Temperature Measurement - TESTO 400 Instruction Manual

Task:
- Repeated temperature measurement
specially adjusted to a Pt100 precision probe
- Printout with attachable printer
Adjusting ...
a) a surface temperature probe e.g. 0614.9993 to a
precision Pt100 immersion probe, e.g. 0628.0015:
The temperature probe marked with * in the Ordering data has its own integrated memory
(EEPROM). Data on probes is saved here:
Main menu Probe - Adjustment (OFFSET correction)
Connect both probes to the hand-held instrument. Connect the probe which is to be adjusted -
only an EEPROM probe (See Ordering data: marked with *) can be used - to socket 1 on the left.
Switch on instrument. Switch to main menu with
Immerse both probes in a bath at the future working temperature (at least 10 cm deep) and wait for
a stable temperature display in both probes. Start adjustment in the menu
(See display:"Adjust"). The differential temperature of the surface temperature probe to the Pt100
precision probe is stored here.
b) a probe with EEPROM using a separate precision measuring instrument:
Connect the probe to be adjusted to the left socket 1, switch on the instrument and confirm
PROBE-A
DJUST in the main menu with
The measured actual temperature is on line 1. The required temperature is specified by the
reference instrument.
Set the required temperature on line 2 using the cursor buttons.
The future displayed temperature values of this probe will be adjusted accordingly (=offset
correction). This offset, compared with the factory calibration, appears in the display when the
instrument is switched on:
Probe 1 Probe 1
Adjust
- Surface correction (Gradient correction).
OK
Example:
Set required value: 25.0 °C
Offset correction: 1.22
Required value + offset correction = measured value
following factory calibration = current value of probe: 26.22
°C.

Temperature measurement

at 30 measuring points with a thermocouple probe
OK
and adjust via PROBE - A
.
19
.
DJUSTMENT