Sentry Sentry 2.0 Betriebsanleitung PDF herunterladen (Seite 2)

2 Ramp-Hold

Introduction

Thank you for purchasing the Sentry micro processor, our most advanced generation of digi

tal temperature controllers. As you read the manual, have your controller in front of you so

that you can try out the keys.

The controller display messages are limited to four characters. For this reason, the messages

appear cryptic: IdLE instead of “Ready to begin,” CPLT instead of “Fired successfully to

completion,” RA1 instead of “Enter rate for first segment.” If at any time you are confused by

these messages, turn to Appendix A: Display Messages on pages 22 - 23.

The front cover is a quick guided tour of the controller. The back cover is a quick guide to

programming, to be used after you have learned the programming in

structions on page 8.

Do not worry if you hear a clicking noise during operation. Mechanical

relays click as they turn the heating elements on and off. This is normal.

ThewarrantyonyourSentrycontrollerdoesnotcoverdamagefrom

overfiring, regardless of the circumstances. It is the operator’s responsi-

bility to make sure the kiln turns off at the end of the firing.

If you purchased the TnF 2 portable controller, you should find a TnF 2

installation instruction sheet in addition to these instructions.

Instructions for multiple-zone kilns are included in this manual on pages 13 - 14. If you are

not sure whether your kiln is multiple-zone, look into the firing chamber. If you see two or

three thermocouple tips, your kiln is multiple-zone. If you see only one thermocouple, skip

multiple-zone instructions.

New features introduced with Sentry software version 18D: The Rate option (page 16), rate

shown in Present Status (page 12), firing cost calculation (page 16),

TCL alarm (page 21), PF1 alarm (page 20), and 2 segments added to

the User 1 program for a total of 20 (page 7). To check the software ver

sion of your Sentry, press the OPTIONS key repeatedly until SOFT ap

pears. Press ENTER. Your controller’s software version will appear.

18D and later versions include the new features.

Once you learn the basic features of the Sentry, you will be able to

control every stage of firing. This offers learning opportunities and

convenience difficult to imagine with a manual-controlled kiln.

Do not worry if

you hear a click-

ing noise during

operation. Me-

chanical relays

clickastheyturn

the heating ele-

ments on and off.

Do not leave the

kiln unattended,

especially near

the expected

shut-off time. Be

there to make

sure the kiln

turns off.

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