YOKOGAWA RC400G, Руководство пользователя

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<2. Specifications>
2-1
IM 12F4A1-01E
2. Specifications
I
n this chapter, specifications are given for the RC400G Residual Chlorine Analyzer, the RC401G Reagent
Tank and others.
2.1 RC400G Residual Chlorine Analyzer
n
Standard specifications
Measurement object: Free chlorine or residual chlorine (total chlorine) in water
Measurement method: Rotating electrode type polarographic system
Measurement range: 0 to 10 mg/l (mg/l used as concentration units per JIS K0101 and
municipal water test methods)
Output range: Can be freely set within ranges with spans of 1 mg/l or greater. (Range
set when shipment. No.1: 0 to 5 mg/l No.2: 0 to 10 mg/l. Allows selection
between 2 ranges (selected with contact input signal).
2-line-segment output available: Any desired point between 0% and
100% of measurement span can be set as the 50% point of the output
range.
Output signal: 4 to 20 mA (load resistance, 550 Ω Max.) or 1 to 5 V DC (output
resistance, 300 Ω Max.), isolated
Display range: -1.00 to 12.00 mg/l
Display method: Digital display (4-digit LED)
Output contacts: Voltage-free (“dry”) contacts
Contact rating: Max. 250 V AC, Max. 2 A, Max. 125 VA (resistive load)
Max. 220 V DC, Max. 2 A, Max. 60 W (resistive load)
Input contacts: Voltage-free (“dry”) contact
ON resistance: 200 Ω Max.
OFF resistance: 100 kΩ Min.
Open circuit voltage: 10 V
Closed circuit current: 100 mA
Automatic zero calibration: Zero calibration using activated charcoal filter (optional)
Contact inputs:
Remote range switching: Switching between 2 preset ranges (range 1 and range 2)
Contact open: Range 1
Contact closed: Range 2
Contact outputs:
FAIL contact: Activate when concentration over range, measurement
temperature error, no liquid in flow cell converter error, temperature
compensation over range, setting upper limit exceeded
Range switching contact
MAINT contact:
Activate when analyzer is in maintenance mode
Main power OFF Main power ON
--- Not operating Operating
FAIL contact Open Closed Open
MAINT contact Closed Open Closed
14th Edition : Jul. 15, 2020