Gemo DT104A-230VAC-R temperature controller 

Gemo control products have been sold in our company since 2013.

- 48*48 mounting dimensions and 220v supply (24v must be specified in the order)
- 2 relay outputs (SSR output must be specified in the order)

- Heating Hysteresis: 0 .. 50 / 0.0 .. 50.0 oC (H.Hys); If 0, PID control is selected.
- Possibility to choose relative, absolute, band or “sensor broken” alarm
- Line Comp.: 10 Ohm max. (3 wire Pt100)
- Optional SSR output option
- Derivative Time: 0:00 .. 10:00 min:sec. (OFF if 0:00)
- Delay feature for cooling output
- Sensor Protection: If the sensor or sensor line is broken, the measuring scale is out of range or the input measurement fails, the OUT output becomes active according to P.Err and Ct values ​​(if Perr is 0, it is not active, OFF), see ALARM output. “Alarm Output”.
- Password protected
- Alarm Hysteresis: 1 .. 50 / 0.1 .. 50.0 oC (A.Hys)
- Ability to keep program and control parameters in memory
- P, PI, PD, PID or ON-OFF control form - optional

- Input: J, K, T, S, R type T/C, Pt100, optional (click for all our sensor models)
- Sensitivity: ± 1 oC or ± 0.1 oC

- Alarm Output: Relay (NO + NC), 250VAC, 2A, Resistive load, (NO only for DT104)
- Integral Time: 0:00 .. 30:00 min:sec. (OFF if 0:00)
- Power Consumption: < 8VA
- Heat SET Setting: Lo.L .. UP.L oC (H.Set)

- Supply Voltage: 100..240VAC, 50-60Hz or 24VDC/AC (insulation voltage 40VAC max.)

- Measurement Scale:

 -100 .. 600 oC, J type T/C (Inpt=J type thermocouple),

-100.0 .. 600.0 oC, J type T/C (Inpt=J.0 j type fe-conts)

-100 .. 1300 oC, K type T/C (Inpt=k type nic-ni),

-100.0 .. 999.9 oC, K type T/C, (Inpt=k.0) -

100 .. 400 oC, T type T/C (Inpt=t type thermocouple),

-100.0 .. 400.0 oC, T type T/C (Inpt=t.0 thermocouple )

0 .. 1750 oC, S type T/C (Inpt=S type thermocouple )

0 .. 1750 oC, R type T/C (Inpt=r type thermocouple )

-100 .. 600 oC, Pt100, (Inpt=Pt100)

-100.0 .. 600.0 oC, Pt100, (Inpt=Pt.1000)

Note: You can find the above temperature measuring sensors on our website.

Note 2: Short article about Pt100 and thermocouple comparison >


- Alarm SET Setting: AL.tY = Abs,-Abs; Lo.L .. UP.L oC (A.Set)
- Control Period: 1 .. 200 sec (Ct)
- Display: 4 Digits 7 Segment PV, 4 Digits 7 Segment SV
- Sensor type: T/C (J,K,T,S,R), Pt100, optional - multi input + Nicr-Ni sensor.
If H.Hys” value is “0”, PID control form becomes active (only for heating function).- PbC:Proportional Band Value, indicates how many degrees before time proportional operation will start to H.SET value.

The Proportional Band (H.SET) ends at degrees.-

Ct: Control period; 1 - 10 seconds should be selected for good control.- Ti: Integration time; The difference between the process value and the SET value is compensated by the PID algorithm. The lower the Ti value, the shorter the response time. Too low to avoid oscillation of the process value

Ti values ​​should be avoided. If Ti is 0, the Integral part of the algorithm is ignored; algorithm works as P or PD.-

Td: Derivative time; The sudden changes between the process value and the SET value are compensated by the PID algorithm.

As the Td value increases, the sensitivity to sudden changes increases. Therefore, excessively high Td values ​​should be avoided. If the Td value is 0, the Derivative part of the algorithm is ignored; algorithm works as P or PI.

- Gemo DT104a User manual (pdf) -

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