Circular Chart Recorders

CT6100 Series
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The CT6100 Series microprocessor based circular chart recorders are available in 1-, 2-, or 3-channel variants. They combine the simplicity and clarity of pen drawing with the versatility of microprocessor control. Each channel is compatible with all industry-standard sensors and signals, including thermocouple types J, K, T, E, N, R, S, and B; Pt100 platinum RTDs; and 4 to 20 mA current loops.

Low and high measurement ranges are provided for each input type; separate range cards are not required. Multi-input versions feature optoelectronic isolation of the input stages to eliminate troublesome installation earth loops. Multislope integrating 16-bit A/D converters ensure precise measurement by sampling the input every 0.5 seconds. 

Thermocouple and RTD characteristics are fully linearised. The recorders use automatic cold-junction compensation for thermocouple measurement. 

All CT6100 Series models feature alarm relays. Single-pen recorders are equipped with 3 fail-safe single pole changeover relays; 6 relays are standard on the 2- and 3-pen versions. Colour-coded LEDs indicate the status of each relay. All relay functions are user selectable: setpoint values and hysteresis levels are entered directly via the keypad, while relay action and channel assignment are selected from user-friendly menus. Circuit precision is matched by the backlash-free pen-drive mechanism, which has a positioning resolution of better than 0.1%. An integral feedback potentiometer enables closed-loop monitoring of each pen position. 

Each recorder uses a low-maintenance stepper motor. The rotation speed of the 244 mm diameter chart is microprocessor controlled and user programmable. 

All CT6100 recorders are housed in a strong moulded case that can be panel or surface mounted. A gasket-lockable door protects internal components from harsh industrial environments and offers protection rated to IP55 (NEMA 12). A tough acrylic window lets the user view the chart trace, digital channel readings, and alarm status with the recorder’s door closed.

The CT6100 Series microprocessor based circular chart recorders are available in 1-, 2-, or 3-channel variants. They combine the simplicity and clarity of pen drawing with the versatility of microprocessor control. Each channel is compatible with all industry-standard sensors and signals, including thermocouple types J, K, T, E, N, R, S, and B; Pt100 platinum RTDs; and 4 to 20 mA current loops.

Low and high measurement ranges are provided for each input type; separate range cards are not required. Multi-input versions feature optoelectronic isolation of the input stages to eliminate troublesome installation earth loops. Multislope integrating 16-bit A/D converters ensure precise measurement by sampling the input every 0.5 seconds. 

Thermocouple and RTD characteristics are fully linearised. The recorders use automatic cold-junction compensation for thermocouple measurement. 

All CT6100 Series models feature alarm relays. Single-pen recorders are equipped with 3 fail-safe single pole changeover relays; 6 relays are standard on the 2- and 3-pen versions. Colour-coded LEDs indicate the status of each relay. All relay functions are user selectable: setpoint values and hysteresis levels are entered directly via the keypad, while relay action and channel assignment are selected from user-friendly menus. Circuit precision is matched by the backlash-free pen-drive mechanism, which has a positioning resolution of better than 0.1%. An integral feedback potentiometer enables closed-loop monitoring of each pen position. 

Each recorder uses a low-maintenance stepper motor. The rotation speed of the 244 mm diameter chart is microprocessor controlled and user programmable. 

All CT6100 recorders are housed in a strong moulded case that can be panel or surface mounted. A gasket-lockable door protects internal components from harsh industrial environments and offers protection rated to IP55 (NEMA 12). A tough acrylic window lets the user view the chart trace, digital channel readings, and alarm status with the recorder’s door closed.

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