<2. SPECIFICATIONS>
2-1
IM 12E04A02-02E
2. SPECIFICATIONS
2.1 Standard
Speci
fi
cations
Application: Turbidity
of
fi
nished water, sewage, river water, and water used in general
processes
Measuring Method: Surface scattering-light measurement
Measuring Range:
0-2 to 0-2000 mg/l (degrees)
Display:
4-digit LED display (resolution; 0.01 mg/l (degrees), maximum display
value; 2200 mg/l (degrees))
Display Unit:
“mg/l (default)” or “degrees”, selectable
Note:
“FTU” unit, a turbidity unit when formazin standard is used, is also
available. Since the instrument uses kaolin standard, reference sensitivity
calibration using formazin standard is required for the FTU display.
Output Range:
3 range switching
Remote or local (default) range switching, selectable
Auto or manual (default) range, selectable
For auto range, changeover point is user con
fi
gurable.
3 ranges are user con
fi
gurable. The span should be 20% or more of the
upper range limit or 2 mg/l (default), whichever is greater.
Analog Output Signal: 4 to 20 mA DC (maximum load resistance: 550
Ω
) or 1 to 5 V DC (output
resistance: 100
Ω
or less)
Digital Output Signal: Conforms to RS-232C
Communication Speci
fi
cations:
Data format:
ASCII
Data length:
8 bits
Baud rate:
1200 bps
Parity: None
Start bit:
1 bit
Stop bit:
2 bits
Transmission method: Mono-directional (transmission only), asynchronous system
Communication Data:
Measured turbidity values: Converter's display data (turbidity indicated value) are transmitted.
Data consists of 6 characters including signs and decimal points.
Example
1:
#0050.0
C
R
L
F
Example
2:
#001.00
C
R
L
F
Example
3:
#-00.50
C
R
L
F
Example 4:
#_O.L_ _
C
R
L
F
Note: A space code is transmitted by “_”
High/low alarm signal: Transmitted continuously when high/low limit is detected.
#ALARMCRLF
Range output signal: Transmitted once when range is changed over.
Range 1: #RANGE1
C
R
L
F
Range 2: #RANGE2
C
R
L
F
Range 3: #RANGE3
C
R
L
F
Auto cleaning/calibration signal: Transmitted once when auto cleaning or calibration starts
and ends. Note that this is not transmitted when cleaning or calibration
is manually performed in <MAINT.> mode.
Start:
#CLEANING_START
C
R
L
F
3rd Edition : May. 31, 2010-00
Summary of Contents for Vigilant Plant EXA TB Series
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