Omega Products CT8100 User Manual

1- or 2-Channel Circular

Extended Warranty

Program

SM

Recorder/Controllers

CT8100

Starts at

$

1328

⻬ 305 mm (12") Chart
⻬ 1- or 2-Pen Versions
⻬ Programmable Inputs:

Thermocouple, RTD,
DC Current or Voltage

⻬ Control Outputs
⻬ 4-Digit, 14 mm (0.56") High

Display per Pen

The CT8000 Series circular chart
recorder/controllers measure, display,
and control up to 2 process variables.
Choose from a variety of
programmable inputs. All recorder,
control, and alarm functions are easily
configured via the front keypad.
The user can choose 1 of 2 alarm
settings for each pen. RS485
communications and NEMA 4X (IP66)
are also available. Control outputs
include SSR driver, 4 to 20 mA, and
relays. With the 4 to 20 mA option, the
user can retransmit the process value.

Specifications

Inputs

Input Types/Range:

Thermocouple: J, K, T, R, S, E, B, N, C
RTD: 100 Ω Platinum, 0.00385 Ω/ Ω/°C

DC Current: 0 to 20 mA, 4 to 20 mA.

external shunt resistor, 2.5 Ω or 250 Ω
(not included)
DC Voltage: 0 to 25 mV, 0 to 50 mV,
10 to 50 mV, 0 to 5 V, 1 to 5 V

Impedance: >100 MΩ for T/C and mV
inputs; 100 kΩ for 5 V inputs; 2.5 Ω or
250 Ω for mA inputs

RTD Excitation Current:

330 µA, typical

Input Scan Rate: 1 scan per second
Input Correction:

Offset adjustment -999 to 999 units

Remote Setpoint: 0 to 5 V, 1 to 5 V
Sensor Fault Detection:

Sensor break on all T/Cs,
RTDs, 1 V, 1 to 5 V, 4 to 20 mA, and
millivolt inputs. No sensor break can
be detected for zero-based volt and milliamp
ranges. Display goes to
“SnSr” and pen goes up-scale if a
sensor break is detected.
Display goes to “Hi” 5% above span;
display goes to “Lo” 5% below scan.

Transmitter Power Supplies:

One isolated 50 mA @ 24 Vdc
supply available

OMEGACARE

extended warranty

program is

available for

models shown on

this page. Ask

your sales

representative for

full details when

placing

an order.

OMEGACARE

covers parts, labor

and equivalent

loaners.

CT8110, $1696,
shown smaller
than actual size.

SM

SM

Input Performance

Performance Under
Reference Conditions:
Measurement Error:

Type J, K, T, E, N, C T/Cs and RTDs:

±0.25% of span ±1 degree.
Type R, S, B, C T/Cs: ±0.25% of span
@ 25°C (77°F) mVdc and Vdc; ±0.25%
of scaled span plus 1 least-significant digit

Cold-Junction
Compensation Error:

±0.2°C (0.36°F) @ 25°C (77°F)

Cold-Junction
Compensation Rejection:

0.04°/°C (0.07°/°F) deviation
from 25°C (77°F)

Linearization Error:

T/Cs: ±0.25°C (0.45°F) typical,

±0.5°C (0.9°F) worst case
RTDs: ±0.1°C (0.18°F) typical,
±0.3°C (54°F) worst case

Ambient Temperature Error:

±0.01% of span per °C (1.8°F)
deviation from 25°C (77°F)

Common-Mode Rejection:

90 dB minimum; 24 Vac maximum for
RTD input; 115 Vac maximum all others

Normal-Mode Rejection:

85 dB minimum @ 60 Hz or greater

Isolation:

RTD inputs 24 Vac; all other inputs
115 Vac; inputs share a common
signal ground

Reference Conditions

Ambient Temperature: 25°C (77°F)
Relative Humidity: 60 to 70%

S-37

Recording

Pen Type: Disposable fiber tip
Pen Color: Pen 1–red; pen 2–green
Chart Size: 305 mm (12")
Chart Drive: Stepper motor
Chart Rotation: User configurable:

0.1 to 999 hours in 0.1-hour increments
Chart Span: Bottom and top of span,

-9999 to 9999 units
Filtering: 1 to 20 scans averaging
(affects display and recording)

Recording Performance

Chart Resolution Accuracy:

0.5% of chart span reference accuracy

Resolution: 0.15% of chart span
Deadband: 0.3% of chart span
Response Time:

20 seconds for full scale travel

Chart Rotation Accuracy:

±0.5% of rotation time, assuming all
backlash removed

Operator Interface

Display: 4-digit, 0.56" (14 mm) high,

red, 7-segment, LED display

Resolution:

T/C and RTD: 0.1 and 1°
mV, V and mA: 0.001, 0.01, 0.1 and 1 unit

Status Indicators:

Recorders: ALRM1 and ALRM2; red LEDs.

Controllers: MAN, OUT1, OUT2, ALRM;

yellow and red LEDs

Keypad: 3 keys for programming and unit
operation; 1 or 2 auto/manual keys on
controllers

Display Modes:

Recorders: Process value(s)
Controllers: Process value(s) or

deviation(s), with or without setpoint
sequentially

Alarms

Number: Up to 2 process alarms for each of

2 inputs

Type:

Recorder: Process high or low.
Controllers: Process, deviation, or band

Hysteresis: Fully adjustable,

0 to 300 units, straddles alarm point
Security: Alarm setpoint changes can be
prohibited
Sensor Fault Action: Alarms work normally
in “HI” and “LO” conditions; alarm relays are
de-energized in a “SnSr” sensor break
condition

ON/OFF Outputs

On/Off Outputs:

