Product Name

Residual Oxygen Meter “PACK MASTER”

Model

RO-103S

Typeofmeasurement

O₂·DO: Electrochemical (Diaphragm-type galvanic cell)

Water temperature: Semiconductor temperature sensor

Type of display

LCD digital indicator

Informationdisplayed

O₂, gas replace rate, DO, saturation rate, water temperature,

remainingbatterylevel,errormessages,andcalibrationcount

Range of measurement

O₂ : 0.00 ~ 9.99% O₂

10.0 ~ 25.0% O₂ Automatic range switching

0.0 ~ 25.0% O₂ Resolution can be selected Gas replace rate: 0.0 ~ 100.0%

DO: With the (optional) DO measurement apparatus 0.00 ~ 9.99mg /L }*

10.0~20.0mg/L      Automatic rangeswitching

*Restricted within the measurement range for dissolved oxygen saturation rate

Dissolved oxygen saturation rate: 0.0 ~ 200.0% Water temperature: 0.0 ~ 40.0ºC

Measurementaccuracy (Measurementundercertain

conditionbeforeshipment.)

0.00～0.99% O₂：±0.03%O₂

1.00～9.99％ O₂：±0.09%O₂

10.0～25.0％ O₂：±0.2% O₂

Device accuracy (for display only)

O₂ : ±0.03% O₂ (Measurement under constant temperature.) DO: ±0.03mg /L (Measurement under constant temperature.)

Water temperature: ±0.1ºC

Measurement time

O₂ : 6 seconds *1

DO: 99% response within 40 second after the stirring starts*2

Output

Serial communication output

ConnectabletoaprinteroranexternaldevicethroughRS-232C.

Calibration method

O₂ : One-touch calibration with air

DO: One-touch calibration with saturated water or air

Features

Self-diagnosis feature:

Sensor life (sensor replacement timing notification),

Valuestabilitychecktimeout,andSensorinstabilitydetection Automatic stability assessmentfeature:

Holdsthe valueandindicatesitwhenthe valuebecomesstable.

Built-in clock

Operating temperature range

0 ~ 40ºC (without condensation for O₂ measurement)

Power requirements

4 AA-sized alkaline batteries (DC 6V), or 100V AC adapter

Dimensions

Mainunit: 170(W)×123(D) ×72(H) mm(exceptthe protrusions)