Baker Hughes Druck DPI880 Manual De Instrucciones página 13

V
Hz
mA +
3W
1
2
1
MENU
ESC
OK K
HOLD
Edit
c) °C or °F (Output)
Figure 9: Example Configuration - To
Measure/Simulate the Temperature (°C/°F) or mV
Values of a TC
2.9 Transmitter Calibration
To calibrate a transmitter:
1. Connect the instrument (Figure 10 & Figure 11) and, if
necessary, adjust the Set Up (Table 1).
2. Select the applicable calibration task from the task
selection menu (Table 2 & Table 3) and, if necessary,
adjust the Settings (Table 4 & Table 5).
3. Supply the output values to the system (Table 7).
+
100
, , ,
0
-
V RTD
COM
Hz
mA + mA -
TC
3W 4W
30V MAX
1
2
1
MENU
ESC
OK
HOLD
Figure 10: Example Configuration - Transmitter
Calibration with External Loop Power
, 100 , ,
0
+
-
+VE
-VE
RTD
COM
mA -
TC
4W
30V MAX
Settings
mV
MENU MENU
OK OK
CJ=25.4
34.7 0.373
1372°C
Settings Edit Settings
d) mV (Output)
Maximum: 30V
+VE
-VE
-mA (24Vo)+
mA Vin
24Vo
30V MAX
2
MENU
OK
5.0V
40.400
0.083
Edit Settings
100
,
+
-
V RTD
Hz
mA +
TC
3W
30V MAX
1
2
75mV
MENU
ESC
OK
HOLD
Figure 11: Example Configuration - Transmitter
Calibration with Internal Loop Power
2.10 Switch Test
To do tests on a switch:
1. Connect the instrument (Figure 12) and, if necessary,
adjust the Set Up (Table 1).
2. Select the applicable switch test from the task selection
menu (Table 2 & Table 3) and, if necessary, adjust the
Settings (Table 5). The display shows the switch
condition (open or closed) in the top right-hand corner.
3. Supply the output values to the system (Table 7).
i. Example - "Nudge" output:
+
a. Use Edit () to set a value less than the
switch value.
-
b. Use the  buttons to change the value in
small increments.
ii. Example - "Ramp" output:
a. Set "High" and "Low" values that are applicable
to the switch value (Table 6). Then, to get an
accurate switch value, set a long "Travel"
period.
b. Use Start/Stop () to start and stop the
"Ramp" cycle.
4. If necessary, supply the output values in the opposite
direction until the switch changes condition again.
The display shows the applicable values to open and
close the switch.
50kHz
5. To do the test again, press ESC to reset the values.
55mA
+
+VE
, ,
0
-VE
-
COM
mA -
4W
1
Copyright 2005 Baker Hughes Company.
English–DPI880 Instruction Manual | 9
-
+
-mA (24Vo)+
Vin
mA
24Vo
30V MAX
2
MENU
OK
5.0V
40.400
50kHz
0.083
55mA
Edit Settings