Omega Products CT7100 User Manual

S-35

Circular Recorders

CT7000 Series

Starts at

1132

⻬ 1- or 2-Pen Versions ⻬ 254 mm (10") Chart ⻬ Accepts Thermocouple,

RTD, V, mV, or mA Signals

⻬ Programmable Inputs,

Speed, and Alarms

⻬ 4-Digit Display per Pen ⻬ Isolated Inputs

The CT7000 microprocessor-based circular chart recorder measures, displays, records, and controls up to 2 process variables from a variety of inputs. Record and control functions, alarm settings, and other parameters are easily configured via the 3 front keys. The CT7000 offers a 254 mm (10") circular chart and 4-digit LED display(s). Display resolution and filters are user configurable.

Each pen has 2 alarm settings. Alarms are user configurable as process high or low, deviation from setpoint (above or below), or deviation band (open or closed within band). Alarm hysteresis adjustment is also user configurable. Optional control capability includes on/off and PID control. Output type selections include SPST relay, SSR driver, and 4 to 20 mA DC (user configurable to 0 to 20 mA DC). Also, 4 to 20 mA DC outputs may be used for retransmitting the process value. Digital communications is optional.

Specifications

Input Ranges Thermocouple:

J: 0 to 760°C (0 to 1400°F) K: 0 to 1360°C (0 to 2500°F) T: -220 to 400°C (-330 to 750°F) E: 0 to 750°C (0 to 1400°F) N: 0 to 1300°C (0 to 2370°F) R: 200 to 1650°C (400 to 3000°F) S: 200 to 1650°C (400 to 3000°F) B: 200 to 1800°C (400 to 3300°F) C: 200 to 2300°C (390 to 4170°F)

RTD:

100 Ω (0.00385 Ω/Ω/°C),

-140 to 400°C (-220 to 750°F) Volts DC: 0 to 25 mV, 0 to 50 mV,

10 to 50 mV, 0 to 5 V, 1 to 5 V

Milliamps: 4 to 20 mA DC (via appropriate external shunt resistor)

Performance Measurement Error Limit Thermocouple Types J, K, T, E, N

and RTD: ±0.25% of reading + 1°

@ 25°C (77°F)

Type R, S, B, C Thermocouples:

±0.25% of span @ 25°C (77°F) mVdc and Vdc: ±0.25% of scaled

span plus 1 least-significant digit

Ambient Temperature Error Limit:

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

Process Value Output Error Limit:

±0.5% of span Record Error Limit: ±0.5%

of chart span or better, typically; ±1.0% of chart span maximum

Display/Record Filter:

1 to 20 scans averaging

Pen Resolution:

0.15% of chart span

Recording Deadband:

0.3% of chart span

Low-noise thermocouple

probes sold separately,

GKQSS-316G-12, $28,

GTQSS-316G-12, $28,

see section A.

Process Filter:

1 to 20 scans averaging

Pen Response (Full Scale Deflection): 20 s

Display Resolution

T/C and RTD: 0.1 or 1° mVdc and Vdc: 0.001,

0.01, 0.1 or 1

Calibration Drift:

Self-compensating for ambient temperature; all calibration values are stored in memory

Sensor Fault Detection: Displays “Hi” or “Lo” process input (10% above or below range) and sensor break “SnSr”; pen action on error condition is user configurable to 0 or 100% of chart span; on/off outputs go “off”; proportional outputs go to user-defined value from 0 to 100%

Record Chart: 254 mm (10") circular chart Chart Range: -9999 to 9999 Chart Drive: DC stepper motor

Extended Warranty

Program

S-36

Chart Rotation:

User configurable from 0.1 to

999.9 hours per revolution

Pen Type: Disposable fiber-tip Pen Color: Pen 1, red; pen 2, green

Display Digital Displays:

2 possible: 1 per installed pen; (4) 7-segment digits, 14 mm (0.56") high, red LEDs, automatic (-) positioning, decimal point positioning

