Emerson PN 51-1055pHC/rev.K instruction manual Security, Using Hold

MODEL SOLU COMP II	SECTION 4.0
	DISPLAY AND OPERATION

4.4 SECURITY

4.4.1 How the Security Code Works

Use the security code to prevent accidental or unwanted changes to program settings, displays, and calibration.

Enter Security

Code000

Invalid Code

1.If a security code has been programmed, pressing MENU causes the security screen to appear.

2.Enter the three-digit security code.

3.If the entry is correct, the main menu screen appears. If the entry is incor- rect, the Invalid Code screen appears. The Enter Security Code screen reappears after 2 seconds.

4.4.2 Bypassing the Security Code

Enter 555. The main menu will open.

4.4.3 Setting a Security Code

See Section 5.7.

4.5 USING HOLD

4.5.1 Purpose

The analyzer output is always proportional to measured pH or conductivity. To prevent unwanted alarms and improper operation of control systems or dosing pumps, place the analyzer in hold before removing the sensor for calibration and maintenance. Be sure to remove the analyzer from hold once Hold calibration is complete. During hold, both outputs remain at the last value. Once in hold, the analyzer remains there indefinitely. While in hold, the screen

shown to the left appears periodically.

4.5.2 Using the Hold Function

To choose a menu item, move the cursor to the item and press ENTER.

To store a number or setting, press ENTER.

CalibrateHold

ProgramDisplay

Hold Outputs and
Alarms?	Yes	No

1.Press MENU. The main menu screen appears. Choose Hold.

2.The Hold Outputs and Alarms ? screen appears. Choose Yes to place the analyzer in hold. Choose No to take the analyzer out of hold.

3.The main display screen will appear.

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