[EN] English -
7
K335 Issue 3
Operation - Switch test
DPI 802/802P only. To do tests on a pressure switch:
1. Connect the instrument (Figure 4) and, if necessary,
adjust the
Set Up
(Table 1).
2. Select the applicable switch test from
Select Task
(Table 2/3) and, if necessary, adjust the
Settings
(Table 4). The display shows the switch condition (open
or closed) in the top right-hand corner.
3. If necessary, do a zero correction (Table 4).
4. Slowly apply pressure to the system until the switch
changes condition (open or closed).
5. Slowly release the pressure until the switch changes
condition again. The display shows the pressure values
to open and close the switch.
6. To do the test again, press
ESC
to reset the values.
7. Before you disconnect the instrument, isolate and
bleed the system.
Figure 4:
Example configuration - Switch test
Operation - Transmitter calibration
DPI 802/802P only. To calibrate a transmitter:
1. Connect the instrument (Figure 5 or Figure 6) and, if
necessary, adjust the
Set Up
2. Select the applicable calibration task from
Select Task
(Table 2/3) and, if necessary, adjust the
Settings
3. If necessary, do a zero correction (Table 4).
4. For each calibration point, apply an applicable
pressure and wait for the pressure system to stabilize.
5. Before you disconnect the instrument, isolate and
bleed the system.
Figure 5:
Example configuration - Transmitter calibration
with external loop power
Figure 6:
Example configuration - Transmitter calibration
with internal loop power
Settings
Settings
Maximum: 30V
Settings