Alarm Display:

2 alarm indications possible per pen; ALRM1 and ALRM2; red LEDs; single ALRM indication provided for controller pens

Status Display:

LED indicates Out 1, Out 2, Man, Ramp, Soak, Seg 1 through Seg 6, process units as applicable

Alarms: Process, deviation (with hysteresis), deviation band

Outputs (Optional) Relay: SPST, 115 Vac: 250 VA,

230 Vac: 250 VA SSR Driver: Open-collector output,

short circuit protected @ 100 mA maximum, provided 4 Vdc at 20 mA or 3 Vdc @ 40 mA

Current:

0 to 20 or 4 to 20 mA DC into 650 Ω max (control or process value)

Control Parameters Proportional Band Output:

1 to 3000 units

Manual Reset (Integral):

-1500 to 1500 units

Auto Reset (Integral):

0 to 100 repeats/min

Rate (Derivative): 0 to 10 min Cycle Time Output: 1 to 240 s

Physical Dimensions: 335 H x 384 W x

92 mm D (13.2 x 15.1 x 3.6")

Panel Cutout:

321 H x 343 mm W (12.6 x 13.5")

Weight: 9.1 kg (20 lb), maximum Vibration: 0.5 to 100 Hz @ 0.2 g Keypad: Located on front cover,

tactile feedback membrane keys Enclosure: Gasketed cover;

black, structural foam

Windows: Plexiglass standard Memory Backup:

Battery, 5-year minimum life

Common-Mode Rejection:

90 dB minimum; 24 Vac maximum for RTD input; 15 Vac maximum for other inputs

Normal-Mode Rejection:

85 dB minimum @ 60 Hz or greater

Line Voltage:

115/230 Vac ±10%, 50/60 Hz

Power Consumption: 25 VA max Operating Temperature:

0 to 55°C (32 to 131°F)

Storage Temperature:

-40 to 65°C (-40 to 149°F)

Humidity:

0 to 90% RH, non-condensing

Transmitter Power Supply:

Provides up to 40 mA at 24 Vdc ESD: No effect from 5000 V static

charge over surface area

Accessories

To Order

(Specify Model Number)

Model No. Price Description

CT7100 $1132 Recorder, circular, 1 pen CT7110 1432 Recorder, circular, 2 pens CT7102 1217 Recorder, 1 pen, 2 relays CT7102-XPS 1332 Recorder, 1 pen, 2 relays, transmitter power supply CT7114 1603 Recorder, 2 pens, 4 relays CT7202 1521 Recorder, control, 1 pen, 2 relays CT7224 2165 Recorder, control, 2 pens, 4 relays

Model No. Price Description

CT7000-GREEN $25 Pens, green, package of 5, channel 2 only CT7000-RED 25 Pens, red, package of 5, channel 1 only CT7000C-0-100/24 21 Paper, circular, 100 qty CT7000C- (range/time*) 21 Paper, circular, 100 qty

Other standard ranges: 0-600/24, 0-400/24, 0-200/24, 30-230F/24, 0-100/7, 0-1000/24, 0-300/24, 0-300/7, 0-800/24, 0-2000/24, -50-50/7, 0-200/7, 0-2500/24, 0-1200/24, 60-180F/24, 0-14PH/24, -50-50/24.

Note: Recorder may be supplied with other configurations of options. For 230 Vac power option, add suffix “-230V” to model number and add $69 to price. Ordering Examples: CT7110, 2-pen circular recorder, CT7000-RED, CT7000-GREEN, spare

pens, CT7000C-0-100/24, spare paper, 1432 + 25 + 25 + 21 = $1503. CT7202, recorder control, 1 pen, 2 relays, $1521.

OCW-1, OMEGACARE

extends standard 2-year warranty to a total of 3 years ($150).

Comes complete with operator’s manual, pens and 100 charts. OMEGACARE

extended warranty program is available for models shown on this page. Ask your sales representative for full details when placing an order.