Functional Description - Ametek Jofra DTI-1000 A Reference Manual

4.1

Functional description

The DTI is used for measuring inputs from two RTD sensors. The two
sensors are connected to the connectors in the top plate. The input
signal is compared to the two internal resistor references from which
the input signal can be determined.
The DTI operates with a 2*20 character display, which continuously
read out the two inputs.
The input value can be shown as the actual read value for both
sensors, the peak values for sensor 1 or 2, the differential value for
the two sensors or as the differential peak value for the two sensors.
The input value can be shown in Ω, °C, °F or K selected by the user.
The resolution in temperature can be 0.1, 0.01 or 0.001.
The sensor coefficients can be inspected by the user and changed in
the software program.
The power supply is made by eight 1.5 Volt batteries or a mains
adapter. Use only mains adapter supplied by AMETEK in order to
comply with the requirements in EN50081-1 (1992) and EN50082-1
(1992).
It is possible to connect the shields from the cables to the cabinet, in
order to reduce the influence of noise.
The DTI-1000 is supplied with RS232 and software, in order to have
the possibility of saving the measured data and to recalibrate the DTI
or the sensors.
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