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15

Relative Humidity

Compensation

Topics Covered in this Chapter

Relative Humidity Compensation: How it Works

Setting the Relative Humidity Compensation Parameters

Relative Humidity Compensation: How it Works

The controller offers different ways to compensate for high/low relative humidity (RH) levels in the room.

High RH compensation with the heating outputs

The controller can compensate for high humidity levels by activating the heaters in timer mode. As the
RH level increases, the controller increases the “On Time” portion of the heating timer to compensate for
the change. The maximum compensated heating Max “On Time” is reached when the RH level is 10%
above the RH Set Point.

RH heat timer

The RH heat timer is composed of an “On Time” and of a “Cycle Time”. The heaters run during the “On
Time” and then stop until the end of the “Cycle Time”. The “On Time” portion of this cycle increases as the
RH level increases.

890-00081

Expert VT-110

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Содержание Expert VT-110

Страница 1: ...Expert VT 110 User Manual 890 00081 Version 24 REV 19...

Страница 2: ...llustrations photos and specifications in this manual are based on the latest information available at the time of publication The right is reserved to make changes at any time without notice 2 890 00...

Страница 3: ...an Stage Relays 23 Assigning Tunnel Curtain Relays 24 Assigning Inlet Relays 24 Assigning Stir Fan Relays 24 Assigning Cooling Output Relays 24 Assigning Soaking Output Relays 25 Assigning Clock Outpu...

Страница 4: ...it Works 54 Setting the Heater Start and Stop Times 55 0 10V Heater Output How it Works 55 Brooder Heater How it Works 56 Brooder Curve How it Works 56 Setting the Brooder Curve Start and Stop Temper...

Страница 5: ...72 Chapter 18 Transfer Menu 73 Adjusting the Communication Speed 73 Adjusting the Screen Contrast 73 Updating or Making a Backup 73 Chapter 19 Technical Specifications 75 Chapter 20 Expert VT110 77 E...

Страница 6: ...NOTES 6 890 00081 Expert VT 110...

Страница 7: ...rrent DC Alternating current AC Earth Ground Terminal Primarily used for functional earth terminals which are generally associated with test and measurement circuits These terminals are not for safety...

Страница 8: ...nsure that the chassis is electrically connected to earth ground Wear an ESD preventive wrist strap ensuring that it makes good skin contact Connect the grounding clip to an unpainted surface of the c...

Страница 9: ...t 2 heating outputs 1 brooder heater output 8 fan stage outputs 1 cooling stage output 1 stir fan output 1 soaking output 1 air inlet output 1 tunnel curtain output 2 clock outputs 2 built in 0 10 V o...

Страница 10: ...NOTES 10 890 00081 Expert VT 110...

Страница 11: ...ure 2 Using the four remaining screws mount the controller onto the wall CAUTION Do not mount the controller directly onto the drywall Mount it on the supporting structure behind the drywall If this i...

Страница 12: ...NOTES 12 890 00081 Expert VT 110...

Страница 13: ...nylon cable glands for cable or wiring fastening Do not install rigid conduits Alarm wiring Two types of alarms exist For the type of alarm that activates when current is cut off at its input use the...

Страница 14: ...an outside diameter between 0 245 and 0 260 inches 6 22 and 6 60 milli meters solder the cable joints to ensure a proper contact between the two cables 0 10V output wiring 0 10V outputs can be used t...

Страница 15: ...a given menu can t all be presented at once on the display arrows are displayed on the right hand side to indicate that additional parameters can be displayed using the arrow keys After 15 minutes of...

Страница 16: ...tes of inactivity The installer can return to user mode anytime by entering the user password The installer password can be modified User 1 password The user mode gives access to the basic functions o...

Страница 17: ...1 Using the menu select arrow keys navigate to User Temp Probes 2 Enable the desired temperature probes A checkmark is displayed below an enabled probe To enable an other type of probe proceed as fol...

Страница 18: ...Setpoint Select Yes to use a different target temperature at night select No to dis able this function Night Minimum Ventilation Select Yes to change the minimum ventilation fan speed at night select...

Страница 19: ...ng position gradually as the room temperature departs from the start temperature of the last fan stage Select Yes to use the instant opening mode or select No to use the pro gressive opening mode Note...

Страница 20: ...r is enabled Use De Icing Select Yes to enable de icing Digit display Select the information to be displayed on the red LED display T average temper ature SP static pressure T SP avg temperature stati...

Страница 21: ...n temperature probes to this second probe set 1 Using the menu select arrow keys navigate to Ambient Temperature 2 Press on the down arrow key to display the second set of probes NOTE The second probe...

Страница 22: ...NOTES 22 890 00081 Expert VT 110...

Страница 23: ...keys to scroll the display The first number above the relay numbers stands as the first number of the relay Pressing the down arrow key directly goes to the last relay and pressing the up arrow key r...

Страница 24: ...are assigned to fan stages set the On Time and the Off Time of the timer Assigning Tunnel Curtain Relays Relays 7 8 and relays 13 14 are designed to connect actuators When actuators are connected to t...

