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On-site Calibration
ISO/IEC 17025:2017 Certified
CLC brings calibration to your site — cutting transport costs while meeting ISO/IEC 17025:2017 accreditation. Convenient, fast, and accurate.
CLC Calibration Laboratory provides onsite calibration services performed by our team of expert engineers, who come directly to your factory or facility. Our services are accredited to ISO/IEC 17025:2017, covering 9 measurement disciplines and over 202 instrument types. This service is ideal for instruments that are difficult to transport, permanently installed, or when you need to minimize production downtime.
Onsite Calibration Service
| # | Instrument Name | Capability / Range |
|---|---|---|
| 1 | Digital Pressure Gauge (Pneumatic) | 0 - 20684 kPa |
| 2 | Digital Pressure Gauge (Hydraulic) | 0 - 200 MPa |
| 3 | Digital Compound Gauge | (-0.1) - 34.5 MPa |
| 4 | Pressure Meter with Interchangeable Transducers | GAS: 0 - 34.5 / OIL: 0 - 68.9 MPa |
| 5 | Pressure Controller | GAS: 0 - 34.5 / OIL: 0 - 300 MPa |
| 6 | Vacuum Gauge | (-0.2) - 0 MPa |
| 7 | Pressure Transmitters with Indicator (Pneumatic) | 0 - 34.5 MPa |
| 8 | Pressure Transmitters with Indicator (Hydraulic) | 0 - 137.5 MPa |
| 9 | Pressure Transmitters without Indicator (Pneumatic) | 0 - 34.5 MPa |
| 10 | Pressure Transmitters without Indicator (Hydraulic) | 0 - 137.5 MPa |
| 11 | Leak Master | Up to 0.65 - 20 ml/min (@2 - 100 kPa) / > 20 ml/min (@2 - 2000 kPa) |
| 12 | Leak Tester | Diff Pressure: 0 - 100 / Pressure Supply: 0 - 1000 kPa |
| ↑ Back to Parameter Selection | ||
| 13 | Safety Valve | Up to 10.3 MPa |
| 14 | Tire Pressure Gauge | Up to 10.3 MPa |
| 15 | Manometer | Up to 100 kPa |
| 16 | Pirani Vacuum Gauge | 0.01 - 750 torr |
| 17 | Pressure Switch (Pneumatic) | 0 - 10342 kPa |
| 18 | Pressure Switch (Hydraulic) | 0 - 68.9 MPa |
| 19 | Pressure Transducer with Indicator (Pneumatic) | 0 - 34.5 MPa |
| 20 | Pressure Transducer with Indicator (Hydraulic) | 0 - 137.5 MPa |
| 21 | Pressure Transducer without Indicator (Pneumatic) | 0 - 34.5 MPa |
| 22 | Pressure Transducer without Indicator (Hydraulic) | 0 - 137.5 MPa |
| 23 | Differential Pressure Gauge | 0 - 100 kPa |
| 24 | Vacuum Calibrator | (-0.1) - 0 MPa |
| # | Instrument Name | Capability / Range |
|---|---|---|
| 1 | Digimatic / Dial Indicator | 0 - 100 mm |
| 2 | Linear Gauge (LVDT) | All Range |
| 3 | Digimatic / Dial Thickness Gauge | 0 - 100 mm |
| 4 | Dial Test Indicator | 0 - 1.6 mm |
| 5 | Bore Gauge, Cylinder Gauge | All Size |
| 6 | Bore Gauge, Cylinder Gauge (Ball Probe Type) | 0 - 500 mm |
| 7 | Outside Micrometer | 0 - 1500 mm |
