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5.1.1.
S
TATUS INDICATION SIGNALS IN MEASURING MODE
HART respond signals
LED status signals on the unit
The properly installed device with factory default settings gives the following
responses to the COM3 universal HART command:
primary value Level
secondary value Level
tertiary value Distance
quaternary value Temperature (See P01 programming).
Green LED COM
Lights up during HART programming.
Red LED ECHO
Lights up when the device gets proper echoes.
5.2.
S
AFETY REGULATIONS OF THE
E
X APPROVED UNITS
Ex certified devices are approved for Zone 20 and Zone 21 areas.
Transmitters must not be installed in the dust path of the pneumatic filling!
Neither the device, nor any part of it should be used as a flame-proof barrier of a
Zone 20 area.
The cable outside the unit should be fixed so that it is tension-free.
The terminal box should be selected in accordance with the electrical class of the
area.
5.3.
P
ROGRAMMING
HART interface of the EasyTREK enables full access and programming of the complete parameter set.
Parameters can be accessed by two ways:
- with a HART modem and EView or Eview light configuration software run on a PC
- by the HiTECH/NIVELCO made MultiCONT multichannel controller
This instruction describes parameters and features behind them but does not deal with technical details for their selection and editing of their values. Compact Disk
attached to the transmitter contains detailed information on the Eview configuration software (to install on PC) and its description. Programming by the MultiCONT can
be taken from its Installation and Programming Manual.
Continuous measuring is going on during programming in accordance with the last programmed parameter set. This way the analog output signal
(4-20mA) continuously represents the actual value. The digital (HART) communication depends on the communication software. The new, modified
parameter set will be valid after returning to measurement mode. The device changes back to measurement mode automatically in 1 minute after
programming through HART communication has been finished or discontinued.
Summary of Contents for EasyTREK SCD-300 Series
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