ENVIRONMENTAL HUMIDITY CHAMBER MODEL: HC6-2 INSTALLATION AND OPERATIONAL MANUAL REV. 11/12 4861669 Sheldon Manufacturing Inc. P.O. Box 627 Cornelius, Oregon 97113 EMAIL: tech@shellab.com INTERNET: http://www.shellab.com/~shellab 1-800-322-4897 (503) 640-3000 FAX (503) 640-1366 1
TABLE OF CONTENTS SECTION 1.0 SECTION 2.0 SECTION 3.0 SECTION 4.0 SECTION 5.0 SECTION 6.0 SECTION 7.0 SECTION 8.0 SECTION 9.0 RECEIVING AND INSPECTION GRAPHIC SYMBOLS THEORY OF OPERATION INTRODUCTION INSTALLATION OPERATION MAINTENANCE TROUBLESHOOTING PARTS LIST UNIT SPECIFICATIONS SCHEMATICS These units are for professional, industrial or educational use where the preparation or testing of materials is done at approximately atmospheric pressure and no flammable, volatile or combustible materials are being heated. These units are not intended for hazardous or household locations or use. 2
RECEIVING AND INSPECTION 1 Section Your satisfaction and safety require a complete understanding of this unit. Read the instructions thoroughly and be sure all operators are given adequate training before attempting to put the unit in service. NOTE: This equipment must be used only for its intended application; any alterations or modifications will void your warranty. 1.1 Inspection: The carrier, when accepting shipment, also accepts responsibility for safe delivery and is liable for loss or damage. On delivery, inspect for visible exterior damage, note and describe on the freight bill any damage found, and enter your claim on the form supplied by the carrier. 1.2 Inspect for concealed loss or damage on the unit itself, both interior and exterior. If necessary, the carrier will arrange for official inspection to substantiate your claim. 1.3 Return Shipment: Save the shipping crate until you are sure all is well. If for any reason you must return the unit, first contact customer service for authorization and supply nameplate data, including model number and serial number. Please see the manual cover for information on where to contact customer service. 1.4 Verify that all of the equipment indicated on the packing slip is included with the unit. Carefully check all packaging before discarding. These units are equipped with 2 shelves, 1 set Hanger Brackets for Shelves, 2 Hanger Rods for Shelves, and 4 leveling feet. 3
GRAPHIC SYMBOLS Section 2 Your incubator has been provided with a display of graphic symbols which is designed to help in identifying the use and function of the available user adjustable components. 2.1 Indicates that you should consult your manual for further description or discussion of a control or user item. 2.2 Indicates Temperature. 2.3 Indicates Over-Temperature Safety. 2.4 C Indicates Degrees Centigrade. 2.5 Indicates ON/I and OFF/O. 2.6 Indicates Relative Humidity. 2.7 Indicates Potential Shock Hazard behind this protective partition. 2.8 Indicates Protective Earth Ground. 2.9 Indicates Unit should be recycled (Not disposed of in land-fill) 4
THEORY OF OPERATION Section 3 3.1 The Model HC6-2 Humidity Chamber is designed to maintain temperature from ambient +5 C to 100 C. The Humidity System is designed to control humidity from 40% to 80% between the temperatures 40 C to 100 C. 3.2 The Temperature control is a PID Set Point Control with timer. The controller has a RTD 100 ohm Input Sensor for controlling the temperature inside the chamber. The timer is preprogrammed from the factor for a 20 minute count down after Set Point is reached. (Only if the timer functions is activated.) After 20 minutes, a buzzer will sound for a period of 5 minutes unless it is deactivated. 3.3 The Humidity Control is a PID Set Point Control with Timer. The Controller Sensor is a HMM30C Vaisala Humidity Sensor Set Up for a 0-10VDC input. Where 0VDC=0% humidity and 10VDC=100% Humidity. The timer is preprogrammed from factory for a 5 minute countdown after Set Point is reached only if the timer function is activated. After 5 Minutes, a buzzer will sound for a period of 5 minutes unless it is deactivated. 5