| 8 | Inside Micrometer | 5 - 1550 mm |
| 9 | Inside Micrometer with Rod | 5 - 1500 mm |
| 10 | Tooth Thickness Micrometer | 0 - 1500 mm |
| 11 | Micrometer Head | 0 - 50 mm |
| 12 | Depth Micrometer | 0 - 1000 mm |
| 13 | Vernier Caliper (Digital, Dial) | All Size |
| 14 | Gear Tooth Vernier Caliper | All Size |
| 15 | Vernier Height Gauge (Digital, Dial) | All Size |
| 16 | Vernier Depth Gauge (Digital, Dial) | 0 - 1000 mm |
| 17 | Air Gauge | 0 - 10 mm |
| 18 | Measuring Microscopes | 0 - 300 mm |
| 19 | Profile Projector | Linear: 0 - 300 mm / Angle: 0 - 90° / Magnification: (Exam. 20x, 50x, ...) |
| 20 | Height Master | 0 - 600 mm |
| 21 | Universal Height Master | 0 - 1000 mm |
| 22 | Length Gauge | 0 - 1000 mm |
| 23 | Calibration Arm | Diameter: Up to 30 / Volumatic: Up to 1000 mm |
| 24 | CF Jig, CF Gauge | 0 - 2500 mm |
| 25 | Roller Counter | All Size |
| ↑ Back to Parameter Selection | ||
| 26 | Granite Surface Plate | Cal. Only: All Size / Cal. & Lapping Grade 0: Up to Size 1000 x 1000 mm / Cal. & Lapping Grade 1, 2: All Size |
| 27 | Lapping Granite Surface Plate | Grade 0: Up to Size 1000 x 1000 mm / Grade 1, 2: All Size |
| 28 | Cast Iron Surface Plate | All Size |
| 29 | Stage Micrometer | Up to 25 mm |
| 30 | CMM | All Size |
| 31 | Lay-Out Machine | All Size |
| 32 | Universal Length Measuring Machine | All Size |
| 33 | Linear Scale | All Size |
| 34 | CNC | All Size |
| 35 | Roughness Tester | Ra, Rz |
| 36 | Contour Tester | All Size |
| 37 | Contour Measurement | Diameter: 0 - 77.5 mm / Length, Height, Width: 0 - 50 mm / Radius: 0 - 38.75 mm |
| 38 | Air Micrometer | 0 - 200 µm |
| 39 | Extensometer | All Size |
| 40 | Granite Stand | All Size |
| 41 | Blade Micrometer | 0 - 1000 mm |
| 42 | Cylindrical Micrometer, Pin Micrometer | 0 - 1000 mm |
| 43 | V-Anvil Micrometer | 0 - 85 mm |
| 44 | Screw Thread Micrometer | 0 - 300 mm |
| 45 | Gear Tooth Micrometer | 0 - 1000 mm |
| 46 | Dial Snap Micrometer | 0 - 100 mm |
| 47 | Tube Micrometer Spherical Micrometer | 0 - 1000 mm |
| 48 | Point Micrometer | 0 - 1000 mm |
| 49 | Dial Caliper Gauge | Internal: 2.5 - 180 mm / External: 0 - 130 mm |
| 50 | Groove Micrometer | 0 - 100 mm |
| # | Instrument Name | Capability / Range |
|---|---|---|
| 1 | Liquid Bath, Water Bath | (-70) - 250 °C |
| 2 | Temperature Controller (Simulation) | Thermocouple Type R: 0 - 1200 °C / Thermocouple Type S: 0 - 1200 °C / Thermocouple Type K: (-40) - 1200 °C / Thermocouple Type N: (-40) - 1200 °C / Thermocouple Type J: (-40) - 1200 °C / Thermocouple Type E: (-40) - 1000 °C / Thermocouple Type T: (-40) - 400 °C |
| 3 | Dial Thermometer | (-30) - 250 °C |
| 4 | Thermometer with Sensor (Close Loop) | Thermistor: (-80) - 250 °C / PRT: (-80) - 450 °C / Thermocouple Type T: (-80) - 400 °C / Thermocouple Type E: (-80) - 900 °C / Thermocouple Types K, N, J: (-80) - 1200 °C / Thermocouple Type R, S: 0 - 1200 °C / Thermocouple Type B: 600 - 1200 °C |
| 5 | Infrared Thermometer | (-40) - 1200 °C |
| 6 | Data Logger with Resistance Thermometer Sensor | (-70) - 250 °C |
| 7 | Data Logger with Thermocouple | (-70) - 250 °C (Type E, K, N, T, J, S, R) |
| 8 | Temperature Indicator | RTD (100Ω PT(385) 4, 3, 2 wire): (-200) - 800 °C / Thermocouple Type R: 0 - 1700 °C / Thermocouple Type S: 0 - 1700 °C / Thermocouple Type K: (-100) - 1300 °C / Thermocouple Type J: (-100) - 1200 °C / Thermocouple Type E: (-100) - 1000 °C / Thermocouple Type T: (-150) - 400 °C |
| 9 | Temperature Sensor | Thermocouple Type R: 0 - 1200 °C / Thermocouple Type S: 0 - 1200 °C / Thermocouple Type K: (-70) - 1200 °C / Thermocouple Type N: (-70) - 1200 °C / Thermocouple Type J: (-70) - 1200 °C / Thermocouple Type E: (-70) - 1000 °C / Thermocouple Type T: (-70) - 400 °C |
| 10 | Furnaces | 200 - 1200 °C |
| 11 | Autoclave | 105 - 135 °C |
| ↑ Back to Parameter Selection | ||
| 12 | Freezer | (-70) - 0 °C |
| 13 | Incubator | 5 - 70 °C |
| 14 | Oven | 50 - 250 °C |
| 15 | Vacuum Oven | 50 - 250 °C |
| 16 | Chamber | (-70) - 250 °C |
| 17 | Humidity Chamber | Temperature: 15 - 45 °C / Humidity@25 °C: 30 - 90 %RH / Humidity@20 °C: 35 - 90 %RH |
| 18 | Refrigerator | 4 - 15 °C |
| 19 | Temperature Transmitter | RTD (100Ω PT(385) 4, 3, 2 wire): (-200) - 800 °C / Thermocouple Type R: 0 - 1700 °C / Thermocouple Type S: 0 - 1700 °C / Thermocouple Type K: (-100) - 1300 °C / Thermocouple Type N: (-40) - 1200 °C / Thermocouple Type J: (-100) - 1200 °C / Thermocouple Type E: (-100) - 1000 °C / Thermocouple Type T: (-150) - 400 °C |
| 20 | Melt Flow | 50 - 420 °C |
| 21 | COD Reactor, Test Tube Heater | 37 - 150 °C |
| 22 | Temperature Control Room | Profile: (-70) - 250 / Compare: (-40) - 450 °C |
| # | Instrument Name | Capability / Range |
|---|---|---|
| 1 | Torque Transducers, Torque Cell | 0 - 2700 N·m |
| 2 | Torque Meter | 0 - 2700 N·m |
| 3 | Torque Wrench Tester (Digital, Dial) | 0 - 2700 N·m |
| 4 | Torque Driver Tester | 0 - 270 N·m |
| 5 | Torque Leader Tester | 0 - 2700 N·m |
| 6 | Spin-Torque | 0 - 1500 N·m |
| 7 | Torque Wrench | 0 - 2500 N·m |
| 8 | Digital Torque Wrench | 0 - 2500 N·m |
| 9 | Torque Screw Driver | 0 - 270 N·m |
| 10 | Torque Gauge | Up to 2 N·m |
| 11 | Air Torque (Nutrunner) | 0.1 - 65 N·m |
| 12 | Uni-Screwdriver | 0.1 - 10 N·m |
| 13 | Torque Multiplier | 0 - 5000 N·m |
| 14 | Impact Machine | Angle, Length, Weight, Timer |
| 15 | Crane Scale | Tension: Up to 22000 kgf |
| 16 | Load Cell | Compression: Up to 250 kN / Tension: Up to 220 kN |
| # | Instrument Name | Capability / Range |
|---|---|---|
| 1 | Hybrid Recorder, Memory Recorder | DCV (Input ACV): 0 - 1000 V / DCA (Input ACA): 0 - 30 A / Resistance: 0 - 400 Ω |
| 2 | Decade Resistance Box | 0 - 1 GΩ |
| 3 | General Resistance Instrument RTD Simulator | 0 - 1 kΩ |
| 4 | Resistance Hi Tester | 1 mΩ - 10 TΩ (@250 V - 5 kV, @Up to 10 A) |
| 5 | Resistivity | Up to 10 TΩ |
| 6 | Surface Resistance Checker | Up to 10 TΩ |
| 7 | mΩ Hi Tester | 1 mΩ - 1 MΩ (@Up to 10 A) |
| 8 | Battery Hi Tester | DCV: 0 - 1000 V / Resistance: 0 - 330 MΩ |
| 9 | Digital Multimeter (Digital HiTester) | Resistance: 0 - 330 MΩ / ACA, DCA: 0 - 30 A / ACV, DCV: 0 -1000 V / Frequency: 0 - 10 MHz / Capacitance: 0 - 1.1 mF |
| 10 | Insulation, Withstanding Hi Tester, Hi Voltage | Resistance: 0 - 1000 MΩ / ACV, DCV: 0 -10 kV / Up to 100 |
| 11 | Portable withstanding Voltage Hi Tester | ACV, DCV: 0 -10 kV / ACA, DCA: Up to 100 mA |
| 12 | High Voltage Contact Checker | ACV: 0 - 10 kV |
| 13 | MΩ Hi Tester (Insulation) | 0 - 1000 MΩ |
| 14 | AC Withstanding Voltage Hi Tester | ACV: 0 - 10 kV / ACA: Up to 100 mA |
| 15 | Leak Current Hi Tester | Up to 100 mA |
| 16 | AC Grounding Hi Tester | ACA: Up to 30 mA / Resistance: 0 - 1 Ω |
| 17 | Waveform Generator | 10 - 225 MHz |
| 18 | DC Signal Source | DCV: 0 - 1000 V / DCA: Up to 1 A |
| 19 | Sheile Check & ESD Discharge Simulator | ACV, DCV: ± 25 kV |
| 20 | Data Logger | DCV (Input ACV): 0 - 1000 V / DCA (Input ACA): 0 - 30 A / Resistance: 0 - 400 Ω / Temp.: (-200) - 1300 °C |
| 21 | Clamp On Meter | ACV, DCV: Up to 1000 V / ACA, DCA: Up to 1500 A / Resistance: 0 - 330 MΩ |
| 22 | Clamp On Leak Tester | ACV, DCV: Up to 1000 V / ACA, DCA: Up to 1500 A / Resistance: 0 - 330 mΩ |
| 23 | Clamp On Power Tester | ACV, DCV: Up to 1000 V / ACA, DCA: Up to 1500 A / Resistance: 0 - 1500 kΩ |
| ↑ Back to Parameter Selection | ||
| 24 | Power Analyzer | ACV, DCV: 0 - 1000 V / ACA, DCA: 0 - 11 A |
| 25 | Power Meter | ACV, DCV: 0 - 1000 V / ACA, DCA: 0 - 30 A / Power (AC, DC): 0 - 30 kW / P.F.: 0 - 1 |
| 26 | Watt Meter | Power (AC, DC): 0 - 30 kW / P.F.: 0 - 1 |
| 27 | Analog Watt Meter (Single Phase) | Power (AC, DC): 0 - 30 kW |
| 28 | Digital Watt Meter (Three Phase) | ACV, DCV: 0.5 - 560 V / ACA, DCA: 1 mA - 120 A / Power (AC, DC): 0.5 mW - 67.2 kW / P.F.: 0 - 1 |
| 29 | Analog Watt Meter (Three Phase) | Power (AC, DC): 200 W - 1000 kW / ACA, DCA: 1 mA - 30 mA / Power (AC, DC): 0 - 67 kW |
| 30 | Analog Multimeter | Resistance: 0 - 330 mΩ / ACV, DCV: 0 - 1000 V / ACA, DCA: 0 - 30 A / Power (AC, DC): 0 - 11000 W / Frequency: 10 Hz - 500 kHz / Capacitance: 330 pF - 1.1 mF |
| 31 | Digital Multimeter | Resistance: 0 - 330 mΩ / ACV, DCV: 0 - 1000 V / ACA, DCA: 0 - 11 A / Power (AC, DC): 0 - 11000 W / Frequency: 0.01 Hz - 2 MHz |
| 32 | Phase Detector | Phase 1, 2, 3 (RST) 0 - 500 V |
| 33 | Earth Tester | 0 - 100 kΩ |
| 34 | Current Transformer | 0 - 30 A |
| 35 | Analog Panel Meter | Resistance: 0 - 330 mΩ / ACV, DCV: 0 - 1000 V / ACA, DCA: 0 - 30 A / Power (AC, DC): 0 - 11000 W / Frequency: 10 Hz - 500 kHz / Capacitance: 330 pF - 1.1 mF |
| 36 | Counter | 0 - 10 MHz |
| 37 | Timer | 1 s - 24 Hr |
| 38 | Oscilloscope | 0.2 mV - 30 V / 5 ns - 200 ms |
| 39 | Function Generator | 225 MHz |
| 40 | Hot Line Coil Resistance & Temp Meter | Temp. (Source & Measure): Type J, K, T,E, R, S, B, C, G, D, U, L / PT100, Ni100 Ω, Ni120 Ω, Ω, mV, mA |
| 41 | Centrifuge | 100 - 13000 rpm |
| 42 | Footwear Tester, Wrist Strap Tester | 1 kΩ - 10 TΩ |
| 43 | Color Light Box | 2300 - 20000 K / 1 - 99990 Lux |
| 44 | Energy Meter | 0 - 67.2 kW/hr |
| 45 | Holiday Detector | 0 - 40 kV |
| 46 | Network Analyzer | 0 - 3 GHz |
| # | Instrument Name | Capability / Range |
|---|---|---|
| 1 | Digital, Electronic, Scale Balance | Cal Only: 0 - 4500 kg / Cal, Adjust: 0 - 4500 kg |
| 2 | Spring Balance | 0 - 300 kg |
| 3 | Hardness Tester | HRA 35, 60, 85 / HRBS 40, 70, 90 / HRBW 40, 70, 90 / HRC 20, 30, 40, 50, 60, 64 |
| 4 | Handy Scale (4 Plate/set) | 0 - 1000 kg |
| 5 | Beam Balance | 1 mg - 4500 kg |
| 6 | Moisture Balance | Cal Balance: 0 - 200 / Cal Temp: Up to 250 kg |
| 7 | Impact Tester | 0 - 300 J |
| 8 | Crane Scale | 0 - 20000 kg |
| # | Instrument Name | Capability / Range |
|---|---|---|
| 1 | pH Meter, pH Controller, pH Electrode | 1.0, 1.68, 2.00, 4.01, 6.86, 7.01, 9.18, 10.01, 11.00, 12.00, 13.00 pH |
| 2 | Conductivity Meter, Conductivity Controller | 84, 100, 500, 1410, 1413 , 1414, 5000 , 12880 / 12.89, 12.86, 80.06, 111.6, 147 µs/cm |
| 3 | Resistivity Cell (Cal Electrical) | 0.001 - 20 MΩ/cm |
| 4 | Conductivity Cell (Cal Electrical) | 0.001 µs/cm - 100 ms/cm |
| 5 | TDS Meter | 66.6, 666, 941, 6654, 314.3, 1015, 2814, 1378, 1504 mg/l |
| 6 | ORP Meter | 124, 250, 358, 465, 650, 237, 472 mV |
| 7 | Turbidity Meter | 0 - 200 NTU |
| # | Instrument Name | Capability / Range |
|---|---|---|
| 1 | Defibrillator (เครื่องกระตุกหัวใจ) | Energy: 0 - 360 (±10%) Joules |
| 2 | Digital Blood Pressure Monitor (เครื่องวัดความดันโลหิตแบบอัตโนมัติ) | Pressure: 0 - 300 mmHg / Air Leakage: ± 6 mmHg/min |
| 3 | Infant Incubator (ตู้อบทารก) | Air Controlled mode: 30 - 37 / Skin Temperature Controlled mode: 35 - 37.5 °C |
| 4 | Infant Warmers | 30 - 37 °C |
| 5 | Infusion Pump (เครื่องควบคุมการให้สารละลายทางหลอดเลือด) | Flow Rate: 1 - 900 mL/h |
| 6 | IR Ear Thermometer | 35 - 42 °C |
| 7 | Mechanical Sphygmomanometer (เครื่องวัดความดันโลหิต) | 0 - 300 mmHg |
| 8 | Oxygen Flow Meter | Flow Rate: 0 - 15 (±10%) |
| 9 | Suction Regulator (เครื่องดูดของเหลว) | Negative Pressure: (-500) - 0 mmHg |
| 10 | Syringe Pump | Flow Rate: 1 - 900 mL/h |
| 11 | Ventilator (เครื่องช่วยหายใจ) | Tidal Volume / Respiration Rate / I : E Ratio / Peak Inspiration Pressure (PIP) / Peak Inspiratory Flow (PIF) / Positive End Expiratory Pressure (PEEP) / Fraction of Inspired Oxygen (FiO2)(±10%) |
| 12 | Centrifuge | 1000 - 13000 rpm |
| # | Instrument Name | Capability / Range |
|---|---|---|
| 1 | Liquid Flow Meter with Indicator (Rota Flow Meter) | Up to 500 L/min |
| 2 | Liquid Flow Meter with Indicator (Analog Flow Meter) | Vertical: Up to 1000 L/min (Ø 1/2 - 4") / Horizontal: Up to 2500 L/min (Ø 1/2 - 6") |
| 3 | Liquid Flow Meter with Indicator (Digital Flow Meter) | Vertical: Up to 1000 L/min (Ø 1/2 - 4") / Horizontal: Up to 2500 L/min(Ø 1/2 - 6") |
| 4 | Liquid Flow Sensor, Flow Transducer | Vertical: Up to 1000 L/min (Ø 1/2 - 4") / Horizontal: Up to 2500 L/min (Ø 1/2 - 6") |
| 5 | Liquid Flow Sensor, Flow Transmitter | Vertical: Up to 1000 L/min (Ø 1/2 - 4") / Horizontal: Up to 2500 L/min (Ø 1/2 - 6") |
| 6 | Liquid Flow Indicator (Transducer) | All Range |
| 7 | Liquid Flow Indicator (Transmitter) | All Range |
| 8 | Flow Switch (Digital, Analog) (Liquid) | Vertical: Up to 1000 L/min (Ø 1/2 - 4") / Horizontal: Up to 2500 L/min (Ø 1/2 - 6") |
| 9 | Mechanical Flow Switch, Safety Flow (Liquid) | Vertical: Up to 1000 L/min (Ø 1/2 - 4") / Horizontal: Up to 2500 L/min (Ø 1/2 - 6") |
| 10 | Ultrasonic Flow Meter | Up to 2500 L/min (Ø 1/2 - 4") |
| 11 | Air Flow meter | 0 - 250 L/min |
| 12 | Purge Meter (Air) | 0 - 250 L/min |
| 13 | Flow Switch (Digital, Analog) (Air) | 0 - 250 L/min |
| 14 | Mechanical Flow Switch, Safety Flow (Air) | 0 - 250 L/min |
| 15 | Rotameter (Air) | 0 - 250 L/min |
| 16 | Feed Pump (Liquid) | Up to 50 L/min |
| 17 | Level Measurement | Up to 10 m |
Onsite Instrument Calibration by CLC’s Team of Experts
Onsite calibration performed by CLC’s expert team, brought directly to your facility — for factories, laboratories, and organizations that need to minimize instrument downtime. Our work follows the relevant quality management system for calibration services, and any instrument within ISO/IEC 17025 scope must be verified against the actual accreditation scope before a quotation is issued.
What Is Onsite Calibration?
Onsite calibration is when our calibration engineers travel directly to your factory or facility to perform the service — without the need to remove or transport your instruments off-site. This is ideal for permanently installed equipment, large instruments that cannot be moved, or situations where you need to minimize production downtime and reduce the risks associated with transportation.Calibration is carried out under the ISO/IEC 17025:2017 standard, using accredited reference instruments. The resulting Certificate of Calibration carries the same full validity as calibration performed in our laboratory, and can be used directly to support quality systems such as ISO 9001, GMP, and audit requirements.
Who This Is For
- Industrial factories
- Testing laboratories
- QA/QC departments
- Maintenance departments managing large numbers of instruments
- Organizations that cannot conveniently ship instruments off-site
- Businesses that need to maintain production schedules and minimize downtime
Advantages
— Reduces instrument downtime
— Lowers transportation risk — ideal for large or high-volume instruments
— Enables convenient scheduled calibration rounds for factories managing quality systems
— Provides documented calibration results to support your quality system
— Certificate of Calibration is fully valid under ISO/IEC 17025:2017 — equivalent to in-lab calibration — usable immediately for ISO 9001 and GMP audits
— Lowers total cost compared to the shipping, insurance, and risk involved in sending instruments off-site
Service Process
Steps
1. Customer submits the list of instruments
2. CLC reviews instrument types, quantity, location, and scope of work
3. We assess whether onsite calibration is suitable, or whether lab calibration is recommended instead
4. Quotation issued
5. Service date scheduled
6. Calibration team arrives onsite
7. Calibration is performed and certification documentation prepared
8. Certificate/report delivered according to the agreed terms
Can certificates from onsite calibration be used for quality system audits?
A: Yes. A Certificate of Calibration issued from onsite calibration is fully equivalent to one issued from in-lab calibration, because CLC performs both in-lab and onsite calibration under the ISO/IEC 17025:2017 standard. The certificates you receive can be used immediately to support quality system audits such as ISO 9001, ISO 14001, GMP, IATF 16949, and inspections by government agencies.
Can instruments that are permanently installed in a production line or cannot be moved be calibrated onsite?
A: Yes — this is actually one of the ideal use cases for onsite service. CLC's engineering team brings accredited reference instruments directly to the instrument's installation point, whether it's embedded in a pipeline system, a large-scale measuring device, or an instrument whose removal would disrupt the production process. Suitability depends on the instrument type and the conditions at the installation site; CLC will assess the calibration scope before issuing any quotation.
How does onsite calibration differ from sending instruments to the laboratory?
A: The main difference is the location where the work is performed — not the quality of the result. For lab calibration, the customer removes and transports the instrument to CLC's laboratory, which suits small, lightweight, and easily transportable instruments. For onsite calibration, CLC's engineering team travels with accredited reference instruments to your facility, which suits permanently installed or large equipment, or when you need to minimize production downtime. Both approaches are performed under the exact same ISO/IEC 17025:2017 standard, and the certificates issued carry identical validity.
Which types of instruments are better suited to onsite calibration than lab calibration?
A: We recommend onsite service in the following cases:Instruments permanently installed in a pipeline or production line that cannot be removed without stopping the processLarge or heavy instruments, such as crane scales, CMMs, granite surface plates, or large volumetric tanksMultiple instruments located at the same site — sending them individually to the lab is time-consuming and costlyInstruments that need to remain in continuous use, with limited allowable downtimeMedical instruments installed in hospitals or clinics, such as ventilators, infusion pumps, and infant incubators
What does the customer need to prepare before CLC's team arrives for onsite calibration?
A: To ensure the calibration process runs smoothly, please prepare the following:Instrument list — the instruments to be calibrated, along with serial numbers and operating rangeWork area — the location where instruments are installed should be easily accessible, well-lit, and have suitable ambient temperatureCoordinator — a representative from QC/QA or the engineer responsible for the instruments, to facilitate the visit and sign off on the calibration resultsDocumentation — previous calibration certificates (if available), for comparison of valuesCLC will provide further details after assessing the scope of work and issuing the quotation.
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