Model PC100 System Manual Ver A

Operation Manual Installation

Page 2

/ ! - Labeling

2

Controls and Components

3

Temperature and Alarm Systems

4

A. Digital Temperature Controller B. Accessing the Chamber Set Temperature C. Accessing the Low and High Alarm Programs D. Alarm Timer Delay E. Power Failure Alarm

Quality Control

6

A. Calibration of the Digital Controller B. Alarm System Test

Specifications

8

Description of Symbols

8

Maintenance

8

Cleaning

9

Troubleshooting

10

Warranty

12

Appendix (Figures, List of European distributors where applicable)

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Installation 1) Carefully unpack your Helmer Platelet Incubator. Included in the carton is a bag with the following accessories: 1) Power cord. 2) 16mm tube for Quality Control testing. Refer to the Quality Control section. 3) Fan cover for Agitator. This directs the hot air from the Agitator. Remove the backing on the adhesive strips and press this in place onto your Agitator as shown (Figure 0.0) so that the open side of the box is facing the back of the unit. 2) Select a location keeping the following in mind: 1) Allow 4 inches (10 cm) of air space above and to the right side of the unit for adequate air circulation. Use a grounded outlet with adequate power specifications as listed on the specifications label on the back of the unit. 2) Keep away from direct sunlight or high temperature areas. 3) Turn the power switch to "I" (ON) and allow the chamber temperature to stabilize (30 minutes) at the factory preset controller values. While waiting for the chamber temperature to stabilize, carefully continue reading through the instruction manual. 4) Open the door to the chart recorder and connect the leads to the 9 volt battery. 5) Insert an approved, calibrated thermometer on the top shelf of your flatbed platelet agitator. 6) To install platelet agitators, open the incubator door and carefully place the platelet agitator onto the center of the incubator. Plug the platelet agitator power cord into the chamber outlet. Make sure that the power cord is properly secured to prevent cord damage. Turn the platelet agitator power switch to the on position and verify that it is centered within the drawer.

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-Labeling

(Figure 0.1) - The maximum amperage rating for the interior chamber outlet (1), is 0.5 amps. Do not plug any device into the outlet that exceeds this rating.

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Controls and Components Control Panel: The main control panel contains the following: See Figure 1.1 in the Appendix for locations of components referenced below. Digital Controller (1): Provides visual readouts and controlling of the chamber temperature, alarms and other pertinent functions. All settings and calibration inputs are made through the controller touch buttons. Audible Alarm (2): Generates a tone when activated, signaling an alarm condition. Main Power Switch (3): Controls all electrical current to the unit. When the switch is turned to "I" (ON) the refrigeration, heating, fans and electrical systems become operative. All unit functions are shut down when the main power switch is turned to "O" (OFF). Alarm Interrupt Button (4): Pressing this button when the audible high/low alarm has sounded will temporarily silence the audible alarm by resetting the alarm time delay period. Audible Alarm Shutoff Switch (5): The audible alarm can be silenced with the key activated shutoff switch. The unit is shipped with the switch in the "O" (alarm OFF) position. Turn the switch to the "I" (alarm ON) position to activate the alarm.

Refrigeration and Heating System: The chamber is cooled by a refrigeration system in which the compressor unit runs continuously. A heater is turned on by the controller system to maintain the proper set temperature. Thermostat Switch: A high temperature switch is mounted behind the interior back wall to discontinue power to the heater in the event of heating circuit failure.

