Specifications

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remove the top immediately, check for problems and try again. If the problem
persists, contact ETS.
3. Turn on the humidifier POWER switch.
If used with an ETS Automatic Humidity Controller, see “Humidifying” in the
Controller manual. The power indicator light will turn on immediately and the
internal blower will begin to operate. When the basin is full, the automatic
water level switch will activate and provide power to the ultrasonic transducer.
When this happens, the unit will start producing a fine mist.
4. Rotate the MIST INTENSITY control.
This control determines how fast the water is converted from a liquid to a
mist. For most applications, set the control at mid-point. Rotating the knob
clockwise will produce a denser mist, rotating the knob counter-clockwise will
produce a finer mist. When operating at high temperatures or in large
enclosures, set the knob at maximum for best results.
2.1.2 Operation
If the system is set up properly, the user does not have to do anything else. Total
operation will be under the control of the Model 518 Microprocessor Humidity
Controller. Refer to Section 3.2 Microprocessor Humidity Controller
Operation.
Continue only after reading the Model 562 section of this manual and
completing the preliminary set-up.
1. Remove the green Caplug covering the Chamber Vent.
The vent inside the chamber is the 1” hose barb on the right wall (the green
plug will be found here). The vent passes through to the outside right wall to
the 1” barb on the outside wall. It should remain open.
2. Set the Model 518 humidity controller set point to a value above the ambient
humidity (Refer to Section 3.2.1 Microprocessor Humidity Controller
Operation).
3. Turn on the “RH” STANDBY switch on the front panel of the Model 518.
This will not automatically turn on the humidifier. Turning on the “RH”
STANDBY switch only makes the humidifier available to the microprocessor
controller.