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Chapter 10 Specifications
169
3
10
C
h
a
p
ter
10
S
p
eci
ficat
io
ns
Measurement
accuracy
• Voltage/heat flow: ±0.1% f.s. (
For the
1-5
V
range, f.s. = 10 V
)
• Thermocouple:
K, J, E, T: (-200
°
C or higher and less than -100
°
C)
±
1.5
°
C
(-100
°
C or more) ±1.0
°
C
N: (-200
°
C or higher and less than -100
°
C) ±2.2
°
C
(-100
°
C or more) ±1.2
°
C
R, S: (0
°
C or higher and less than 300
°
C) ±4.5
°
C
(300
°
C or more) ±2.2
°
C
B: (400
°
C or higher and less than 1,000
°
C) ±5.5
°
C
(1000
°
C or more) ±2.5
°
C
• Reference junction compensation accuracy:
±0.5
°
C (Horizontal placement)
±1
°
C (Upright placement)
(Add to thermocouple measurement accuracy when internal RJC
is enabled.)
Temperature
characteristic
Add (Measurement accuracy × 0.1) /°C to measurement accuracy
Reference junction
compensation
Internal/External selectable (for thermocouple measurements)
Digital filter
Off, 50 Hz, 60 Hz (cut-off frequency set automatically according to
recording interval)
Cut-off frequency
Input resistance
1 M
Ω
±5% (broken wire detection disabled, for voltage, heat flow,
and thermocouple measurements)
At least 800 k
Ω
(with broken wire detection enabled for thermocou-
ple measurements)
Normal mode
rejection ratio
50 dB minimum
(with 50 Hz input with 5 s recording interval, and 50 Hz digital filter
enabled)
(with 60 Hz input with 2 s recording interval, and 60 Hz digital filter
enabled)
Measurement Input Section
[Hz]
Recording
interval
Digital filter
Recording
interval
Digital filter
60
Hz
50
Hz
Off
60
Hz
50
Hz
Off
10 ms
11.56
k
11.56
k
11.56
k
1
s
108.2
108.2
11.56
k
20 ms
5.78
k
5.78
k
2
s
60
54.03
50 ms
2.216
k
2.216
k
5
s
60
50
100 ms
1.096
k
1.096
k
10
s
60
50
200 ms
542.5
542.5
20
s or more 10
10
500 ms
216.6
216.6
Summary of Contents for LR8432-20
Page 1: ...EN LR8432 20 HEAT FLOW LOGGER Instruction Manual Jan 2016 Edition 1 LR8432B980 00 16 01H...
Page 2: ......
Page 22: ...Operating Precautions 14...
Page 50: ...2 5 Zero Adjustment 42...
Page 88: ...3 7 Viewing All Channel Settings in a List 80...
Page 104: ...4 5 About Recording Operation 96...
Page 154: ...7 4 Waveform Calculation Formula 146...
Page 164: ...8 3 Making System Settings 156...
Page 232: ...Appendix 12 Heat Flow A44...
Page 236: ...Index Index 4...
Page 237: ......
Page 238: ......