DKK-TOA HM-7J & HM-20J pH Meter

pH Meter HM-7J & HM-20J DKK-TOA

Features

HM-7J

HM-20J

● pH Meter

● pH Meter

● Easy-to-read display with analog meter

● Easy-to-read of measurements digital display

● Capable of measuring oxidation-reduction potential

( ORP ) ( electrode sold separately )

● Capable of measuring oxidation- reduction potential ( ORP ) ( electrode sold separately )

● With mV-shift function

● With mV-shift function

● Low price, compact size

● Low price, compact size

● pH 3.5〜10.5 Expansion scale : 200 %

Specifications

Model Name

HM-7J

 HM-20J

Measurement

Method Glass Electrode Method

Display

Analog meter, pH / mV switching

Digital meter, pH / mV switching

Measurement Range

pH

Range

pH 0〜14

Resolution

0.1 pH ( scale )

0.01 pH

pH

Range

pH 3.5〜10.5

Expansion

Resolution

0.05 pH ( scale )

mV

Range

0〜±700 mV ( 0〜±1400 mV by Zero shift )

0〜±1999 mV

Resolution

10 mV ( scale )

1mV

Repeatability

( Meter Main Unit )

pH

±0.05 pH

±0.01 pH ±1 digit pH

pH expansion

±0.025 pH

mV

±10 mV

±1 mV ±1 digit

Analog Output

pH

±700 mV ( pH 0〜14 )

mV

±350 mV（ 0〜±700 mV ）

±1 V ( 0〜±1999 mV )

Temp. Compensation Range

ATC ( Auto Temp. Compensating ) : 0 〜100.0 ℃

Calibration

Manual ( Zero span )

Operation Temp. Range

0〜40 ℃

Power Source

AC Line or Size AA battery ×2

Power Consumption

Approx. 3 VA

Main Unit Dimensions

Approx. W 148 × H 75 × D 221 mm

Main Unit Weight

Approx. 0.7 kg

Standard Accessories

pH Electrode

GST-5711C 1 piece

Standard Solutions

Each 1 bottle

KCL Solution

1 bottle

Electrode Holder

1 piece

Electrode Attachment

1 piece ( J-type )

Electrode Stand

1 piece

Support

1 piece

Stopper

1 piece

Polyethylene Beaker

150 mL 3 pieces

Thermometer

1 piece

Power Cable

1 piece

Ground Wire

1 piece

Operation Manual

1 copy