Most common instruments:

• Gas analyzers

Scope:

• Oxygen 0 ~ 21 cmol/mol,

• Carbon monoxide 0 ~ 100 μmol/mol

• Hydrongen sulfide 0 ~ 25 μmol/mol

• Methane 0 ~ 2.5 cmol/mol
• Carbon Dioxide 0 ~ 5 000 μmol/mol, 0.5 ~ 5 cmol/mol
• Isobutane 0 ~ 0.8 cmol/mol
• Hydrogen 0 ~ 1 000 μmol/mol, 1 ~ 2 cmol/mol

Most common instruments:

• DC ammeters
• Resistance meters
• AC ammeters
• Analogue/Digital multimeters

Scope:

• 0 ~ 300 μA, 0.3 ~ 300 mA, 0.3 ~ 100 A
• 1 mΩ ~ 10 MΩ

• 0 ~ 100 mA, 0.1 ~ 10 A, 10 ~ 100 A

• 0 ~ 100 mV, 0.1 ~ 1 000 V

Most common instruments:

• Push-Pull Gauges

Scope:

• Tension 1 ~ 1 000 N
• Compression 1 ~ 3 000 kN
• Push pull gauges 1 ~ 1 000 N

Most common instruments:

• Brinell hardness testers
• Rockwell hardness testers
• Vickers hardness testers
• Durometer hardness testers
• Leeb hardness testers

Scope:

• 100 ~ 250 HBW, 250 ~ 450 HBW

• 20 ~ 70 HRC, 10 ~ 100 HRBW

• 50 ~ 300 HV 0.2

  300 ~ 600 HV 0.2

  600 ~ 850 HV 0.2

• 0 ~ 100 HDA, 0 ~ 100 HDD
• 500 ~ 700 HLD

Most common instruments:

• Relative humidity hygrometers
• Temperature humidity recorders
• Humidity generators

Scope:

• 25 ~ 90 % R.H.
•  -40 ~ 140 ℃
• 25 ~ 95 % R.H., -70 ~ 200 ℃

Most common instruments:

• Temperature indicators
• Resistance thermometers
• Thermocouples

Scope:

• -70 ~ 250℃, 250 ~ 1 500℃

• -70 ~ 250℃

• Base metal -70 ~ 1 300℃,

  Noble metal 250 ~ 1 500℃

Most common instruments:

• Dial swing scale balances,
• Electric balances
• Weights

Scope:

• 0 ~ 2 000 kg
• 0 ~ 5 000 kg
• F1 grade 1 mg ~ 1 kg, M1 grade 2kg ~ 20kg

Most common instruments:

• Differential pressure gauges
• Gauge pressure gauges
• Dial type vacuum gauges

Scope:

• 0 ~ 7 000 kPa
• 0 ~ 6 000 kPa, 6 ~200 MPa
• -95 ~ 0 kPa