INTRODUCTION HC6-2 chambers are designed specifically to create conditions with relative humidity of 40-80%. The chamber features rapid condition recovery after the chamber door is opened and closed. The large viewing area offers easy observation of critical samples. The chamber interior is made of high quality, corrosion resistant material. Specifications Temperature Uniformity +0.5C Temperature Control 40ºC to 100C Humidity Range 40 to 80% RH (of specified temperature range) Humidity Control +5% Interior Dimensions 24 W x 18 D x 22 H Exterior Dimensions 29.5 W X 27 D X 37 H with Carboy Holder 36.5 W X 27 D X 37 H Shelf Work Area 21 W X 14 D Electrical 220-240V, 8 A, 60 Hz Features Digital temperature and humidity display, PID control 1/8DIN, set-point & process value displayed simultaneously with built in timers. Rapid recovery after chamber door is opened and closed Solid state sensors eliminate need for frequent replacement of wicks Chamber interior made of high quality, corrosion resistant material Forced air flow to ensure uniform internal conditions Large front viewing window Low water level indicator Humidity injection indicator Heating indicator OTL Thermostat with OTL Indicator Section 4 6
INSTALLATION Unpacking This product has been completely tested, cleaned and packed for shipment. Carefully remove all packing material. Please examine the chamber completely. Should any damage be found, notify the delivering carrier immediately. Report any shortages to your local distributor or contact SHELDON MANUFACTURING, INC. customer service at (503) 640-3000, (800) 322-4897 (USA only) or tech@shellab.com. Chamber Location The chamber must be located in a dry, clean, and level area. Allow a 2 inch (51 mm) clearance from the back of chamber for proper air circulation. Locate the chamber in an area out of direct sunlight and away from heating and cooling ducts. Caution: Do not put more than 5 lbs (2.3kg) on top of unit. Section 5 The figure below shows the exhaust port on the back of the chamber. Install rubber stopper (with 90 Copper Vent Tube) into port and press in firmly. If external ducting to a fume hood or exterior vent is necessary, make connection here. Note that temperature, humidity, and recovery time may be affected. Power Requirements The power cord of this chamber is equipped with a grounded plug. Be sure to connect the ground. SHELDON MANUFACTURING, INC. recommends that the chamber have a dedicated wall outlet. Verify correct power supply required for particular unit. Water Connections Plumb the water drain connection to a facility drain. Connect the water inlet to a water supply. The chamber requires distilled, reverse osmosis or deionized water with 7
resistivity between 0.05 & 1 Mega Ohmn-cm and ph above 6.5. Using water outside this range will void the warranty. Carboy water bottle (optional) Mount the universal carboy holder either on the top of the chamber or on the side (as shown below). Use the mounting screw holes provided and secure the holder. Connect tubing to carboy, fill bottle and install as shown. The water supply must gravity drain. The bottle cap must have a weep hole for it to work properly. 8
Condensate Recirculating System (optional) The Condensate Recirculating System can be used in conjunction with SHELDON MANUFACTURING, INC. s HC6-2 chambers as a water delivery system. This system is typically used in facilities where a drain or in-house source of distilled, RO or deionized water is not available. The system provides continuous, clean, filtered water to the chamber s humidity injection system, collects and recycles the condensate that forms in the base of the chamber. Use fittings provided with unit for hook-up. Install Shelf / Hanging Rails Insert both shelf tracks into the chamber (see picture below). Each unit is equipped with both a shelf and evidence rails/clips. Orient the shelf handle toward the front. Maximum shelf load is 22lbs (10kg) per shelf. Sliding shelf Right shelf track 9
