6 inch Circular Chart Recorder, Temperature, Humidity, Dewpoint, AC Power with 48 Hr. Back-Up

CTH89 Series

Circular Chart Recorder, Temperature, Humidity, Dewpoint,

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•	Advanced microprocessor Design for reliable operation
•	Backlit LCD alphanumeric display
•	All functions selectable from the front panel
•	Battery backup for operation during power failure
•	Alarm for over and under temperature or humidity
•	Selectable alarm delay
•	Audible and visual alarm indication
•	Probe is field replaceable and calibrated with no special equipment
•	Chart number displayed when time and temperature ranges are selected
•	Selectable single or continuous chart rotation
•	Low battery warning on display
•	Fold away carrying handle
•	Snap-on extra support legs
•	Remote sensor
•	Temperature/humidity or dewpoint/humidity recording
View related products - Relative Humidity Measurement Instruments

SPECIFICATIONS
With Combined 18 Speed and Temperature Ranges and 4.5 m (15') Remote Probe, 115 Vac with 48-Hour Battery Back-Up
Primary Power: 115 Vac, 50/60 Hz, 3.5 W max (220 to 240 Vac, 50/60 Hz optional)
Backup Power: 8 "AA" alkaline batteries (included) for 48 hours continuous operation
Temperature Accuracy: ±1°C (±2°F)
Relative Humidity Range: 0 to 100% (non-condensing)
Relative Humidity Accuracy: ±3%
Dewpoint Range: 0 to 50°C (32 to 120°F)
Dewpoint Accuracy: ±1°C (±2°F)
Probe: Combined temperature/ humidity with 4.5 m (15') cable (consult sales for longer cable, 7.6 m (25') max)
Chart: 152 mm (6") circular chart (supplied with 60 assorted charts)
Chart Rotation Speeds:User selectable: 7-day, 24-hr, 12-hr, 6-hr, 3-hr, and 1.5-hr
Chart Rotation: User selectable continuous or single turn
Chart Speed Accuracy: Better than 1%
Display: Alphanumeric backlit LCD, 16 characters x 2 lines
Temperature Alarm Range: -30 to 50°C (-20 to 120°F)
Relative Humidity Alarm Range: 0 to 100% RH
Alarm Delay Range: User selectable, no delay, 10-min, 30-min, 1-hr, and 2-hrs
Remote Alarm Connection: Normally open contacts 48 Vac/Vdc, 0.1 A resistive load
Mounting: Vertical or horizontal free standing or wall mount
Dimensions: 23.5 x 18.4 x 7.0 cm (9¼ x 7¼ x 2¾")
Operating Ambient Temp. Range: 0 to 49°C (32 to 120°F)
Weight: 20.1 kg (4 lb, 7 oz)

To Order (Specify Model Number)

What Other People Bought: When you see this icon, click on it to expand a list of products that other people have bought when they purchased this model.

Part Number	Availability	Price	Description	Qty.
CTH89		$505.00	6" Circular Chart Temperature/Humidity or Dewpoint/Humidity Recorder 110 Vac Operation	qty.

CTH89-220V		$515.00	6" Circular Chart Temperature/Humidity or Dewpoint/Humidity Recorder 220 To 240 Vac Operation	qty.


Accessories

CRT-110V-ADAPTOR		$19.00	110V AC ADAPT.CT82,CT87,CTH89	qty.

CRT-220V		$23.00	220V POWER ADAPTOR	qty.

CTH89-Pen-Red		$8.50	Replacement Red Pen (shelf life is one year)	qty.

CTH89-Pen-Blue		$8.50	Replacement Blue Pen (Humidity)(shelf life is one year)	qty.

CTH89-RP		$150.00	Replacement Probe with 6 Ft. Cable	qty.

CTH89C-MIX		$19.25	Mix Box of Assorted Charts (5 of each range)	qty.

MN1500		$1.75	AA Batteries (pack of 2)	qty.

† All dollar amounts on this site are shown in US currency.

Note: Each Unit comes with Red and Blue Pens, Box of 100 Assorted Charts, Probe with 15 Ft. Cable, AC Adapter and Instruction Manual.
Ordering Example: (1) CTH89-220V 6" Circular Chart Temperature/Humidity or Dewpoint/Humidity Recorder 220 To 240 Vac Operation, $515.00

Part Number Builder

	(1)	(2)
CTH89C-

Option Descriptions

(1)

Temperature Range

Select
E20120F for -20°F to +120°F
E2050F for -20°F to +50°F
E40110F for +40°F to +110°F
E3050C for -30°C to +50°C
E3010C for -30°C to +10°C
E545C for 5°C to +45°C

(2)

Recording Time

Select
12 for 12 Hours
24 for 24 Hours
7 for 7 Days

NOTE: All combinations may not be valid, check spec sheet for valid part numbers.

Keywords:6" Circular Chart Recorder, Temperature, Humidity, Dewpoint, AC Power with 48 Hr. Back-Up, Models CTH89 and CTH89-220V, HYDROTHERMOGRAPH, buttons and switches buttons switch capacitive level sensors thru beam sensors