On-line Monitoring system

Name

Organic Pollutant Monitor

Model name

OPSA-150

Measurement items

UV absorbance, VIS absorbance, Converted COD level, Converted TURB level

Principle

2 light path 2 wavelength cell length modulation

Measurement wavelength

UV: 253.7 nm, VIS: 546.1 nm

Construction of analysis section

Rotary type

Range (Equivalent to a cell length of 10 mm)

UV absorbance / VIS absorbance
0 to 0.1 Abs - 0 to 5.0 Abs (Can be set 0.1 Abs increments)

Resolution

0.0001 Abs (Can be set to 0.001 Abs)

Repeatability

Within ±2% of full scale (within ±5% if full scale is 2.6 to 5.0 Abs)

Linearity

Within ±2% of full scale (within ±5% if full scale is 2.6 to 5.0 Abs)

Stability

Within ±2% of full scale in 24 hours (within ±4% in 24 hours if full scale is 2.6 to 5.0 Abs)

Response time

T 90 within 1 minute (flow rate of 5 L/min)

Cleaning method (cleaning cycle)

Automatic cleaning via wipers (continuous cleaning)

Display methods

LCD display: 320 x 240 monochrome crystal display with backlight (touch panel type)
Display details: UV absorbance, VIS absorbance, UV-VIS absorbance (Absorbance can be changed to absorption constant (SAC: m-1), Converted COD level, Converted turbidity level

Calibration method

Solution calibration (calibration solution inserted in ampule) via zero solution, span solution (single touch calibration)

Sample conditions

Temperature

2 to 40°C*

Sample flow rate

Minimum 2 L/min, Maximum 20 L/min

*Use a heating device to prevent sample freezing.

Ambient conditions

Ambient temperature: 0 to 40°C, Ambient humidity: 85% or less

Analog output

No. of outputs

3 outputs (standard)

Up to 3 can be chosen from UV absorbance, VIS absorbance, UV-VIS absorbance, Converted COD level, and Converted TURB level outputs

DC 4 - 20 mA, or DC 0 - 16 mA, isolated output (no isolation between each channel), maximum resistance load: 600Ω

Alarm and status outputs

6 outputs (standard)

Up to 4 can be chosen from power failure, maintenance (standard and fixed), batch alarm, COD maximum limit alarm, TURB limit alarm (standard), light source error, sample failure, cleaning motor error, and analyzer error outputs

Power failure...occurs when power fails Total alarm...cleaning motor error, light source error, analyzer error Maintenance...occurs when entering maintenance or correction mode, or when the maintenance switch has been turned on

Specification

Dry contact output, NO contact
Contact rating: AC 125 V 0.3 A, DC 30V 1 A (with resistance load) Each output has an independent COM interface

Contact input

No. of inputs

2 inputs (standard)

Sample failure float switch input, time correction input

No-voltage contact input (can connect to open collector), isolated input
On resistance: Maximum 100Ω, Open voltage: DC 26 V, Short circuit current: 13 mA

Communication

Interface: RS-232C Compatible Communication speed: 19200 bps

Data memory

Values of measurement items are stored in the main unit"s data memory. Data can also be transferred to a Compact Flash card.

1 minute or 1 hour

Every hour*

1 minute intervals0 for 10 day"s data, 1 hour intervals0 for 1 year" s data

*The most recent data is saved to memory.

Light source / Detector

Light source: Low pressure mercury lamp / Detector: Silicon photo cell

Tubing connections

Rp-1/2 socket

Overflow outlet (1)

13 A nominal diameter socket

Rc-1/2 socket

Drain outlet

50 A nominal diameter socket

Overflow outlet (2)

20 A nominal diameter socket

Rc-1/2 socket

Construction

For outdoor installation

Material of parts in contact with sample

SUS, PVC, PP, CR, SiO2

Power source

AC 100 V to AC 230 V ±10%, 50/60 Hz

Power consumption

AC 100 V to AC 120 V: 45 VA maximum AC 200 V to AC 230 V: 60 VA maximum

Weight

Operating section: Approx. 5.0 kg Analyzer section: Approx. 5.6 kg

External dimensions

Operating section

240 (W) x 105 (D) x 320 (H)

200 (W) x 180 (D) x 404 (H) (units: mm) (excludes protruding sections)

Color/Finish

Munsell 5PB8/1

Installation conditions

• Install on a flat stable surface away from sources of vibration and shocks.
• Ambient air must not contain dust, mist or corrosive gases.
• Use at atmospheric pressure.
• Out of direct sunlight.
• An area with good air circulation.
• An altitude of less than 2000 m.