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Universal Temperature-Process Controllers
CN8541TC-R1
PLACE ORDER - NEMA 4X (IP66) Front Panel Standard
- Universal Power Supply
- User-Selectable Ramp to Setpoint
- Smooth Auto/Manual Operation
- Optional RS232 or RS485 Communications
- Autotuning Heat or Cool
- Thermocouple, RTD, Voltage, or Current Input
- Plug-In Outputs Modules (Field Installable)
- Dual Outputs and Alarms
- Optional Heater Break Alarm, Remote Setpoint, Transducer Power Supply, and Recorder Output
Description
Description
The CN8500 Series temperaturecontroller is versatile anduser-friendly. The operator needs toreview only those parametersrelevant to the particular application.A dual digital display offers optimalprocess information at a glance.The dedicated upper display showsthe process temperature, while thelower display displays setpoint andsetup parameters. Individual LEDs identify the status outputs, alarms,digital communications, and specialoptions. The CN8500 Seriesfeatures a NEMA 4X front panel anda universal power supply thataccepts 103 to 253 Vac and103 to 330 Vdc.Control algorithms available are P,PI, PD, PID, and on/off. Theautotune feature automatically setsproportional band, rate, and resetbefore the process reachessetpoint. These parameters providequick stabilization of both theheating and cooling process withoutovershoot, hunting, or cycling. Thestandard dual control outputs canbe configured in a variety of controland alarm applications such asheat, heat/cool, heat/alarm, cool, orcool/alarm. The ramp-to-setpointfeature allows the user to define therate of rise to reach the setpoint,thus minimizing thermal shock tothe load during start-up.
SPECIFICATIONS| Input Code | Type | Range | Resolution |
| TC | J
Iron-constantan | -18 to 760°C | 1°C |
| 0 to 1400°F | 1°F |
K
CHRtrodeks®-ALtrodeks | -18 to 1349°C | 1°C |
| 0 to 2460°F | 1°F |
T
Copper-constantan | -129 to 316°C | 1°C | | -200 to 600°F | 1°F |
N
trodeksLLOY® | -18 to 1299°C | 1°C | | 0 to 2370°F | 1°F |
R
Pt/13% Rh-Pt | -18 to 1299°C | 1°C | | 0 to 3200°F | 1°F |
S
Pt/10% Rh-Pt | -18 to 1299°C | 1°C | | 0 to 3200°F | 1°F |
| RTD | RTD
3-wire, 100 Ω Pt | -200 to 850°C | 1°C |
| -328 to 1562°F | 1°F |
RTD
3-wire, 100 Ω Pt | -128.8 to 232.2°C | 0.1°C | | -199.0 to 450.0°F | 0.1°F |
| V5 | 1 to 5 V | Scalable (-1999 to 9999) | Selectable |
| 0 to 5 V |
| V10 | 2 to 10 V | Scalable (-1999 to 9999) | Selectable |
| 0 to 10 V |
| MV | 10 to 50 mV | Scalable (-1999 to 9999) | Selectable |
| 0 to 50 mV |
| MA | 4 to 29 mA | Scalable (-1999 to 9999) | Selectable |
| 0 to 20 mA |
Performance
Accuracy: ±0.2% FS, ±1 digit
Setpoint Resolution: 1 count/0.1 count
Repeatability: ±1.0 count
Temperature Stability: 5 µV/°C max; 3 ìV/°C typical
Thermocouple Cold-Junction Tracking: 0.05°C/°C ambient
Common Mode Rejection: >100 dBA
Series Mode Rejection: >70 dBA
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 5 A @ 120 Vac, 3 A @ 240 Vac
Current: 4 to 20 mA, 500 Ω max
Voltage: 20 Vdc pulse, 1 kΩ min load
Triac: Solid state relay, 120/240 Vac, zero voltage switched rated 1 A continuous, 10 A surge @ 25°C (77°F)
Alarms: Optically isolated triac rated 1 A, 120/240 Vac @ 25°C (77°F)
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 s
Reset: 0 to 3600 s
Cycle Time: 0.2 to 120 s
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
General
Power: 115 to 230 Vac ±10%, 50/60 Hz; 115 to 300 Vdc ±10% (auto-polarity)
Display: Dual LED, 4-digit process display, green menu/parameter display; 9.2 mm (0.37") high for 1/8 DIN models; 14 mm (0.55") process display for 1/4 DIN units
Power Consumption: Less than 6 VA (instrument) @ 120 Vac
Weight (1/8 DIN): 0.34 kg (12 oz)
Weight (1/4 DIN): 0.425 kg (15 oz)
Panel Cutout (1/8 DIN): 45 x 92 mm (1.772 x 3.622")
Panel Cutout (1/4 DIN): 92 mm (3.622") square
Dimensions (1/8 DIN Horizontal): 53 x 100 mm (2.1 x 3.95"); 18.3 mm (0.72") depth
Dimensions (1/4 DIN): 100 W x 100 H x 18.3 min bezel (3.95 x 3.95 x 0.72")
Panel Depth: 100 mm (3.937")
Front-Panel Rating: NEMA 4X (IP66)
Operating Ambient Range: 0 to 55°C (32 to 131°F) @ 90% RH max, non-condensing
Memory Protection: Solid state non-volatile memory
Connections: Rear barrier strip with locking terminals
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