Assignable to alarm or control outputs
Relays: SPDT; contacts rated 5 A resistive
@ 115 Vac, 2.5 A resistive @ 230 Vac,
at 230 Vac (single phase), 250 VA @
115/230 Vac

Solid State Relay Driver:

Open-collector output; can provide
40 mA at 3 Vdc or 20 mA at 4 Vdc;
short circuit current is limited to 100 mA

Current Output
Drivers: Assignable to process value or

setpoint retransmission or control outputs

1

⁄8 hp

Output Span:

0 to 20 mA or 4 to 20 mA, nominal
Resolution: 0.02% of 20 mA;
12 bits over a 0 to 25.6 mA span
Accuracy: ±0.1% to 20 mA
span reference accuracy

Compliance: 650 Ω load

Power Requirements

Line Voltage: 115/230 Vac, ±10%,

50/60 Hz (230 Vac is optional)

Power Consumption: 25 VA max

Construction

Enclosure: Gasketed cover, case and

windows; structural foam case and cover
with plastic or glass window area; door lock
available

NEMA Rating: NEMA 3 (IP54) standard
Conduit Openings: 4 openings

standard, 2 additional as required

Mounting:

Panel or wall, or optional pipe mounting

Overall Dimensions:

358.65 W x 425.96 H x 196.85 mm D
(14.12 x 16.77 x 7.75")
Panel Cutout: 322.58 W x 322.58 mm H
(12.7 x 12.7")

Panel Depth: 133.35 mm (5.25")
Panel Protrusion: 63.5 mm (2.5")
Weight: 9 kg (20 lb) max

Environmental and Operating
Conditions

Operating Temperature:

0 to 55°C (32 to 131°F)

Storage Temperature:

-40 to 65°C (-4 to 149°F)

Humidity:

10 to 90% RH, non-condensing

Digital Communications

Communications Port: RS485 serial

communications, half-duplex
Bit Rate: 9600, 4800, 2400,
1200, 600, 300 baud

Configuration:

Monitor: Read only.
Normal: Read and write
Address: User configurable;

0 to 99 for each pen

General Reference Data

Data Backup:

Battery-backed SRAM for all data

Battery Backup:

5 years minimum life, 10 years typically

Approvals and Compliance

Safety: UL approved for USA: UL 1092,

UL 916 and QUXY, pending, UL certified for
Canada: CSA Spec 142, pending

Thermocouple Ranges

Sensor Type Sensor Specs Code Reference Range °C Reference Range °F

Iron-constantan J 0 to 760 0 to 1400
CHROMEGA®-ALOMEGA
Copper-constantan T -200 to 400 -330 to 750
Platinum 13% rhodium-platinum R 200 to 1650 400 to 3000

TC

RTD 100 Ω 0.00.385 Pt100 -140 to 400 -220 to 750

Platinum 10% rhodium-platinum S 200 to 1650 400 to 3000
CHROMEGA®-constantan E 0 to 750 0 to 1400
Platinum 30% rhodium-

platinum 6% rhodium B 200 to 1800 400 to 3300
OMEGA-P®-OMEGA-N®(nicrosil-nisil) N 0 to 1300 0 to 2370
Tungsten 5% rhenium-tungsten C 200 to 2300 390 to 4170

26% rhenium Pt100

®

K 0 to 1360 0 to 2500

MOST POPULAR MODELS HIGHLIGHTED!

To Order (Specify Model Number)

Model No. Price Description

CT8100 $1328 1-pen circular recorder
CT8101 1375 1-pen circular recorder with 1 relay
CT8100-MA1 1453 1-pen circular recorder with one 4 to 20 mA output
CT8110 1696 2-pen circular recorder
CT8112 1722 2-pen circular recorder with 2 relays
CT8201 1588 1-pen circular recorder/controller with 1 relay
CT8202 1637 1-pen circular recorder/controller with 2 relays
CT8200-D1 1583 1-pen circular recorder/controller with 1 SSR driver
CT8200-MA1 1669 1-pen circular recorder/controller with one 4 to 20 mA output
CT8222 2211 2-pen circular recorder/controller with 2 relays
CT8220-D2 2201 2-pen circular recorder/controller with 2 SSR drivers
CT8220-MA2 2329 2-pen circular recorder/controller with two 4 to 20 mA outputs

Comes complete with package of charts, 1 pen per channel and operator’s manual.
For RS485 communications, add suffix “-RST” to model number and add $200
to price. For 230 Vac option, add suffix “-230V” to model number and add $65 to price.
For glass window NEMA 4X, add suffix “-4X” to model number and add $150 to price.
For transmitter power supply, add “-XPS” to model number and add $125 to price.

Ordering Examples: CT8100, 1-pen circular recorder, CT8000C-0-100/24,
100 sheets of chart paper, $1328 + 25 = $1353. OCW-1, OMEGACARESMextends
standard 2-year warranty to a total of 3 years ($132), $1328 + 132 = $1460.

CT8112, 2-pen circular recorder with 2 relays, $1722.

Remember to

Order Extra

Paper and Pens!

Accessories

Model No. Price Description

CT7000-GREEN $25 Green pens, pkg. of 5
CT7000-RED
CT8000C-0-100/24 25 Circular paper, 100 qty.

CT8000C-0-100/7 30 Circular paper, 100 qty.

CT8000C-0-300/24 21 Circular paper, 100 qty.

CT8000C-0-300/7 21 Circular paper, 100 qty.

CT8000C-0-800/24 21 Circular paper, 100 qty.

CT8000C-0-1000/24 32 Circular paper, 100 qty.

Other ranges available; consult factory for details.

Recommended Reference Book:

Assembly Automation and Product Design,

See Section Y For Additional Books

25 Red pens, pkg. of 5

24-hour

7-day

24-hour

7-day

24-hour

24-hour

MS-1301, $125

S

S-38