Page 1
Circular Recorders
CT7000 Series
U 1- or 2-Pen Versions
U 254 mm (10") Chart
U Accepts Thermocouple,
RTD, V, mV, or mA Signals
U Programmable Inputs,
Speed, and Alarms
U 4-Digit Display per Pen
U 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,
GTQSS-316G-12
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
S-35
Page 2
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:
Transmitter Power Supply:
Provides up to 40 mA at 24 Vdc
ESD: No effect from 5000 V static
charge over surface area
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
Extended Warranty
Program
OMEGACARESM extended
SM
warranty program is available for
models shown on this page. Ask
your sales representative for full
details when placing an order.
OMEGACARE
labor and equivalent loaners.
SM
covers parts,
To Order
Model No. Description
CT7100 Recorder, circular, 1 pen
CT7110 Recorder, circular, 2 pens
CT7102 Recorder, 1 pen, 2 relays
CT7102-XPS Recorder, 1 pen, 2 relays, transmitter power supply
CT7114 Recorder, 2 pens, 4 relays
CT7202 Recorder, control, 1 pen, 2 relays
CT7224 Recorder, control, 2 pens, 4 relays
Comes complete with operator’s manual, pens and 100 charts. OMEGACARESM extended
warranty program is available for models shown on this page. Ask your sales representative
for full details when placing an order.
Accessories
Model No. Description
CT7000-GREEN Pens, green, package of 5, channel 2 only
CT7000-RED Pens, red, package of 5, channel 1 only
CT7000C-0-100/24 Paper, circular, 100 qty
CT7000C- (range/time*) 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.
Ordering Examples: CT7110, 2-pen circular recorder, CT7000-RED, CT7000-GREEN, spare
pens, CT7000C-0-100/24, spare paper, and CT7202, recorder control, 1 pen, 2 relays.
OCW-1, OMEGACARESM extends standard 2-year warranty to a total of 3 years.
S
S-36
Loading...