1/4 DIN Temperature / Process Controller with Ramp/Soak and Fuzzy Logic
- NEMA 4X (IP65) Front Panel
- P, PI, PID Selectable Control Modes
- On-Off, Alarm Selectable Control Modes
- Autotune or Manual PID Selectable
- Fuzzy Logic
- Fully Programmable Display
- Percent Output Indication
- Peak/Valley Indication
- Decimal Point Selectable from 1 to 0.001 for Process Inputs
- Four Password Protected Security Levels
- Auto/Manual Control
- 16 Segments of Ramp/Soak with Program End Control
- Loop Break Function and Indication
- Wide Range Power Supply
- Universal Input for Temperature and Process
- Regulated Loop Power Supply for Transmitters
- Front Panel Programmability
- Alarms with Selectable Modes Available
The CN72000 Series Temperature/Process Controlers offer a high level of standard features in an economical 1/4 DIN package. Featuring universal input for thermocouples (J, K, E, T, L, N, B, C, S, R), RTDs (100ohms Plt. NIST,
100ohms Plt. DIN, 120ohms Ni industrial, 1000ohms Plt. DIN), differential input
(-10 to +10 mVdc), and process input (0 to 20 mAdc, 0 to 10 Vdc); the CN72000 Series offers easy setup for most temperature and process applications. A standard
24 Volt isolated, regulated power supply is included to power most standard 4 to 20 mA transmitters.
Standard features include Autotune, Fuzzy Logic, fully adjustable PID, Auto/Manual control with bumpless transfer and front panel activation key, percent output indication, peak and valley indication, loop break protection and indication. For process inputs the display is fully programmable from -1999 to +9999 with user placeable decimal point. Most thermocouple and RTD inputs
can show whole or tenth degree display. The ramp/soak function has 16 programmable segments, four end of program options, and
a run/hold key on the front panel.
The CN72000 Series is available with dual setpoint outputs, and can be programmed for on-off, PID or heat/cool or latching alarm. All outputs are isolated from the inputs. Outputs include 10 Amp relay,
2.5 Amp SSR, and 0 to 20 mAdc (scalable). 15 Vdc SSR drive is a standard feature on relay and
ac SSR models only. Optional dual alarms are fully programmable. Other options include Analog Remote Set Point, Analog Retransmition of either Process Variable or Set Variable, and
4-Stage Set Point.
The CN72000 sets a new standard in quality, features, ease of use, and value. While having
the highest level features and functions, many function setup items only appear in the control menu
when the function is selected. There is no need to wade through unnecessary menu items to get to the
function you need. For the best value in a 1/4 DIN control, the choice is the OMEGA¿ CN72000 Controller.
SPECIFICATIONS
Front Panel Selectable Inputs: Thermocouple, RTD, DC Voltage, or DC current
Input Impedance:
- Thermocouple = 3 Megohms minimum
- Voltage = 5000 ohms
- Current = 10 ohms
- RTD Current = 200 ╡A maximum
Sensor Break or Short Protection: De-energizes control output to protect system
Setpoint Range: Selectable
Display: Two 4-digit, 7 segment 14.2 mm (0.56") high LED
Control Action: Selectable for Reverse (usually heating) or Direct (usually cooling)
Proportional Band: 1 to 9999 degrees or counts
Reset Time (Integral): Off, or 0.1 to 99.9 minutes
Rate Time (Derivative): Off, 0.01 to 99.99 minutes
Cycle Rate: 2 to 80 seconds
Approach Rate: Off to 99.99 minutes
Fuzzy Logic Intensity: 0 to 100%
Fuzzy Logic Rate: Off, or 0.01 to 99.99 degrees or counts per second
Fuzzy Logic Band: Off, or 1 to 4000 degrees or counts
On-Off Differential: Adjustable from 1 degree or count to full scale
Loop Break Protection: Error message is initiated upon shorted sensor or open heater circuit. Break time is adjustable from Off to 9999 seconds.
