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> New port CT485B temp/relative humidity chart recorder
New port CT485B temp/relative humidity chart recorder
This listing is for a chart recorder.
* Make: Newport Electronics / Omega
* Model / Part #: CT-485-B (CT485-B) (CT-485B) (CT485B)
* List Price: Approximately $650
* Description: Microprocessor-Based Temperature/Relative Humidity Circular Chart Recorder
The Model CT485B completely self-contained temperature/ relative humidity recorder is microprocessor based to accurately measure, indicate and record temperature and relative humidity.
This rugged unit comes standard with alarms. They contain a single, integral relay contact which closes in response to an alarm condition. Simultaneous high and low alarm points for temperature and relative humidity are user selectable. When the current conditions exceed any of the preset values, the 2 Amp relay contact closes and an audible alarm sounds. A power adaptor (115VAC or 230 VAC +/- 10% , 50/60 Hz) is supplied for continuous long-term operation, along with four D-cell batteries for backup power or field use.
* 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
* Range: -17 to 49 C (2 to 120 F)
* Response Time: 5 minutes for 63% step change
* Display Resolution: 1 C/1 F, backlit LCD
* 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
* Type: Microprocessor-controlled and linearized high and low peak hold for both temperature and humidity, re-initializes position at every chart change
* Type: 203 mm (8") circular, linear radial divisions, double sided; 1, 7 and 32 days, C and F scales
* Ranges: 1, 7 and 32 day, selectable
* Accuracy: 1% of rotation
* Chart Hold Down: magnetic hub lock
* Type: Disposable fiber tip, red for temperature, blue for humidity
* Type: Motorized linear screw drive
* 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)
* 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.
* 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
* 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")
Omega's product page is located at http:// /pptst/CT485B.html
This is used and in good condtition. Guaranteed to be in proper working order.
