User guide

Protocol Plus Owner’s Manual OPERATION
Version 2 39
Copyright © 2010 by Despatch Industries.
All rights reserved. No part of the contents of this manual may be reproduced, copied or transmitted in any form or by any
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certain conditions where the center of the oven chamber is not the same temperature as
the control thermocouple. This temperature differential may occur when the oven is not
allowed to soak at a constant temperature for long periods of time, or when the oven is
being used at high temperature. Table 11 shows the menu items available.
5.6.10.3. Access Zone Calibration Page
1. Enter Setup Mode.
2. Press Page until Zone Cal displays.
3. Press Menu.
4. Change each parameter by pressing Menu until the desired parameter is displayed,
and then press ▲ or ▼ to change the value.
5. Press Page to exit the Zone Calibration Page.
O
Use Factory Calibration only when no calibration instrument is
available. Push ▲ to restore factory values.
Table 11. Zone Calibration Page Parameters and Values.
Menu Item
Display
Description
Range
Zone 1
actual
Zone Cal
Zone1Act
Point at which Zone 1 is set
(center of chamber)
-73°C to 760°C (-100°F to
1400°F)
Zone1
displayed
Zone Cal
Zone1Dis
Desired displayed value for Zone
1 setting
-73°C to 760°C (-100°F to
1400°F)
Zone 2
actual
Zone Cal
Zone2Act
Point at which Zone 2 is set
(center of chamber)
-73°C to 760°C (-100°F to
1400°F)
Zone2
displayed
Zone Cal
Zone2Dis
Desired displayed value for Zone
2 setting
-73°C to 760°C (-100°F to
1400°F)
Factory
calibration
15
Zone Cal
FactCal
Restores the factory calibration
values
Ready or Done (push-key)
5.6.10.4. Access Factory Calibration Recovery
Factory Calibration Recovery restores the original factory calibration values. This may be
helpful if the calibration has been lost and a calibration instrument is not readily
available. To use the Factory Calibration Recovery feature only, bypass the Zone 1 and
Zone 2 calibration parameters by pressing Menu.
15
Use only when no calibration instrument is available, push ▲ to restore factory values.