OPERATION Section 6 Start Up Turn all switches on Front Panel to the OFF position. Plug unit into correct rated outlet in the wall. Be sure the water connections are properly made and the Exhaust Stopper and Vent Tube are installed. Turn power switch to ON position. The Power Light, SL Logo, and Temperature Control should illuminate. Setting Temperature and OTL Thermostat Turn OTL Thermostat dial to maximum setting. Push either UP or DOWN Arrow on Temperature control once and then use the UP or DOWN Arrows to set desired temperature. The Set Point Display (bottom display) will move up or down according with the up or down arrows. After the desired set point is reached, the Set Point Display will blink once after a few seconds after entering the Set Point into the control. Allow unit to stabilize for several hours. Turn the OTL Dial Counter Clockwise slowly until the OTL Light starts blinking and Heating Light stops blinking. Then, turn OTL Dial clockwise slowly until OTL Light stops blinking and Heating Light starts blinking. Continue turning OTL Dial Clockwise about 1/16 (1.59mm). If the unit is used at different process temperatures, pick the highest process temperature to set OTL or the OTL will have to be each time for different process temperatures. Countdown Timer The Countdown Timer provides users with a way to alert them to check or remove chamber contents. It does not turn the chamber off or in any way affect the temperature or humidity control. Both temperature and humidity controls have built in timer functions. The temperature control is preset at the factor for 20 minutes. Using Timer Both Temperature and Humidity Control Timer functions are the same. After opening door, contents have been placed in chamber and door is closed, push the Function Key 10
once and the preset time will appear in the bottom display, the timer will start counting down only when the temperature or the humidity control set point are reached. After the countdown is complete, the buzzer sounds alerting the user that chamber contents need to be check or removed. The buzzer is programmed to shut off automatically after 5 minutes. To shut buzzer off manually or abort timer function at any time, push the Function Key Once. Changing Timer Preset Time Procedure is the same for both Temperature and Humidity Controls. Push the Program Button once. Use the UP and DOWN arrows to scroll programming parameters (CONF, PARA, OPER). These parameters will appear in the Bottom Display. Scroll until OPER appears in the Bottom Display and push the Program Button again. Now you have entered the Operation Parameter List Menu and SP1 will appear in the Bottom Display. Use the UP or DOWN Arrows to scroll through Parameter List until t1 appears in the Bottom Display. This is where the preset time is stored. To change time, push the Program Button and the t1 will start blinking. Use the UP and DOWN Arrows to change desired time. After time is entered, wait until Top Display blinks and t1 stops flashing. Press the Function Key Normal Display. repeatedly to exit back out to Using Humidity Function Before using Humidity, allow unit to warm up interior walls and glass for 30 minutes after temperature set point has been reached to avoid condensation buildup on interior walls and glass. Turn the Humidity Switch to the ON position. The Humidity Control will illuminate and the Water Fill Light will illuminate. The Humidity Tank Reservoir will fill up (approximately 30 seconds) and the Water Fill Light will go out. To set the RH% Set Point, use the same method as described in Setting Temperature in Setting Temperature and OTP Section. Viewing LIght Turn Interior Light Switch to ON position. Calibration Both Temperature and Humidity Controls use an Offset Calibration Method and are done the same way. Place an independent temperature and humidity measuring device in chamber. Select desired set point and allow several hours to stabilize. To enter offset in either control, push the Programming Button once. Use the UP and DOWN arrows to scroll programming parameters (CONF, PARA, OPER). These parameters will appear in the bottom display. Scroll until CONF appears in the Bottom Display and push the Programming Button again. Now you have entered the Configuration List Menu. Using the UP and DOWN Arrows to scroll through the list until 11