Loop Break Alarm: Optional alarm may be programmed to operate upon a loop break
Alarm On-Off Differential: 1 degree or 1 count
Scaling for Current and Voltage Inputs: Minimum of 100 counts placed anywhere between -1999 to +9999, maximum of -1999 to +9999. Scale low and scale high points are selected independently
Ramp and Soak: 16 segment times adjustable from 0 to 9999 minutes or seconds, each with a separate target set value. Optional alarm allows event triggering. Program end function allows repeat, stay at last segment set value, revert to SP1, or disable outputs
Accuracy: ±0.25% of span ±1 least significant digit
Resolution: 1 degree or 0.1 degree (sensor dependent), or 1 count
Line Voltage Stability: ±0.05% over supply range
Temperature Stability: 100 ppm/°C of selected range
Common Mode Rejection: 140 db minimum at 60 Hz
Normal Mode Rejection: 65 db typical, 60 db at 60 Hz
Isolation:
- Relay and ac SSR outputs,1500 Vac from all inputs and outputs
- SP1 and SP2 0 to 20 mA outputs, 500 Vac from all other inputs and outputs, but not isolated from each other
- 15 Vdc output, 500 Vac from all other inputs and outputs, but not isolated from each other
- 24 Vdc loop power, 500 Vac to all inputs and outputs
Power Consumption: 5 VA maximum
Supply Voltage: 100 to 240 Vac nominal, +10% - 15%, 50 to 400 Hz single phase; 132 to 240 Vdc +10% - 20%
Operating Temperature Range: -10 to 55°C (14 to 131°F)
Storage Temperature Range: -40 to 80°C (-40 to 176°F)
Humidity Range: 0 to 90% up to 40°C non-condensing, 10 to 50% at 55°C non-condensing
Memory Backup: Non-volatile memory
Control Output Ratings:
Relay: SPDT, 10 A at 240 Vac resistive, 1/2 hp @ 120 Vac,1/3 hp @ 240 Vac
ac SSR: 2.5 A at 240 Vac resistive at 25°C (77°F). De-rates to 1.25 A at 55°C (130°F)
dc Pulse: 15 Vdc at 20 mA
Proportional Current: 0 to 20 mA, 600V maximum
Alarm Relay: SPST, 3 A at 240 Vac resistive
Loop Power Supply: Isolated 24 Vdc @ 50 mA, regulated
Panel Cutout: 92 mm x 92 mm (3.625" x 3.625")
Depth Behind Mounting Surface: 103 mm (4.0")
Weight: 454 g (16 oz.)
| To Order (Specify Model Number) |
| Dual Output Fuzzy Logic Models |
| Model No. | Price | Output 1 | Output 2 |
| CN72(*)33 | $299 | Relay/ dc Pulse | Relay/ dc Pulse |
| CN72(*)11 | 299 | ac SSR/ dc Pulse | ac SSR/ dc Pulse |
| CN72(*)53 | 324 | 0 to 20 mA | Relay/ dc Pulse |
| CN72(*)55 | 349 | 0 to 20 mA | 0 to 20 mA |
*Specify 0 for std unit, 1 for alarm unit, for alarms, add $10 to price
Ordering Example: CN72133-4SP, controller with dual relay/dc pulse outputs, alarms, and
optional 4 stage remote setpoint, $299 +10 +39 = $348.
OPTIONS
| Ordering Suffix | Price | Description |
| -RSP1 | $50 | Remote analog setpoint, 0-20 mA |
| -RSP2 | 50 | Remote analog setpoint, 0-10 Vdc |
| -PV1 | 39 | Recorder output, isolated 0-20 mA |
| -PV2 | 39 | Recorder output, isolated 0-10 Vdc |
| -4SP | 39 | Four stage remote setpoint |
Only one option available per unit, except -4SP, which can be ordered with any other option
ACCESSORIES
| Model No. | Price | Description |
| 1821-101 | $8 | Noise suppression kit (120 Vac) |
| 1821-102 | 8 | Noise suppression kit (240 Vac) |
Analog Remote Setpoint (Optional):
Allows remote setting of setpoint 1 through an external analog signal of 0 to 10 Vdc,
0 to 20 mAdc, field scalable. Setpoint
reverts to internal value if signal is invalid.
Process or Setpoint Retransmission (optional): Provides a 0 to 10 Vdc or 0 to 20 mA (field scalable) to follow the process variable or the set variable (field selectable) over a user specified range.
4-Stage Setpoint (optional):
Allows remote selection of up to 4 preset
setpoint values via external switch closures.
Input Types and Ranges (Field Selectable)
| Input Type | Range |
| J | Iron-Constantan | -100 to 1600°F
-73 to 871°C |
| K | CHROMEGA®-
ALOMEGA® | -200 to 2500°F
-129 to 1371°C |
| T | Copper-
Constantan | -350 to 750°F
-212 to 398°C |
| E | CHROMEGA®-
Constantan | -100 to 1800°F
-73 to 982°C |
| J DIN | Iron-
Constantan (DIN) | -100 to 1600°F
-73 to 871°C |
| N | OMEGALLOY®
Nicrosil-Nisil | -100 to 2372°F
-73 to 1300°C |
| R | Pt/13%Rh-Pt | 0 to 3200°F
-17 to 1760°C |
| S | Pt/10%Rh-Pt | 0 to 3200°F
-17 to 1760°C |
| B | Pt/30%Rh-
Pt6%Rh | 75 to 3308°F
24 to 1820°C |
| RTD | 100 ohm Pt
0.00392 curve | -328 to 1607°F
-200 to 875°C |
100 ohm Pt
0.00385 curve | -328 to 1607°F
-200 to 875°C |
1000 ohm Pt
0.00385 curve | -328 to 1607°F
-200 to 875°C |
| 120 ohm Ni | -112 to 608°F
-80 to 320°C |
| Process Current | 0 to 20 mA | Ý |
| Process Voltage | 0 to 10 Vdc | Ý |
| mV Input | -10 to +10 mVdc | Ý |
†DC current and voltage inputs are scalable between -1999 and +9999 with a minimum of 100 counts.
U.S.A. and Canada
|
|
International Callers;
Sales & Service; 203.359.1660
|
|
Please E-Mail any comments
or suggestions to OMEGA®.
® COPYRIGHT 1999
OMEGA
ENGINEERING, INC.
ALL RIGHTS RESERVED |
|