Service Center - LMI (Sweetwater, TX) - Ludlum Measurements Inc.

LMI (Sweetwater, TX)

Protean (Knoxville, TN)

Fixed Contamination Instruments

Contact Information

Phone (Toll Free): (800) 622-0828
Phone: (325) 235-5494
Fax: (325) 235-4672
Email:

ISO/IEC 17025 Accredited

Certificate #4084.01

Our Online Customer Portal for Service

Our Service Center at the Ludlum Measurements' main facility in Sweetwater, Texas provides calibration and repair service to all Ludlum instruments, plus calibration services to over 150 different non-Ludlum radiation detection instruments. We process over 500 instruments every week to customers who demand world class service, extensive experience, quick turnarounds, and low-cost solutions.

Over 20 Technicians & Calibrators
5400 sq. ft. Factory Service Center
3 Calibration Ranges
Fully Tooled Workstations
Extensive Repair Parts Inventory

ISO 17025 & 9001 Certified
NIST Traceability
ANSI N323 Compliance
Full Engineering Support

How Does the Process Work?

Return Material Authorization numbers are not required to send instruments to Ludlum for repair or calibration. However, we do require:

An email or fax of the Instrument Return Form (IRF) prior to shipment (see below).
A copy of the completed IRF to be placed in each box with the instrument(s) to be shipped.

If appropriate documentation is not included, the desired service will be delayed until the proper paperwork is received.

If your instrument requires repair, describe the issue in the "Special Instructions" section of the IRF. Once we receive your instrument, our technician will diagnose the problem and then contact you with a no-charge repair estimate and request your approval to proceed. If you decide not to have the repair work done, we will return the instrument to you at no charge or dispose of it for you.

When we have finished the calibration and/or repairs, we will send you a proforma invoice so that you can either issue a purchase order or pay online by credit card. Once we have received payment, we will package your instrument(s) and return them to you via UPS, FedEx, or DHL.

Instrument Return Form (IRF)

Please select the appropriate form based on your location.

Instrument Return Form - USA (PDF format)
Instrument Return Form - International (English) (PDF format)
Instrument Return Form - International (Spanish) (PDF format)

(Forms are fillable when downloaded and viewed with Adobe Acrobat)

IMPORTANT: Clearly denote on the IRF if the calibration certificate is to be made out to another party. Re-writing calibration certificates will incur additional charges.

Shipping Address

All instruments requiring service should be shipped to the following address:

Ludlum Measurements, Inc.
Attn: Service Department
501 Oak Street
Sweetwater, TX 79556
USA

Services

Calibrations

service calibration range with technician

Ludlum Measurements' Calibration Departments in Sweetwater, TX and Knoxville, TN are accredited by A2LA (American Association for Laboratory Accreditation) in accordance with the ISO/IEC 17025:2017 and ANSI/NCSL Z540-1-1994 standards. (See Our Certifications tab for more info).

A standard Ludlum calibration includes:

One (1) Detector
"As Found" Readings
Two (2) Points per Range
NIST Traceability
ANSI N323 Compliance
Two (2) Efficiencies, If Requested
Routine Battery Contact Cleaning, Where Applicable

Additional calibration requirements may incur extra fees. Examples include: additional detectors, efficiencies, gas charging, etc.

Calibration Fees

Calibration fees vary depending on the model of the instrument, number of detectors, customer requirements, etc. The table below lists the fees for common Ludlum instruments. Please note that calibrations with multiple detectors will incur additional fees. If your instrument is not listed below, please contact us for pricing.

All prices are for domestic (USA) customers only. Contact us for international pricing.
Exposure rate calibrations are performed using a ¹³⁷Cs source.
Return Material Authorizations (RMAs) are not required.
Prices are subject to change - please contact us for current pricing.

Calibrations with ²²⁶Ra

Calibrations with ²²⁶Ra are not included in our ISO/IEC 17025 certification. We can offer calibrations with ²²⁶Ra, but they will not be ISO/IEC 17025 certified.

To view the calibration sources included in our certification, please see our ISO/IEC 17025 certificate.

