Directed Electronics 554A Specifiche Pagina 1

1Section A Chambers 1.0 Model 518 CONTROLLED ENVIRONMENT CHAMBER Many applications require a controlled environment for testing, fabricating and

10Section B: Humidity 2.0 HUMIDITY OPERATING SYSTEMS 2.1 Humidification System The Model 518 Chamber includes an ETS Model 562 Ultrasonic Humid

11remove the top immediately, check for problems and try again. If the problem persists, contact ETS. 3. Turn on the humidifier POWER switch. I

12When the microprocessor tells the humidifier to activate, the small green LED in the upper, left corner of the microprocessor display will light.

13 2. Empty all the water from the unit. Siphon water out or soak it up with a sponge. 3. Disconnect (or remove) the water tank. 4. Clean the surf

142.2.1 Desiccant/Pump Dehumidification System The Model 561 Dehumidification System is a closed loop system, designed to reduce the relative humid

156. Contents: 1 lb. of #8 mesh CASO4 Indicating Desiccant. 7. All connections are made using 5/16” ID tubing. ¼” ID x 5/16” OD hose barb adapters

168 Turn on the “RH” STANDBY switch on the front panel. This will not automatically turn on the dehumidification system. Turning on the “RH” STAND

17operate continuously to assure a constant supply of dried air on demand. The 3-way control valve controls the flow of dried air into the chamber

18 2.2.2.3 Self-Regenerating Dehumidification System Set-Up The standard self-regenerating dehumidification system is contained entirely within th

195. The microprocessor will determine the amount of drying needed to maintain the desired set-point. If less than the full drying capacity of the

2The systems are totally accessible by removal of the acrylic panel on the right side of the Chamber. Controllers and operating systems that are ava

203.2 Microprocessor Humidity Controller Operation 3.2.1 Set-Point Adjust 1. Press and hold the “∗” button. The letters “rh” will appear, follow

21 The minimum cycle time for the ETS Model 562 is 1.0 second. 3.2.3 Dehumidification System The Dehumidification System air pump is located insid

223.3 Programming the Microprocessor Controller 3.3.1 Accessing the Programming Menu 1. To access the Controller Program Menu, press the “t” and

233.3.3 LEVL 1 (Level 1) Level 1 is the programming level. The Proportional, Integral, and Derivative controls are adjusted here. The combination

24 der.t – (2.0) Derivative Time in seconds. The derivative time, in combination with the dAC, is responsible for keeping the environment moving t

25SET.2 – (0.0) Setpoint 2 allows the user to create a setpoint offset for the Dehumidification System. It is generally not used for the Desiccant

26Limits maximum SP1 (humidifier) output power during warm-up and in proportional band. PL.2 – (100) Set SP2 power limit percentage, 100 to 0% of

27 OUTPUT CONFIGURATION SP1.d – (SSd1) Do not change. Assigns humidification control to the appropriate output. SP2.d – (SSd2) D

28 VEr – software version rSEt – (none) Do Not Change. If the unit is reset, all programmed information will be lost. Each parameter must be re-

29 Because the controllers are “stand alone” they do not need PC supervision for their normal function, and will continue to control the process una

31.1.1 Front Panel Description The front panel of the Model 518 Chamber is shown in Figure 1.0-3. Figure 1.0-3

30Software installation instructions can be found on pp. 9-11 of the CALCOMMS Manual. The CALCOMMS Manual is separate from the CAL 3300 Users Man

31Section C Temperature 4.0 HEATING OPERATING SYSTEMS 4.1 Heating System The Model 518 Chamber contains two (2) 250 Watt Electric Heaters (500 Wa

32 The ETS Model 563 Gas Cooling System enables the temperature within the Model 518 Chamber to be reduced below ambient. 1. The System utilizes Li

334. Although CO2 is non-toxic, it can cause asphyxiation if not used in areas with adequate ventilation. The Model 518 Chamber is equipped with a

34The CO2 will bleed out of the cooling nozzle, into the chamber. When all the CO2 is out of the system, the flow of gas from the nozzle will stop.

35 2. To lower the CO2 consumption rate and extend the operating time per tank, insulation should be added to the chamber. Adding insulation will r

365.0 MICROPROCESSOR TEMPERATURE CONTROLLER 5.1 System Description The microprocessor temperature controller, with Model 554 RTD Temperature Senso

37This will not automatically apply power to the heaters. Turning on the “TEMP” STANDBY switch only makes the heaters available to the microprocess

38If less than the full output capacity of the cooling system is needed, the controller will provide pulses of power to the unit to limit the output

39Addr – (1) Instrument Communication Address. This address may be changed to any number suitable to the user. bAud – (9600) The baud rate shoul

41.1.1.2 Front Panel Switches 1. ‘POWER’ - The Main Power Switch is the black rocker switch located directly below the Temperature Controller, to t

40bAnd – (1.0) Proportional Band for the heaters. int.t – (4.1) Integral Time in minutes. The integral time is responsible for calculating ho

41SP2 OPERATING PARAMETERS The SP2 parameters can be configured in a variety of ways. In the Model 518 temperature controller, the SP2 parameters

42MANUAL CONTROL MODES SP1.P – Read SP1 output percentage power. (Read only). hAnd – (off) SP1 Manual percentage power control. For manual co

43inPt – (Lin1) Selects a Linear Input Voltage setting (0-50mV) for use with the ETS Model 554 RTD Temperature Sensor & Sensor Interface PC Boar

44 NOTE The Model 518 ‘Sensor Interface Board’ includes an internal ZERO adjustment pot that is far more accurate than the microprocessor settin

455.4 CALCOMMS - Computer Interface CALCOMMS is a graphic Windows™ based software package designed for PC supervision of CAL 3300 Controllers. It

465.4.1.2 Connections 1. Connect the supplied 9-pin male/female subminiature-D cable to the RS-485 COMM PORT on the ‘Side Interface Panel’. 2. C

476.0 WARRANTY Electro-Tech Systems, Inc. warrants its equipment, accessories and parts of its manufacture to be and remain free from defects in ma

48 CONTROLLED ENVIRONMENT CHAMBER Model 518C Operating Manual 11/14/02

5controllers used for interfacing the Model 554 Sensor with the microprocessor sensor inputs. 1. Switches - The switches are permanently mounted to

6Calibration Procedure: 1. Attach the 0-1 VDC signal source to the Senor Input Jack on the ‘Switch PC Board’, pins 1&4. Pin 1 = Humidity, Pin

7 Figure 1.0-2 Model 518 Side Interface Panel 1.1.2.1 AC Power Cord Input (Mains) Labeled POWER, this Universal IEC power con

8The RS 485 portion of the Comm Port will only be active if the Controller is fitted with the COMMS option (see section 1.2.1 LEVL C). The COMMS op

91.1.2.4 COOL INPUT When using the standard Model 563 Liquid CO2 Cooling System, a brass quick disconnect fitting is located in the top, right corn