HORIBA HD-200 Field-installation type dissolved oxygen meter (DO meter)

Model

HD-200

Combined sensor

5505, 5510 (A bipolar diaphragm type polarography sensor)

Combined probe

DO-1100

Measurement
range

Dissolved oxygen
concentration

0 mg/L to 20 mg/L (Display range: 0 mg/L to 22 mg/L)

Saturation degree

0% to 200% (Display range: 0% to 200%)

Temperature

0℃ to 50℃ (Display range: -10℃ to 110℃)

Display
resolution

Dissolved oxygen
concentration

0.01 mg/L

Saturation degree

1%

Temperature

0.1℃

Performance

Dissolved
oxygen
concentration

Repeatability

Within ±0.5% of the full scale (response for equivalent input)

Linearity

Within ±0.5% of the full scale (response for equivalent input)

Temperature

Repeatability

±0.5℃(response for equivalent input)

Linearity

±0.5℃(response for equivalent input)

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: 900Ω

Linearity

Within ±0.08 mA (output only)

Repeatability

Within ±0.02 mA (output only)

Output range

Output 1

Dissolved oxygen concentration: Selection from preset ranges or free range input within measuring range.

Output 2

Free setting within a range between -20℃ and 130℃

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

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)

Contact
function

R1 and 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.)

Alarm setting range

Selectable from dissolved oxygen concentration, and temperature

• Setting range: Within the measurement range

• Delay time: 0 to 600 seconds

Control setting range

• Setting range: 0 mg/L to 20 mg/L

• Control width: 0.02 mg/L to 200 mg/L(±0.01 to ±0.50 mg/L)

Cleaning
output

Number of output points

1

Output type

Contact output with voltage (output of connected power supply voltage)

Contact type

Relay contact; SPST (1a)

Output contact capacity

250 V AC 0.5 A

External instrument

Solenoid valve for cleaning control

Settings

Cleaning period

0.1 hours to 168.0 hours

Cleaning time

2 seconds to 600 seconds

Hold time

2 seconds to 600 seconds

Timer accuracy

Within 2 minutes per month

Description of cleaning
operation

One of the following operations.

• Operation of internal timer only

• Operation of internal timer and external input command

• Enable the internal timer only when external input is active.

• The cleaning trigger signal (The external trigger signal must be longer than 2 seconds)

Contact input

Number of input

1

Contact type

No-voltage “a” contact of open collector

Conditions

ON resistance: 100 Ω max.
Open voltage: 24 V DC
Short-circuit current: 12 mA DC max.

Contact function

External input for cleaning or transmission holding if cleaner is not attached.

Transmission
capability

Communication type

RS-485

Signal type

2 wire system, isolated from the input circuit
Not isolated from transmission circuit

Temperature
compensation

Applicable temperature
element

Platinum resistor: 1 kΩ (0℃)
(The temperature sensor is built into the probe DO-1000.)

Temperature compensation
range

0℃ to 50℃

Temperature calibration

1 point calibration comparing to reference thermometer

Calibration

Calibration method

Span calibration in the air or DO saturated aquaous solution

Number of calibration points

Atmospheric calibration: 1 point
(Zero electric calibration is carried out automatically)
Saturation liquid calibration : 2 points (zero calibration is omitted)

Additional capabilities

Salinity compensation (0.0% to 5.0%)
Automatic detection of calibration failure (Zero error, Sensitivity error)
Calibration history (Elapsed days from the last calibration which ever zero or span, zero shift, span sensitivity)

Self-check

Calibration error

Zero calibration error, sensitivity error, outside of temperature calibration range

Electrode diagnostic error

Sensor error (damage to diaphragm), disconnection of sensor (or damage to sealing), temperature sensor short-circuit, and electric discontinuity of temperature sensor

meter error

CPU error, CPU error, ADC error, memory error

Operating temperature range

-20℃ to 55℃ (without freeze)

Operating humidity range

Relative humidity: 5％ to 90％ (without condensation)

Storage temperature

-25℃ to 65℃

Power supply

Rated power supply voltage

100 V to 240 V AC ±10% 50/60 Hz

Power consumption

15 VA (max)

Others

With power switch for maintenance use

Compatible
standards

CE marking

EMC  :EN61326-1
      Class A, Industrial electromagnetic environment
Safety  :EN61010-1
RoHS　:EN50581
      9. Industrial monitoring and control instruments

FCC rules

Part15 Class A

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)

Material of fittings

SUS304

Material of hood

SUS304 stainless steel (coated with epoxy-denatured melamine resin)

Material of window

Polycarbonate

Display element

Reflective monochrome LCD

External dimensions

180 (W) × 155 (H) × 115 (D) mm (excluding mounting brackets)

Mass

Main body: Approx. 3.5 kg; cover and mounting brackets: Approx. 1 kg