ESAB · Weld Data Monitoring & Quality Assurance

ESAB Checkmaster 600R Resistive Load

The ESAB Checkmaster 600R is a resistive load bank that simulates an arc for the calibration, validation and function testing of welding power sources from 150 A to 500 A, delivering 0–600 A DC and 0–40 V with automated load switching, compliant with IEC 60974-14 and ISO 17662.

  • GMAW
  • GTAW
  • SMAW
  • SAW
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Price on request. POFIS is an ESAB Authorized Distributor & Service Centre in Abu Dhabi — quotations include confirmed lead time and delivery terms.

ESAB Checkmaster 600R resistive load bank on a wheel kit beside an ESAB Rustler welding power source, connected for calibration
Mains voltage
100–230 VAC
Welding output
600 A @ 30%
Load range
12–600 A
Enclosure class
IP21
Standards
IEC 60974-14

Where it is used

ESAB Checkmaster 600R Resistive Load applications and industries

  • Calibration and validation of welding power sources to IEC 60974-14 and ISO 17662, as part of an ISO 9001-based quality system.
  • Function and consistency testing of welding machines during repair and maintenance, before returning a machine to production.
  • Large-scale calibration work, where two Checkmaster 600R units linked through the WeldScanner switch resistive loads simultaneously and support calibrations up to 1200 A.
  • GTAW calibration, which the unit is high-frequency ignition proof for.
  • Workshops needing a repeatable artificial load rather than welding real coupons to test a machine.

Industries

  • Welding Equipment Service and Repair
  • Oil and Gas
  • Pressure Vessel Fabrication
  • Shipbuilding and Offshore
  • Power Generation
  • Third-Party Inspection and Calibration Laboratories

Features

ESAB Checkmaster 600R Resistive Load features and capability

Simulates an arc without welding

A resistive load bank presents the power source with a controlled, repeatable load instead of a real arc. Testing a machine by welding introduces the operator, the consumable and the joint into the measurement; a load bank removes all three, which is what makes a calibration defensible.

Automated load switching for safety

Load switching is automated, which ESAB states enhances user safety. Changing taps by hand on a live high-current load is the part of manual calibration that goes wrong, and automating it removes that exposure.

Near-unattended calibration with the WeldScanner

Linked with the ESAB WeldScanner, minimal user intervention is needed for calibration or validation. The pairing is what turns a calibration from a two-person afternoon into a largely automatic sequence.

Two units in parallel for up to 1200 A

Integration with the WeldScanner allows parallel operation of two Checkmaster 600R units, automatically switching resistive loads simultaneously. That streamlines large-scale measurement tasks and supports calibrations up to 1200 A — which is what submerged arc and heavy multi-process equipment requires.

AC as well as DC capability

DC capability is 0–600 A and 0–40 V. AC capability is 0–420 A (600 A peak) and 0–40 V (60 V peak), with true RMS measurement for sinusoidal waveforms. A DC-only load bank cannot validate an AC TIG machine.

Sensor sockets built in

Equipped with a gas flow socket (GM30L series), a wire feed speed socket (DV25 series) and a traversal speed socket, so the full parameter set is captured from one connection point rather than from scattered adapters.

HF ignition proof with stable load elements

Features extra stable resistive load elements and is GTAW high-frequency ignition proof. Load element stability is what keeps successive calibrations comparable; HF proofing is what lets you calibrate a TIG machine at all.

Calibration traceable to national standards

The Checkmaster 600R and its sensors are delivered with printed calibration certificates traceable to national standards. The recommended recalibration interval is annual.

Technical data

ESAB Checkmaster 600R Resistive Load full technical specifications

Published manufacturer specifications. Where a figure affects your welding procedure, confirm it against the instruction manual for your specific configuration.

Electrical — ESAB Checkmaster 600R Resistive Load
Mains voltage 100–230 VAC, 50/60 Hz, 2 ph
Fuse, slow Max 2.5 A at 230 VAC / max 5 A at 115 VAC
Welding output 600 A / 40 V at 30% duty cycle; 250 A / 30 V at 100% duty cycle
Load range 12–600 A
DC current capability 0 to 600 A
DC voltage capability 0 to 40 V
AC current capability 0 to 420 A (600 A peak), true RMS for sinusoidal waveforms
AC voltage capability 0 to 40 V (60 V peak), true RMS for sinusoidal waveforms
Open circuit Max input 141 VDC / VAC peak level
Compatible power sources 150 A to 500 A; up to 1200 A with two units in parallel
Physical & environmental — ESAB Checkmaster 600R Resistive Load
Enclosure class IP21
Operating temperature ±10 K at 25 °C (77 °F)
Standards & calibration — ESAB Checkmaster 600R Resistive Load
Standards IEC 60974-14 and ISO 17662
Quality system Aligns with ISO 9001-based quality system requirements
Calibration Printed certificates traceable to national standards; annual recalibration recommended
Sensor sockets Gas flow (GM30L), wire feed speed (DV25), traversal speed

Ordering information

ESAB Checkmaster 600R Resistive Load part numbers

Quote these part numbers on your enquiry or LPO to guarantee the exact configuration. If you are unsure which variant suits your application, send us the joint details and we will specify it.

