The Ametek ASM Series (Advanced Signal Multi-scanner) (ASM-801/ ASM-802/ ASM-803) offers a unique time-saving and automatic solution to calibrate multiple temperature sensors simultaneously.
The ASM series is designed for use whenever temperature measurement is critical and/or there is a need for traceable calibration documentation.
Easy, flexible and time-saving!

Basic versions
The ASM Series is available in 3 versions depending on the kind of sensors to be measured.  ASM-801 has 8 universal plugs. This is a fixed screw terminal solution used to measure RTD’s, TC’s, mA, voltage, ohm, and transmitters. It measures the cold junction (CJ) temperature for each channel and is able to supply a very accurate cold junction (CJ) temperature compensation.
ASM-802 has 8 small TC plugs for measurement of TC sensors. This modeI also measures the cold junction (CJ) temperature for each channel and is able to supply a very accurate cold junction (CJ) temperature compensation.
ASM-803 has 8 LEMO plugs, which are primarily for measurement of RTD sensors. This solution makes it possible to measure current, voltage and ohm. It has built-in loop power supply for each channel.

Models
The ASM multi-scanner is made in an A and a B model. The ASM B model is the complete solution with integrated scanner and high accuracy multi signal measuring circuits. The ASM A model is less expensive and is designed to add 8 channel scanning capabilities to an existing instrument.
The A model therefore needs the measuring capabilities from a JOFRA dry-block ATC B model, JOFRA ASC300 signal calibrator, DTI-1000 reference thermometer or an ASM B model.

A model
The A model use the measuring circuit of an existing instrument. This means that the normal set-up of the measuring equipment is used, and the multi-scanner then makes it possible to calibrate up to 8 sensors simultaneously. The built-in cold junction temperature measuring circuit ensures high accuracy when calibrating thermocouples. The A model is also capable of working without the JOFRACAL with a manual channel selector at the back. The A model may transmit an analogue signal of up to 8 sensors to one connected measuring device. It is able to transmit signals up to 30VDC, 30 mA.

B model
The B model has the same functions as the A model, but it differs as it is not necessary to include a measuring instrument in the set-up, as the multi-scanner has build-in measurement capabilities. The most important advantage of the B model is the fact that it is possible to obtain huge reductions in time of the calibration procedure. The B model is able to perform several measurements each second, whereas the A model as an example will spend approx. 15 seconds on each measurement, when connected to an ATC B model. The B models is able to measure voltage up to 10V, resistance up to 4KΩ and current up to 24mA.