20 mA
Logical “zero”:
Logical “zero”:
3.25 max for an Iout of -50 mA
Isolation
none
Real-Time Clock and Calendar
The specifications for the real-time clock and calendar are provided in the following
paragraphs.
paragraphs.
Accuracy
Within 1 minute per month for 0°C to 50°C range
Battery Life
>10 unpowered instrument years for 0°C to 28°C
>3 unpowered instrument years for 0°C to 50°C
>2 unpowered instrument years for 50°C to 70°C
Environmental Specifications
The environmental specifications are provided in the following paragraphs.
Warmup Time
1 hour to rated specifications
15 minutes when relative humidity is kept below the rated maximum minus 20% (e.g.
below 70% for a 90% maximum rating).
below 70% for a 90% maximum rating).
Operating Temperature
0°C to 60°C
Storage Temperature
-40°C to +75°C
Instrument storage at temperature extremes may necessitate adding up to 0.008% to the
dc and ac voltage accuracy specifications. Alternatively, any resulting shift can be
compensated for by recalibrating the instrument.
dc and ac voltage accuracy specifications. Alternatively, any resulting shift can be
compensated for by recalibrating the instrument.