Pricing Effective Date: September 1, 2024

Model	Description	Fee
3	Survey Meter	$85
5	Geiger Counter	$105
6	Geiger Counter	$85
9	Ion Chamber	$100
9-3	Ion Chamber	$110
9-4	Ion Chamber	$150
9-7	Ion Chamber	$180
9DP Series	Ion Chamber (if chamber is received pressurized) *	$180
9DP Series	Ion Chamber (if chamber is received unpressurized)	$210
* Note: 9DP and 9DP* instruments with pressurized chambers are considered HAZMAT
12	Survey Meter	$85
12-4	Neutron Dose Survey Meter	$200
14C	Survey Meter	$105
15	Neutron Dose Survey Meter (neutron detector and other external detector)	$215
19	microR Survey Meter	$85
23 Series	Electronic Personal Dosimeter	$75
25 Series	Personal Radiation Monitor	$150
26 Series	Frisker	$135
30-4	Neutron Survey Meter	$250
30-6	Extended Reach microR Survey Meter	$240
78	Stretch Scope	$150
79	Stretch Scope	$165
177	Benchtop Counter	$110
192	microR Survey Meter	$100
193	microR Survey Meter	$100
193-6	Extended Reach microR Survey Meter	$120
375	Area Monitor Controller	$110
375/2	Area Monitor	$110
375/4	Area Monitor	$110
375-9	Area Monitor	$180
500	Pulse Generator	$150
2000	Scaler	$120
2200	Scaler/Ratemeter	$120
2221	Scaler/Ratemeter	$120
2224	Scaler/Ratemeter	$120
2241	Scaler/Ratemeter	$110
2241-2	Scaler/Ratemeter	$110
2241-3	Scaler/Ratemeter	$110
2241-4	Neutron Dose Survey Meter	$200 calibration with ²⁵²Cf: add $50
2350	Data Logger	$200 additional settings: $60
2360	Data Logger	$180
2363 with 42-41L	Neutron Dose Survey Meter	$230
2401 Series	Pocket Size Survey Meter	$85
2402	Pocket Size Survey Meter	$85
2403	Pocket Size Survey Meter	$85
2929	Alpha-Beta Scaler	$180
3000	Survey Meter	$150 additional detector: $30 each
3001	Survey Meter	$150 additional detector: $30 each
3002	Alpha-Beta Survey Meter	$180 additional detector: $30 each
3003	Survey Meter	$180 additional detector: $30 each
3006	Extended Reach microR Survey Meter	$180
3014	Survey Meter	$300 additional detector: $30 each
3030	Alpha-Beta Sample Counter	$180
3030P	Alpha-Beta Sample Counter	$180
3276	Multipurpose Digital Meter	$150
4612	12 Channel Benchtop Counter	$195 additional boards: $40 each
4901P	Hand & Shoe Monitor	$240

Repairs

service technician at desk Our Service Technicians excel at troubleshooting and repairing any Ludlum instrument we have ever produced since our founding in 1962. From probes, to handhelds, to walk-through monitors, our Techs perform an average of 380 repairs per month and most with a 7-10 business day turnaround.

If your instrument requires repair, please describe the issue in the "Special Instructions" section of the Instrument Return Form (IRF). Once we receive your instrument, our technician will diagnose the problem and then contact you with a no-charge repair estimate and request your approval to proceed. If you decide not to have the repair work done, we will return the instrument to you at no charge or dispose of it for you.

Repair and modification charges are billed on a Time and Materials basis. Technician labor is billed for actual time at the rates shown on the Labor Rates tab.

Unfortunately, repairs to non-Ludlum brands are limited due to the availability of proprietary technical data, parts, software, etc. Please contact us to discuss your specific needs prior to sending in a non-Ludlum instrument for repairs.

Quotes

We are happy to provide quotations on a Ludlum letterhead at no charge. Just follow the instructions below, and we will send you a no-charge quote within 24 hours. (Please note that quotes for large quantities of instruments can take longer to process.)

Fill out the Instrument Return Form (IRF) for the instrument(s) and detector(s) you plan to send in.
In the section at the bottom of the form, include any special instructions on you may have, such as, "calibrate with ²³⁰Th".
Email or fax the IRF to the contact information listed above requesting a quotation.

Note on Repairs: Accurately quoting repairs is difficult without first troubleshooting the instrument’s problem and will not be included in our quote. See the Repairs tab for more information related to our repair services.

Our Certifications

ISO/IEC 17025:2017 Accredited

Ludlum Measurements' Calibration Departments in Sweetwater, TX and Knoxville, TN have been accredited by A2LA (American Association for Laboratory Accreditation) in accordance with the ISO/IEC 17025:2017 standard, as well as the ANSI/NCSL Z540-1-1994 standard. Consistent with our commitment to excellent customer service, this accreditation affirms the quality and reliability of our calibration service for both newly manufactured instruments and instruments sent in for calibration.

Certificate #4084.01

Click the links below to view our accreditation certificates.

For more information on the ISO/IEC 17025:2017 standard, visit the ANSI Webstore.

Labor Rates

The labor rates published below are for Ludlum instruments only. Please contact us regarding pricing for other manufacturer's instruments.

Labor Type	Labor Rate (per hour)
Technician	$150
Engineering 1	$210
Engineering 2	$315
Machine Shop	$100
Quality Assurance	$125
Project Management	$280
Purchasing	$125
Sales & Marketing Support	$100
Engineering Technician	$150
Environmental / Radiological Testing	$150
Programming	$150
Assembly	$100
Administration 1	$75
Administration 2	$160
Administration 3	$315

FAQs

How often should I calibrate my instrument?

Ludlum Measurements, Inc. recommends recalibration at intervals no greater than one year, assuming that regular operational checks are performed. Check the appropriate local, state, and federal regulations to determine required recalibration intervals.

There are two general exceptions to the above recommendation:

Ludlum recommends the Model 25 Series Personal Radiation Monitor to be recalibrated every two years.
Portal Monitors and other fixed units considered as primary detection units, and not measuring units, may not need to be calibrated as long as functional tests (i.e. check source) are ok.

Can I get a quote for calibrating and/or repairing my instrument?

Do you calibrate or repair non-Ludlum instruments?

We routinely calibrate over 150 different models from various manufacturers for customers around the world. Please contact us for a no charge quote to calibrate your non-Ludlum instrument.

Repairs to non-Ludlum brands are limited due to the availability of proprietary technical data, parts, software, etc. Please contact us to discuss your specific needs prior to sending in your non-Ludlum instrument for repairs.

Do I need a Return Material Authorization number?

How do I pay for a calibration and/or repair?

Do you offer a Rush Service?

How is freight charged?

Are my instruments safely packaged for return?