Circular Chart Recorders

Dual Pen - CR4

The CR4 chart recorder offers dual pens, and 5 different input options.

They are particularly useful in experimental or test applications where temperature ranges and batch times vary.

Various sensor options are available, the CR4 will automatically recognise which type of sensor is attached and display the appropriate legends.

They are portable but can be wall mounted in more permanent applications.

They operate from a DC mains adapter, with optional back up via 8 x AA batteries.

General Technical Specification
Rotation Mode	Single Turn or Continuous
Chart Diameter	150mm
Digital Display	Backlit LCD 2 lines 16 Characters
Chart Speed Accuracy	+/- 1%
Pen Accuracy	+/- 1°C or +/- 1% (RH +/- 2.5%)
Alarm Contact	48Vac/dc 0.1A resistive
Alarm Delay	0,10,30,60 or 120 mins
Power Supply	12 Vdc / 240 Vac Mains Adapter

Chart Rotation	Temperature	Pressure	Event	Humidity
1.5 Hours	-30 to + 50 °C -20 °F to 120 °F	0 to 50 PSI	24 to 180 Vdc	0 to 100 %
3 Hours	-30 to + 10 °C -20 °F to 50 °F	0 to 150 PSI	24 to 270 Vac
6 Hours	+5 to + 45 °C -40 °F to 110 °F	0 to 500 PSI
24 Hours
7 Day
31 Day

Sensor Sets
KTH	Combined Temperature and Humidity
KTT	Dual Temperature Sensors
KTP	Temperature and Threaded Pressure Adapter
KPP	Dual threaded pressure adapters
KTE	Temperature and Event Adapter