MINITHERM6-MCU

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Tel: +44(0)1621 859500 

Fax: +44(0)1621 855335 

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**Models Available MINITHERM6-MCU** Quad Range Temperature Controller 

## **Product Features** 

Ideal for OEM heating and refrigeration 4 temperature range options For use with 10K NTC thermistor probe 16 Amp changeover relay output 110Vac, 230Vac or 24Vdc powered Energy regulation feature Lockpot operation feature Onboard LED or optional remote LED 

## Tempatron ~~O~~ o 

## **MINITHERM6-MCU[TM] Temp. Controller** 

The Tempatron MINITHERM6-MCU[TM] quad range temperature controllers are designed for a wide range of OEM heating and refrigeration applications, and are ideal for replacement of electromechanical controls. Any one of four commonly used temperature ranges can be selected by cutting just two wire links. They are available in 110Vac and 230Vac versions (or 24Vdc to special order) with a 16 Amp changeover relay output and are compatible with industry standard 10K (@25°C) NTC thermistors. 

These chassis mounting modules measure only 70mm x 45mm and have an integral energy regulation feature (link selectable) which reduces the connected heating/cooling power to 33% duty cycle as the temperature approaches the setpoint. An onboard (or optional remote) LED indicates current temperature status and diagnostic conditions. 

## **For temperature control in machinery, systems and operational processes** 

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Dimensions Connections<br>45.0<br>Note:<br>The thermistor connections are not isolated from the AC supply.<br>Probe<br>LED<br>The unit is set for   33%<br>M3 oi {4 | 1p *<br>onboard LED indication PAD<br>To select  remote LED<br>ole indication, ‘spin cut’ the  . T3 o T2 ff Links T2, T2R, T3, T3R<br>copper pad adjacent to  K Leave in place for<br>the LED to disconnect the  T3R T2R temperature range of 73 to 99°C<br>| (itt onboard LED. Connect  ~ ©,, |—— Cut links T2 and T2R for<br>the remote LED to the  LED temperature range of 22 to 54°C<br>2-pin  LED  Molex header  O a Cut links T3 and T3R for<br>22.0 (ensuring LED cathode is  temperature range of -20 to +6°C<br>17.0 connected to pin  K ). Cut links T2, T3 and T3Rtemperature range of 4 to 34°C. for<br>ltd Jd]<br>N/O C N/C N L<br>Load Connection Power<br>Supply<br>ss<br>16.5 7.5<br>33.0<br>70.0<br>7.5<br>**----- End of picture text -----**<br>


**Dimensions** 

## **33% Duty Cycle** 

This feature cycles the output on for 6.4 seconds every 19.2 seconds as the temperature approaches the setpoint. This can reduce over/undershoot in many basic temperature control applications. It is primarily intended for heating applications. ‘Spin cut’ the pcb pad (copper side, top right) adjacent to the 8-pin integrated circuit to enable this feature. 

All dimensions in mm 

Continued... 

Email: sales@tempatron.co.uk 

Tempatron 

Web: www.tempatron.co.uk 

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|**Ordering information**|**Ordering information**||
|---|---|---|
|**Model**|**Code**|**Description**|
||MINITHERM6-MCU          Quad Range Temperature Controller||
||T1: 73 to 99°C|T1: 73 to 99°C|
||T2: 22 to 54°C|T2: 22 to 54°C|
||T3: -20 to +6°C|T3: -20 to +6°C|
||T4: 4 to 34°C|T4: 4 to 34°C|
|**Auxiliary Power**|**Code**|**Description**|
||110V|110Vac|
||230V|230Vac|
||24V|24Vdc|
|**Example                MINITHERM6-MCU-230V**|**Example                MINITHERM6-MCU-230V**||



## **Specification** 

## **Power Supply Voltages:** 

110Vac (45-60Hz) 

- 230Vac (45-60Hz) 24Vdc (to special order) 

**Supply Voltage Variation:** 

±15% **Burden:** 

- 3.8mA nominal (relay off) 

- **Input:** 

Non-isolated NTC thermistor 

(10K @ 25°C) **Temperature Ranges:** 

- T1: heating 73 to 99°C (factory set) 

- T2: heating 22 to 54°C (cut T2 & T2R links) 

- T3: cooling -20 to +6°C (cut T3 & T3R links) 

- T4: heating 4 to 34°C (cut T2, T3 & T3R links) 

**Output:** 

- Single pole changeover relay contact 16A at 240Vac/30Vdc (resistive) 

**Status LED Indication:** 

## **Lockpot Operation** 

This feature allows the potentiometer setting to be locked, thereby eliminating unauthorised adjustment of the temperature control. 

To use this feature simply:- 

1. Set up the required temperature using the adjustment potentiometer. 

2. Switch off the auxiliary power to the controller. 

3. Insert the red programming link into the 2 pin header marked **LP** . 

4. Switch on the auxiliary power to the controller. The LED will blink on for 5 seconds indicating **LOCKPOT off** , then change to continuous flashing indicating **LOCKPOT on** . 

5. Switch off the auxiliary power to the controller and remove the programming link. 

6. Repeat above to re-select **LOCKPOT off** . 

- Off, blinking on: 

- On, temperature out of range 

Flashing on/off: 

- On, temperature in range 

On, blinking off: 

- On, nearing set temperature Continuous on: 

- Off, at set temperature 

- Flashing @ 2 seconds: 

- Off, lockout failure 

**Electrical Connections:** 

- Five 6.3mm blades for power (L, N) 

- & relay output (N/C, C, N/O) 

- 2-pin molex connector for thermistor 

2-pin molex connector for remote LED **Mounting:** Two M3 fixing pillars spaced 33mm **Operating Temperature:** 

- -20ºC to 65ºC 

**Enclosure Code:** 

- Case IP00 

**Weight:** 

- 35g 

Specification subject to change without notice. 

Tempatron: Eltime House, Hall Road, Maldon, Essex, CM9 4NF UK. 

Tempatron Industrial Controls is a division of Eltime Ltd. 

© Eltime Ltd.  Tempatron MINITHERM6-MCU Temperature Controllers 09/2011