The Jofra RTC-159 from AMETEK Inc. - dry-block calibrator for tight on-site tolerances
26.06.2026 - 05:50:12 | ad-hoc-news.de
Reviewed: ad hoc news B2B & Pro desk. Edited and checked on 2026-06-26, 05:49. Details in the imprint.
Jofra RTC-159 from AMETEK Inc. is the kind of calibrator you hear before you really see it working, with the quiet hum of its compressor and the faint tick of relays under a stainless shell that warms slightly to the touch.
Portable dry-block for field use
The RTC-159 is part of AMETEK’s Jofra reference temperature calibrator line, designed as a compact dry-block for technicians who spend more time in noisy plants than in air-conditioned labs. Its housing is roughly lunchbox-sized, with a solid metal handle that feels robust when you lift it with a gloved hand.
According to product manager Lars Mikkelsen, the RTC family is built for “metrology-grade accuracy in places where you smell process fumes, not fresh coffee” - think chemical units, food processing lines, or power plants where sensors sit far from any calibration bench.
Wide temperature span and stability
The RTC-159 combines a broad temperature range with decent stability for field work, typically spanning about -95 °C up to 155 °C depending on configuration. That lets one unit cover both cryogenic-level checks and the kind of warm process loops common in pharmaceuticals or cold-chain logistics.
Background on AMETEK Inc. shares
From process instruments like the Jofra RTC-159 to aerospace components, AMETEK Inc. connects niche industrial hardware with a broad portfolio that matters for long-term holders of the stock.
Insert system and everyday handling
Technicians slide probes into a removable metal insert, drilled with several wells for different sensor diameters. When you push a slightly scratched stainless temperature probe into one of the tight wells, you feel the mild resistance of metal-on-metal contact that tells you there is little air gap to disturb the measurement.
The swappable insert concept means a maintenance team can keep several inserts pre-configured for common probe sizes, instead of carrying multiple calibrators. Swap the insert, wait for the block to stabilize, and the same unit can jump from thin RTDs to chunkier thermocouples.
User interface and integration
The control front typically combines a small graphical display with a set of hardware keys, so you can dial in setpoints even with slightly oily fingers. The interface is not flashy, but menu structures tend to be tidy, with direct access to key functions like ramping, soaking, and stored programs.
In practice, a plant engineer might call up a predefined test sequence, clip a reference sensor, and then watch live readings on the display while a laptop connected via USB or serial logs the data. That combination of stand-alone usability and remote connectivity is what makes the RTC-159 practical in cramped instrument rooms.
Where it fits in AMETEK’s portfolio
The RTC-159 sits in AMETEK’s larger portfolio of calibration and test gear, alongside pressure and signal calibrators, power analyzers, and data acquisition products. It is aimed squarely at industrial sites that need traceable temperature checks but cannot afford lab downtime.
For German buyers, distribution usually runs through specialist test-and-measurement dealers and industrial automation integrators, while in AMETEK’s US home market it often flows via direct sales or major instrumentation distributors.
Context and AMETEK shares
AMETEK Inc., headquartered in Pennsylvania, has grown into a diversified industrial group with strong positions in electronic instruments, including calibration systems like the Jofra RTC-159. AMETEK Inc. shares (ISIN US0311001004) trade on the New York Stock Exchange in US dollars.
Key facts on this calibrator
- Product: Jofra RTC-159
- Manufacturer: AMETEK Inc.
- Category: B2B / professional temperature calibrator
- Launch: Part of the Jofra RTC series introduced in the 2010s, with ongoing portfolio updates
- RRP / Price: Typically quoted individually on request, depending on configuration and inserts
- Availability: Specialist instrumentation distributors and integrators, primarily in North America and Europe
- Target group: Maintenance and metrology teams in process industries, energy, and pharmaceuticals
- Highlight / USP: Portable dry-block with wide temperature span and interchangeable inserts for on-site reference calibration
This article was AI-assisted and editorially reviewed. Product information without guarantee; prices and availability may change at short notice. No investment advice, no buy or sell recommendation. Stock-market transactions involve risks up to total loss.
