# Controller, Temperature/Process, 1/16 DIN, Type J/K/N/R/S/T/RTD, 0 to 55 °C, CN8500 Series

![Product image](https://novapart.co/image/farnell:3807923/)

**URL**: https://novapart.co/products/CN8501TC-DC1-C2/controller-temperature-process-1-16-din-type-j-k-n
**SKU**: CN8501TC-DC1-C2
**Manufacturer**: OMEGA
**Category**: Automation & Process Control || Temperature Controllers
**Price**: €963.9600
**Stock**: 10+
**Lead Time**: 57 days (indicative)

## Specifications

| Parameter | Value |
|---|---|
| Svhc | No SVHC (04-Feb-2026) |
| Product Range | CN8500 Series |
| Thermocouple Type | J, K, N, R, S, T, RTD |
| Output Voltage Max | 20VDC |
| Output Voltage Min | - |
| Temperature Accuracy ± | 0.2% |
| Operating Temperature Max | 55°C |
| Operating Temperature Min | 0°C |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:3807923/)

## **1 ⁄16 DIN Temperature/Process Controllers** 

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CN8500 Series<br>**----- End of picture text -----**<br>


- U **NEMA 4X (IP65) Front Panel** 

- U **User Selectable Ramp to Setpoint** 

- U **Bumpless Auto/ Manual Operation** 

- U **Optional RS232 or RS485 Communications** 

- U **Autotuning Heat or Cool** 

- U **Thermocouple, RTD, Voltage, or Current Input** 

- U **Dual Output and Dual Alarm Capability** 

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- U **Optional Remote Setpoint, Transducer Power Supply and Recorder Output** 

- U **Optional Power, 24 Vdc/Vac** 

The CN8500 temperature controller is extremely versatile and user‑friendly. The operator needs to review only those parameters relevant to the particular application during setup. A dual digital display offers optimum process information at a glance. The dedicated upper display shows the process temperature, while the lower display displays setpoint and setup parameters. Individual LED’s identify the status of outputs, alarms, digital communications and special options. The CN8500 features a NEMA 4X (IP65) front panel and a universal power supply that accepts 103 to 253 Vac and 103 to 330 Vdc. Control algorithms available are P, PI, PD, PID, or on/off. The autotune feature automatically sets proportional band, rate and reset before the process reaches setpoint. These parameters provide quick stabilization of both the heating and cooling process without overshoot, hunting or cycling. The standard dual control outputs can be configured in a variety of control and alarm applications such as 

heat, heat/cool, heat/alarm, cool, or cool/alarm. The ramp to setpoint feature allows the user to define the rate of rise to reach the setpoint, thus minimizing thermal shock to the load during start‑up. 

## **Specifications Performance** 

**Accuracy:** ±0.2% of full scale, ± digit **Setpoint Resolution:** 1 count/0.1 count **Repeatability:** ±1.0 count **Temperature Stability:** 5 µV/°C maximum; 3 µV/°C typical 

**Thermocouple Cold Junction Tracking:** 0.05°C/°C ambient 

**Common Mode Rejection:** >100 dB **Series Mode Rejection:** >70 dB **Process Sampling:** 10 Hz (100 ms) 

## **Inputs** 

**Thermocouple Lead Resistance:** 100 Ω max for rated accuracy **Response Time:** 0.1, 1.0, or 10 s **Decimal Position:** Selectable 

## **Outputs** 

**Output #1:** Reverse acting (heating) **Output #2:** Direct acting (cooling) 

**Mechanical Relay:** Rated 5A @ 120 Vac, 3A @ 240 Vac 

**Current:** 4 to 20 mA, 500 Ω maximum **Voltage:** 20 Vdc pulse, 1 k Ω minimum load **Triac:** SSR, 120/240 Vac, zero voltage switched rated 1A continuous, 10 A surge @ 25°C 

**Alarms:** Optically isolated triac rated 1A, 120/240 Vac @ 25°C 

## **Control Characteristics** 

**Setpoint Limits:** Limited to configured range for thermocouple and RTD; limited to scaled range 

**Alarms:** Adjustable for high/low, process or deviation **Rate:** 0 to 900 seconds **Reset:** 0 to 3600 seconds **Cycle Time:** 0.2 to 120 seconds **Gain:** 0 to 400 

**Gain Ratio:** 0 to 2.0 (in 0.1 increments) **On/Off Deadband:** 1 to 100 counts **Spread (Output 2):** 0 to 100 counts (above setpoint) 

**Damping:** Adjustable (low, normal or high) **Ramp to Setpoint:** 1 to 100 minutes **Autotune:** Operator initiated from front panel 

**Manual Control:** Operator initiated from front panel 

**P-43** 

**P** 

## **Input Types and Ranges** 

## **General** 

**Power:** 115 to 230 Vac ±10%, 50/60 Hz; 115 to 300 Vdc ±10% (auto‑polarity), optional 24 Vdc/Vac **Display:** Dual LED, 4‑digit, orange process display, green menu/ parameter display; 9.2 mm (0.37") 

