N-Point Adjustment (Pressure) - TESTO 6381 Instruction Manual

✓ The service flap is open.
1. Connect the inputs of the multimeter with the contacts (2) and
(3) for channel 1 or with contacts (7) and (8) for channel 2.
2. Transfer the reference analog value measured with the
multimeter into the P2A software (see volume 2, 7.3.4.4.
Adjusting the analog output) or enter it via the user menu (see
4.4.6.9. Performing the 2-Points-Adjustment for 20% RH and 80
% RH).
3. Disconnect connections between the multimeter and the
contacts of the testo 6381 and close the service flap.
Adjusting analog output 3 (optional)
1. Open transmitter (see 4.3.3. Opening the instrument).
2. Connect measuring cable to the terminals of the third analog
output and guide through the cable coupling and out of the
transmitter.
3. Reassemble upper part of transmitter (see 4.3.3.7. Closing the
instrument).
4. Connect cable ends to the inputs of the multimeter.
5. Transfer the reference analog value measured with the
multimeter into the P2A software (see volume 2, 7.3.4.4.
Adjusting the analog output) or enter it via the user menu (see
4.4.6.9. Performing the 2-Points-Adjustment for 20% RH and 80
% RH).
6. Remove the upper part of the transmitter, detach the cable
connections for the adjustment of the 3rd analog output and
reassemble the transmitter.
4.3.4.11.

n-point adjustment (pressure)

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.
If the optional third analog output is to be adjusted, a cable
connection to measure the analog value must be installed.
Do this by proceeding as follows:
4 Transmitter
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