Druck DPI 800, Инструкция по эксплуатации

Страница: 23 / 270

Copyright 2003 Baker Hughes Company.
English–DPI 800/802 Instruction Manual | 19
3.1 Clean the Unit
Clean the case with a moist, lint-free cloth and a weak detergent. Do not use solvents or abrasive
materials.
3.2 Replace the Batteries
To replace the batteries, refer to Figure B1. Then re-attach the cover.
Make sure that the time and date are correct. The calibration facility uses the date to give service
and calibration messages.
All the other configuration options stay in memory.
4. Calibration
Note: BHGE can provide a calibration service that is traceable to international standards.
We recommend that you return the instrument to the manufacturer or an approved service agent
for calibration.
If you use an alternative calibration facility, make sure that it uses these standards.
4.1 Before You Start
To do an accurate calibration, you must have:
•
The calibration equipment specified in Table 5.
• A stable temperature environment: 70 ± 2°F (21 ± 1°C)
Before you start the calibration, make sure that the time and date on the instrument are correct
(Table 1).
Selection Sequence:

Select Task (Table 2)

Set Up (Table 1)

Calibration

Table 5: Calibration Equipment
Function Calibration Equipment
Pressure An applicable pressure standard (primary or secondary) with a
total uncertainty of 0.01% reading or better.
mA mA calibrator.
Accuracy: Refer to Table 8.
1
Display: Enter
Calibration PIN
2 3
Menu: Select
Channel
4 5


+



Factory PIN = 4321 (Table 6)
MENU
OK
4 3 2 1
MENU
OK
P1... g
MENU
OK