Dräger 8000 IC Function Description
Hide thumbs
Also See for 8000 IC:
- Operating instructions manual (80 pages) ,
- Instructions for use manual (60 pages) ,
- Manual (24 pages)
Table of Contents
Advertisement
Function Description Incubator 8000 IC / SC / NC
Table of contents:
1
General .............................................................................................................................3
1.1 Description of the Incubator 8000 IC / SC / NC ............................................................3
1.2 Safety Features.............................................................................................................5
1.3 Alarms ...........................................................................................................................5
1.3.1
1.3.2
1.3.3
1.3.4
2
Functional description of Incubator 8000 IC / SC / NC .....................................................7
2.1 Description of component block diagram ......................................................................7
2.1.1
2.1.2
2.1.3
2.1.4
2.1.5
2.1.6
2.1.7
2.1.8
2.2. Description of block diagram of electronic functioning................................................15
2.2.1
2.2.2
2.3 Description of safety facilities......................................................................................26
2.3.1
2.3.2
3
Detailed description of Incubator 8000 IC / SC / NC sub-assemblies ............................30
3.1 Heating unit .................................................................................................................30
3.1.1
3.2 Electronics Module......................................................................................................32
3.2.1
3.2.2
3.2.3
6141.22X
Incubator 8000 IC/SC/NC
Function Description
09.99
Page 1 of 49
5
6
6
7
7
10
13
13
14
15
15
15
15
20
26
28
31
32
32
33
Advertisement
Table of Contents
Related Manuals for Dräger 8000 IC
Summary of Contents for Dräger 8000 IC
-
Page 1: Table Of Contents
Function Description Incubator 8000 IC / SC / NC Table of contents: General ..........................3 1.1 Description of the Incubator 8000 IC / SC / NC ............3 1.2 Safety Features......................5 1.3 Alarms ...........................5 1.3.1 Alarm for set value deviations and water shortage 1.3.2... - Page 2 Power Pack PCB 3.2.8 Motherboard PCB 3.2.9 Switch PCB 3.2.10 +5 V voltage regulator 3.3 Air temperature sensor Inc. 8000 SC / IC ..............46 3.4 Climate sensor housing Inc. 8000 IC ................47 3.4.1 Intended use 3.4.2 Arrangement 3.4.3 Detailed description 3.5 Skin temperature sensor .....................49...
-
Page 3: General
General the Incubator 8000 IC / SC / NC Descri n of A special airflow system has been developed for the Incubator 8000 series. This system routes heated air between the double walls on the entire front (hinged front door), over the roof of the canopy and then draws it down again between the double walls at the rear by means of an extraction system. - Page 4 The humidity control of the Incubator 8000 IC permits a required humidity value to be pre- selected and maintained. The water required for this is supplied from sterile water bottles.
-
Page 5: Safety Features
The actual value display of the relevant control module flashes. The specific alarm LED flashes. Intermittent alarm tone sounds (can be suppressed for 10 min.). The central alarm LED flashes (if available). Function Description 6141.22X Incubator 8000 IC/SC/NC 09.99 Page 5 of 49... -
Page 6: Sensor Alarms And Fan Failure Alarm
Continuous alarm tone (non-suppressible) if the module is switched on. The functions of the other modules which are operating correctly are retained. The operator can carry on using the incubator after the faulty module has been switched off. Function Description 6141.22X Incubator 8000 IC/SC/NC 09.99 Page 6 of 49... -
Page 7: Total Shutdown
If the incubator shows the "Inop" signal after it is switched on again, it is inoperative. It must not be used and must be clearly marked faulty. Functional description of Incubator 8000 IC / SC / NC Description of component block diagram... -
Page 10: Component Block Diagram 8000 Sc / Nc
2.1.2 Component block diagram 8000 SC / NC Function Description 6141.22X Incubator 8000 IC/SC/NC 09.99 Page 10 of 49... -
Page 13: Fresh Air Intake And O2 Supply
Through a fresh air filter 84 02 926 at the back of the Incubator 30 L/min fresh air are taken in by dosing via the running impeller. 2.1.3.2 O2 supply Incubator 8000 IC: There are two possibilities for 02 supply in Incubator 8000 IC: a. External 02-supply b. Oxygen control Incubator 8000 SC / NC: With Incubator 8000 SC / NC only external 02-supply (a.) is possible. -
Page 14: Electronics Module
PCB Analog a. reading in of measured values of climate sensor housing (Inc. 8000 IC) or of air temperature sensor (Inc. 8000 SC / NC) b. reading in of climate sensor housing position (Inc. 8000 IC) c. -
Page 15: Climate Sensor Housing (Inc. 8000 Ic)
The Electro-motor is equipped with an automatically resettable over- temperature switch. 2.2. Description of block diagram of electronic functioning 2.2.1 Incubator 8000 IC / SC / NC block diagrams Function Description 6141.22X Incubator 8000 IC/SC/NC 09.99 Page 15 of 49... -
Page 20: Detailed Description Of Block Diagram
On the Analog PCB the relay (K2) or by FET transistors on newer devices as of 1996 substitutes for a short time the over-temperature sensor with a fixed resistor simulating a temperature higher than 40.0 °C. Function Description 6141.22X Incubator 8000 IC/SC/NC 09.99 Page 20 of 49... - Page 21 Software version 10.n and 20.n: The plug of the skin temperature probe is coded in order to indicate that the sensor is plugged in. A 5 V pull up resistor is connected to ground by a Function Description 6141.22X Incubator 8000 IC/SC/NC 09.99 Page 21 of 49...
