YOKOGAWA DO71 Manual page 15

Optical dissolved oxygen, modbus communication
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Address
Item name
5517
Calibration Mode
5521
Cal0
5523
T0
5525
Reserved
nd
5527
O
-2
2
nd
5529
Cal-2
nd
5531
T2
5533
pATM
nd
5535
O
-2
Unit
2
5703
Measurement Mode
6437
Calibration counter
6457
Serial Number YPA
All Rights Reserved. Copyright © 2022, Yokogawa Process Analyzers Europe B.V.
MODBUS Communication – Hold Register DO
Data type Access Value / description
Uint32
R/W
Float
R/W
Float
R/W
Uint32
R
Float
R/W
Float
R/W
Float
R/W
Float
R/W
Uint32
R/W
Uint32
R/W
Uint32
R/W
ASCII
R
Measurement mode during calibration:
0:
Humid
1:
Dry
D: 0 (for wide range sensors)
D: 1 (for trace range sensors)
Calibration value of Phase shift at the
low oxygen calibration point
L: 30.01
Calibration value of Temperature at the
low oxygen calibration point
L: 10.01
Calibration value of Oxygen
concentration (unit defined in HR5535)
at the high oxygen calibration point
L: 0.001
Calibration value of Phase shift at the
high oxygen calibration point
L: 10.01
Calibration value of Temperature at the
high oxygen calibration point
L: 10.01
Calibration value of Pressure (in hPa) at
the high oxygen calibration point
L: 901
0x 0800 0000
% DO saturation
Remark:
nd
1)
The unit for the O
-2
value, for set
2
values see HR2089
D: % DO saturation
Measurement mode:
0:
Humid
1:
Dry
D: 0
Counts the number of Low/High Point
Calibrations
D: 0
Alphanumeric Serial Number code:
16 bytes, 8 addresses
TI 12J06J01-00EN-P
15
H: 79.99
H: 29.99
H: 299.999
H: 49.99
H: 29.99
H: 1099

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