INP appears in the Bottom Display and push the Programming Button again. Now you have entered the Parameter Configuration Setting List for Control Input 1 and SENS should appear in the Bottom Display. Using the UP and DOWN arrows until OFFS appears in the Bottom Display. This is where the Controls Offset Calibration is stored. To change the offset, push the Programming Button once and OFFS will start blinking. Using the UP and DOWN Arrows to change the desired offset. After the offset is entered, the Top Display will blink once and the OFFS will stop blinking. Press the Function Key repeatedly to return to EXIT and back out to Normal Display. Switching Chamber from Humidity to Oven Operation Condensation is common and should be expected in a Humidity Chamber. When switching from Humidity to an Oven Operation, turn the Humidity off. Then, set the Set Temperature to 100 C. Open the door for 30 minutes. After that time, close the door for 40 minutes. This should allow the chamber time to dry before the Oven Operation. 12
Temperature Setup CONF MENU INP SENS 2 OFFS 0 df 1.6 UNIT 1 LC LC1 LC2 FNTC 0 FNTC 2 BINF BIN1 0 CNTR CtYP 1 CACt 1 HANd 101 Rout 0 SPL 20 SPH 100 CPr 1 tfct FNCt 1 Strt 0 UNIt 0 SIGN 1 t1 20:00 t2 5 tolt 1 rafc FNCt 0 Humidity Setup CONF MENU OTts P Out L OUt 1 9 OUt 2 0 OUt 3 1 disp disu 2 disl 3 dist 1 out 180 Tres 0 desp 0 tas 4 tast 0 INP SENS 25 OFFS 0 SCL 0 SCH 100 Df 3.0 UNIT 1 LC LC1 LC2 FNTC 0 FNTC 0 BINF BIN1 0 CNTR CtYP 1 TEMPERATURE PID VALUES PARA Pb1 2 dt 13 rt 54 cy1 11.1 Hyst 1.0 Y0 0 Y1 100 Y2-100 CACt 1 HANd 101 Rout 0 SPL 0 SPH 80 CPr 1 tfct FNCt 1 Strt 0 UNIt 0 SIGN 1 t1 5:00 t2 5 Tolt 1 rafc FNCt 0 OTts P Out L OUt 1 9 OUt 2 0 OUt 3 1 disp disu 2 disl 3 dist 1 tout 180 Tres 0 desp 0 tas 4 tast 0 HUMIDITY PID VALUES PARA Pb1 3 dt 40 rt 175 cy1 1.0 HysI 1.0 Y0 0 Y1 100 Y2-100 13
MAINTENANCE Section 7 Note: Prior to any maintenance or service on this unit, disconnect power cord from the power supply. Fuses are located on the back of the unit next to power cord. Electrical components are located underneath the top/back panel. For additional service support, contact your local distributor or Sheldon Manufacturing, Inc. Customer Service at tech@shellab.com. When contacting Sheldon, please provide model number and serial number Routine Maintenance Routine chamber maintenance is necessary to keep the chamber working properly. The recommended chamber maintenance schedule is: a) Clean interior chamber (as needed) b) If the humidity control portion of the chamber is going to be unused for 20 days, the small internal water reservoir should be drained. To drain the internal reservoir: vent (remove stopper) c) Check drains for blockage (monthly) WARNING: Before removing top/back panel, disconnect all power! 14
TROUBLESHOOTING Section 8 Always make a visual inspection of the unit and control console when troubleshooting. Look for loose or disconnected tubing and wires which may be the source of the trouble. PROBLEM Unit won t reach temperature set point Temperature displayed is different than measured temperature inside chamber POSSIBLE SOLUTION Is the set point within the unit specification range? Is the door closed and latched? Can air flow freely throughout the chamber? Inhibited air flow can trip the over temperature safety device. Remove airflow obstructions and let stabilize for 30 minutes Can air flow freely throughout the chamber? Calibrate the Control Temperature is higher than set point Is the set point within the unit specification range? Is the ambient temperature no more than 25ºC? Turn unit off and open door for 1 hour. Humidity controller is blank (temperature controller is illuminated) Is the humidity enabling switch on? Unit won t reach humidity set point Is the low water level light on? Is there adequate water supply? Can air flow freely throughout the chamber? Is the humidity set point within the unit