Appendix A: Julabo Circulator (He Style); Introduction; Setting Up The Ccfc; Using The Membrane Keypad - TA Instruments DHR Series Getting Started Manual

Appendix A:

Introduction

This appendix covers those aspects of the operation of the Julabo Computer Controlled Fluid Circulator
(CCFC) with HE style head, relevant to the Asphalt Submersion Cell. The head incorporates a VFD (vac-
uum fluorescent display), and membrane keypad through which parameters settings must be entered.

Setting Up the CCFC

1 Fill the CCFC to the level recommended by manufacturer. For the standard testing temperatures, use
deionized water as the circulating fluid. Below 5°C it may be necessary to use a glycol/water mixture.
A small amount of algaecide can be added at this point (TA part number 952377.901).
WARNING: Use caution when working with the CCFC at high temperatures. Read
and study the safety information contained in the manufacturers operating man-
ual thoroughly prior to use.
AVERTISSEMENT: Soyez prudent lorsque vous travaillez avec du CCFC à des
températures élevées. Lisez et étudiez parfaitement les consignes de sécurité
contenues dans le manuel d'utilisation du fabricant avant d'utiliser l'instrument.
2 Set up the connections between the rheometer, the Submersion Cell, and CCFC.
3 Switch on the rheometer and the CCFC head and pump. The CCFC will perform a self-test at this point.
When this test has finished, leave the head switched on, but switch off the pump and proceed to the next
section.

Using the Membrane Keypad

The following list describes the functioning of the keypad shown below:
• MENU Key: Used to enter the various menus.
• ENTER Key: Used to save entered parameters.
• ESC Key: Used to proceed to the next menu.
• UP/DOWN Arrow Keys: Used to select values.
• LEFT/RIGHT Arrow Keys: Used to change the value of a number. Press the LEFT or RIGHT arrow
keys until the desired digit is activated then press the UP or DOWN arrow keys until the desired num-
ber is reached.
DHR/AR Series Asphalt Submersion Cell Getting Started Guide
Julabo Circulator (HE Style)
Page 19