4 Transmitter
36
2.
Transfer the reference analog value measured with the
multimeter into the P2A software (see
Adjusting the analog
output, page
77
) or enter it via the user menu (see Performing
analog adjustment, page 48).
3.
Disconnect connections between the multimeter and the
contacts of the testo 6383 and close the service cover.
4.3.5.2.
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
n-
point adjustment
, page 76).
The n-point adjustment must always be carried out to its full
extent and in good time at all selected measurement points.
✓
A precise pressure sensor (5-times more accurate than the
transmitter, e.g. DPC precision pressure sensor from testo
industrial services) is available.
1.
Connect the positive output of the pressure sensor (
3
) to the
positive pressure connection of the transmitter (
1
) and the
negative output of the pressure sensor (
3
) to the negative
pressure connection of the transmitter (
2
).
2.
Transfer the reference pressure value created with the pressure
sensor into the P2A software (see n-point adjustment, page 76)
or enter it via the user menu (see Performing analog
adjustment, page 48).
3.
Repeat step 2 for all of the measuring points.
4.
Disconnect connections between the pressure sensor and the
pressure connections of the testo 6383.
Summary of Contents for 6383
Page 2: ...2 ...
Page 12: ...4 Transmitter 12 4 1 5 Dimensions ...
Page 39: ...4 Transmitter 39 4 4 4 Overview of the testo 6383 user menu ...
Page 40: ...4 Transmitter 40 ...
Page 87: ...6 Tips and assistance 87 ...