- Page 22 (18)and the oxygen valve (3) are switched off and the oxygen sensor alarm is activated. 2.2.2.12 Detection of sensor head position (43), Inc. 8000 IC only The position of the sensor housing at the hinge is sensed by two micro switches installed in the sensor housing and is evaluated via a PIA on the Motherboard PCB.
- Page 23 The function of this fan wheel monitoring circuit is tested by the microprocessor via PIA2. The microprocessor can purposely suppress the fan wheel pulses in-order to generate a fan wheel rpm failure signal. Function Description 6141.22X Incubator 8000 IC/SC/NC 09.99 Page 23 of 49...
- Page 24 (13) and (14). The driver signal for the humidifier is read back by PIA2. The valve (Inc. 8000 IC only) is controlled by PIA1 and driven by a power transistor on the Motherboard PCB. The driver signal is supervised by the second PIA.
- Page 25 In case of a power failure the beeper is activated independently of the microprocessor and powered by the battery. Function Description 6141.22X Incubator 8000 IC/SC/NC 09.99 Page 25 of 49...
-
Page 26: Description Of Safety Facilities
The over-temperature alarm is stored by means of a bipolar relay and must be reset with the reset button after termination of the over-temperature status. All other alarms are reset automatically once the cause of the fault has been eliminated. Function Description 6141.22X Incubator 8000 IC/SC/NC 09.99 Page 26 of 49... - Page 27 With respect to the sensor alarms for oxygen concentration (Inc. 8000 IC only) and humidity (Inc. 8000 IC only), the alarm is reset following switch-off of the module concerned and further operation can be continued with the other functions. The same applies to the skin temperature module, however, the defective sensor must first be removed in this case.
-
Page 28: Software
Continuous horn tone (cannot be deactivated). The equipment is not serviceable. Additional for Incubator 8000 IC: If after switch-off of the 02 module within a few minutes an increase of the 02 concentration by more than 3 Vol. by. % is detected this will also lead to an INOP message: INOP-LED lights. - Page 29 If, because of a hardware or software failure, the program flow is affected, the logical program sequence is changed and will be detected as being incorrect by the logical program tracing scheme. Function Description 6141.22X Incubator 8000 IC/SC/NC 09.99 Page 29 of 49...
-
Page 30: Detailed Description Of Incubator 8000 Ic / Sc / Nc Sub-Assemblies
2.3.2.9 10 Minute Test The 10 minute test is implemented to test every 10 minutes all testable hardware safety functions. Detailed description of Incubator 8000 IC / SC / NC sub-assemblies Heating unit Electronics module: a. Keyboard b. PCB Display Air Temperature c. -
Page 31: Detailed Description Of Function Blocks Of Unit Pcb
Relay K2 is a safety relay to cut off the mains voltage supply of the air and humidifier heating. 3.1.1.3 Cutoff relay K3 for 02 valves (Inc. 8000 IC only) Relay K3 is a safety relay to cut off the supply voltage of the 02 valves. -
Page 32: Electronics Module
The electronics modules are a sub-assembly to control the air temperature, the 02 concentration (Inc. 8000 IC only) and the humidity. The skin temperature module also facilitates control of the air temperature in dependence of a child's skin temperature. The... -
Page 33: Display Pcb
3.2.3.1 Use of Display PCB On units with software version 10.n and 20.n: Skin Humidity (Inc. 8000 IC only) On units with software version 11.n and 21.n: Humidity (Inc. 8000 IC only) Function Description 6141.22X Incubator 8000 IC/SC/NC 09.99... -
Page 34: Display Humidity Pcb (Inc. 8000 Sc / Nc Only)
Block 2 contains the entire data and program storage (up to 64 kByte RAM/EPROM). With ACIA in block 3 a serial interface is provided but is not fitted for Incubator 8000 series. Function Description 6141.22X Incubator 8000 IC/SC/NC 09.99 Page 34 of 49... -
Page 35: Analog Pcb
With skin temperature measurement (1 channel). For software version 10.n and 20.n only. 82 90 680 With skin temperature measurement (2 channels for Thermomonitoring). For software version 11.n and 21.n only. Function Description 6141.22X Incubator 8000 IC/SC/NC 09.99 Page 35 of 49... - Page 36 3.2.6.2 Block diagram Function Description 6141.22X Incubator 8000 IC/SC/NC 09.99 Page 36 of 49...
