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PCB Copper Thickness Gauge ITM-525
The battery powered hand-held gauge ITM-525 is the enhanced successor to the INTROMET ITM-52 sold in quantity worldwide. The gauge is designed for fast, precise, non-destructive measurement of copper thickness in plated through-holes (TH) of printed-circuit boards (PCB) and measurement of copper on laminate. This gauge can be used for in-process control to maintain high-quality PCB production.
Principle of operation
The gauge utilizes eddy-current principle for measurement copper thickness in the holes and four-point electrical resistance principle to measure copper thickness on laminate.
- Features
- measures in smaller holes than others
- measures copper thickness on laminate
- applicable for single, double and multilayer PCB
- measures copper thickness under SnPb coating
- measures on wet PCB
- only one-side access to the board required
- boards of unlimited size measured
- calibrated with NIST traceable standards
- can be calibrated by the customer
- automatic zeroing
- fast and accurate reading
The ITM-525 consists of a basic unit offering a variety of probe sizes.
The ITM-525 basic unit is adjustable for thickness of PCB, electrical conductivity, measuring units (metric or imperial), high and low limits, local time and alarm. It stores up to 15,000 readings and has USB downloading capabilities. Built-in functions include number of readings taken, min/max reading, mean value, standard deviation, range, Cp, Cpk, histogram. It is battery powered and equipped with an internal charger.
Probes and cartridges
Eddy-current probes for through holes are detachable, consisting of a probe holder with replaceable EP-25 and EP-30 plug-in cartridges. The EP-20 probe is not detachable. Probe sensing tips (US Pat. 5,600,240) are inserted into through-holes to take readings. Due to special construction of probe tips, cracks in the copper may be detected. Probe tips are protected with special material to provide measurements in wet holes. Measurements are possible on etched or un-etched PCBs.
The cartridge during measurement copper thickness in the hole. The stainless tip with coils inside is inserted into the hole firmly.
ITM-525 set may include the following items:
- ITM-525 basic unit
- EP-20 probe
- EP-25 cartridge
- EP-30 cartridge
- EP-25S shortened probe
- EP-30S shortened probe
- Cartridge holder
- Reference standard RS-52-1 for the EP-30/EP-30S
- Reference standard RS-52-2 for the EP-25/EP-25S
- Calibration unit for EP-25/EP-30/EP-25S/EP-30S
- Reference standard/calibration unit RS-52-3 for the EP-20
- Hand-held probe guide
- Copper surface probe (CSP) probe
- CSP calibration foils
- AC adapter
- USB cable
- Operating Manual
- Plastic storage case
ITM 525 specification
| PCB thickness range | 0,5 - 6 mm |
| Hole diameter range | 0,45 - 2 mm |
| Measuring range in the hole | 5 - 60 µm |
| Measuring range on copper laminate | 15 - 80 µm |
| Minimum continuous operation | 10 hours |
| Weight | 280 g |
| Size | 155 x 80 x 30 mm |
| Stored readings | 15,000 |
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| Tel.: +7 (495) 6655431,+7 (495) 2293747 Fax: +7 (495) 5101769 | e-mail: info@intron-plus.com |