Copyright 2003 Baker Hughes Company.
6 | DPI800/802 Instruction Manual–English
6. Before you disconnect the instrument, isolate and
bleed the system.
Figure
3: Example Configuration - Leak Test
2.5 Switch Test
DPI802/802P 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
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
2.6 Transmitter Calibration
DPI802/802P only. To calibrate a transmitter:
1. Connect the instrument (Figure
6) and, if
necessary, adjust the Set Up (Table
1).
2. Select the applicable calibration task from Select Task
3) and, if necessary, adjust the
Settings (Table
4).
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
P1
MENU
OK
HOLD
ESC
+
-
P1
30 ... g
MENU
OK
5.03
5.88
5.74
0.14
(@16:11:18)
- (@16:11:35)
=
2.76 … /min
Start
Settings
30V MAX
30V MAX
mA
24V
MENU
OK
HOLD
ESC
P1
5.003
30 ... g
MENU
OK
+
-
7.45
6.27
P1
Settings
30V MAX
30V MAX
mA
24V
mA
P1
MENU
OK
HOLD
ESC
P1
0.083
30 ... g
MENU
OK
+
-
+VE
-VE
mA
-
+
0.004
55mA
Settings
Maximum: 30V
30V MAX
30V MAX
mA
24V
mA(24V)
P1
MENU
OK
HOLD
ESC
+
-
+VE
-VE
-
+
P1
0.083
30 ... g
MENU
OK
mA(24V)
0.004
55mA
Settings
Содержание Druck Sensycal DPI800
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