Temperature Controller Alarm Datalogger

TEMPERATURE CONTROL OVERVIEW

Gizmo Engineering’s temperature controller, alarm and datalogger is a precision temperature monitoring system designed for industrial use. It ensures accurate temperature control and alerts you when temperature goes out of range

Controls temperature while indicating if tank temperature is in or out-pf-range using a stack light.  Temperature is controlled with a 10A relay to control steam heating solenoids.
Records the status of the tank every 2 minutes. The data logger records the temperature, temperature set-point, liquid level status, and marks them with time and date.  When its time to retrieve the data, all you do is insert a flash drive. 

We make it easy to install and set up. Even the temperatures are pre-programmed to 70-80ºF so you can pug it in and start testing immediately. 

OPERATION

When the temperature is outside the limits you set, the unit sounds an alarm with a 103dB warbling buzzer and a flashing beacon LED. Pressing the green pushbutton silences the buzzer, while the LED continues to flash as a warning that the temperature is not OK.  If the temperature is still out of range in 60 minutes, then a “snooze alarm” feature caused the buzzer to sound again. (this is the default mode)

SIMPLE TO INSTALL

The temperature controller is delivered ready-to-go so you can immediately test it just by plugging it in. Even the default alarms are programmed to 70 and 80ºF so you can bench test it without pushing any buttons. The only further setup needed is to set the exact temperature alarm limits you want. video instructions   We consider the thermowell and associated mounting plate an important part of the system, so they are included.

LIQUID LEVEL ALARM

There are inputs for two float switches.  If the liquid level falls below an upper float switch, an alarm is given on the blue stack light.  If the second liquid level is reached, then the relay output is disabled, in addition to the audio visual alarms.  This makes it ideal for plating operations.

ALARM OUTPUTS

In addition to the audio and visual alarms, an additional relay output is ready for connection to a building alarm system. (N.C. or N.O)  For more flexibility, output can be delayed 15 minutes in order to give the operator a chance to correct the problem before emergency services might be called.

COLD TANK START

For tanks that will be shut down periodically, you simply press the red button to idle a tank. When this happens, the buzzer won’t sound persistently, but is limited to only short chirps to notify you of status changes. To put the tank back into service, press the green button.  The temperature alarm knows that the tank is cold and will need time to get up to temperature so the buzzer waits for the temperature to get in range before becoming active.  After that, the buzzer will sound if temperature ever strays out of range.

Throughout all of this, this temperature controller alarm stack lights continue to indicate if temperature is in or out-of range, and data collection continues.

Everything is meant for wash-down service. All thse features combined make this the ideal temperature controller for plating operations.

MODES OF OPERATION

1.  SNOOZE ALARM – is enabled by default so that after the buzzer is silenced, it will sound again in 60 mins.

2. RELAY OUTPUT DELAY – the relay output is for connection to PLCs or building alarm systems, heat control, etc.. The relay output can have a 15 minute delay.

3. BATTERY – select if using the optional battery.

4. MASTER/SLAVE option is for chaining multiple units together so they can all be put in idled or put in “active” mode by pressing a single button on the master box.

5. BOOT LIVE option is for starting the TCAD up from a timer. It will boot up into “active mode. Complete details here.

Alarm set-points can be either a fixed high and low, or a deviation from a floating set-point. (further discussion in the instruction video, and also in the printed instructions)

BATTERY BACKUP

If power fails, the temperature alarm lets you know about this too, with an alarm.  It will run from battery for 2 hours before it shuts down. (in the default mode)  In addition, the battery voltage is checked every 12 hours and the unit will alarm if battery needs replacement.