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Temperature and Alarm Systems A. Digital Temperature Controller Your Helmer system incorporates a digital controller system and RTD sensor to accurately control the temperature of the chamber. The controller system provides visual readouts of the chamber operating temperature, alarm system, heater output, and other functions. All temperature, calibration, and alarm settings are made through the controller touch buttons. See Figure 2.1 in the appendix for locations of the items referenced below. Heater On Indicator (1): This small round light labeled "1", will light whenever the controller sends power to the heater. This indicator will light on and off continuously during normal use. Alarm Indicator (2): When the controller senses that the chamber temperature has exceeded the high or low alarm limit the Alarm Indicator, labeled as "2", will illuminate. The audible alarm is delayed for the period of time set by the Alarm Timer Delay. The adjustable Alarm Timer Delay prevents unnecessary warnings that may be caused by temporary temperature fluctuations when opening the doors. Down Button ( v ) (3): Used to decrease the controller digit values in conjunction with the SET button and to enter into the program functions in conjunction with the ^ button. Up Button ( ^ ) (4): Used to increase the controller digit values in conjunction with the SET button and to enter into the program functions in conjunction with the ^ button. SET Button (5): Used to display the set temperature and to display the program function values. B. Accessing the Chamber Set Temperature To alter the chamber temperature setting: 1) (Figure 3.1) This is the normal display of the current temperature reading. 2) (Figure 3.2) Press and hold the SET button to display the current set temperature value. 3) (Figure 3.3) While holding the SET button down, press either the A o r T button to alter the set value as desired. (If the set value will not change, the Set Point Lockout is in the lockout mode. To unlock this program value refer to "Accessing the Set Point Lockout" in the Controller Lockout section of the Maintenance and Service manual.) 4) Release the SET button to complete the chamber temperature setting change.

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C. Accessing the Low and High Alarm Programs. To alter the Low and/or High Alarm settings: 1) (Figure 4.1) Press and hold the ^ and ^ buttons until a controller program is displayed. (If the "CnFg" prompt appears, the Controller Program Lockout will need to be unlocked. To unlock this program value refer to "Accessing the Controller Program Lockout" in the Controller Lockout section of the Maintenance and Service manual.) 2) (Figure 4.2) Press the ^ button until the "ALO" program appears for the Low Alarm, or "Ahl" for the High Alarm program. 3) (Figure 4.3) While holding the SET button down, press the A o r T button to alter the alarm value as desired. 4) (Figure 4.4) To exit back out to the main operating mode, release the SET button and press both the ^ and ^ buttons until the operating temperature appears on the digital display. D. Alarm Timer Delay The temperature alarm has a variable delay setting, which can be changed to set the length of time desired before activating the audible and central alarm relays. The time can be set from approximately 0 to 8 minutes. You can access this feature by removing the front panel of the unit. The adjustment is made through the dial located on the internal circuit board (Figure 5.1). Turning the dial to its extreme clockwise position sets the delay time to 8 minutes. Turning the dial to its extreme counter-clockwise position sets the delay time to 0 minutes. E. Power Failure Alarm In the event of a power interruption the audible alarm will sound and the central alarm relay will activate. To disable this alarm use the keylock switch located on the front control panel of the unit. It is recommended to place the key for this switch in a location separate from the switch. Disabling the power failure alarm also disables the audible portion of the temperature alarm. However, in this disabled mode the red alarm light on the controller and the central alarm output are still functional.

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Quality Control A. Calibration of Digital Controller To verify that the digital temperature controller is calibrated correctly allow the chamber temperature to stabilize and then take a temperature reading from a calibrated thermometer placed on the top shelf of the agitator inside the chamber. The temperature controller is calibrated correctly if the thermometer reads the same as the controller display. The temperature controller needs to be calibrated if there is a temperature variance. As an example, if a calibrated thermometer reads 21.0°C and the Temperature Controller reads 22.0°C, then the controller display ("CAL" function) needs to be reduced by 1.0°C. If the thermometer reads 23.0°C and the Temperature Controller reads 22.0°C, then the controller display ("CAL" function) needs to be increased by 1.0°C. To recalibrate the Temperature Controller: 1) (Figure 7.1) Press and hold the ^ and ^ buttons until a controller program is displayed. (If the "CnFg" prompt appears first, the Controller will need to be unlocked. To unlock this program value refer to "Accessing the Program Lockout" in the Controller Lockout section of the Maintenance and Service manual.) 2) (Figure 7.2) Press the ^ button until the "Pid" Menu prompt appears. 3) (Figure 7.3) While pressing the SET button (the digital readout will display "no"), press the ^ button to display "yes", and then release the SET button. 4) (Figure 7.4) Press the ^ button once to display the "CAL" prompt. 5) (Figure 7.5) While holding the SET button down, press either the A o r T button to alter the calibration program value. 6) (Figure 7.6) To exit back to the main operating mode, release the SET button and press the A and ^ buttons simultaneously until the operating temperature appears on the digital display. After making any calibration changes to the Temperature Controller allow the chamber temperature to stabilize and make a new reading to verify that the controller is properly calibrated. Make any additional adjustments as needed until the controller readout is properly calibrated.

