YOKOGAWA µR1800 User Manual

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IM 4H3B1-01E
1
0. GENERAL SPECIFICATIONS
Note : Recording span is 180mm.
Accuracy in Case of Scaling:
Accuracy during scaling (digits) =
measuring accuracy (digits) × multiplier + 2 digits (rounded up)
where the multiplier = scaling span digits / measuring span digits
Example: DCV 6V range
measuring span: 1.000 to 5.000V
scaling span: 0.000 to 2.000
measuring accuracy = ± (0.3% × 5V + 2 digits)
± (0.015V [15 digits] + 2)
± (17 digits)
multiplier = 2000 digits (0.000 to 2.000) / 4000 digits (1.000 to
5.000V) = 0.5
Accuracy during scaling = 17 digits × 0.5 + 2 = 11 digits (rounded up)
Maximum Allowable Input Voltage:
Less than 2VDC ranges and TC ranges: ±10VDC (cont.)
6V to 20VDC: ±30VDC (cont.)
Reference Junction Compensation:
INT/EXT selectable (per channel)
Reference Junction Compensation Accuracy (above 0°C):
Type R, S, B, W: ±1°C
Type K, J, E, T, N, L, U: ±0.5°C
Measurement Interval:
A/D Integration Time: AUTO: 20ms (50Hz) or 16.7ms (60Hz), selected automatically
50Hz: 20ms
60Hz: 16.7ms
100ms (dot model)
TC Burnout: ON/OFF selectable (per channel).
Burnout upscale/downscale selectable (common for all channels).
Normal: less than 2kΩ, burnout: more than 10MΩ.
Measuring current: approx. 100nA.
Filter: pen : Signal damping (ON/OFF selectable per channel, in case of ON: time constant
from 2, 5, 10 sec selectable per channel).
dot : Moving average (ON/OFF selectable per channel, in case of ON: averaging times
from 2 to 16).
RECORDING and PRINTING
Recording Method: pen : Disposable felt pens, plotter pen
dot : 6 Color wire dot
Pen Offset Compensation: ON/OFF selectable, for pen model only
Effective Recording Width :180mm
Chart: plain-paper Z-fold chart (20m)
Step Response Time: Less than 1.5sec (acc. to IEC TC85 method).
RTD PT100 measurement accuracy
± (0.3% of recording span)
meas. current JPT100
JPt50
Cu10
(Cu1 to 6)
Cu25
± (0.15% of rdg + 0.3°C)
± (0.3% of rdg + 0.5°C)
± (0.4% of rdg + 1.0°C)
± (0.3% of rdg + 0.8°C)
= 1mA
0.1°C
pen: dead band: 0.2% of
recording span
dot: 0.1 mm
A/D Frequency
pen model
6 dot model
12 dot model
18 dot model
24 dot model
—
2.5s
5s
10s
10s
125ms
2.5s
2.5s
2.5s
2.5s
50/60Hz100ms

YOKOGAWA µR1800 Specifications

General

Brand	YOKOGAWA
Model	µR1800
Category	Data Loggers
Language	English