**Power Consumption:** Less than 6 VA (instrument) @ 120 Vac **Weight:** 0.25 kg (8 oz) 

**Panel Cutout:** 45 mm (1.772") square **Dimensions:** 53 H x 53 W x 18.3 mm bezel (2.1 x 2.1 x 0.72") 

**Depth Behind Panel:** 100 mm (3.937") **Front Panel Rating:** NEMA 4X (IP65) **Operating Ambient Range:** 0 to 55°C (32 to 131°F); 90% RH maximum, non‑condensing **Memory Protection:** Solid state non‑volatile memory **Connections:** Rear barrier strip with locking terminals 

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Bezel Dimensions<br>01<br>@<br>Al<br>A2 pe ew]<br>is<br>FA<br>53<br>(2.1) Fe<br>CO: OMEGA’<br>——— 53<br>(2.1)<br>Dimensions: mm (inch)<br>**----- End of picture text -----**<br>


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in Also Available 1⁄8<br>1<br>DIN and  ⁄4 DIN<br>Sizes!<br>**----- End of picture text -----**<br>


|**Input**<br>**Code**|**Type **|**Type **|**Range **|**Resolution**|
|---|---|---|---|---|
|**TC**<br>(1°F)<br>(1°F)|Iron‑Constantan||‑18 to 760°C(0 to 1400°F)|1°C(1°F)|
||CHROMEGA®<br>‑ALOMEGA®||‑18 to 1349°C (0 to 2460°F)|1°C (1°F)|
|||Copper‑Constantan|‑129 to 316°C(‑200 to 600°F)|1°C(1°F)|
||OMEGALLOY®||‑18 to 1299°C (0 to 2370°F)|1°C|
||Pt/13%Rh‑Pt||‑18 to 1760°C (0 to 3200°F)|1°C|
||Pt/10%Rh‑Pt||‑18 to 1760°C(0 to 3200°F)|1°C(1°F)|
|**RTD**|3‑wire,100ΩPt||‑200 to 850°C(‑328 to 1562°F)|1°C(1°F)|
||3‑wire, 100ΩPt||‑128.8 to 232.2°C<br>(‑199.0 to 450.0°F)|0.1°C<br> (0.1°F)|
|**V5**|0 to 5V,1 to 5V||Scalable(‑1999 to 9999)|Selectable|
|**V10**|0 to 10V, 2 to 10V||Scalable (‑1999 to 9999)|Selectable|



|**To Order**|**To Order**|
|---|---|
|**Model Number**|**Description**|
|**CN8501(*)-(**)**|Single output|
|**CN8502(*)-(**)-(***)**|Dual output|



_Comes complete with operator’s manual._ 

_****** Specify input code:_ _**“TC”** (thermocouple),_ _**“RTD”** ,_ _**“MV”** (voltage to 50 mV),_ _**“V5”** (voltage to 5V),_ _**“V10”** (voltage to 10V) or_ _**“MA”** (current to 20 mA). See input type table above for details._ 

_******* Specify output code(s) from output options table below. Single output units can be ordered for either heat (reverse) or cool (direct) action._ 

_For power option add suffix_ _**“-24”** to model number for 24 Vdc/Vac power, for an additional cost._ 

## **Output Options (No Additional Cost)** 

|**Output Type **|**First Output Heat Only**<br>**(Reverse) Order Suffix**|**Second Output Cool Only**<br>**(Direct)† Order Suffix**|
|---|---|---|
|**5 A Relay**|**-R1**|**-R2**|
|**1 A SSR**|**-T1**|**-T2**|
|**4 to 20 mA**|**-F1**|**-F2**|
|**20 Vdc Pulse**|**-DC1**|**-DC2**|



_**†** Single output controllers can be ordered for either heat (reverse) or cool (direct) acting._ _**Ordering Example: CN8501TC-R2,**[1] ⁄16 DIN controller, thermocouple input, 5 A relay output configured for cooling operation._ 

## **Options ([1] ⁄16 DIN—Only 1 Option Available Per Unit)** 

|**Order Suffix**|**Description**|
|---|---|
|**-A**|Dual alarms|
|**-C2**|RS232 communications|
|**-C4**|RS485 communications|
|**-PV1†**|4 to 20 mA recorder output|
|**-PV2†**|0 to 5 Vdc recorder output|
|**-RSP1†**|Remote switch closed with 1 alarm|
|**-RSP2†**|Remote switch open with 1 alarm|
|**-RSP3†**|0 or 5 Vdc remote setpoint with 1 alarm|
|**-XP1**|Transducer power supply, 15 Vdc|



_**†** Not available for voltage or current input models with input codes_ _**“MV”** , “_ _**V5”** ,_ _**“V10”** or_ _**“MA”. Ordering Example: CN8502V5-F1-F2-C2,** 0 to 5 Vdc input, dual 4 to 20 mA outputs, RS232 communications._ 

## **Accessories** 

|**Model No.**|**Description**|
|---|---|
|**CNQUENCHARC**|Noise suppression RC snubber (2 leads),<br>110 to 230 Vac|
|**CN8-SW††**|Remote monitoring and control software|



_**††** Free CN8-SW software download available_ 

**P-44** 



## Links

- [View this product on Novapart](https://novapart.co/products/CN8501TC-DC1-C2/controller-temperature-process-1-16-din-type-j-k-n)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/omega/cn8501tc-dc1-c2/temperature-process-controller/dp/3807923)
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