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B. Alarm System Test To test for proper functioning of the High and Low Alarm System it is important to follow methods that may be recommended by the AABB or other governing organizations for such alarm system checks. A suggested method to activate an actual alarm test condition is as follows: 1) Fill the supplied 16mm tube with water that is at least 1°C beyond the alarm setting to be tested. 2) Place the tube in the holding bracket and slide it up to submerse the end of the probe in the water. (Figure 8.1) 3) Watch for the alarm indicator light on the Temperature controller to illuminate when the temperature reading passes the alarm set point. The audible alarm will then go into the delay mode and sound after the delay period has cycled. 4) Remove the tube and empty the water. Do not leave the tube in a position that covers the RTD sensor. Doing so will cause the controls to take incorrect chamber temperature readings. Caution When the RTD sensor is placed into the water the control system will be responding as if the chamber temperature is the temperature of the water. As a result, the system will adjust to this input accordingly and the actual temperature of the chamber will change. Be careful not to expose any platelets in the chamber to an extended period of varying temperatures.

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Specifications Weight:

48 kg

Input Power:

115 / 230 V~, 50/60 Hz

Consumption:

920 VA Includes the load from standard agitator placed inside the chamber.

Circuit Breakers:

115 V: 12 A 230 V: 6 A

Size:

53 cm (W) x 63 cm (H) x 43 cm (D)

Operating Temperature:

+5 up to +35°C

This device complies with CSA standard 151 and UL standard 1252 for construction and electrical safety. Description of Symbols

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- Conforms to 93/42/EEC

I-I

- Date of Manufacturing

Maintenance It is recommended to conduct the following maintenance items to help keep your Helmer Platelet Incubator in good working condition:

Quarterly:

Clean condenser grill. Conduct alarm and calibration checks. Check the 9V-chart recorder battery.

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Cleaning The importance of proper cleaning of your Helmer Platelet Incubator cannot be under estimated. Lack of cleaning of items, such as the condensor fins, can significantly cut down on the life expectancy of this equipment. Exterior - A soft cotton cloth and non-abrasive liquid cleaner should be used for cleaning the exterior surfaces. The door should be cleaned with a soft cotton cloth and window cleaner. The black condensor fins located on the upper right side of the unit should be cleaned and vacuumed often. Interior - Always turn the power switch off when cleaning the interior of the incubator. A disinfectant cleaner should be used to wipe down the inside stainless steel walls, drawer and interior water drain tray. This should be done on a regular basis or when leaking bags require you to clean the chamber.

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Troubleshooting The information in this section is for the benefit of the user in diagnosing certain issues. If the user cannot resolve a particular problem your service agent may use the more extensive Troubleshooting section in the Service Manual. Contact HELMER or your authorized service representative if more help is needed.

***Electrical*** Problem

Possible Cause

Action to be Taken

Circuit breaker or fuse activated.

- Reset circuit breaker or replace fuse.

Faulty outlet connection.

- Verify outlet is good. Plug into a different outlet.

- Faulty power cord.

- Verify proper cord connections. Change power cord.

- Faulty power switch.

- Replace switch.

Platelet agitator not operating.

- Faulty platelet agitator.

- Verify that agitator is working properly.

Power cord on agitator rubbing.

Agitator not centered in chamber.

- Verify positioning of agitator.

Unit does not turn on.

Power cord not positioned - Verify positioning of cord, properly.

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***Alarms and Controller*** Audible alarm not sounding.

Alarm sounding sporadically.

Not waiting for alarm delay to cycle.

• The alarm system has a delay system before the audible alarm will sound. Wait sufficient time for alarm delay to cycle.

Verify Alarm and Controller settings.

• The controller alarm value or other values may have been altered causing the non-alarm condition. Refer to the proper controller value settings and change accordingly.

- Faulty alarm system.

• Verify proper operation of the controller, secondary circuit board and line connections.

Alarm deviation value set too tight.

During normal operation the temperature will fluctuate as a result of many factors. If the alarm value is set too tight to the operating value the alarm may sound often. The alarm system is to warn of serious unit temperature fluctuations. Increase the alarm value.

Door not closing.

Verify proper alignment of door closure. Verify door gaskets are sealing properly.

Air gaps around door.

Chamber temperature not stabilizing.

Verify that the chamber temperature is maintaining a proper and consistent temperature. Refer to Quality Control section.

Alarm not activating at proper temperature.

- Calibrate controller.

Refer to section on Calibration of the Digital Controller.

Controller setting not calibrated properly.

- Calibrate controller.

Refer to section on Calibration of the Digital Controller.

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***Other*** Ice lying in water tray.

- Refrigerant pressure is low.

- Verify refrigerant pressures. Add refrigerant as needed.

Severe water puddling in water tray.

- Drain hole plugged.

- Unclog drain hole.

Door not closing tight, allowing humid air into the chamber.

Verify that door gasket is sealing and door is closing properly.

Water is puddling outside - Drain pan leaks. of the incubator.

Platelets are "pooling" to one side of the bag.

Seal any leaks in drain pan with silicone.

- Water is condensing on evaporator lines to the compressor.

• Apply additional cork tape to copper lines.

- Excessive humidity.

Water will accumulate more during humid periods. Make sure door is closing properly.

- Unit not level.

Verify that the unit is sitting level. Verify that the agitator is sitting level.

Limited Warranty (USA and Canada) The Helmer Platelet Incubators are warranted for one year for materials and labor at our factory. (For all other countries contact your local distributor.)

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Service Manual Version A Model PC100 Page

Central Alarm Hook-up

2

Remote Probe Installation

2

Temperature Controller Programs

3

Controller Lockout System

5

Controller Error Codes

8

Parts List

9

Refrigeration Recharging Chart

10

Wiring Schematic

11

Troubleshooting

16

A. Electrical B. Alarms and Controller C. Chamber Temperature D. Other

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Central Alarm Hook-up The central alarm hookup described in this section is for the high/low alarm and the power failure alarm. By using this system you are connecting to a relay switch, either normally open or normally closed, depending on terminals used. There is no voltage output provided from this connection. To connect a central alarm system into the platelet incubator's high/low alarm outputs you will need to do the following: 1) Turn the power switch off and unplug the unit. 2) Remove the front panel. 3) Locate the three terminals on the right side of the secondary circuit board. These three outputs are for connecting to a central alarm system. The outside terminal (#16) is the common, the next terminal to the left (#15) is the normally closed contact and the second terminal to the left (#14) is the normally open contact. 4) Connect the central alarm wires to the proper terminals for your alarm system. 5) Cable tie the wires as necessary for stability. 6) Run the central alarm wires through the small grommet located in the back of the exterior panel that was removed. 7) Replace the panel. To connect a central alarm system to the agitator alarm in the platelet incubator, see the agitator or motion alarm instructions. A hole is provided on the right side of the chamber wall for wire access to the chamber. Remove the plug on the exterior side of the wall for access.

Remote Probe Installation To install a third party probe for monitoring or for a supplemental temperature alarm system you will need to do the following: 1) Locate the chamber access hole on the right side of the chamber wall. It is shipped with a hole plug in it. 2) Remove the hole plugs and run the probe through the wall. Depending on the diameter of your probe you may want to drill a hole in the hole plugs and run the probe through those so that the plugs can be replaced in their positions. 3) Locate the two screws on the bottom edge of the rear wall. These two screws are for use in mounting the probe. You may use both or just one depending on the length of the probe. Mount the probe. 4) Seal the access hole in the right wall. If the hole plugs are reused pack the cavity in the wall with a filler material.

Note: For accurate readings of the supplemental system you install using the above probe it is important to locate the probe in this position.

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