11.1 LR8400-20, LR8401-20, LR8402-20 Memory HiLogger Specifications
237
3
Chapter 11 Specifications
11
1. With 60-Hz digital filter, and burn-out detection disabled
[Unit: Hz]
1. Using U1-1 to -15, 2. Using U2-1 to -15,
3. Using U3-1 to -15, 4. Using U4-1 to -15
Detecting level 2-level selectable
HIGH 1.0 Vmin. LOW 0 to 0.5 V / HIGH 4.0 Vmin. LOW 0 to 1.5 V
Measurement pa-
rameter
Pulse/digital input independently selectable for each channel
Pulse input
Measurement
range/Resolution
Pulse input period Without filter (Off), at least 200 s (both H and L levels at least 100 s)
With filter (On), at least 100 ms (both H and L levels at least 50 ms)
Slope Either rising or falling edge pulse detection can be set for each channel
Measurement
mode
Integrated count, Revolution variation
Integrated count Additive:
Counts cumulative (integrated) va
lue from measurement start
Instantaneous:
Counts instantaneous value at every recording interval (the integration
value is reset at each interval)
Revolution variation Counts the input pulses per second to obtain revolutions
Anti-chatter filter Settable On/Off for each channel
Digital Input
Measurement mode Records 1 or 0 at each recording interval
Cut-off frequency
Measurement
Object
Range
Max. Res-
olution
Measurable Range
Pulse Integra-
tion
1,000 Mc pulse f.s. 1pulse 0 to 1,000 Mpulse
Revolution Vari-
ation
5,000/n [r/s] f.s 1/n [r/s] 0 to 5,000/n [r/s]
n = pulses/revolution, from 1 to 1,000
: Not settable
Recording interval
10
ms
20
ms
50
ms
100
ms
200
ms
500
ms
1 s 2 s 5 s 10 s 20 s 30 s 1 m
2 m
or
more
Cut-off
fre-
quency
Up to 15
chan
nels
1
20.0k 13.0k 4.9k 2.4k 1.2k 60 60 60 60 60 10 10 10 10
Up to 30
chan
nels
2
20.0k 13.0k 4.9k 2.4k 1.2k 60 60 60 60 60 60 10 10
Up to 45
chan
nels
3
20.0k 13.0k 4.9k 2.4k 1.2k 60 60 60 60 60 60 10
Up to 60
chan
nels
4
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