QUI-1055 Uni-DAAMS Manual 1

UNITY 2

Uni-DAAMS Manual

Version 1.3 (Changes to Section 1.1)

March 2010

1. Introduction.................................................................................................................2

1.1. Installing the DAAMS tube ovens ....................................................................................2

1.2. Swapping between tube types ........................................................................................5

1.3. Changing tube oven o-rings ...........................................................................................6

QUI-1055 Uni-DAAMS Manual 2

1. Introduction

Routine operation of a Uni-DAAMS is identical to a standard UNITY 2, see UNITY 2 operators manual

on the technical CD for instructions. The differences between the 2 instruments concern swapping

tube types (4.5 inch DAAMS tubes only) and the size of o-ring used in the tube oven receivers.

1.1. Installing the DAAMS tube ovens

Switch power off to UNITY 2. Remove

all covers.

Lift the tube receiver arm and remove

any sample tube present.

Remove the 2 screws highlighted.

Disconnect the tube oven heater and

thermocouple connector.

Remove the tube oven assembly.

The oven clamp assembly that seals

onto the rear of the tube needs to be

adjusted for the longer tubes.

Remove the 2 highlighted screws, the

right one first so the plate underneath

can be rotated and retained while the

left screw is removed.

Re-attach the oven clamp using the 2

holes further forward (highlighted in

blue) attaching one screw to the plate

then rotating it for the second screw.

QUI-1055 Uni-DAAMS Manual 3

Install the DAAMS tube oven with the

highlighted spacer block for 6 mm

O.D. DAAMS tubes and without for 10

mm O.D. tubes.

Connect the tube oven heater and

thermocouple connector.

Take care when routing the cables

so they can not become trapped

under the heated valve cover.

Route them inside the 1/16”

stainless steel nut.

Secure the tube oven assembly with

the 2 screws removed earlier.

The o-rings that seal each end of the

tube need to be replaced with U-

COV45 o-rings (supplied). See section

1.3 for more details.

The tube oven cover must also be

replaced with the longer version

(supplied).

Note: If installing an ULTRA to the

UNITY 2 then this cover does not

need to be removed

Remove the black knob and replace

the oven cover.

Place an appropriate sized tube into

the tube oven and check that the tube

is held at the correct height to seal on

the o-rings (both front and rear).

If not then the height of the tube oven

must be adjusted.

Note: Incorrect alignment can lead to

damaged tubes and leaks.

QUI-1055 Uni-DAAMS Manual 4

To adjust the tube oven height,

remove the 2 securing grub screws.

The height can then be adjusted with

the 2 screws on the underside.

Caution: Do not over tighten the

screws as damage can occur to the

heater wiring.

Once adjusted retighten the grub

screws and re-fit the oven. Check the

alignment again and repeat the

adjustment is necessary.

To align the oven clamp assembly

place a tube in the oven and loosen

the 2 screws shown in the step above.

Now close the oven clamp assembly

and gently push to slide the assembly

so it seals the tube into place then

move back 1 mm and, while still

holding it, retighten the 2 screws.

Note: Ensuring there is some slack

means that when the tube heats and

expands it will not crack.

The same procedure can be repeated

on the split tube side if required.

QUI-1055 Uni-DAAMS Manual 5

1.2. Swapping between tube types

The UNITY 2 DAAMS ships correctly

adjusted for 6 mm O.D. DAAMS tubes,

as shown.

To swap to 10 mm O.D. tubes (with 6

mm ends) remove the 2 screws

highlighted.

Lift the tube oven assembly and

remove the aluminium spacing block

highlighted.

Note: Keep the spacing block for

future use.

Re-secure the tube oven assembly

with the 2 screws removed earlier.

QUI-1055 Uni-DAAMS Manual 6

As the 10 mm O.D. tubes are longer

than the 6 mm O.D. tubes the oven

clamp assembly must be adjusted.

To do this place a 10 mm O.D. tube in

the oven and loosen the 2 highlighted

screws.

Now close the oven clamp assembly

and gently push to slide the assembly

so it seals the tube into place then

move back 1 mm and, while still

holding it, retighten the 2 screws.

Note: Ensuring there is some slack

means that when the tube heats and

expands it will not crack.

The same procedure can be repeated

on the split tube side if required.

To convert from 10 mm O.D. tubes to

6 mm O.D. tubes reverse the above

procedure and readjust the oven

clamp assembly.

1.3. Changing tube oven o-rings

UNITY 2 DAAMS requires different size o-

rings U-COV45 (pack 10), supplied in the

shipping kit.

To change the o-rings please follow the

instructions in Section 2.4 of the

Technical support manual on the technical

CD.