Страница 25: ...kmark beneath the relay used by the soaking output relay Assigning Clock Output Relays 1 Using the menu select arrow keys navigate to Relay Settings Clock Output and then select the desired clock NOTE...

Страница 26: ...NOTES 26 890 00081 Expert VT 110...

Страница 27: ...per System Time A message prompting you to adjust the system time is displayed if the controller loses power for more than five minutes To ensure accurate feed data history logs and other important sy...

Страница 28: ...clean mode A password is required to change this parameter Using Test Mode The test mode is used to simulate temperature changes and to verify the controller performances During the test the room tem...

Страница 29: ...urve status to Off to disable it and go to step 2 2 Using the menu select arrow keys navigate to Set point Curve Set Point and then set the fol lowing parameters Current Setpoint This is the current t...

Страница 30: ...easing day numbers are not allowed All ten points must be entered If you don t need all ten steps repeat the last temperature for each unnecessary points NOTE The temperature curve must be turned off...

Страница 31: ...ture set point to each step of the curve This parameter can only be modified while the curve is disabled Status Once all 10 curve steps are defined press the down arrow key to select the curve status...

Страница 32: ...NOTES 32 890 00081 Expert VT 110...

Страница 33: ...o prevents the fans from freezing in winter The fan speed and on time can be automatically adjusted over time by using a minimum ventilation curve The minimum ventilation curve must be turned off to a...

Страница 34: ...et the day at which each step starts The day number refers to the animal age This parameter can only be modified while the curve is disabled Speed Assign a fan speed to each step of the curve This par...

Страница 35: ...he room temperature reaches its start temperature and is disabled when the room temperature decreases to its stop temperature Operation of fan stages Start temperatures of fan stages are defined with...

Страница 36: ...ge is reduced to its stage 2 and above minimum speed set in the installation menu when the second variable stage starts This ensures a smooth transition between both stages The bandwidth is the temper...

Страница 37: ...bandwidths separately for winter and for summer Outside Temperature Compensation How it Works Stage 1 and 2 bandwidths can be adjusted automatically as a function of outdoor temperature compensa tion...

Страница 38: ...ir probes reaches the start temperature They increase in intensity as the temperature increases 0 10V outputs reach their maximum intensity when the temperature rises to the Maximum Temperature parame...

Страница 39: ...stage is less than the Stop at Stage value If an outdoor temperature probe is used de icing starts when the outside temperature is equal to or below the Start T and stops when the outside temperature...

Страница 40: ...e used if an outdoor temperature probe is hooked up to the controller The de icing cycle begins when the outdoor temperature is below the start tempera ture and stops when temperature is above the sto...

Страница 41: ...opens to its minimum ventilation position during the On Time Over opening of the air inlet A supplementary stage can be defined in order to continue opening the air inlet beyond the activation tempera...

Страница 42: ...actuator from moving constantly Set it to the desired value Min Fan Speed Set the fan speed over which the inlet can start opening Closed This is the position of the air inlet during the Off Time por...

Страница 43: ...30 cm separates the minimum actuator s posi tion from its maximum position 1 Using the menu select arrow keys navigate to Inlet Stage Opening This menu is accessible if an inlet is enabled 2 Calibrate...

Страница 44: ...Works Resetting the actuator s position is used to clear accumulated time offsets caused by the frequent open ings and closings of the inlet The controller resets the actuator s position at regular i...

Страница 45: ...ensation value is set to 1 WC and the static pressure is 0 05 WC above the high static pressure set point the inlet will open of 5 to help decrease the static pressure in the building The maximum stat...

Страница 46: ...NOTES 46 890 00081 Expert VT 110...

Страница 47: ...This feature is optional and can only be used if an outside temperature probe is enabled Tunnel openings The user must associate an opening time or to each tunnel fan stage When a stage starts the tu...

Страница 48: ...ch the second set or probes start being used Minimum Outdoor T Set the outside temperature below which the tunnel curtain must remain closed This parameter prevents the curtain from opening when it is...

Страница 49: ...ns can be activated to disperse the warm air produced by heating units uniformly throughout the building When they are used for this purpose stir fans start run ning in timer mode when the room temper...

Страница 50: ...Chapter 13 Stir Fan 50 890 00081 Expert VT 110...

Страница 51: ...If stir fans are used in hot temperature conditions set the room tem perature above which the output starts and below which it stops Cold start stop temperature If stir fans are used in cold temperatu...

Страница 52: ...NOTES 52 890 00081 Expert VT 110...

Страница 53: ...t units are activated and run in timer mode according to their minimum timer Min On Time Min Off Time Then as the temperature rises a gradual transition is made from the minimum timer towards the maxi...

Страница 54: ...rks Reference temperature The On and Off temperatures of heating stages are related to the temperature set point This means they are automatically adjusted when the set point changes Heaters 1 and 2 T...

