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Model
CR10 |
Circular Chart Recorder
Measures Temperature/Humidity/Dew Point |
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Microprocessor-based Model CR10 Circular Chart Recorder measures, indicates, and records temperature and humidity or temperature and dew point with high accuracy and superior resolution. Permanently record measurements on the 8" (20 cm) diameter chart paper in selectable 24-hour, 7-day, 14-day, or 31-day rotation periods.
Easily view current temperature/humidity or temperature/dew point measurements on the large LCD. Recall minimum and maximum values with the push of a button. Temperature ranges are user selectable in °F or °C for greater application flexibility.
Remote probe allows monitoring in critical or clean environments without intruding. Standard probe includes a 7" (17.8 cm) cable (optional 10' (3 m) extension cable is available).
Quickly change recording parameters via front keypad. Recorders are equipped with a locking door and keypad locking to prevent unauthorized setting changes.
Model CR10 Circular Chart Recorder includes a single point NIST traceable certificate of calibration, 100 sheets of chart paper, two pens, detachable foot stands, AC adapter, and instruction manual.
REPLACEMENT CHART PAPER
for 8" (20.3 cm) circular recorders in various temperature ranges are offered below. Each pack contains 100 sheets.
PHYSICAL DATA
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Accuracy:
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Temperature: ±1.8°F (±1°C), Humidity: ±2% from 0 to 60% RH, ±3% from 61 to 95% RH, Dew Point: ±3.6°F (±2°C).
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Temperature Ranges:
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-20 to 120°F, 40 to 110°F, -20 to 50°C, 5 to 40°C (selectable).
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Humidity Range:
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0 to 95% RH (noncondensing).
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Dew Point Range:
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-20 to 120°F, -30 to 50°C.
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Recording Times:
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1, 7, 14, and 31 day (selectable).
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Average Response Time:
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Temperature: 30 seconds for 63% step change @ 1 cfm airflow, Humidity: 20 seconds for 63% step change @ 1cfm.
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Chart Size:
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8" (20.3 cm) diameter.
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Display Resolution:
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1°F (1°C), 1% RH.
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Sensors:
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Temperature: thermistor, Humidity: thin film capacitor.
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Calibration:
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User calibration of zero.
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Alarms:
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Audio/visual high and low.
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Probe:
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7/8" diameter, 5 7/8" (15 cm) length.
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Cable:
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7" (17.8 cm) cable (standard).
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Ambient Operating Temperature:
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32 to 122°F (o to 50°C), 0 to 90% RH.
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Power Supply:
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120 VAC adapter (included) or four "D" batteries (response time is slower when using battery power source, batteries are suggested for back-up power).
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Average Battery Life:
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1 day rotation: 2 months, 7 day rotation: 3 months, 31 day rotation: 4 months.
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Mounting:
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Free standing with snap on feet or wall mountable.
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Dimensions:
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10 1/2"Hx13 7/8"Wx2 1/2"D (26.7x35.2x6.4 cm).
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Weight:
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7 lbs (3.2 kg).
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FACTORY STOCKED MODELS
MODEL
NUMBER |
TEMPERATURE
RANGE, ROTATION |
CR721
CR722
CR724
CR725
CR771
CR774
CR775
CR776 |
-20 TO 120, 24 Hour
0 to 250, 24 Hour
40 to 110°F, 0 to 100% RH, 24 Hour
-20 to 50°C, 0 to 100% RH, 24 Hour
-20 to 120, 7 Day
40 to 110°F, 0 to 100% RH, 7 Day
-20 to 50°C, 0 to 100% RH, 7 Day
0 to 100, 7 Day |
APPLICATIONS
Environmental monitoring and climate control of coolers, coating process environments, drying areas, clean rooms, critical document storage areas, test chambers, incubators, calibration areas, drug storage areas, office buildings, laboratories, or warehouse areas.
ACCESSORIES
No. CR810, 10' (3m) extension cable
No. CR820, