Description Of Unit Functions - Endress+Hauser iTEMP TMT 122 Bedienungsanleitung

iTEMP® HART® Communication
Endress+Hauser
®
For detailed ReadWin
documentation contained in the ReadWin
downloaded free of charge from the Internet on the following address:
• www.endress.com/Readwin
Customer-specific linearization
Customer-specific linearization and sensor matching are activated after the POLYNOM
RTD sensor type is selected. Pressing the "LINEARIZATION" key starts the SMC 32
module. The sensor's support points and temperature deviation are entered in the
SMC 32. Pressing the "CALCULATE" key calculates the linearization and "OK" adopts
®
it into ReadWin 2000.
Linearization coefficients X0 to X4 are entered into the COMMUWIN II operating matrix
or in the DXR 275 HART

3.2.5 Description of unit functions

The following table contains a listing and description of all unit functions of the HART
protocol that can be used for setting up the temperature transmitter.
Hint!
Factory default values are shown in bold text.
®
The HART operating module (DXR275) display is indicated by the following symbol
Function group: WORKING PARAMETERS
Primary value
• V0H0
• (PV)
Int: temperature
• V0H1
Time filter
• V0H2
RJ Mode
• V0H3
Ext. RJ Value
• V0H4
2000 operating instructions please read the on-line
®
2000 software. ReadWin
®
handheld terminal.
Display of actual measured temperature.
Display: 7-digit number with floating decimal point and engineering unit.
(e.g. 199.98 Ohm; -62.36 deg. C)
Display of the actual measured temperature of the internal comparison
measurement point.
Hint!
Display: 7-digit number with floating decimal point and engineering unit.
1
(e.g. 23.70 deg. C)
st
Digital filter selection 1 grade.
Input: 0...100 seconds
0 sec.
Selection of internal (Pt100) or external (0...80 °C) cold junction
compensation.
Entry: internal; external
internal
Hint!
Entry only possible on selection of thermocouple (TC) in unit function
1
SENSOR TYPE.
Entry of external cold junction value.
Entry: -40.00...85.00 °C (°C, °F, K)
0 °C
Hint!
Entry only possible on selection of an external cold junction compensation
in unit function RJ MODE.
3 Commissioning
®
2000 can be
®
.
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