Using Hold; Resetting The Factory Default Settings - Emerson Rosemount 1057 Instruction Manual

Instruction Manual
LIQ-MAN-1057
5.6.2 Procedure
1. If a security code has been programmed, selecting the Calibrate, Hold,
Program or Display top menu items causes the security access screen
to appear.
2. Enter the three-digit security code for the appropriate security level.
3. If the entry is correct, the appropriate menu screen appears. If the entry is incorrect, the Invalid
Code screen appears. The Security Code screen reappears after 2 seconds.
5.7

Using Hold

5.7.1 Purpose
The analyzer output is always proportional to measured value. To prevent improper operation of
systems or pumps that are controlled directly by the current output, place the analyzer in hold
before removing the sensor for calibration and maintenance. Be sure to remove the analyzer from hold
once calibration is complete. During hold, both outputs remain at the last value. Once in hold, all
current outputs remain on Hold indefinitely.
5.7.2 Using the Hold Function
To hold the outputs,
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.
Note: There are no alarm relays with this configuration. Current outputs are included with all
configurations.
3. The Hold screen appears and remains on indefinitely until Hold is disabled.
Figure 5-4 Using Hold
5.8

Resetting the Factory Default Settings

5.8.1 Purpose
This section describes how to restore factory calibration and default values. The process also clears all
fault messages and returns the display to the first Quick Start screen. The Model 1057 offers three
options for resetting factory defaults.
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•
•
Section 5: Programming the Analyzer - Basics
S1: 1.234µS/cm 1.234°C
S2: 12.34pH
S3: 12.34µS/cm 1.234°C
Hold
S1 Hold:
S2 Hold:
S3 Hold:
Reset all settings to factory defaults
Reset sensor calibration data only
Reset output calibration only
Section 5: Programming the Analyzer - Basics
S1: 1.234µS/cm 1.234°C
1.234°C
S2: 12.34pH
S3: 12.34µS/cm 1.234°C
S1 Hold outputs
No
and alarms?
No
No
No
Yes
S1: 1.234µS/cm 1.234°C
S2: 12.34pH
S3: 12.34µS/cm 1.234°C
Security Code
000
1.234°C
April 2017
1.234°C
25