YOKOGAWA UV700G, User Manual

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<2.Specification>
2-1
IM 12K01B02-01E
2. Specification
2.1 Standard Specification
Measurement : Organic pollutants in wastewater.
Measurement method:
Dual optical path, dual wavelength, rotary cell length modulation method
Measurement wavelength:
Ultraviolet (UV): 253.7 nm
Visible light (VIS): 546.1 nm
Light source: Low pressure mercury-vapor lamp
Detector: Silicon photo cell, flow-through type
Measuring range (corrected for 10 mm cell)
UV/VIS absorbance 0-0.1 to 0-5.0 Abs
Display: Graphic LCD with touch screen,
320

240 dot, with backlight
Indication: UV absorbance, VIS absorbance, UV- VIS absorbance, COD
concentration, turbidity
Resolution: 0.0001 Abs (factory default) or 0.001 Abs
COD conversion: Conversion equation
Y = a

bX
where
Y
= COD concentration
X
= absorbance (UV-VIS)
Turbidity conversion: Conversion equation
Y = a

bX
where
Y
= turbidity,
X
= absorbance(VIS)
Analog output:
Number of outputs: 3
Functions: 3 functions selectable:
UV absorbance / VIS absorbance/ UV-VIS absorbance / COD
concentration / turbidity
Specifications: 4-20 mA DC or 0-16 mA DC, isolated
(non-isolated between channels)
Contact output:
Number of outputs: 6
Functions:
2 functions fixed:
Power off, maintenance status
4 functions selectable:
Total alarm / COD high alarm / turbidity high alarm / light souse
malfunction / no sample / cleaning motor error / analyzer error
Descriptions:
Power off:
Activated when power off occurs
Maintenance status:
Activated when instrument is in maintenance or calibration mode or
when MAINTENANCE switch is turned on
Total alarm:
Cleaning motor error, light source malfunction and / or analyzer error