Checkmaster packages

Description Part number
Checkmaster 600R Includes Checkmaster 600R, mains cable for 1 ph 230 VAC (CEE 7/7) and 5 m connection cable. HKS0020011
Checkmaster 600R P350/500 As above plus the P350/500 current and voltage sensor. HKS0020012
WeldScanner Validator + Checkmaster 600R package Includes Checkmaster 600R, mains cable, 5 m connection cable, P350/500 sensor, WeldScanner S3 with Validator software, EU keyboard, DV25 M wire feed sensor, OKC voltage plugs, Euro-to-OKC adapter and robust case. HKS0003100

Options & accessories

Description Part number
4-wheel trolley 0349313450
Wheel kit 0465416880
Mains cable NEMA 5-15R HKS0003103
Mains cable CEE 7/7 HKS0003104
Plugs for voltage feedback, OKC HKS0000322
Euro style to OKC adapter B01P701012
Tweco to Euro style adapter 25352192
Checkmaster lead package, OKC HKS0003101
Wire feed speed sensor DV25M HKS0001428
Gas flow sensor GM-30 L 10B HKS0001425
Manual control for Checkmaster 600R HKS0003102
Calibration process sensor HKS0002417
Recalibration, gas flow sensor HKS0000204
Calibration labels, 100 pcs HKS0003105

Downloads

ESAB Checkmaster 600R Resistive Load datasheets and manuals

Need the instruction manual or spare parts list for this machine? Request it from weldiv@pofis.ae and we will send the current revision.

Frequently asked

ESAB Checkmaster 600R Resistive Load — common questions

What is a resistive load bank used for in welding?

It gives a welding power source a controlled, repeatable electrical load instead of a real arc, so the machine’s output can be measured without the operator, consumable and joint affecting the result. That is what makes a calibration or validation defensible rather than indicative.

What size welding machines can the Checkmaster 600R test?

Power sources from 150 A to 500 A, with a load range of 12–600 A. Two units operated in parallel through the WeldScanner support calibrations up to 1200 A.

Does the Checkmaster 600R work with AC machines?

Yes. AC capability is 0–420 A (600 A peak) and 0–40 V (60 V peak), with true RMS measurement for sinusoidal waveforms, alongside 0–600 A and 0–40 V DC.

Can it be used with TIG machines?

Yes — it is GTAW high-frequency ignition proof, so HF starting will not damage it.

What standards does the Checkmaster 600R support?

It enables calibration and validation to IEC 60974-14 and ISO 17662, aligning with ISO 9001-based quality system requirements. Calibration is traceable to national standards.

Do I need a WeldScanner as well as the Checkmaster?

The Checkmaster provides the load; the WeldScanner Validator provides the measurement and issues the certificate. Linked together, minimal user intervention is needed. The combined package HKS0003100 supplies both, and HKS0020012 supplies the Checkmaster with the P350/500 sensor.

How often does the Checkmaster 600R need recalibrating?

Annually. The unit and its sensors are delivered with printed calibration certificates traceable to national standards.

Where can I buy welding calibration equipment in the UAE?

POFIS is an ESAB Authorized Distributor and Service Centre in Abu Dhabi. Request a quotation on this page or email weldiv@pofis.ae for price, package selection and lead time.

Procurement & supply

Buying the ESAB Checkmaster 600R Resistive Load through POFIS

The ESAB Checkmaster 600R Resistive Load is supplied from Abu Dhabi by Perfect Oilfield & Industrial Supply LLC as an ESAB Authorized Distributor and Service Centre. The information below covers what procurement and QA/QC departments normally need before raising a purchase order.

Lead time

Stock items dispatch from Abu Dhabi within 24–48 hours. Indent items are quoted with a confirmed lead time at the time of offer.

Approved vendor status

POFIS is an approved ADNOC vendor and is listed on the approved vendor lists (AVL) of major operators and EPC contractors across the GCC. We can complete supplier registration and prequalification documentation on request.

Payment terms

Standard credit terms are available to registered corporate accounts. LPO, LC and advance payment are all accepted.

Delivery terms

Delivery across the UAE and the wider GCC. Quotations can be issued on EXW, FOB, CIF or DDP terms to suit your project.

Warranty

Full manufacturer warranty, honoured locally. As an ESAB Authorized Service Centre we carry out warranty work and repairs in Abu Dhabi rather than returning equipment abroad.

Service & spares

In-UAE service, commissioning, operator training and spare parts backing for every machine we supply.

  • ISO 9001 Certified
  • Approved ADNOC Vendor
  • ESAB Authorized Distributor & Service Centre

Price on request

Request a quotation for the ESAB Checkmaster 600R Resistive Load

Send the form and the POFIS welding division replies with pricing, confirmed lead time, delivery terms and availability. Tell us who you are and what the job is, so the reply can be specific to it rather than a catalogue price list.

Received by the POFIS welding division and answered by email or phone, usually within one working day.