TESTO 6351, Инструкция по эксплуатации

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4 Transmitter
29
4. Service interface
Adjusting analog output 1
✓
With testo 6351 with current output: Load of max. 500

is
connected to channel 1 (see Plug-in connections for power
supply and channels, page 26)
✓
A precise multimeter (minimum requirement: resolution 6.5
digits, at least 5-times more accurate than the 6351) is
available.
If only a simple multimeter is available, the analog output
must not be adjusted.
✓
The service flap is open.
1.

Connect the inputs of the multimeter with the contacts ( 2 ) and
( 3 ) for channel 1.
2.

Transfer the reference analog value measured with the
multimeter into the P2A software (see 5.3.4.2. Adjusting the
analog output) or enter it via the user menu (see 4.4.6.7.
Performing analog adjustment).
3.

Disconnect connections between the multimeter and the
contacts of the testo 6351 and close the service flap.
4.3.3.2. n-point adjustment
With an n-point adjustment, the parameters at the 3-6
measurement points are adjusted to the reference value. The
reference conditions are obtained by using a precise pressure
sensor that should be 5-times more accurate than the transmitter.
1

Positive pressure connection
2.

Negative pressure connection
3.

Pressure sensor
The number of measuring points is set to 3 by the factory
and can only be changed using the P2A software (see
5.3.4.1.
n-point adjustment ).
The n-point adjustment must always be carried out to its full
extent and in good time at all selected measurement points.