HD-200FL

Field-installation type optical dissolved oxygen meter (DO meter)

Optical sensors improve ease of maintenance.

Ideal for the management of aeration tanks at facilities such as wastewater treatment plants and industrial wastewater treatment facilities. Optical sensors do not require concerns about electrolyte replacement or membrane breakage. The system also offers further enhanced functionality, such as automatic recognition of membrane-specific coefficients characteristics when the sensor cap is replaced.

Division: Process Water
Manufacturing Company: HORIBA Advanced Techno Co., Ltd.

IC built-in memory sensor cap

Automatic recognition of membrane-specific coefficients eliminates the need to input them when replacing the sensor caps (fluorescent film).

Possible to be combined with a float-type holder

Self-cleaning action uses flow velocity of measured liquid preventing accumulated contamination.  The shape of the sensor prevents dirt and floc from clinging to the sensor part.

Possible to be combined with ultrasonic cleaners

Can be combined with an ultrasonic cleaner, which is effective for use in aeration tanks.  Furthermore, since the sensor is designed to be dropped into the holder, it offers ease of maintenance.

Strengths of the sensor

The sensor offers a longer lifespan compared to other measurement methods. Moreover, with an optical sensor, there are no concerns about membrane damage, and the membrane can be easily replaced by exchanging the entire cap. Three cleaning methods are available (water jet, air jet, and ultrasonic).

Indication converter specifications

ModelHD-200FL
Measuring methodOptical (fluorescent)
Measuring rangeDO: 0 to 20 mg/L      Resolution: 0.01 mg/L
Saturation: 0 to 200%    Resolution: 0.1%
Temperature: 0 to 50°C   Resolution: 0.1°C
Transmission
output
2 points 4 mA to 20 mA DC input/output isolated type Maximum load resistance 900 Ω
 Output 1: Dissolved oxygen concentration: Selection from preset ranges or free range input within measuring range.
 Output 2: Temperature: Free setting within a range between -10 and 110°C
 Occasional out for error: Hold or burnout to either 3.8 mA or 21 mA
 Transmission hold: In the maintenance mode, transmission signal is held at the latest value or preset value. In the calibration mode, transmission signal can be alive or held.
Contact
output
3 points No-voltage contact output Relay contact, SPDT (1c)
 Signal R1, R2: Selectable from upper limit alarm, lower limit alarm, ON/OFF control, currently holding of transmission output, and cleaning output.(The contact is closed during alarm operation, opened normally and while the power is down.)
 FAIL : Error alarm (Closed in the normal state, opened in the failure state or while the power is down.)
 Control operation Control width: 0.02 to 4.00 mg/L (±0.02 to ±2.00 mg/L)
Cleaning output1 point AC power control output ( Applied power supply voltage) Relay contact, SPST (1a)
 Contact function: Solenoid valve for cleaning control
External input1 point Contact shape: No-voltage "a" contact for open collector
 Contact function: External input for cleaning or transmission holding if cleaner is not attached.
Communication functionRS-485 2 wire system, isolated from the input/output circuit
Not isolated from transmission circuit
Temperature
compensation range
0 to 50°C
Calibration methodSpan calibration in the air Zero: Sodium sulte solution Span: Air or DO saturated water
Self-diagnosis functionCalibration error, sensor diagnosis error, converter error
Operating temperature range-20 to 55°C without freeze
Power supply100 to 240 V AC ±10% 50/60 Hz Power consumption: 20 VA (max)
StructureIP65 : Mounted on 50A pole or wall
Case: Aluminum alloy (coated with epoxy-denatured melamine resin), hood: SUS304
MassMain unit body: Approx. 3.5 kg   Hood, mounting brackets: Approx. 1 kg
Regulatory complianceCE marking, FCC
Compatible sensorDO-2000

*1: The standard for effect on the reading by the electromagnetic eld of the radiated radio frequency and HD-200FL by the conducted interference is within the measured dissolved oxygen value ± 0.4 mg/L.
*2: When the sensor cable, the transmission cable, or the contact input cable is extended by 30 m or more, the surge test under the EMC Directive for CE marking is not applied.
*3: An arrester (spark over voltage: 400 V) is implemented for transmission output, contact input, and communication. However, use a most suitable surge absorption element on the connection lines in accordance with the ambient environment, the situation of equipment installed, and the externally connected equipment.

 

Probe specifications

ModelDO-2000
Measurement principlesOptics (fluorescence)
Sample water0 to 50°C
Wetted materialSUS316、NBR、PVC
Response time90% response: Within 30 s  95% response: Within 60 s
MassApprox. 3.0 kg (incl. 10 m cable)

Sensor cap specifications (replaceable)

Model5700A
Wetted materialNBR, PMMA
MassApprox. 5.0 g
Membrane memoryBuilt-in memory in the membrane unit, automatic recognition

Request for Information

Do you have any questions or requests? Use this form to contact our specialists.

* These fields are mandatory.

Related products

CS-600F
CS-600F

Fiber Optic Type Chemical Concentration Monitor

CS-620F
CS-620F

Optical Fiber Type Hot Phosphoric Acid Concentration Monitor

CS-900
CS-900

Non-Contact Chemical Concentration Monitor

EMGA-921
EMGA-921

Hydrogen Analyzer

EMGA-Expert
EMGA-Expert

Oxygen/Nitrogen/Hydrogen Analyzer
(Flagship High-Accuracy Model)

EMGA-Pro
EMGA-Pro

Oxygen/Nitrogen Analyzer (Entry Model)

H-1 Series
H-1 Series

Field-installation type water quality measuring instruments

HC-200F
HC-200F

Field-installation Type Fluoride Ion Concentration Meter

HC-200NH
HC-200NH

Field-installation type ammonia nitrogen meter

HC-300F
HC-300F

Field-installation Type Fluoride Ion Concentration Meter

HD-200
HD-200

Field-installation type dissolved oxygen meter (DO meter)

HD-300
HD-300

Field-installation type dissolved oxygen meter (DO meter)

HD-480
HD-480

Panel-mount type dissolved oxygen meter (DO meter)

HD-960L
HD-960L

HF (Hydrofluoric Acid)  DO (Dissolved Oxygen) Monitor / Pure Water DO (Dissolved Oxygen) Monitor

HD-960LR
HD-960LR

Dissolved Oxygen Concentration Monitor Series for Semiconductor Manufacturing

HE-200C
HE-200C

Field-installation type electric conductivity meter (conductivity meter)

HE-200H
HE-200H

Field-installation type electric conductivity meter

HE-200R
HE-200R

Field-installation type electric resistivity meter (resistivity meter)

HE-300C
HE-300C

Field-installation type electrical conductivity meter (conductivity meter)

HE-300R
HE-300R

Field-installation type electric resistivity meter (resistivity meter)

HE-480C
HE-480C

Panel-mount type conductivity meter (conductivity meter)

HE-480C-GC
HE-480C-GC

Carbon Sensor Conductivity Meter (Low concentration type)

Corporate