External temperature reference probe to improve calibration accuracy

The JOFRA PTC series B and C can be built using a built-in temperature probe or an external reference probe. Not only can be used directly in the field, but also can provide a higher accuracy in the laboratory. The temperature value of the built-in reference probe and the external reference probe can be directly displayed on the screen. When the temperature of the thermostat is required to be equal to the set point temperature, the external reference temperature control can also be used.

Jofra PTC series professional dry body furnace

AMETEK has been continuously developing new technologies to improve the performance of JOFRA dry furnace, accuracy, usability and functionality, which makes AMETEK has maintained a leading position in the global temperature field of dry calibration.

The new generation of JOFRA PTC series dry furnace is the original JOFRA ATC series of alternative products, it can precision calibration of the temperature probe of various types. She inherited the technology and characteristic of ATC series dry furnace characteristic, and has the following unique advantages:

Color VGA LCD screen for reading and monitoring the temperature field

Intelligent calibration information reminder (IRI)

Rapid temperature rise and save time

Intuitive, fast and friendly user interface

High and low temperature limit, to protect the temperature probe

Light weight, easy to carry

Novel appearance, more JOFRA brand quality assurance

Unique temperature characteristics

PTC series dry oven can be used for various types of temperature probe precision calibration, thanks to its innovative dual zone heating technology. Each heating zone can be controlled separately for accurate temperature measurement. The consistency of the temperature at the bottom of the thermostat is very close to that of the laboratory. The following heating area ensures the proper heat consumption of the whole thermostat, and the upper heating area compensates for the heat loss of the upper part of the thermostat and the measured sensor. This design does not need to be insulated probe, can be calibrated with liquid or other mechanical probe.

MVI- improve temperature stability

MVI stands for "Mains power Immunity'", i.e., power fluctuation cancellation (Variance). The unstable power supply is the main reason for the accuracy of the field calibrator.

JOFRA RTC dry oven uses MVI technology to avoid the problem of instability. The MVI circuit monitors the supply voltage and ensures that the heating element is stable.

PTC series is divided into the following models:

PTC-156 series: PTC-125A, PTC-125B, PTC-125C

PTC-157 series: PTC-155A, PTC-155B, PTC-155C

PTC-158 series: PTC-350A, PTC-350B, PTC-350C

PTC-159 series: PTC-660A, PTC-660B, PTC-660C