- Page 37 40.0 OC. Independent of the microprocessor system in the event of over-temperature the heating is switched off via this comparator and thus the device is put Function Description 6141.22X Incubator 8000 IC/SC/NC 09.99 Page 37 of 49...
- Page 38 0.003 °C it is assumed that the reference resistor is measured instead of the skin temperature sensor. A sensor failure alarm (Err) will then be generated. Function Description 6141.22X Incubator 8000 IC/SC/NC 09.99 Page 38 of 49...
- Page 39 (18)and the oxygen valve (3) are switched off and the oxygen sensor alarm is activated. Detection of sensor head position, Inc. 8000 IC only The position of the sensor housing at the hinge is sensed by two micro switches installed in the sensor housing and is evaluated via a PIA on the Motherboard PCB.
-
Page 40: Power Pack Pcb
Humidity sensor, Inc. 8000 IC only The output voltage of the humidity sensor is switched to the ADC via a voltage divider (34). Resolution: 0 to 100 % relative humidity = 0.55 to 4.31 V Reference for ADC The reference voltage for the ADC is based on the +15 V and the -15 V supply voltage for the analog components. - Page 41 In case of power fail the beeper is fed by the storage battery via the closed mains switch auxiliary contacts. Via pin 23 a/c an external LED is switched on. Function Description 6141.22X Incubator 8000 IC/SC/NC 09.99 Page 41 of 49...
-
Page 42: Motherboard Pcb
Assignment of PIA Ports D1 (E = input, A = output) Port Function PA0 E Indication over-temperature PA1 E Code skin temperature PA2 E Code 02 PA3 A Addressing of Multiplexer (A0) Function Description 6141.22X Incubator 8000 IC/SC/NC 09.99 Page 42 of 49... - Page 43 PB5 A Test over-temperature comparator PB6 E NMIQ: evaluation of NMI for cold-/warm start PB7 E Code mains switch on/off free free free CB2 E Test fan failure alarm Function Description 6141.22X Incubator 8000 IC/SC/NC 09.99 Page 43 of 49...
- Page 44 The +5 V supply voltage is also monitored via a watchdog circuit (25A) on the CPU PCB (25). This watchdog circuit cannot be tested during operation because it triggers a reset. Function Description 6141.22X Incubator 8000 IC/SC/NC 09.99 Page 44 of 49...
-
Page 45: Switch Pcb
The AC voltage of the transformer of the unit is rectified on the Power Pack PCB and is stabilized with the 5 V voltage regulator on the right side panel of the electronic module. Function Description 6141.22X Incubator 8000 IC/SC/NC 09.99 Page 45 of 49... -
Page 46: Air Temperature Sensor Inc. 8000 Sc / Ic
The air temperature sensor comprises 2 NTCs. Temperature in °C Resistance in Ohm 6246.0 5970.8 5709.4 5460.9 5224.7 5000.0 4786.1 4582.5 4388.8 4204.4 4028.7 3861.2 3701.6 3549.6 3404.6 3266.3 3134.4 3008.6 2888.5 2773.9 Function Description 6141.22X Incubator 8000 IC/SC/NC 09.99 Page 46 of 49... -
Page 47: Climate Sensor Housing Inc. 8000 Ic
Intended use The Incubator sensor serves measurement of the climatic conditions inside the Incubator 8000 IC. The air temperature, 02-concentration and the relative air humidity are monitored. On units with software version 20.n (without ThermoMonitoring) a skin temperature sensor may be connected to devices which are equipped accordingly. - Page 48 H20 at the lead anode. During this chemical process an electric voltage is produced which is proportional to the oxygen partial pressure. The gold cathode is Function Description 6141.22X Incubator 8000 IC/SC/NC 09.99 Page 48 of 49...
-
Page 49: Skin Temperature Sensor
In addition to the recognition "sensor plugged in" a short-circuiting link is installed in the plug (not used with software version 11.n and 21.n). T (°C) R (Ohm) 33.0 1588.3 36.0 1411.3 38.0 1293.3 Function Description 6141.22X Incubator 8000 IC/SC/NC 09.99 Page 49 of 49...