Страница 55: ...gher that its On Temperature If the Hi fire option is used set this temperature separately for both steps of the heating stage 0 10V Heater Output How it Works The controller has two 0 10V outputs tha...

Страница 56: ...puts regular output and Hi Fire output The regular brooder output and the Hi Fire output each uses its particular relay assignment and Start Stop temperatures Closing the Curtains when Brooder Heater...

Страница 57: ...an only be modified while the curve is disabled Temperature Assign a start temperature of the brooder heater to each step of the curve This parameter can only be modified while the curve is disabled S...

Страница 58: ...s maximum intensity This parameter is accessible if the brooder mode is set to 0 10V in the installation menu Minimum output Set the minimum intensity of the brooder heater in This parameter is access...

Страница 59: ...allows stopping cycles with more precision since this mode allows adjusting the seconds On time Off time or Run time Set the time at which each cycle starts then set the moment at which each cycle en...

Страница 60: ...output at Set the temperature at which the output reaches its maximum speed this parameter must smaller than the start temperature Stop at This is the temperature below which the 0 10V output stops 6...

Страница 61: ...roller can compensate for high humidity levels by activating the heaters in timer mode As the RH level increases the controller increases the On Time portion of the heating timer to compensate for the...

Страница 62: ...are shut off to avoid increasing the humidity level any further This means that the cooling stage stops operating whenever the humidity level exceeds the mist shutoff limit The mist shutoff limit rang...

Страница 63: ...um and maximum On Times of the heating timer The minimum On Time starts being used when indoor humidity levels reach the RH set point the maximum On Time is used when humidity levels are 10 above the...

Страница 64: ...NOTES 64 890 00081 Expert VT 110...

Страница 65: ...Alarm Low temperature alarm High Temp Alarm High temperature alarm Low Pressure Alarm Low static pressure alarm High Pressure Alarm High static pressure alarm Probe 1 6 Defect A temperature probe is...

Страница 66: ...tical high temperature defined as an absolute value an alarm is set off Temperature alarms in clean mode The controller can monitor low temperature alarms when it is in clean mode If this alarm condit...

Страница 67: ...owed in the house ranges from 0 5 above the house set point to 120 F 48 9 C Accessible if the outside temp sensor is enabled Water 1 spill limit Specify the maximum amount of water that can be consume...

Страница 68: ...disable the low pressure alarm condition decrease the low pressure value until the word Off is displayed Delay The high or low pressure condition must be maintained on this period of time before the c...

Страница 69: ...age room temperature of the activated probe is displayed Probe Temperature The current readings of each temperature probe is displayed Outside Temperature The current outside temperature is displayed...

Страница 70: ...Using the menu select arrow keys navigate to the desired history menu Option Description Ambient Temperature This menu contains the daily minimum and maxi mum readings of the room temperature of the p...

Страница 71: ...o Monitoring 2 Select the desired history menu Temperature Probes This menu shows the temperature probe readings that were measured every hour for the past 7 days It also gives the hourly reading of t...

Страница 72: ...2 Set the following parameters Age Set the animal age It can be adjusted from 0 days to 450 days New Dead Culled Marketed Enter the number mortalities of culled animals and of mar keted animals as it...

Страница 73: ...Select Contrast and then press the Enter key 3 Set the screen contrast to the desired intensity and then press the Enter key 4 Simultaneously press and hold the up and down Menu Select arrow keys for...

Страница 74: ...If this file name already exists it will be saved under a different name CONTROLLER 2 DMP for instance This way the controller will never erase a file on the card Update Firmware Choose 3 Update Firmw...

Страница 75: ...stic casing Operating temperature 32 to 104 F 0 to 40 C Storage temperature 5 to 122 F 15 to 50 C Ambient relative humidity max 95 Pot output 3 0V 20mA max Potentiometer inputs 1 20K pot linear RH inp...

Страница 76: ...NOTES 76 890 00081 Expert VT 110...

Страница 77: ...put as a variable 1 In the Installation menu set the mode of the 0 10V to Var 2 A new option Out X Min Spd will be available just below its output mode Out X Min Spd is the Minimum fan speed of the 0...

Страница 78: ...NOTES 78 890 00081 Expert VT 110...

Страница 79: ...A Worksheets 890 00081 Expert VT 110 79...

Страница 80: ...Appendix A Worksheets 80 890 00081 Expert VT 110...

Страница 81: ...Appendix A Worksheets 890 00081 Expert VT 110 81...

Страница 82: ...NOTES 82 890 00081 Expert VT 110...

Страница 83: ...ITABILITY FOR A PARTICULAR PURPOSE OR DESIGN OF SUCH PRODUCTS The sole and exclusive remedy for any claimant is set forth in this Limited Warranty and shall not exceed the amount paid for the product...

Страница 84: ...ulations which should be carefully followed in all cases Authorities having jurisdiction should be consulted before installations are made 1004 E Illinois St Assumption IL 62510 0020 Phone 1 217 226 4...

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