Gemo DT721 (two-key heat controller) 

We have been selling Gemo products on our website since 2013.

- Input supply voltage 220v (24 volt supply must be specified with order)
- Input type ; J type thermocouple - fe-conts
- Output type ; with relay output, (must be specified in order for SSR)

SEt and SET value are displayed intermittently on the screen. It waits for 2 seconds without pressing any button.

While SEt and SET value are displayed intermittently, the new SET value is adjusted by using the Up or Down Arrow keys.

After the adjustment is made, it is waited for 2 seconds without pressing the keys. The new SET value is automatically saved in the memory.

or: The sensor or sensor line is broken, or the measuring scale is out of range, or the T/C is reversed, or the device is faulty.

>> Hys code and hysteresis value are monitored intermittently on the screen. The desired hysteresis value is entered using the up and down arrow keys. After login, it waits for 5 seconds without pressing any keys. The hysteresis value is automatically written to memory.
New values ​​entered >0 .. 50 °C >Wait 5 seconds >Enter UP.L Value.

+ UP.L code and Upper Limit value for SET are displayed intermittently on the screen. The desired Upper Limit value is entered using the lower and upper arrow keys. After login, it waits for 5 seconds without pressing any keys. The Upper Limit value is automatically written to the memory.

+ OUT output turns OFF if PV is greater than or equal to the measured temperature value SET value. If the PV value is less than or equal to the (SET-Hys) value, the OUT output is ON.

- Easy connection with socket terminal
- Protection Class: IP20; According to EN 60529
- Optional SSR output option
- Safety: EN 61010-1; Pollution degree 1, measurement class I (Light industrial environment only, double/reinforced insulation, non-conductive pollution)
- Dimensions: DT721: 72x72 mm,
- Power Consumption: < 6VA
- Adjustable Upper Limit Value for SET
- Ambient Temp. Comp. : 0 .. 50 oC (T/C)

- Sensor Protection: OUT output will not be energized if the sensor or sensor line is broken, the measuring scale is out of range or the input measurement is unsuccessful.
- SET Setting: 0 .. 600 oC (J type) or 0 .. 999 oC (K type) (Can be limited by Up.L value)
- Sensor type: T/C, Fe Const, J type or NiCr-Ni, K type (must be specified with order)
- Out Output: Relay (NO + NC), 250VAC, 2A, Resistive load, (option SSR)
- Adjustable Hysteresis value
- Hysteresis Setting: 0 .. 50 oC
- ON-OFF control form can work easily on speed controllers panels.
- Measuring Scale: 0 .. 600 oC (J type) or 0 .. 999 oC (K type)
- Display : 3 Digits 7 Segments
- Ambient temperature compensation for T/C
- Supply Voltage: 100..240VAC, 50-60Hz or 24VDC/AC (insulation voltage 40VAC max.)
- Input : Fe-Const, J type T/C or NiCr-Ni, K type T/C -optional-
- Possibility to monitor Set and Process values ​​on the display
- Ability to keep program and control parameters in memory

- Gemo DT721 User manual -

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++ Gemo electronic main page

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