CT485B Microprocessor-Based Temperature/Relative Humidity Recorder

• Available in Computer Room White or Charcoal Gray
• Versatile Remote Mounting Sensor
• Convenient Front Panel Programming
• 200 mm (8") Chart for 1, 7, or 32-Day Recording
• Fully Electronic Microprocessor Control
• Benchtop or Wall Mounted
• Alarm Contact Standard
• Not Recommended for Use in a Corrosive Environment

The new 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.

Flipping open a hinged front panel door permits access to the power switch and controlling functions of the recorder. The door comes with a locking mechanism. The user may select 1, 7 or 32 day operation, program the instrument to record in °C or °F, and access alarm and calibration controls or max/min functions.

A separate 3-position switch next to the digital display selects a °C,°F or %RH readout. The chart drive is stepper controlled for precision, and a unique magnetic retaining knob eliminates the possibility of paper tear.

Calibration of alarm models is digital, and a user may make calibration adjustments in the field using the convenient panel pushbuttons. An optional calibration lockout cover prevents unauthorized changing of calibration codes.A stabilizing arm provides added stability for benchtop use. The arm conveniently rotates under the unit for wall mounting. Recessed rear mounting slots and a wall template enable easy wall mounting. A decorative cover for the stabilizing arm is supplied for wall mount use. A standard 110 Vac power adaptor is supplied for continuous long-term operation, along with four D-cell batteries for backup power or field use. Each unit includes 6 feet of cable for remotely mounting the sensor. A sensor holder clip is provided.

Units come standard with two chart light bulbs. When using the ac power adaptor, these bulbs provide easy viewing of the chart in dimly lit conditions. A switch is provided to allow the chart lights to be turned on or off.

To Order (Specify Model Number)   Prices Shown in U.S. Dollars
Model Number	Price	Description
CT485B-110V-G-AL	$642	Gray, 110 Vac, with alarms and relay contacts
CT485B-110V-W-AL	650	White, 110 Vac, with alarms and relay contacts
CT485B-220V-G-AL*	662	Gray, 220 Vac, with alarms and relay contacts
CT485B-220V-W-AL*	670	White, 220 Vac, with alarms and relay contacts
*220V models are standard with label. Ordering Example: CT485-220V-W-AL CE approved white recorder with alarms and relay contacts, 220 V , with 120 double sided charts, $662. Extra charts CT485-CWC, package of 100 charts, 7 days, °C (celcius) temperature measurements, $19.

Charts Standard
Chart Paper (double-sided ­ available as
single package of 100 or 6 packages of 100 charts)


Model Number	Price	Description
CT485-CDF	$19.00	100 Charts, 1 day, °F
CT485-CDC	19.00	100 Charts, 1 day, °C
CT485-CWF	19.00	100 Charts, 7 day, °F
CT485-CWC	19.00	100 Charts, 7 day, °C
CT485-CMF	19.00	100 Charts, 32 day, °F
CT485-CMC	19.00	100 Charts, 32 day, °C
CT485-CSP	19.00	120 Charts, 20 of each style
CT485-CDF-6	87.50	600 Charts, 1 day, °F
CT485-CDC-6	87.50	600 Charts, 1 day, °C
CT485-CWF-6	87.50	600 Charts, 7 day, °F
CT485-CWC-6	87.50	600 Charts, 7 day, °C
CT485-CMF-6	87.50	600 Charts, 32 day, °F
CT485-CMC-6	87.50	600 Charts, 32 day, °C
Ordering Example: CT485-CWC-6 package of 600 charts, 7 days, with °C (celsius) temperature measurements, $87.50

Specialty Paper
(All double-sided, packages of 20 charts)

Model Number	Price	Description
CT485-MW(*)	$20	Museums/art galleries, 7 days (in °C or °F) 18.3 to 22.2 (65° to 72°F), 40 to 50% RH
CT485-MM(*)	20	Museums/art galleries, 32 days (in °C or °F 18.3 to 22.2 (65° to 72°F), 40 to 50% RH
CT485-HW(*)	20	Hospitals, 7 days (in °C or °F) 20 to 23.3 (68° to 74°F), 40 to 50% RH
CT485-HM(*)	20	Hospitals, 32 days (in °C or °F) 20 to 23.3 (68° to 74°F), 40 to 50% RH
CT485-LW(*)	20	Lab, clean rooms, 7 days (in °C or °F) 20° to 23.9°C (68° to 75°F), 40 to 55% RH
CT485-LM(*)	20	Lab, clean rooms, 32 days (in °C or °F) 20° to 23.9°C (68° to 75°F), 40 to 55% RH
CT485-PW(*)	20	Computer rooms/offices, 7 days (in °C or °F) 18.3° to 23.9°C (65° to 75°F), 45 to 60% RH
CT485-PM(*)	20	Computer rooms/offices, 32 days (in °C or °F) 18.3° to 23.9°C (65° to 75°F), 45 to 60% RH
*Insert C (for °C) or F (for °F) Ordering Example: CT485-MWC specialty paper for museums and art galleries, 7 days, with °C (celsius) temperature measurements, $20.

ACCESSORIES:

Model Number	Price	Description
CT485-CABLE-6W	$23.75	6 ft. (2 meter) remote sensor cable, white
CT485-CABLE-6G	23.75	6 ft. (2 meter) remote sensor cable, gray
CT485B-CAL-LABEL	5.00	Calibration lockout cover labels (sheet of 10)
CT485B-CLIP-KIT	25.00	Sensor clip kit
CT485-AMV-W	22.50	Analog voltage input adaptor (cable), white
CT485-AMV-G	22.50	Analog voltage input adaptor (cable), gray
CT485-PS	10.00	Pen set, red and blue, package of 1 each
CT485-PS-6	52.00	Pen set, red and blue, package of 6 each
CT485B-CAL-KIT	75.00	Calibration kit
CT485B-CAL-KIT-CE	75.00	Calibration kit

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U.S.A. and Canada International Callers; Sales & Service; 203.359.1660

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