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1- or 2-Channel Circular
Recorders
CT5100 Series Circular Chart Recorders
measure and display up to two process
variables. Choose from a variety of
programmable inputs. All recorder and
alarm functions are easily configured
via front 3-key pad with self prompting
displays. Total panel depth of only
64 mm is required with only a 33 mm
protrusion from the front of the panel.
250 mm Chart
1- or 2-Pen Versions,
Thermocouple, RTD, dc
Current, or Voltage Input
Programmable Inputs
4-Digit 14 mm Display
Specifications
Inputs
Input Types/Range:
Thermocouple: J, K, T, R, S
RTD: 100 Ù Platinum, .00385 Ù/Ù/°C
Current dc: 0 to 20 mA, 4 to 20 mA.
Internal 4.7 ohm Shunt Resistor
Voltage dc: 0 to 25 mV, 0 to 50 mV, 10
to 50 mV, 0 to 5 V, 1 to 5 V
Impedance: >100 MÙ for TC and
mV inputs. 100 KÙ for 5 V inputs.
4.7 Ù for mA inputs
RTD Excitation Current:
150 microamps, typical
Input Scan Rate: 1 scan per second for
non-RTD inputs; 1 scan per 1.2 seconds
for RTD inputs
Input Correction:
Offset adjustment -999 to 999 units
Sensor Fault Detection:
Display goes to “SnSr” and pen goes
upscale if a sensor break is detected.
No sensor break can be detected for
zero-based Volt and Milliamp ranges.
Display goes to “Hi” 10% above span;
display goes to “Lo” 10% below span or
zero, whichever is higher
Input Performance
Under Reference Condition:
Measurement Error:
Type J, K, T, R, S and RTD: ±0.25% of
span ±1 degree mA, mV and Vdc:
±0.25% of scaled span plus 1 least
significant digit
Cold Junction Compensation Error:
±0.2°C @ 25°C (±.36°F @ 75°F)
Cold Junction Compensation
Rejection: 0.04°/°C deviation
from 25°C (0.07°/°F from 75°F)
Linearisation Error: TC’s: ±0.25°C
(.45°F) typical, ±0.5°C (10.9°F) worst
case RTD’s: ±0.1°C (0.18°F) typical,
±0.3°C (0.54°F) worst case
Ambient Temperature Error:
±0.01% of span per °C (1.8°F)
deviation from 25°C (75°F)
Common Mode Rejection:
>120 db @ 50/60 Hz, 260 Vac max.
Normal Mode Rejection:
85 db minimum @ 60 Hz or greater
Isolation: 350 Vac, 500 Vdc. Inputs
share a common signal ground
Reference Conditions
Ambient Temperature: 25°C (75°F)
Relative Humidity: 60 to 70%
Source Resistance:
<10 Ù for TC input
Lead Resistance:
<0.1 ohm/lead balanced (Pt100)
Recording
Pen Type: Disposable fibre tip
Pen Colour:
Pen 1-red; Pen 2 -green
Chart Size: 254 mm (10 in) diameter
Chart Drive: Stepper motor
Chart Rotation:
User configurable: 8 hours, 12
hours, 24 hours, 48 hours or 7 days
Chart Span: Bottom and top of
span, -9999 to 9999 units
Recording Performance
Chart Recording Accuracy:
0.5% of chart span reference accuracy
Chart Rotation Accuracy:
±0.5% of rotation time, assuming
all backlash removed
Operator Interface
Display: Four-digit, 14 mm (0.56")
high, red, seven-segment,
LED display
Status Indicators:
Five red LED alarm status indicators,
one green LED pen 2 indicator
OOC
CC O
C RE
SM
arranty
Programme
Model CT5100-CE
£555 Basic Unit
R-57 www.omega.co.uk +44 (0)161 777 6611
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