Omega Products CN77333 User Manual

1

⁄16 DIN MICROMEGA

®

Autotune PID

Temperature/Process Controllers

Panel Punches

Available, Visit

omega.com/

CN77000 Series

U High Accuracy: ±0.5°C

(0.9°F), 0.03% Rdg

U High Quality Backed

by 5-Year Warranty

U Universal Inputs—

Process Voltage/Current,
Thermocouple, RTD

U Dual 4-Digit LED Display

and Indicators for Output
and Alarm Status

U Optional RS232 or

RS485, OMEGA

®

Protocol

U Relay, SSR, DC Pulse,

0 to 10 V, and 0 to 20 mA
Output Types

U Ramp-to-Setpoint Feature
U Universal Power Supply,

90 to 250 Vac or Vdc

U Dual Output and

Dual Alarm Capability

U Isolated Analog Output

or Remote Setpoint
Selection

Put a Square

Controller
in a Round

Hole!

CN77000 R300 and R500 controllers
shown with model RHS-43 hole saw
for easy-to-drill round holes. See
last page for ordering information.

CN77533 NEMA 4 square cutout.

The high-accuracy, high-quality
MICROMEGA® controllers offer
unparalleled flexibility in process
control. Each unit allows the
user to select the input type, from
10 thermocouple Types (J, K, T, E,
R, S, B, C, N, and J DIN), Pt RTDs
(100, 500, or 1000 Ω, with either
385 or 392 curve), or analog voltage
or current input. The voltage/
current inputs are fully scalable to
engineering units, with a selectable
decimal point, perfect for use with
pressure, flow, or other process inputs.

The MICROMEGA
a large, dual LED display, front-panel
configuration, selectable temperature/
process inputs, and universal power
supply that accepts 90 to 250 Vac or
Vdc. Available in single- and dual­output configurations, the CN77000

P-37

®

controller features

Shown actual size.

CN77333-A2 NEMA 12 style
square cutout.

Series is available with relay, SSR,
DC pulse, or analog voltage or current
outputs. A single alarm is standard.
Options include a second alarm,
RS232, RS485, analog output, and
remote setpoint selection.

The “300” Series controllers offer
many features of larger,
controllers in a compact, 1⁄16 DIN size.
These controllers feature a 1⁄16 DIN
cutout and bezel with a NEMA 12 (IP54)
rating, and dual LED displays, which
show different colors for the process
and setpoint values. Individual
indicators provide output and
alarm status.

The “500” features a

53.3 mm (2.1") square face with
NEMA 4 (IP65) rating, large dual LED
display, front-panel configuration,
and selectable temperature/process
inputs. Available in single- and
dual-output configurations, the
CN77500 is available with relay, SSR,
DC pulse, or analog voltage or current
outputs. A single alarm is standard.

The R300 and R500 controllers
feature a detachable display and
adaptor to allow mounting in a round,
44 mm (1.75") cutout. This feature
allows users to prepare the panel with
a standard round hole saw as well as
the conventional
2-piece design snaps together, for
quick, easy installation.

panelpunches

1

⁄4 DIN

1

⁄16 DIN cutout,

1

⁄16 DIN cutout.The

Specifications

Accuracy: ±0.5°C (0.9°F) temp;

0.03% rdg process

Resolution: 1°/0.1°; 10 µV process
Temperature Stability:

0.08°C/°C; 50 ppm/°C process

Thermocouple Cold-End Tracking:

0.05°C/°C

NMRR: 60 dB
CMRR: 120 dB
Common-Mode Voltage: 1500 V peak

test, 350 V per IEC spacing

A/D Conversion: Dual slope
Reading Rate: 3 samples/s
Digital Filter: Programmable
Display: Dual 4-digit, 7-segment LED,

9.2 mm (0.36"); red process variable,
green setpoint; indicators for output and
alarm status; 7.6 mm (0.3") for NEMA
12 (IP54) units

Warm-Up to Rated Accuracy: 30 min

Input

Input Types: Thermocouple, RTD,

analog voltage, analog current
Thermocouple Lead Resistance:
100 Ω maximum
RTD Input: 2-, 3- or 4-wire; 100,
500 and 1000 Ω; 0.00385 or

0.00392 Pt curve
Voltage Input:
0 to 100 mV, 0 to 1V, 0 to 10 Vdc

Current Input: 0 to 20 mA, 4 to 20 mA
Configuration: Single-ended
Polarity: Unipolar
Step Response: 0.7 s for 99.9%
Decimal Selection: None, 0.1 or 0.01
Span Adjustment:

0.001 to 9999 counts

Offset Adjustment: -9999 to 9999

Control

Action: Reverse (heat) or direct (cool)
Modes: Time proportioning and

proportional control modes; selectable
preset tune, autotune, PID, proportional,
proportional with integral, proportional
with derivative with anti-reset
windup, on/off

