Omega DRST-UN User Manual page 18

Universal transmitter
Table of Contents

Advertisement

8
Specifications
Sensor error detection limits
Input
CURR
POTM
LIN.R
TEMP
No SE.SH for Cuxx, Pt10, Pt20 and Pt50
Error indications
Test of internal CJC sensor
Checksum test of the configuration in FLASH
Check measurement of analogue output current
Communications test
Check that input signal matches input configuration
Check that saved configuration in
matches device
! Error indications in the display flash once per second. The help text explains the error.
1) The error is reset by switching off and then switching on the supply voltage to the device.
Sensor error detection (SE.BR, SE.SH):
Range
Loop break (4..20 mA)
All, SE.BR on all 3-wire
0...800 Ω
0...10 kΩ
TC
RTD, 2-, 3-, and 4-wire
Readout at hardware error
Error search
DRSL-DISPLAY/
DRST-UN
DRSL-DISPLAY/
Readout
SE.BR
SE.BR
SE.BR
SE.BR
SE.BR
SE.BR
SE.SH
Readout
CJ.ER
temperature outside range
FL.ER
1) No load on the current
AO.ER
output (only S4...20/S20...4
NO.CO
IN.ER
1) Error levels on input
Configuration is not DRST-
TY.ER
18
Limit
<= 3.6 mA; > = 21 mA
> ca. 126 kΩ
> ca. 875 Ω
> ca. 11 kΩ
> ca. 750 kΩ / (1.25 V)
> ca. 15 kΩ
< ca. 15 Ω
Error cause
CJC sensor defect or
Error in FLASH
mA)
Connection error
UN

Advertisement

Table of Contents
loading

Table of Contents