| 159 | | === Software Related Stuff / Activities / Reminders |
| 160 | | |
| 161 | | - Capability to set Waffle mode to ASM in closed-loop (SOUL-AO) |
| 162 | | - Capability to set an offset shape to ASM in closed-loop for NCPA characterization/removal |
| 163 | | |
| 164 | | - Connection b/w scientific camera control electronics to scientific camera workstation in the control room on level 2. |
| 165 | | - access to the server room. support will be needed to install the instrument workstation (1U Dell server) and to install the scientific camera workstation in the control room on level 2 |
| 166 | | |
| 167 | | |
| 168 | | |
| 169 | | 8.4 Installation interfaces |
| 170 | | All the checks to verify the feasibility of the installation procedure of SHARK-NIR have been performed on the CAD model “SHARK Installation Final.stp”. For installation purposes, the requirements to LBTO are: |
| 171 | | |
| 172 | | • Remove the door of the Nystrom LBTI top hatch (SX side). |
| 173 | | • Installation of the rotator work platform at the central bent focal station, SX side. |
| 174 | | • Use of the dome crane, to lower the subsystems of SHARK-NIR (as described in AD6) through the hatch in the UIAP LBTI platform and from the M1 side. |
| 175 | | • Operator to move the crane. |
| 176 | | • General assistance during the mounting phases. |
| 177 | | |
| 178 | | 8.5 Electrical interfaces |
| 179 | | SHARK-NIR electronics design is reported in AD5. |
| 180 | | - Summary of required space in the rack (total space: 13U): |
| 181 | | o The motor control unit dimensions are 483mm (width) x 133,35mm (height) x 525mm (depth) (also indicated as 19‘‘ × 3U × 525 mm) |
| 182 | | o The dimensions of the Lake Shore 336 temperature controller are 435 mm W × 89 mm H (2U) × 368 mm D (17 in × 3.5 in × 14.5 in) |
| 183 | | o Custom realized box: (2U in height) may contain the 2 light sources and their power supply, a motorized linear stage (M-403.2DG from Physik Instrumente), a small optical system consisting of 2 lenses and 1 filter to select the light to inject into the integrating sphere of SHARK-NIR (broadband or multi-narrow bands), the TT camera power supply and the power switches board (relais board) |
| 184 | | o DM electronics is contained in a 19” × 4U |
| 185 | | o WFC BCU housing: 19” × 2U (TBC) |
| 186 | | - Power requirement (total Watt dissipation: 700W): |
| 187 | | o The motor control unit maximum power consumptions is ~350W. |
| 188 | | o The Camera temperature controller maximum power consumption is of the order of ~100W. Its power requirement is 100, 120, 220, 240 VAC, ±10%, 50 or 60 Hz, 250 VA. |
| 189 | | o The C-RED2 camera needs a 12V power supply and a commercial “relais” board controllable through Ethernet, is required, to power the power supply, which has a power dissipation of the order of 10W. |
| 190 | | Custom box: power to be dissipated of the order of 100W |
| 191 | | o DM electronics power consumption is 150W. |
| 192 | | o WFC BCU: 24Vdc (48Vdc is also possible upon request) and the estimated power consumption is ~15W |
| 193 | | The agreed cabinet to allocate the above described electronics is rack 2, referring to Figure 6. The space reserved to SHARK-NIR electronics is the lowest area of the cabinet. |
| 194 | | |
| 195 | | |
| 196 | | Figure 6: the agreed cabinet for SHARK-NIR electronic is #2. |
| 197 | | 8.6 Thermal interfaces |
| 198 | | - Cooling: |
| 199 | | o Daily refill of the cryostat: one LN2 refill per day is required (~10 liters). The camera LN2 hold time is of the order of 28 hours (computed in very conservative conditions, see AD7), giving a reasonable margin on the refilling time. |
| 200 | | o Liquid cooling of the technical camera C-RED 2 from First Light (through LBTO glycol system, described in RD9): |
| 201 | | Max temperature: 35°C |
| 202 | | Min Temperature: dew point |
| 203 | | Pressure: 10 bar max |
| 204 | | Cooling capacity: 100W minimum |
| 205 | | Flow rate: > 0.5 L/min |
| 206 | | Max 50% ethylen glycol aqueous solution ; 50% distilled water or deionized water |
| 207 | | |
| 208 | | 8.7 Other interfaces |
| 209 | | - Air Flow: |
| 210 | | o A clean air flow with a maximum required flux of 0.5 m3/min to keep SHARK-NIR optical bench on a slight over-pressure with respect to the outer environment. |
| 211 | | 8.8 Logistics |
| 212 | | 8.8.1 Connections |
| 213 | | An Ethernet cable should reach the computer rooms located at level 2. |
| 214 | | 8.8.2 Storage |
| 215 | | Space (TBD) for storage should be made available at 3L. |
| | 159 | === Reminders |
| | 160 | - check if all the installation of interfaces is mentioned and in the right places. if LBTO support is needed (crew, crane support, etc.), mention those. |
| | 161 | - make sure if all the support from LBTI and iLOCATOR team are mentioned clearly (related to the installation of electronics in their cabinets, sharing space, access permissions, IP addresses, etc.) |
| | 162 | - need emergency stop buttons in SHARK-NIR? If so, need to integrate them into the LBT control system? |
| | 163 | - check if all the electronics related support and requirements are mentioned. |
| | 164 | - check if all okay for the LN2 fill and glycol/cooling water flow, etc. |