Voltcraft K204 Datalogger®Temperature meter, thermometer 309 Manual De Usuario
Los códigos de productos
309
26
d) Data logger, recording of measuring values
The recording of the measuring values is started with the REC button. Every 5s (adju-
stable, recording interval), for example, the measuring values are recorded (T1, T2,
T3 and T4) with time registration. The values are filed at a memory location. You can
see the values in the data logger window of the computer.
Proceed as follows to set the recording interval:
Actuate the button "T1 - T2" at the same time when you turn-on the thermometer
and you will get to the setup "Set". Now actuate the button "MAX MIN" once. After
that, there will appear "Int" for Interval and a flashing minute display. Now set the
desired recording interval in minutes and seconds. The maximum recording interval
is 59 minutes and 59 seconds. The minimum value is limited to "00: 01" (= 1s).
Actuate the "MAX MIN" button once again after completed setting and you will get
back to the current temperature measuring display.
The recording of the measuring values is started with the REC button. Every 5s (adju-
stable, recording interval), for example, the measuring values are recorded (T1, T2,
T3 and T4) with time registration. The values are filed at a memory location. You can
see the values in the data logger window of the computer.
Proceed as follows to set the recording interval:
Actuate the button "T1 - T2" at the same time when you turn-on the thermometer
and you will get to the setup "Set". Now actuate the button "MAX MIN" once. After
that, there will appear "Int" for Interval and a flashing minute display. Now set the
desired recording interval in minutes and seconds. The maximum recording interval
is 59 minutes and 59 seconds. The minimum value is limited to "00: 01" (= 1s).
Actuate the "MAX MIN" button once again after completed setting and you will get
back to the current temperature measuring display.
Note!
Each press of a button is confirmed with a short "Beep" of the installed beeper.
Each press of a button is confirmed with a short "Beep" of the installed beeper.
C3 Jack assignment
The jacks T1 to T4 are so-called unipolar blade contact jacks. You must connect the
K type temperature sensors to these jacks if you want to carry out temperature mea-
surements according to the sensor specifications. Take into account that the blade
contact jacks have different widths.
The jacks T1 to T4 are so-called unipolar blade contact jacks. You must connect the
K type temperature sensors to these jacks if you want to carry out temperature mea-
surements according to the sensor specifications. Take into account that the blade
contact jacks have different widths.
Never try to squeeze the connectors the wrong way (+ and –
mixed up) with force into the jacks. The jacks would be destroyed
definitely and should be replaced.
definitely and should be replaced.
The jack "OUTPUT" is the serial RS-232 interface in 3,5 mm stereo jack format. The
assignment can be defined as follows (connector plan):
assignment can be defined as follows (connector plan):
At the back of the connector there is the ground = GND = reference mass (= refe-
rence potential)
In the centre of the connector there is the contact RX = 5 V high input (= data input)
At the front at the point there is the contact TX = 5 V high output (= data output)
rence potential)
In the centre of the connector there is the contact RX = 5 V high input (= data input)
At the front at the point there is the contact TX = 5 V high output (= data output)
And finally there is the jack DC 9V. You can connect here a power supply unit with
following output data: 9 V direct voltage, if possible, stabilised, with an output cur-
rent of at least 100 mA, a connector outside diameter of 3,5 mm and a connector
inside diameter of 1,35 mm. The polarity: minus "-" inside, plus "+" outside.
following output data: 9 V direct voltage, if possible, stabilised, with an output cur-
rent of at least 100 mA, a connector outside diameter of 3,5 mm and a connector
inside diameter of 1,35 mm. The polarity: minus "-" inside, plus "+" outside.
D Working position
Always operate the digital thermometer 309 so that you can read the liquid-crystal
display (LCD) or that the digital display points upwards.
display (LCD) or that the digital display points upwards.