Procedures: Rtd (Ohms) Input; Procedures: Rtd (Ohms) Output; Procedures: Tc (Mv) Input/Output; Procedures: Idos Umm - Baker Hughes Druck DPI 880 Manual Del Usuario

calibration (+FS). The display shows the applicable
instructions to complete the calibration.
4. To make sure that the calibration is correct, select the
applicable T1 input task (Table 2).
5. Make sure that the DPI 880 gives a probe temperature
that agrees with the temperature on the digital
thermometer ±0.2°F (0.1°C).

Procedures: RTD (Ohms) input

1. Let the equipment get to a stable temperature (minimum:
5 minutes since the last power on).
2. Use the calibration menu (Table 9) to do a two-point
calibration for each range.
• Range: 0-399.9
a. Nominal zero ohms: Make a 4 wire connection to the
0 resistor (Figure 7).
b. Nominal positive full-scale ohms: Make a 4 wire
connection to the 400 resistor (Figure 7).
• Range: 400-4k
a. Nominal zero ohms: Make a 4 wire connection to the
400 resistor (Figure 7).
b. Nominal positive full-scale ohms: Make a 4 wire
connection to the 4k resistor (Figure 7).
The display shows the applicable instructions to calibrate
each range.
3. To make sure that the calibration is correct, select the
applicable ohms input task (Table 2).
4. Make a 4 wire connection to the applicable standard
resistor (Table 18) and measure the value (Figure 7).
5. Make sure that the error is in the specified limits
(Table 18).
Table 18: RTD (Ohms) input error limits
Standard Resistor
Resistora error
() ()
0 (Short circuit) -
100 0.008
200 0.013
300 0.018
400 0.007
1k 0.042
2k 0.052
4k 0.072
a Or an equivalent resistance simulator

Procedures: RTD (Ohms) output

1. Connect the instrument to the calibration equipment
(Figure 8).
2. Let the equipment get to a stable temperature (minimum:
5 minutes since the last power on).
3. Use the calibration menu (Table 9) to do a two-point
calibration for each range.
• Range: 0-399.9
• Range: 400-1999.9
• Range: 2k-4k
The display shows the applicable instructions to calibrate
each range.
4. To make sure that the calibration is correct, select the
applicable ohms output task (Table 2).
5. Supply the specified values (Table 19). Make sure that
the error is in the specified limits.
Table 19: RTD (Ohms) output error limits
Ohms Excitation
() (mA)a
0 0.50 to 3.0
K0405 Revision B
Permitted
DPI 880 error
()
0.05
0.05
0.05
0.05
0.05
0.25
0.25
0.50
Calibrator Permitted
error DPI 880 error
() ()
0.003 0.05
100 0.50 to 3.0
200 0.50 to 3.0
300 0.50 to 3.0
400 0.50 to 3.0
1000 0.05 to 0.8
2000 0.05 to 0.4
4000 0.05 to 0.3
a
Refer to "Specification"

Procedures: TC (mV) input/output

1. Connect the instrument to the calibration equipment:
• TC (mV) input = Figure 9b
• TC (mV) output = Figure 9d
2. Let the equipment get to a stable temperature
(minimum: 5 minutes since the last power on).
3. Use the calibration menu (Table 9) to do the calibration:
• TC (mV) input = three-point calibration
(-FS, Zero and +FS).
• TC (mV) output = two-point calibration (Zero and +FS).
The display shows the applicable instructions to complete
the calibration.
4. To make sure that the calibration is correct, select the
applicable TC (mV) input or output task (Table 2) and
apply the necessary values:
• TC (mV) input: -10, 0 (short circuit)
Then TC (mV): 25, 50, 75
• TC (mV) output: -10, 0, 25, 50, 75
5. Make sure that the error is in the specified limits
(Table 20).
Table 20: TC (mV) input/output error limits
Input Calibrator error
or output TC (mV)
TC (mV) mV
-10 0.000 5 0.000 18
0 - 0.000 05
25 0.000 6 0.000 36
50 0.000 8 0.000 68
75 0.001 0 0.000 99

Procedures: IDOS UMM

Refer to the user manual for the IDOS UMM.
When the calibration is complete, the instrument
automatically sets a new calibration date in the UMM.
0.004 0.06
0.005 0.06
0.007 0.07
0.008 0.07
0.015 0.30
0.026 0.40
0.049 0.80
Permitted DPI 880 error
TC (mV)
mV mV mV
0.008 0.008
0.006 0.006
0.010 0.010
0.014 0.014
0.018 0.018
[EN] English -
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