Yokogawa GD40 Gas Density Detector - Manual (Page 49)

<3. Operation>
3-6
IM 11T3E1-01E
4. Entering a Password
If you need, a password can be entered to proceed into the operation, setting or service level.
When you attempt to enter that level, a password-entry message (password prompt) like one
shown in Figure 3.6-(1) appears. The required password is “XXX”. (See section “4.2 Setting
Lists”.)
When password is selected, pressing the [MODE]
key, then the [*] key, changes the display to
look like this.
Type the password (XXX) and then press the
[ENT] key. If you type a wrong password,
you cannot enter the level.
(1) (2)
F0306.ai
Figure 3.6 Password Prompt and the Reading of a Password Typed
3.1.5 Checking the Setting Parameters
Set up the relevant parameters, display unit, analog output and others, to meet individual operat-
ing requirements. The GD402 gas density meter is designed to change into density, calorific me-
ter and hydrogen purity meter according to application. (Select “50” in Service code, and change
parameter you need.)
3.1.6 Calibrating the Analyzer for Correct Readings
For details on the calibration of the analyzer for correct readings, see Chapter 8, 9 or 10.