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2-1

IM 12F5A1-01E

2. SPECIFICATIONS

2.1 StandardSpecications

2.1.1 FC400GFreeAvailableChlorineAnalyzer(Non-ReagentType)

MeasuredObject: Freechlorineintapwater

Measuring System: Polarographic method using rotating electrode

Display Method: Digital (3 1/2 digit LCD) display

Measuring Range: 0 to 3 mg / l

Output Range: Can switch between arbitrary ranges(each between 0 to 1 mg/l and 0 to

3 mg/l). Default ranges at shipping time are:

Range 1: 0 to 2 mg/l, Range 2: 0 to 3 mg/l

OutputSignal:  4to20mADC(loadresistance:550Ωorless)or1to5VDC(output 

   resistance:300Ωorless),isolated

Contact Output: 2 points, Dry contact

EventofError; Excessivedi󰀨usioncurrentvalue,measuredtemperatureerror,applied

voltage error, converter error, and temperature compensation range over

Maintenance; Any modes other than measurement (MEAS) mode

Contactcapacity; 250VACmax.,1Amax.,125VAmax.(resistanceload)  

220VDCmax.,1Amax.,60Wmax.(resistanceload)

Mainunitpower

OFF

MainunitpowerON

–

Duringnon-operation In operation

Event of Error Open Closed Open

Maintenance Closed Open Closed

Contact Input: Remote range switching:

Switching between 2 preset ranges (range 1 and range 2)

0 V DC or contact open: Range 1

5 V DC (input impedance 250 kΩ):Range2

Sample Conditions:

Temperature; 0 to 50 °C (Temperature compensation range; 0 to 40 °C)

pH; 6.5to7.5(seeFigure2.1)

Flow Rate; 0.1 to 2.5 l/min

Pressure; 1 to 150 kPa

100 to 750 kPa

(for the case where dedicated sampling system ST401G is provided)

Conductivity; 100to300μS/cm(seeFigure2.2)

SS (Suspended Solid); 10 mg/l or less

YOKOGAWA FC400G User Manual

Questions and Answers: