AOGS Calibrations & Repair

Allied Oil & Gas Calibration Laboratory (AOGS-Calibration), We are one of the leading calibration, Testing & Repair service Provider in Sultanate of Oman & GCC Region. AOGS is maintaining the Quality System as per ISO/IEC 17025:2017. The Laboratory for Calibration & Testing Section has been established in Year 2008 (Previously Known as Global Industrial services & Contracting LLC or GIS) as an interface between all the calibrating & testing groups more than 2000 customers from various industries, laboratories and government organizations from all over the country and abroad. We understand the requirements of the customer and thus stand for the customer satisfaction to the best of our endeavor. We have provided most of the information online required by our esteemed customers.

We offer accredited calibration services, you can trust for accuracy and consistency. Every year our accredited labs and Engineers test and verify over 10 million data points. No matter your industry, you can trust AOGS to meet your needs for accredited calibration services.

As a step towards for providing better services, you can provide us your Online Feedback, which will help us to improve the services further.

Service Types

In-Lab Calibration

The majority of our customers choose this convenient option. Either ship or drop off your instruments into one of our labs located in Muscat. We will quickly process your calibrations and ship back in three to five business days.


Onsite Calibration

Another flexible option is to have your instruments calibrated at your facility. This premium service offers you the convenience of having our Engineers bring our calibration standards and perform the calibration services onsite.


Managed Services

We can manage all your calibrations through our extensive network of approved vendors. Send your instrument to our lab, we will find the suitable vendor that can perform the work you need and manage the entire transaction for you helping you consolidate your suppliers and reduce your costs.

  • Single source for all 100% of your calibration needs.
  • Approved list of vendors, most offering accredited, national or international standard traceable calibrations.
  • Minimize cost by working with one vendor and eliminating qualifying and auditing multiple vendors.
  • All calibrations reviewed by AOGS technical staff for accuracy prior to shipment.
  • Provide annual recalibration notices for your calibrations prior to their due date.

Pick-up and Delivery Services

AOGS offers convenient door to door pick-up and delivery service within 50 Km radius from our lab service areas. Our professional drivers will safely prepare your instruments and return them to you.


Calibration Services

AOGS has a modern lab having pressure calibrators for testing and ISO/IEC 17025-2017 accredited calibration of pressure sensitive devices. We follow the standards to serve our client with the best pressure calibration services. Our pressure calibration services are not limited to any specific location rather we serve everywhere the client requires and demands.
  • Gauges
  • Transducers
  • Transmitters (Smart)
  • Test Gauges
  • Compound Gauges
  • Indicators & Controllers
  • Deadweight Testers
  • Pneumatic / Hydraulic Calibrators
  • Pressure Switches
  • Pressure Chart Recorder
  • Differential Pressure Equipment
  • Air Data Test Set

Don’t see your instrument on this list? We service products from thousands of manufacturers!
Please send an inquiry to anil@aogsoman.com with the Calibration range.

We offer an ISO/IEC 17025-2017 accredited dimensional calibration services were designed to ensure that your hand tools and measuring instruments provide reliable, precise, traceable measurement results with uncertainty.
  • Gauge Block Set Calibration
  • Laser Distance Meter Calibration
  • Surface Roughness Tester Calibration
  • Thread Plug/Ring Gauges Calibration
  • Microscope Calibration
  • Hardness Tester Calibration
  • Ruler and Surface Plate Calibration
  • Dial Indicator Calibrator
  • Coating Thickness Gauge
  • Radius and Pin Gage Calibration
  • Dial Indicator Calibration
  • V-Block Calibration
  • Plug Gage Calibration
  • Glass Scale Calibration
  • Feeler Gage Calibration
  • Ultrasonic Thickness Gauge Calibration
  • Measuring Wheel Calibration
  • Taper Gage Calibration
  • Linear Transducer & LVDT Calibration
  • Ring Gage Calibration

Don’t see your instrument on this list? We service products from thousands of manufacturers!
Please send an inquiry to anil@aogsoman.com with the Calibration range.

The ISO/IEC 17025-2017 accredited electrical lab for calibration of ammeter & other electrical devices with the capability of source & measurement of all electrical parameters (V, mv, A, mA, Ohms, Hz, etc..). The facility is equipped with most modern calibration standards to carry out various electrical & electronic Test & Measuring Instruments in the Lab & out at client’s facility with best measurement capability and uncertainty.

  • AC Voltage & Current
  • Analog AC DC Voltmeter
  • Attenuators
  • Capacitance
  • Capacitance Box
  • Characterize Vector Network Analyzers (VNA)
  • Clamp Meter
  • Current Transformer
  • DC Electronic Load
  • DC Power Supply
  • DC Regulated Power Supply
  • DC Voltage & Current
  • Decade Resistance Box
  • Digital Multimeter
  • Digital Oscilloscope
  • Energy Meter & Test Bench
  • Energy Meters
  • ESD Guns / Simulators / Generators
  • Frequency Analyzers
  • Frequency Counters
  • Function / Arbitrary Waveform Generators
  • High Current Primary & Secondary Injection Instruments
  • High-Frequency Oscilloscopes
  • High-Frequency Oscilloscope Probes
  • High Voltage Instruments up to 200KV
  • High Voltage Probe up to 100 KV
  • HV Resonance Test Kit
  • Insulation Tester
  • Line Impedance Stabilization Network (LISN)
  • Megohm Box
  • Network Analyzers
  • Online/Offline Energy Meter Calibration
  • Oscilloscope
  • Power Meter
  • Power Meters
  • Power Quality Analyzer
  • Power Sensors
  • Process Calibrator
  • Pulse Generators
  • Resistance
  • RF Synthesizers and Generators
  • Spectrum Analyzers
  • Stop Watch
  • Tan Delta Tester
  • Temperature Calibrator
  • Temperature Indicators / Controllers
  • Temperature Recorder
  • Temperature Simulator
  • Timers
  • Transformer Oil BDV Tester
  • Transformer Turn Ratio Meter
  • VLF Test Kit

Don’t see your instrument on this list? We service products from thousands of manufacturers! Please send an inquiry to anil@aogsoman.com with the Calibration range.

We offer ISO/IEC 17025-2017 accredited calibration onsite for UTM,CTM, Our lab is equipped with high accuracy load cells for calibrating Universal testing machines, Compression testing machines and Tensile testing machines ranging from 0.1 N to 3000 kN both in tension and compression mode.

Don’t see your instrument on this list? We service products from thousands of manufacturers! Please send an inquiry to anil@aogsoman.com with the Calibration range.

From handheld thermometers, RTDs and thermocouples to benchtop dry block calibrators and temperature baths, you can count on AOGS ISO/IEC 17025:2017 accredited temperature calibration services.

  • Thermometer Calibration – Infrared and Handheld
  • RTD Calibration
  • Thermo Hygrometer Calibration
  • Thermocouple Calibration
  • Dry Block, Temperature Oven, Bath, and Furnace Calibration
  • Calibration Services for RTD Calibrators & Devices
  • Dew Point Calibration Services for Meters and Sensors
  • Digital Indicators & Probes
  • Glass Thermometers
  • Ear Thermometers
  • Climatic Chambers
  • Autoclaves, Ovens, Refrigerators & Chillers
  • Temperature Survey & Mapping
  • Dry Block & Liquid Bath Calibrators

Don’t see your instrument on this list? We service products from thousands of manufacturers! Please send an inquiry to anil@aogsoman.com with the Calibration range.

AOGS has fully automated & ISO/IEC 17025:2017 certified Torque lab. AOGS is an authorized Calibration Centre & perform the onsite and lab calibration services for Torque measuring and testing equipment and systems. It has fully-fledged lab with modern calibrating equipment and high capability in serving with Norbar standards. In AOGS torque calibration lab, the calibration systems in the lab are installed by Norbar.

  • Torque Wrenches
  • Torque Indicators
  • Torque Spanners
  • Torque Screwdrivers
  • Pneumatic / Hydraulic Wrenches
  • Torque Testers
  • Torque Transducers
  • Torque Multipliers

Don’t see your instrument on this list? We service products from thousands of manufacturers!
Please send an inquiry to anil@aogsoman.com with the Calibration range.

Our medical test equipment calibration services meet demanding International guidelines with flexible delivery options. These include onsite calibration at your facility/in our Calibration LAB/Subcontractor Facility/OEM. Medical equipment calibration services include all the standard metrology capabilities,

  • Electrical Safety Analyzer Calibration
  • Scales
  • Patient Simulators
  • Gas Flow Analyzers
  • SPO2 & NIBP Simulators
  • EKG Electrode Impedance
  • Centrifuges
  • Ventilator Tester
  • Temperature Simulators, Fluid Warming Systems
  • Autoclaves
  • Biosafety Cabinet / Fume Hood Validation
  • Infusion Pumps
  • RF / High Frequency Calibration
  • Pipette Calibration
  • Torque Calibration
  • Pressure Calibration
  • Temperature / Humidity Calibration
  • Electronic Calibration
  • And much more!

Don’t see your instrument on this list? We service products from thousands of manufacturers!
Please send an inquiry to anil@aogsoman.com with the Calibration range.

Our ISO/IEC 17025-2017 accredited calibration ensures the accuracy and reliability of weighing scales, Balances, and Test weights. We verify weight measurements for different capacities and resolutions to comply with regulatory standards

  • Weighing Scales
  • Test Weights Class F, F1, M, M1
  • Analytical Weighing Scales
  • Industrial Weighing Scales
  • Weighing Instruments in Hospitals / Biomedical Facilities

Don’t see your instrument on this list? We service products from thousands of manufacturers!
Please send an inquiry to anil@aogsoman.com with the Calibration range.

  • Vibration Meter Calibration
  • Gauss Meter Calibration
  • Sound Level Meter Calibration
  • UV Meter Calibration
  • Lux Meter Calibration
  • Air Velocity / Anemometer Calibration
  • Irradiance Meter Calibration
  • pH Meter Calibration
  • Conductivity Meter
  • Density Meter Calibration
  • Turbidity Meter
  • TDS Meter
  • ORP Meter
  • DO Meter
  • Chlorine Meter
  • Oil in Water Analyzers
  • KF Titrators
  • Oil Quality Analyzers
  • Fiber Optic Power Meters
  • Optical Fusion Splicers
  • Fiber Optic Light Wave Meters
  • Fiber Optic Spectrum Analyzers
  • Fiber Optic Converters
  • Tunable Laser Sources
  • Fiber Optic Time-Domain Reflectometers
  • Fiber Optic Return-Loss Meters
  • Fiber Optic Amplifiers
  • Fiber Optic Attenuators
  • Fiber Optic Sources

Don’t see your instrument on this list? We service products from thousands of manufacturers!
Please send an inquiry to anil@aogsoman.com with the Calibration range.

AOGS Calibrations is a full service gas detector calibration and repair facility working on most brands of gas detector. Our company understands that every situation is different and that is why we are always open for custom quotes. The following are some of the services we offer:

An Authorized Service center for the Honeywell products.

  • Alcohol Meter / Breathalyzer Calibration
  • Personal Gas Monitors Calibration
  • Emissions Monitors Calibration
  • Flue Gas Analyzer Calibration
  • Gas Leak Detector Calibration
  • Fixed Gas System
  • Area Monitoring

Don’t see your instrument on this list? We service products from thousands of manufacturers!
Please send an inquiry to anil@aogsoman.com with the Calibration range.

Volumetric Calibration of Pipettes and Laboratory Equipment’s

We offer volumetric calibration lab services, including IEC/ISO17025 volumetric pipette calibrations, volumetric calibrations of glassware, dispensers, burettes and automatic diluters.

  • Volumetric Instruments (Beakers, Flasks, Volumetric Containers, etc.)
  • Pipettes (Single / Multiple Channel)
  • Dispensers
  • Syringes

Don’t see your instrument on this list? We service products from thousands of manufacturers!
Please send an inquiry to anil@aogsoman.com with the Calibration range.

We calibrate virtually every type of instrument in this product category, including ultrasonic, Mass flow meter, Rotameters and liquid flow meters, from most every manufacturer. We offer both in house & Onsite flow calibration or Verification services.

  • Diesel Flow Meter
  • Oil Flow Meters
  • Water Flow Meters
  • Flow Measurement

Don’t see your instrument on this list? We service products from thousands of manufacturers!
Please send an inquiry to anil@aogsoman.com with the Calibration range.

We know that instruments fail or get damaged and replacing them is not always an option. This reason is why we operate our Repair in calibration lab. Incidents happen. Rough environments can cause unintended mechanical or Electrical damages, incorrect wiring can lead to electrical damage, and sometimes inexplicable errors just occur in devices.

Don’t worry, we help you. Our technical support is available 24/7 to assist in case of problems, errors or damages. Very often a simple call can solve tricky issues. Our service ensures that most issues can be handled near you, keeping transportation distances short.

If unavoidable, a repair can be initiated with the help of our Technical Support or your dedicated sales contact. It is essential that you provide us with a comprehensive error description to expedite the repair process. We are keen to reproduce the error to be sure we found what bothers you. We even go as far as to rebuild your test setup to ensure an identical test situation.

Well-thought-out processes and re-calibrations guarantee that the final repair process is as time-saving as possible. You can also request a rental device during the repair. This ensures a minimum downtime and a fast and cost-effective repair for you.

List repair services.
  • OEM Support Services
  • After Sales Support
  • In-Warranty Services
  • Authorized Service Center Support
  • In-Lab Repair Services
  • Subcontractor Services
  • Extended Warranty Services

We can offer cost effective repairs on many of the instruments that we calibrate.
OEM supportive repair also can be offered whenever its mandatory.

Don’t see your instrument on this list? We service products from thousands of manufacturers!
Please send an inquiry to anil@aogsoman.com with the Calibration range.

AOGS offers services to life science customers for a variety of analytical instruments such as HPLCs, GCs, Dissolution instrumentation, UV-VIS Spectrophotometers, and TOC Analyzers. We develop partnerships with our customers to identify specific needs within their regulatory environment.

In addition to our standard instrument calibration services, we also offer in-process calibration services at your facility. Our highly trained Engineers can come onsite to calibrate you’re in-process instruments including transmitters, sensors, switches, recorders, controllers, ovens, chambers, Flow meters and more.

Testing Services
  • Valve Testing & Calibration
  • Pressure testing

Validation / Condition monitoring Service.

For warehouses, chambers, and controlled environments

Understanding the critical process parameters of controlled environments is crucial to the safe and effective use of that space for manufacturing, storing, processing, and distributing pharmaceuticals, biologicals, and medical devices. AOGS mapping/validation service ensures that you fully understand the variability of conditions and qualify controlled environments.

This service includes:

  • Thermal mapping and analysis of environments
  • Mapping equipment used during the service
  • Mapping study documents

AOGS mapping service is currently available all over Oman & GCC Region. We also offer mapping data loggers, equipment, and expertise in other regions. For more information, please contact anil@aogsoman.com.

Noise Risk Surveys:

AOGS offers noise risk surveys, conducted where workers and others may be exposed to excessive noise levels. Every occupier of a factory must ensure that workers are not exposed to noise that exceeds the exposure standard level.

To assess noise levels, our experts use sound level meters and/or noise dose meters, which are designed to measure a frequency-weighted and time-weighted value of the sound pressure level in the locations where persons are working. In addition to conducting surveys, we suggest remedial measures to control the noise level and the use of PPEs.

Lighting/Illumination surveys:

AOGS Offer Lighting/Illumination surveys (daytime and artificial) are conducted to evaluate the quality of lighting at your workplace against statutory requirements and to recommend corrective actions where necessary. Our experts with the use of Lux meters, determine the type of work that takes place in each area, create lighting checklist, measure light levels and record them to compare with the standard required light intensity required to recommend corrective actions.

Don’t see your instrument on this list? We service products from thousands of manufacturers! Please send an inquiry to anil@aogsoman.com with the Calibration range.


Thermography inspection

There’s no universal solution for all infrared inspections with a thermal camera, also known as a thermal imager. You need to match your method to the type of equipment you’re inspecting and the level of detail you require. That said, there are three typical methods that cover most situations you’ll run into:

We Offer
  • Baseline thermography
  • Thermal trending thermography
  • Comparative thermography

Baseline thermography is a good place to start for just about any application. First, we scan the equipment when it’s first commissioned or later in the lifecycle when it is working the way it should be, and then use that as a reference point for future inspections. Whether we compare the thermal images on our camera in the field, or on your PC using software tools, this baseline approach paves the way to helping you spot anomalies down the road.

Once we have set baseline, we can use thermal trending inspections to compare how temperature is distributed in the same components over time. This can help to detect declining performance over time so that we can hopefully schedule downtime maintenance before equipment schedules it for you.

As you might expect, this means we scan similar components with our thermal camera under similar conditions and compare the results. This method relies on the idea that you expect similar or identical components, under similar loads, to have similar temperature profiles. Once you have three or more components it’s relatively easy to pick up an anomaly.
Specialised Services

1. PAT Testing
2. Indoor Air Quality Services.
3. Training.
4. CompEx certified support (PDO Approved)
5. Technical Manpower supply.

Don’t see your instrument on this list? We service products from thousands of manufacturers! Please send an inquiry to anil@aogsoman.com with the Calibration range.

How to Get Calibration & Testing Done?
  • Get quote for calibration/testing charges by specifying complete details of requirements, e.g., Name of equipment, Parameters, Range, Accuracy, etc., by sending a query through e-mail at the provided email address.
  • AOGS will book a slot for your calibration/testing job and intimate the date on which you have to submit your equipment and the expected date of completion of your job. You will be allotted a unique JAF Number or Quotation Number in this process. Please mention the reference whenever you communicate with AOGS after this process.
  • Submit your equipment at AOGS on the date you are required to do so.
  • After the submission of the job, contact AOGS through anil@aogsoman.com or +968 95122751 to confirm the completion of your job.
  • As you get intimation of the completion of your job, collect your equipment and calibration/testing certificates from AOGS Reception.
  • The person coming for collection of certificates and equipment should have his/her identity proof (preferably issued by the company) & the JAF filled and signed by AOGS.
  • Remember that AOGS does not dispatch calibrated equipment unless otherwise agreed (for international customers).
  • Please strictly comply with public dealing time between 8:00 AM to 5:00 PM on all working days as per the Sultanate of Oman standard.

How to Know Calibration / Test Charges & Site Calibration

AOGS Notice Board:

Working hours: 08:00 AM to 05:00 PM, Sunday to Thursday, except government holidays.

  • AOGS maintains traceability of measurement through national or international standards or the calibration providers including OEM.
  • AOGS is maintaining the Quality System as per ISO/IEC 17025:2017 and ISO 9001:2015.
  • AOGS is maintaining the Occupational Health & Safety Management System as per ISO45001:2018.
  • AOGS is maintaining the Environmental Management System as per ISO 14001:2015.
  • Standardized and validated methods are employed for calibration. If customers desire any particular method, the same may be communicated. However, calibration/test charges could be different in such cases.
  • All correspondence regarding calibration and testing should be addressed to the Head, Centre for Calibration and Testing AOGS quoting JAF reference number, if any.
  • Instruments/samples should be sent to AOGS Laboratory either through person or courier (DDP). In case of courier, put a label on the parcel “TO AOGS FOR CALIBRATION.” Courier accepted only if payment of charges is received in advance or along with the courier. Courier should include reference of the payment details. AOGS will not bear responsibility for condition and quantity of contents.
  • Customers must make their own arrangements for collection of instruments/samples within 15 days after completion, by authorizing a courier or person. Authorized collector must present JAF, proper authority letter, and photo ID. AOGS does not provide packing facilities. Uncollected instruments may be disposed at AOGS discretion.
  • Certificates/Reports must be collected within two weeks of job completion if opting for hand collection.
  • While sending enquiry for calibration/testing charges, customers must provide precise and complete requirements.
  • Calibration/test charges are payable in advance via Cash or E-transfer.
  • Foreign customers must contact AOGS for applicable calibration charges.
  • Service Tax applies in addition to calibration/testing/other charges.
  • Some calibration/test areas have long lead-times; customers are advised to book a time slot with 100% advance payment.
  • For faster service, AOGS offers “Express Service Scheme” where charges are double. Normal turnaround: 3–5 working days with minimum of 15 instruments.
  • If calibration/testing cannot be completed due to defective instruments/samples or reasons attributable to the customer, calibration charges will not be refunded.

