HD-200FL (Four-Wire Analyzer)

Specifications

Model

HD-200FL

Combined sensor

5700 A optical DO sensor

Combined probe

DO-2000

Measurement range

Dissolved oxygen concentration:
 0 mg/L to 20 mg/L (Display range: 0 mg/L to 22 mg/L)
 Display resolution: 0.01 mg/L
Saturation ratio:
 0% to 200% (Display range: 0% to 200%)
 Display resolution: 0.1%
Temperature:
 0°C to 50°C (Display range: -10°C to 110°C)
 Display resolution: 0.1°C

Transmission output

Number of output: 2
(The negative terminals for transmission outputs are internally connected at the same electric potential)
Output type: 4 mA to 20 mA DC: input/output isolated type
Load resistance: Maximum: 900 Ω

Contact output

Number of output: 3
Output type: No-voltage contact output
Contact type: Relay contact; SPDT (1c)
Output capacity: 250 V AC 3 A, 30 V DC 3 A (resistance load)

Cleaning output

Number of output: 1
Output type: AC power control output ( Applied power supply voltage)
Contact type: Relay contact; SPST (1a)
Output contact capacity: 250 V AC 3 A, 30 V DC 3 A (resistance load)
External instrument: Solenoid valve for cleaning control

Contact input

Number of input: 1
Contact type: No-voltage "a" contact for open collector

Communication function

Communication type: RS-485
Signal type:
 2 wire system, isolated from the input circuit
 Not isolated from transmission circuit

Temperature compensation

Temperature compensation range: 0°C to 50°C
Temperature calibration: 1 point calibration comparing to reference thermometer

Calibration

Calibration method:
 ・Span calibration in the air
 ・Zero: Sodium sulfite solution
 ・Span: Air or DO saturated water

Self-check

Calibration error
Electrode diagnostic error
Meter error

Operating temperature range

-20°C to 55°C (without freeze)

Power supply

Power supply voltage range: 90 V to 264 V AC 50/60 Hz
Power consumption: 20 VA(max)

Compatible standards

CE marking, FCC Rules

Structure

Installation: Outdoor installation type
Installation method: Mounted on 50A pole or wall
Protection code: IP65 IEC60529, JIS C0920
Case material: Aluminum alloy (coated with epoxy-denatured melamine resin)

External dimensions

180 (W) x 155 (H) x 115 (D) mm (excluding the fittings)

Mass

Main body: Approx. 3.5 kg; cover and fittings: Approx. 1 kg

Note 1:
The standard for effect on the reading by the electromagnetic field of the radiated radio frequency and by the conducted interference is within the measured dissolved oxygen value ± 0.4 mg/L.

Note 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.

Note 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

Product name

Optical DO probe

Model

DO-2000

Measuring method

Optical sensor

Measurement range

Dissolved oxygen: concentration 0 mg/L to 20 mg/L
Saturation range: 0% to 200%
Temperature: 0°C to 50°C

Material

SUS316, NBR, PVC

Measurement condition

Sample pressure: 0 MPa to 1.0 MPa

Operating temperature range

0°C to 50°C

External dimensions

Φ43×L230 mm

Mass

Approx. 3.0 kg

Sensor

Product name

Optical DO sensor

Model

5700

Material

NBR, PMMA

Mass

Approx. 1.5 kg (with 10 m cable)

Memory

Embeded memory, Automatic data translat