Description Of Unit Functions - Endress+Hauser TMT122 Operating Instructions Manual

Temperature DIN rail transmitter
!
Endress+Hauser
6.2.5

Description of unit functions

The following table contains a listing and description of all unit functions of the HART
that can be used for setting up the temperature DIN rail transmitter.
Note!
Factory default values are shown in bold text.
®
The HART operating module (DXR275/375) display is indicated by the following symbol
Function group: WORKING PARAMETERS
Primary value
• V0H0
7
• (PV)
Int: temperature
• V0H1
Time filter
• V0H2
RJ Mode
• V0H3
Ext. RJ Value
• V0H4
OFFSET
• V0H5
a. Only for Commuwin II operating matrix
Display of actual measured temperature.
Display: 7-digit number with floating decimal point and engineering unit.
(e.g. 199.98 Ohm; -62.36 °C, 407.76 °F)
Display of the actual measured temperature of the internal comparison measurement
point.
!
Note!
Display: 7-digit number with floating decimal point and engineering unit. (e.g. 23.70
a
°C, 71.04 °F)
st
Digital filter selection 1 grade.
Input: 0 to 100 seconds
0 sec.
Selection of internal (Pt100) or external (32 to 176 °F/0 to 80 °C) cold
junction compensation.
Entry: internal; external
internal
!
Note!
Entry only possible on selection of thermocouple (TC) in unit function
1
SENSOR TYPE.
Entry of external cold junction value.
Entry: -40.00 to 185.00 °F (-40.00 to 85.00 °C) (°C, °F, K)
0 °C
!
Note!
Entry only possible on selection of an external cold junction compensation in unit
function RJ MODE.
Entry of zero point correction (Offset).
Entry: -18.00 to 18.00 °F (10.00 to 10.00 °C) (°C, °F, K)
0.00 °C
!
Note!
Entry returns to factory default values when changing sensor type!
6 Commissioning
®
protocol
7
.
21