Additional Guidelines for Foreign Customers:
  • Calibration Charges:
    The calibration charges available on this website are not applicable for foreign customers. Customers are requested to contact us for applicable calibration/testing charges.
  • Payment of Charges:
    Calibration charges are given in Omani Riyal and are payable in US Dollars ($) in advance. Customers should convert the total charges to US Dollars at prevailing rates when sending instruments to AOGS.
  • Delivery of Instruments/Samples:
    Instruments/samples should be sent via DDP (Delivery Duty Paid) cargo mode to Allied Oil & Gas Services LLC, P.O Box 1524, PC 133 Building No 705, Ground Floor, Way 5005, Block No 250, Plot No 192, Ghala, Muscat, Sultanate of Oman. AOGS will not pay any customs duty or freight charges.
  • To ensure hassle-free delivery, send the material through a reputable forwarding agent from your country and use the same agent to pick up the items after calibration/testing. AOGS does not provide packing facilities; this must be managed by the forwarding agent.
  • Custom Clearance:
    Customs formalities are handled by the customer or their designated forwarding agent. AOGS provides only the “Receipt of Payment and the Instruments/Samples,” “Bill of Payment” for calibration/testing charges, and the “Gate Pass” for the instruments/samples.

Site Calibration / Testing:

As per our policy decision, we advise our customers to bring the instruments in our Laboratory for their calibration/testing work. In exceptional circumstances, we do undertake the work on-site as per following guidelines:

  • The decision of accepting on-site calibration/testing work lies solely with AOGS.
  • Customers are advised to get a quotation from AOGS for on-site work. Charges for additional man-days on site are extra, in addition to standard calibration/testing charges.
  • Time-slot booking for on-site calibration/testing is required in consultation with the concerned laboratory department or by paying all charges in advance. Travel and local hospitality for Calibration Engineers are borne by the customer. Booking of journey tickets in consultation with the engineers is the responsibility of the customer.
  • Instrument handling charges are applicable in addition to the above-mentioned charges.
  • Tax is applicable on all charges.
  • Typically, one engineer and technicians are deputed for on-site work; travel time is included in man-days when calculating site charges.
  • Quoted charges are based on estimated work and journey time. Final charges are determined after completion of the job based on actual man-days spent.

FAQ

Ans. All the ‘parameters’ (like mass, temperature, force, AC/DC voltage, impedance etc.) and ‘areas of testing’ (Flow, IR Thermography, Valve) are listed on this web-page under the “Calibration & Testing LAB” link. For specialized jobs not listed here, please contact us.

Ans. The time depends on many factors such as workload at the time of job initiation for the concerned technical personnel and the equipment/standards used. AOGS handles high-level calibration/testing, so time estimates are not based on routine averages. Generally, a period of about 1 week is a fair estimate for practical purposes.

Ans. We do provide an expected date of completion even with the above limitations and try our best to complete the job within the given timeframe. Customers are informed in advance if there is any delay.

Ans. The date of recalibration depends on factors like frequency of use, care and handling, environmental conditions, operation & maintenance, etc. Responsibility for re-calibration lies with the user. Certificates include a recommended re-calibration date of 6 months or 1 year from the date of calibration. The validity does not provide any guarantee or warranty.

Ans. Under exceptional circumstances, ‘Express Service’ is provided at double the normal charges. Normal service for other customers is not affected. Customers must apply in advance justifying urgency. Acceptance of work under Express Service lies solely with AOGS.

Contact Us


Division Head : Calibration & Repair Services

Anil Kumar

+968 95122751

anil@aogsoman.com