Rate: 0 to 999.9 s
Reset: 0 to 99 minutes, 59 seconds
Cycle Time: 1 to 199 seconds;

set to 0 for on/off operation
Gain: 0.5 to 100% of span;
setpoints 1 or 2

Damping: 1 to 8 in unit steps
Soak: 00.00 to 99.59 (HH.MM)
Ramp to Setpoint:

00.00 to 99.59 (HH.MM)

Autotune: For heating only
Break Protection:

Programmable up- or down-scale

Control Output

Relay: 5 A @ 120 Vac, 3 A @ 240 Vac;

configurable for on/off, PID or ramp and
soak; output 1: SPDT type; output 2:
SPST type
SSR: Rated 0.5 A @ 120/240 Vac,
continuous

DC Pulse: Non-isolated;
10 Vdc @ 20 mA

Analog Output: Non-isolated 0 to
10 Vdc or 0 to 20 mA; 500 Ω maximum

Options

Remote Setpoint Selection:

Up to 4 setpoints stored in memory;
contact closure selection

Analog Output: Isolated 0 to 10 Vdc or
0 to 20 mA, programmable

Communications

RS232 or RS485: OMEGA® protocol

300 to 19.2 Kb; complete programmable
setup capability; program to transmit
current display, alarm status, min/max,
actual measured input value and status

RS485: Addressable from 0 to 199
Connection: Screw terminals

Alarms

Type: SPST relay, 5 A @ 120 Vac,

3 A @ 240 Vac
Operation: High/low, latching/
non-latching and process/deviation;
front-panel configuration

Insulation

Power to Input or Output:

2500 Vac/Vdc, except alarm
2 option has only 1500 Vac/Vdc
between inputs 500 Vac/Vdc

SPC116-S splashproof
cover for 1⁄16 DIN
controller.

General

Power: 90 to 250 Vac/Vdc, 50 to 400 Hz
Operating Ambient: 0 to 55°C

(32 to 131°F), 90% RH non-condensing

Power Consumption:

6 VA maximum @ 120 Vac

Panel Cutout

CN77R000 Series:

44.5 mm (1.75") diameter round cutout
CN77300 and CN77500 Series:
45 mm (1.772") square,
Dimensions:
CN77R000 Series:
48 H x 48 W x 135 mm D
(1.89 x 1.89 x 5.32")
CN77300 Series:
48 H x 48 W x 123.3 mm D
(1.89 x 1.89 x 4.85")
CN77500 Series:
53 H x 53 W x 123.3 mm D
(2.1 x 2.1 x 4.85")

Weight: 227 g (0.5 lb)

TP4.

TP6.

1

⁄16 DIN

Trim plates for
mounting
controller in
existing

1

⁄8 DIN cutouts.

1

⁄16

1

⁄4 DIN or

Input Type Range Accuracy

Iron­ Constantan

CHROMEGA

®

- -270 to -160°C/-160 to 1372°C 1.0°C/0.4°C

-210 to 760°C/-346 to 1400°F 0.4°C/0.7°F

ALOMEGA® -454 to -256°F/-256 to 2502°F 1.8°F/0.7°F
Copper- -270 to -190°C/-190 to 400°C 1.0°C/0.4°C

Constantan -454 to -310°F/-310 to 752°F 1.8°F/0.7°F
CHROMEGA

®

- -270 to -220°C/-220 to 1000°C 1.0°C/0.4°C

Constantan -454 to -364°F/-364 to 1832°F 1.8°F/0.7°F

-58 to 104°F/104 to 3214°F 1.8°F/0.9°F

-58 to 212°F/212 to 3214°F 1.8°F/0.9°F

212 to 1184°F/1184 to 3308°F 1.8°F/0.9°F

-418 to -148°F/-148 to 2372°F 1.8°F/0.7°F

L

Pt/13%Rh-Pt

Pt/10%Rh-Pt

30%Rh-Pt/6%Rh-Pt

5%Re-W/26%Re-W

Nicrosil-Nisil

J DIN -200 to 900°C/-328 to 1652°F 0.4°C/0.7°F

-50 to 40°C/40 to 1768°C 1.0°C/0.5°C

-50 to 100°C/100 to 1768°C 1.0°C/0.5°C

100 to 640°C/640 to 1820°C 1.0°C/0.5°C

200 to 2320°C/400 to 4208°F 0.4°C/0.7°F

-250 to -100°C/-100 to 1300°C 1.0°C/0.4°C

Pt, 0.00385, 100Ω, 500Ω, 1000Ω -200 to 900°C/-328 to 1652°F 0.4°C/0.7°F
Pt, 0.00392, 100Ω, 500Ω, 1000Ω -200 to 850°C/-328 to 1562°F 0.4°C/0.7°F
Process voltage 0 to 100 mV, 0 to 1 V, 0 to 10 Vdc 0.03% rdg
Process current 0 to 20 mA, 4 to 20 mA 0.03% rdg

P

P-38