TESTO AG 400, Инструкция по эксплуатации

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Temperature measurement
Task:
- Repeated temperature measurement
➁
at 30 measuring points with a thermocouple
probe ➀ specially adjusted to a Pt100 precision probe
- Printout with attachable printer ➂
➀ 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)
- Surface correction (Gradient 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 and adjust via PROBE - A
DJUSTMENT
.
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:
OK
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.
Probe 1
Adjust
Probe 1
Working with the barcode
The barcode pen (No. 0554 0460) automates the allocation of measured data to a measuring
location.
If a barcode label is attached on location (produced using Comfort software, testo 400 module)
this can be read in with the barcode pen. The measuring instrument searches for the location in
the list to which these coded barcode numbers are allocated in the instrument memory. The
location is then written in the top right corner of the display.
The barcode pen can be plugged in and out when the instrument is switched on. Attaching the
barcode pen with the holder to the SoftCase (Accessory Part no. 0516.0401) makes handling
easier.
The barcode pen can be attached to the RS-232 socket on the side of the measuring
instrument. An audible signal follows.
If the signal does not sound, repeat the procedure. If the signal still does not sound this is an
indication that the barcode pen is not working properly. Please contact our service department.
After the signal has sounded, the barcode pen then goes into the power-save mode. This is
indicated by the pulsating laser diode.
Activate the barcode pen by holding the tip of the pen on a white surface e.g. the barcode label.
The laser then goes into continuous operation.
Run the pen directly over the barcode sample. Correct transmission is confirmed by an audible
signal. The selected location is then available.
If the barcode number on the label is not in the instrument list i.e. the read in barcode is
unknown to the instrument, a new location is automatically allocated. The PC software then
searches in the PC location data base to find out if this location already exists. If not, it is then
set up.
If an unplanned location (without barcode) has to be measured, a name is set up in the function
box
LOCATION at C
HANGE
- N
EW
L
OCATION
. The instrument generates a provisional number. The
final barcode number is then allocated in the PC software.