Chapter 10 Specifications
137
3
10
Cha
p
te
r 1
0
S
p
ecifi
cations
(1) General Specifications
Specifications
Chapter 10
Basic Specifications
No. of channels
(max.)
10 analog ch 4 pulse channels
Standard product configuration. Pulse grounds share common
ground with instrument.
Internal memory
capacity
Total 3.5 MW (mega words)
Maximum sampling
rate
10 ms/All channels
Timebase accuracy
±0.01%
External terminals
External Trigger Input, Trigger Output, Alarm Output and GND
Clock functions
Auto calendar, auto leap year judgment, 24-hour timer
Accuracy: ±50ppm (0
C to 40
C), Nominal value: ±10ppm (25
C)
Backup battery life
Approx. five years for clock and settings (@25°C, 77°F)
Conditions of
guaranteed accuracy
After 30 minutes warm-up
Defined after zero adjustment has been performed.
Operating tempera-
ture and humidity
0 to 40°C (32 to 104°F), 80% RH or less (non-condensating)
Temperature and hu-
midity range for guar-
anteed accuracy
Temperature 23±5°C (73±9°F), Humidity 80% RH or less (non-con-
densating)
Storage temperature
and humidity
Temperature -10 to 50°C (14 to 122°F), Humidity 80% RH or less
(non-condensating)
Period of guaranteed
accuracy
1 year
Operating
environment
Indoors, Pollution degree 2, up to 2000 m (6562-ft.) ASL
Dielectric strength
350 VAC for 15 seconds (between each input channel and chassis,
and between input channels)
Summary of Contents for LR8431
Page 2: ......
Page 20: ...Operating Precautions 12...
Page 44: ...2 5 Zero Adjustment 36...
Page 74: ...3 7 Viewing All Channel Settings in a List 66...
Page 88: ...4 5 About Recording Operation 80...
Page 120: ...6 6 Transferring Data to a Computer USB Drive Mode 112...
Page 126: ...7 2 Numerical Value Calculation Expressions 118...
Page 136: ...8 3 Making System Settings 128...
Page 144: ...9 5 Synchronous Measurements with Multiple Instruments 136...
Page 154: ...Chapter 10 Specifications 146...
Page 198: ...Appendix 11 Pulse Input Circuit Diagram A40...
Page 202: ...Index Index 4...
Page 203: ......