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How to Reset and Program Thermocouple Type (or RTD) How to Reset and Program Thermocouple Type (or RTD)
A DPS3301-TC that is calibrated for a J, K, T, or E type thermocouple or an RTD model may be
programmed for a specific thermocouple, or RTD (385/392) type, by going into SETUP mode (Look under
‘SETUP’). Alternately, a thermocouple/RTD may be selected by turning
On
A DPS3301-TC that is calibrated for a J, K, T, or E type thermocouple or an RTD model may be
programmed for a specific thermocouple, or RTD (385/392) type, by going into SETUP mode (Look under
‘SETUP’). Alternately, a thermocouple/RTD may be selected by turning
On power to the unit while holding
in the appropriate key (see Figure 1). This procedure also clears the memory and programs factory defalult
values for limits, rate timebase etc. Therefore, after performing Power-up reset, various parameters such as
limits, rate time base etc., must be re-programmed to a desired value. However, if done in SETUP mode, no
programmed parameters such as limits, Timers etc. are erased from the memory.
It is recommended that
thermocouple (RTD) selection be done in SETUP. Power-up reset should be performed if it is suspected that
program memory may have been corrupted due to power surge, noise on electrical lines etc.
FIGURE 1. Thermocouple/RTD Selection Keys
KEY Input Type Selected
HI/LO J (R, S or B , RTD 385)
Thermistor
C/F K (RTD 392)
ALARM T
TIMER E
RESET Memory cleared – no
factory default values
. programmed.
NOTE: All keys, except RESET, clear
memory and program necessary factory
default values. RESET key clears memory
only and programs no default values.
However, previous thermocouple type is
retained.
DISPLAY MODES
E t/c
Memory Clear only T t/c
K t/c, RTD392,
Thermisto
r
J (R, S or B) t/c,
RTD385
The DPS3301 can be programmed to display in any one of the following modes:
Mode Display Description
PROCESS PrOCESS
Displays process value.
SETPOINT DEVIATION SP. DEVN
Displays setpoint deviaition.
INSTANTANEOUS RATE In. rAtE
Displays Instantaneous rate value.
PROCESS HIGH Pr. HIGH Displays process’ highest reading
PROCESS LOW Pr. LO Displays process’ lowest reading
ELAPSED TIME ELPSd. T Displays elapsed time.
TIMER 1 COUNT DOWN tr1. Cnt Display Timer 1 count down value
TIMER 2 COUNT DOWN tr1. Cnt Display Timer 2 count down value
SCAN SCAn Scans through all the above parameters