V&P Scientific VP 741ECE-3Z-KIT-96 User manual

V&P Scientific, Inc. 1 Technical Note 455
Technical Note 455
OPERATION MANUAL FOR
VP 741ECE-3Z-KIT-96
Figure 1. Components of VP 741ECE-3Z-KIT-96 (*glass shell vials not included)
Warning:
Avoid attempting to move the 3-Zone heating block
after heating has begun, it can become quite hot
and cause burns if touched.

V&P Scientific, Inc. 2 Technical Note 455
SET-UP
Installing and Sealing Vials within 3-Zone Reaction Block
Figure 2. Named view of components shipped with VP 741ECE-3Z-KIT-96
1. Pre-assembled, blue anodized 3-zone reaction block base can be filled with vials (1mL)
(Figure 3). Reactants, solvent and stir elements can then be added to each vial.
2. Once vials are charged with required components, it is ready to be sealed.
STEP1: Place one VP 416-96-FILM (clear PFA sheet –sold separately) over the vials taking care
to align the center hole of the film and the center hole of the reaction block (red circle).
STEP2: Place a single VP 416-96-MAT (sold separately) over the PFA film. A good technique is
to use fingertips of one hand to hold the PFA film in place while your other hand places the
white mat directly over the film ensuring that both center holes align.
Watlow Controller
3-Zone Heating
Block
Heating Block Cable
3-Zone Reaction
Block Assembly

V&P Scientific, Inc. 3 Technical Note 455
STEP 3: The aluminum lid can then be placed over VP 416-96-MAT taking care to align center
hole with the others.
STEP 4: Threaded rod of tightening puck can then be passed through center holes and screwed
down. Please note that V&P recommends tightening NO MORE THAN 1/3 turn PAST
HAND TIGHT. To tighten further is unnecessary and may strip the threads.
As an illustration, note starting position of tightening puck (at “12 o’clock” position)
followed by fully tightened position (at “5 o’clock” position).
3. Following the preceding steps, you will arrive at the fully sealed reaction block, shown in
Figure 5, ready for heating.
Puck
Lid
PFA Film
and Rubber
mat
Tightening puck engaged
but not tightened
Tightening puck fully
tightened
Figure 3. 3-Zone reaction block base
(glass vials sold separately)
Figure 4. 3-Zone reaction block
base, vials, PFA film, mat, lid and
tightening puck

V&P Scientific, Inc. 4 Technical Note 455
Figure 5. Assembled 3-Zone Reaction Block
OPERATION
Operation of Watlow Touchscreen 3-Zone Heating Block
1. Looking at the back of the Watlow controller, connect the individual socket head connectors
to their respective ports. Note that each are labelled, “ZONE 1, ZONE 2, ZONE 3”(see Figure
6)
2. Plug power cable into the port at the back of the control box as well as into the wall to supply
power to the unit. Flip the power switch on and allow the Watlow touchscreen (see Figure
7) to boot up (may take up to 2 minutes to appear).
Figure 6. Back panel of Controller Box Figure 7. Touchscreen interface

V&P Scientific, Inc. 5 Technical Note 455
3. Note that location of each temperature zone is indicated on the side of the red anodized
heating block as shown in Figure 8.
Figure 8. Side view of heating block showing 3 temperature zones

V&P Scientific, Inc. 6 Technical Note 455
4. NOTE: V&P Recommends a maximum 20 degC difference in temperature between
each zone. A good starting set of temperatures is 60/80/100 degC.
a. Lowest temperature that can accurately be maintained is, ~40-50 degC.
5. From the touchscreen interface, tap the “SP” button to bring up the “Set Point”
temperature screen as seen in Figure 9. Input desired temperature by hitting “Enter”
button.
Figure 9. Setting desired temperature Figure 10. Sealed 3-Zone reaction
block seated within 3-Zone heating block
6. Repeat this temperature input process for all 3 zones. Note that heating begins as
soon as you hit “Enter”.
Note Insulative Slices Line Up –
Reaction Block & Heating Block

V&P Scientific, Inc. 7 Technical Note 455
7. Place the sealed 3-Zone reaction block into the deep well pocket of the 3-Zone heating
block.
Warning: Avoid attempting to move the 3-Zone heating block after heating has
begun, it can become quite hot and cause burns if touched.
8. Once reaction time is complete, set the temperatures of each zone to “0 degC” to turn
the heating off. Unit does not need to be powered down, but you may do so if desired.

V&P Scientific, Inc. 8 Technical Note 455
Modification of Watlow Calibration Offsets (if Required)
1. The Watlow controller settings and internal calibration offsets are set at the time of
manufacture and should give accurate set temperature/internal reaction temperature
correlation (i.e., desired set temperature = 50degC, then internal reaction temperature is also
= 50degC).
2. Should you wish to access calibration offsets menu to adjust the settings, follow these steps:
a. Touch the menu button on the front of the Watlow interface.
Figure 11. Watlow interface, Main Menu button pointed out
b. At “Main Menu” screen, select “Operations”. c. At “Operations Page” screen, select
“Inputs”.

V&P Scientific, Inc. 9 Technical Note 455
d. At “Inputs” screen, select Zone to be modified. e. Modify Calibration Offset as desired.
f. Once Calibration Offset is changed, select “Done” then “Home Screen” buttons.
3. You may need to repeat this process of adjusting Calibration Offset and testing internal
temperature of reaction vials to check for accurate correlation between “Set Temp” and
internal vial temperature.

V&P Scientific, Inc. 10 Technical Note 455
Product Maintenance
GENERAL PRODUCT CARE
If cleaning is desired, wipe down exterior of block with wet paper towel and allowed to dry
WARRANTY
V&P Scientific, Inc. warrants this product to be free from defects in material and workmanship
when used under normal laboratory conditions for one year. This warranty begins on the date
of delivery from V&P Scientific.
In the event this product fails under normal laboratory conditions within the specified period
of time because of a defect in material or workmanship, V&P Scientific will, at its option, repair
or replace the product. Damage to the product caused by user negligence is not covered.
Please keep the special shipping carton in case the unit needs to be shipped back to V&P
Scientific. Please contact V&P Scientific at the above address for return authorization and
shipping instructions.
This warranty is made in lieu of other warranties expressed or implied including the warranties
of merchantability and fitness for a particular purpose. V&P Scientific shall not be liable for loss
or damages arising from the use of these products nor for consequential damages of any kind.