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The CT485B is NO LONGER AVAILABLE, Please review our LATEST CTXL SUPERECORDER™|
Measurement Inputs: Temperature and humidity, with plug-in external sensor, removable for remote location,
2 m (6') extension cable included; 0.02 to 1.20 Vdc signal with voltage input adaptor TEMPERATURE Range: -17 to 49°C (2 to 120°F) Accuracy: ±1°C Sensor: Solid state Response Time: 5 minutes for 63% step change Display Resolution: 1°C/1°F, backlit LCD HUMIDITY Range: 2 to 98% RH Accuracy: ±3% @25°C, between 20 and 90% of range (±5% below 20% and above 90% @25°C) Sensor: Resistive polymer. Not recommended for use in corrosive air environments Response Time: 5 minutes for a 30 to 80% step change Display Resolution: 1% RH 21/2 digit LCD, backlit, 12.7 mm (0.5") high; low battery Display Modes: Front panel switchable between °C, °F and %RH for continuous digital display; max/min storage for both temperature and humidity or flashing to indicate alarm condition ELECTRONICS Type: Microprocessor-controlled and linearized high and low peak hold for both temperature and humidity, re-initializes position at every chart change CHART Type: 203 mm (8") circular, linear radial divisions, double sided; 1, 7 and 32 days, °C and °F scales CHART DRIVE Type: Stepper motor Ranges: 1, 7 and 32 day, selectable Accuracy: 1% of rotation Chart Hold Down: magnetic hub lock RECORDING PENS Type: Disposable fiber tip, red for temperature, blue for humidity PEN DRIVES Type: Motorized linear screw drive Deadband: 1°F, 1% RH Zero: Automatic zero during chart change or power interruption Penlift: Automatic on door opening; pens are door mounted and swing clear of the chart when door opens Pen Arms: Clear plastic to allow full chart viewing |
OPERATING CONDITIONS (RECORDER) Temperature: 0 to 49°C (32 to 120°F) Humidity: 0 to 90% RH, non-condensing OPERATING CONDITIONS (SENSOR REMOTE) Sensors not recommended for use in a corrosive environment Temperature: -17 to 49°C (2 to 120°F) Humidity: 0 to 98% RH ALARMS Alarms: User-selectable for high or low temperature and humidity Audible Alarm: Integral piezoelectric beeper Alarm Relay Contacts: 1 Amp, 30 Vdc normally open, single pole, single throw (SPST) Power (Recorder): Four D cells batteries (included) and 9 Vdc/110, 50/60 Hz power adaptor (supplied); 220 Vac power adaptor supplied where applicable Battery Life: more than 1 month continuous operation in 32-day mode (average conditions) Power Requirements: 300 mA “normal” during pen movement for battery (dc) power; 500 mA “normal” during pen movement for ac power using ac adaptor with chart lights on Note:the light bulbs drain 200 mA of current DC Power Jack Voltage: 8.3 to 12.4 Vdc (nominal 9 Vdc), 1 Amp max. MECHANICAL Dimensions: 33.5 H x 27.1 W x 6.7 cm D (133/16 x 1011/16 x 25/8") Weight: Approx. 3.2 kg (7 lb) including batteries Mounting: “Keyhole” slots for wall mounting; foot cover for benchtop use Case: Rugged ABS plastic ANALOG VOLTAGE INPUT ADAPTOR Input: 20 mVdc to 1200 mVdc records as -17 to 49°C, (2 to 120°F) input protection up to 20 Vdc or 10 Vac RMS Input Impedance: 330 Kohms min. Input Connections: Banana jacks, 19 mm (0.75") spacing Cable Length: 305 mm (12") |
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