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1/16 DIN Temperature Controllers with Autotune, Alarms and RS485

1/16 DIN Temperature Controllers


Article# CN743

Remises de volume disponibles
Calendrier de remise sur volume
Quantité Prix unitaire
1-9 C$194.83
10-24 C$185.09
25-49 C$175.35
50-99 C$165.61
100-499 C$155.86
500+ C$146.12

En stock

Délai de livraison (si pas en stock): 34 semaines
1/16 DIN Temperature Controllers CN743 CN743
  • Affichage double
  • Réglage automatique
  • Communications RS485
  • Logiciel inclus
  • Fonctions d'alarme
  • Entrées thermocouples/sondes RTD
  • État de la sortie

CN743 Options de modèles

Voir tous les modèles

Modifiez ces spécifications pour commander un modèle différente. Toutes les combinaisons ne sont pas valides. Les options compatibles avec les sélections précédentes seront en gras.

*Les options en surbrillance ne sont pas compatibles. Veuillez sélectionner une combinaison différente.

Output Type
Measurement Type
Control Outputs
Form Factor
Number Of Inputs
Input Type
Supply Voltage Type
Display Type


Comment fonctionnent les Régulateurs de température

Les régulateurs de température série CN740 offrent des mesures et une régulation précises de la température, dans un boîtier DIN 1?16. Conçus pour une action directe ou inverse (chauffage ou refroidissement), ils peuvent être programmés pour commander la fonction marche/arrêt et recevoir des fonctions de commande PID plus complexes. La commande par PID permet un réglage manuel ou automatique. Sélectionnez la sortie à relais, les impulsions CC ou la sortie en intensité comme méthodes de commande. La série CN740 accepte des signaux d'entrée de différents thermocouples et sondes RTD. La valeur mesurée et la valeur de seuil s'affichent simultanément sur l'affichage double à LED. Le panneau avant indique également le type de réglage (manuel/auto), l'unité de mesure (°F ou °C) et l'état de l'alarme. Chaque unité comprend deux sorties d'alarme et 12 fonctions d'alarme préprogrammées.


Entrées :
thermocouple, sonde RTD (consulter le tableau)
Affichage : deux lignes de 4 digits,
7 segments LED, 6,35 mm (H) (0,25")
Mesure : rouge
Consigne : vert
Précision : ± 0,25 % du span, ± 1 chiffre le moins significatif
Tension d'alimentation : 100 à 240 Vca, 50/60 Hz
Consommation d'énergie : 5 VA max
Température de fonctionnement : 0 à 50 °C (32 à 122 °F)
Mémoire de sauvegarde : non volatile
Valeurs nominales des sorties de commande :
Relais : SPST,
5 A à 250 Vca en résistance
Impulsion de tension : 14 Vcc,
10 à -20 % (max 40 mA)
Intensité : 4 à 20 mA
Communication : protocole de communication
RS485 Modbus®
Découpe du panneau : 45 mm2 (1,77 in2)
Face avant : 48 mm2 (1,89 in2)
Épaisseur max. du panneau : 9,50 mm (0,375")
Profondeur du panneau : 80 mm (3,15")
Poids : 114 g (4 oz)
Étanchéité du panneau avant : IP66
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Rated 5 out of 5 by from inexpensive, works well. I use this controller to maintain the temp in a molten salt furnace. With the auto tune it holds a constant temp with minimal over shoot and fast reaction time.
Date published: 2016-03-03
Rated 2 out of 5 by from Reliability is marginal Originally had six units, three failed after 1 year. The internal relay contacts became intermittent, one fused in the "on" position. They are only switching 2 amps, and are rated for 5.
Date published: 2017-02-24
Rated 4 out of 5 by from 1/16 DIN Temperature Controllers Product works well and can easily be integrated with most controls systems. The only complaint is that the lead time is often quite long if the items are not in stock.
Date published: 2023-11-06
Rated 2 out of 5 by from Incorrect controller purchased Cannot give a good rating becauae I was unable to use this product due to incorrect purchase. I found it difficult to select the correct type of controller on the site.
Date published: 2023-03-12
Rated 5 out of 5 by from good price, works perfec, twe can use for temperature, RH, presu
Date published: 2021-10-16
Rated 5 out of 5 by from Controller features have On/Off and PID Control Because this controller has both On/Off & PID Control I was able to configure it to my oven.
Date published: 2018-03-28
Rated 5 out of 5 by from Great Service Bought this recently and pleased that I did, it performs as advertised.
Date published: 2017-10-26
Rated 5 out of 5 by from Amazing little control marvel Great product with the right features. It does just what I need from a proportional control
Date published: 2017-02-23
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loading all QA

