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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
(Table 2 & Table 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.
+
-
ESC
Figure 4: Example Configuration - Switch Test
Copyright 2003 Baker Hughes Company.
6 | DPI800/802 Instruction Manual–English
P1
MENU
P1
OK
30 ... g
MENU
ESC
OK
HOLD
5.88
(@16:11:18)
- (@16:11:35)
5.74
0.14
=
2.76 ... /min
Start
Settings
mA
24V
30V MAX
30V MAX
P1
P1
MENU
OK
30 ... g
MENU
OK
5.003
HOLD
7.45
6.27
Settings
2.6 Transmitter Calibration
DPI802/802P only. To calibrate a transmitter:
1. Connect the instrument (Figure 5 or Figure 6) and, if
necessary, adjust the Set Up (Table 1).
2. Select the applicable calibration task from Select Task
(Table 2 & Table 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.
5.03
+
-
Figure 5: Example Configuration - Transmitter
Calibration with External Loop Power
+
-
Figure 6: Example Configuration - Transmitter
Calibration with Internal Loop Power
Maximum: 30V
+VE
-VE
mA
30V MAX
P1
P1
mA
MENU
OK
30 ... g
MENU
ESC
OK
0.083
HOLD
55mA
0.004
Settings
+VE
-VE
-
mA
30V MAX
P1
P1
mA(24V)
MENU
OK
30 ... g
MENU
ESC
OK
0.083
HOLD
55mA
0.004
Settings
+
-
24V
30V MAX
mA
+
24V
30V MAX
mA(24V)
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