specification range? Low water light stays lit Is the water supply connected? Is there adequate water being supplied to the chamber? Are there any air traps in the line? If using a carboy or other reservoir, is there a weep hole to allow free flow? Humidity displayed is different than measured humidity inside chamber Can air flow freely throughout the chamber? Calibrate control Interior lights won t come on Are lights turned on? Glass fogs up on inside Has the unit stabilized 1 hour? Residual Moisture in the bottom tray of chamber. When operating in Humidity Mode, moisture collecting in the bottom tray is normal. After performing Switching Chamber from Humidity to Oven Operation procedure, the moisture should evaporate. 15
PARTS LIST Description 220-240V Section 9 ALARM BUZZER 0250501 CHAMBER FAN 4880508 FUSE 3300513 FUSE HOLDER 3300501 EMI FILTER 2800502 CONTROL DOOR TEMPERATURE 1750747 LED LIGHT STRIP 4650544 OTP LIGHT RED 4650553 POTENTIOMETER 6550505 POWER CORD 1800537 POWER SUPPLY 24 VDC 2A 6750515 POWER/HEATING LIGHT GREEN 4650554 PROBE RTD 6600520 RELAY SOLID STATE 45A DC 7030533 RELAY TIME DELAY 8250508 RESISTOR 7050513 ROUND CHERRY SWITCH 7850532 SENSOR RH 4100506 SOLENOID WATER FILL 8600569 16
WIRING DIAGRAM HC6-2 220-240V (9851298) 17
FROM RELAY 1 TERM 4 FROM TEMPERATURE CONTROL SEE PAGE 1 FOR MAIN CONTROL WIRING FROM RELAY 1 TERM 3 WHT FLOAT SWITCH 7850563 R2 COIL ~~~~~ 6 2 STEAMER RELAY R2 7030528 GRY 8 7 BLU BLU 4650553 WATER SOLENOID 8600569 WATER FILL LIGHT (R) WHT WHT WHT WHT 150 C ½ TB2 L1-SW 6 4 STEAMER RELAY R2 7030528 SOLID STATE RELAY 7030533 1 4-3+ 2 YEL 5 10 (L1) 4 9 (L2) 3 8 (NC) 2 7 (C) 6 (NO) 1 1750823 WHT RED WATLOW FIXED LIMIT YEL 2350539 6600519 TC PROBE 4650554 RH INJECT LIGHT (G) WHT ½ TB2 L2-SW RED HT HT WHT RED STEAMER ELEMENT 240V/500W CARTRIGE STYLE 108 (COLD) 15 16 19 20 JUMO ctron 08 1750824 1 2 N L1 OUT IN HUMIDITY SENSOR 4100506 RED WHT 24VDC POWER SUPPLY 6750515 RED WHT 18
SHELDON MANUFACTURING, INC. LIMITED WARRANTY Sheldon Manufacturing, Inc., ( Manufacturer ) warrants for the original user of this product in the U.S.A. only that this product (parts only if outside of the U.S.A.) will be free from defects in material and workmanship for a period of one year from the date of delivery of this product to the original user (the Warranty Period ). During the Warranty Period, Manufacturer, at its election and expense, will repair or replace the product or parts that are proven to Manufacturer s satisfaction to be defective, or, at Manufacturer s option, refund the price or credit (against the price of future purchases of the product) the price of any products that are proven to Manufacturer s satisfaction to be defective. This warranty does not include any labor charges if outside of the U.S.A. This warranty does not cover any damage due to accident, misuse, negligence, or abnormal use. Use of Manufacturer s product in a system that includes components not manufactured by Manufacturer is not covered by this warranty. This warranty is void in the event that repairs are made by anyone other than Manufacturer without prior authorization from Manufacturer. Any alteration or removal of the serial number on Manufacturer s products will void this warranty. Under no circumstances will Manufacturer be liable for indirect, incidental, consequential, or special damages. The terms of this warranty are governed by the laws of the state of Oregon without regards to the principles of conflicts of laws thereof. If any provision of this limited warranty is held to be unenforceable by any court of competent jurisdiction, the remainder of this limited warranty will remain in full force and effect. This warranty is in lieu of and excludes all other warranties or obligations, either express or implied. Manufacturer expressly disclaims all implied warranties, including without limitation, the warranties of merchantability and fitness for a particular purpose. For fast and efficient support, please have the following information available anytime you request service: Model Serial No. Part No. 19