What is manual control mode? Does auto tune mean P,I,D values will be determined by device itself?

Asked by: Hero
Manual mode is used when you have an analog output option Controller. It allows you to select the percentage of the low or high output range to be delivered to the load.
Answered by: ApplicationsEngineerANB
Date published: 2024-01-16

I'm confused what the "relay" output means. Does that mean that I do not need a separate solid state relay? My understanding was to use this and connect the output to a SSR, however I am now now sure

Asked by: BigFatBunny
Thank you for your inquiry! The answer will depend on if your load pulls over the maximum current rating for the CN743's relay, which is 5A. If your load pulls under 5A, you will not require an SSR. Application Engineer CK
Answered by: Application Engineer CK
Date published: 2021-10-08

Can the software in this device ramp up or down the temperature depending on the time I set it to? Or is this just a simple turn on / off software ?

Asked by: Engineer_55
Thank you for your inquiry. Unfortunately, this unit does not have the ramp & soak feature. Refer to its counterpart CN7800 that does.
Answered by: Application Engineer CB
Date published: 2023-07-06

Does the CN 743 have a built in relay? Do you need a Solid state relay to operate this model?

Asked by: BAMA HEAT
The CN743 has a Single Pole Single throw built in relay for Output 1 and additional alarm relays. It is rated at 5 Amps at 240 VAC so can directly be used with moderate size loads directly.
Answered by: ApplicationsEngineerANB
Date published: 2024-02-09

Does Omega certify or if necessary, re-calibrate the CN742 controller for temperature and 4-to-20MA output. Target temp. is 80F. Does a new controller come certified?

Asked by: Smed
Thank you for your inquiry. We do not re-calibrate this unit.
Answered by: Application Engineer CB
Date published: 2024-06-14

For the CN745, I did not see an "Output" option in the Communication Parameters List. Does this exist?

Asked by: NEXT
Thank you for the inquiry. Please forward this question to TEMP@OMEGA.COM so that we can better support you. Best regards OMEGA
Answered by: AENwlk
Date published: 2021-09-13

Is the relay output just a simple on/off signal? Is the DC Pulse a PWM signal, and, if so, what is the duty cycle and frequency range?

Asked by: ajrs
Hi AJRS, Both relay and pulse outputs can be used as PID control. Output is based on cycle time not PWM and is set by user. Cycle time down to 1 second is available. But fastest relay cycle time should limited to 7 to 10 seconds. Best regards
Answered by: NorwalkAE_RS
Date published: 2021-09-13

for CN745, the product does require any solid state relay? I am not sure that in case of current output control any solid state relay is required. Could you recommend any solid state relay or items which are required to be purchased with the CN745?

Asked by: Wonsang
Output #1 is an analog control output that can be programmed using the PID tuning control your process. You can either manually tune the PID values, or use Auto tune providing the process is for temperature and you have a set point at least 100 degrees (C or F) above your starting ambient temperature.
Answered by: Application Engineer JB
Date published: 2021-09-13
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Noise Suppression RC snubber (2 leads), 110 to 230 Vac for mechanical relay models driving AC contactors or solenoids
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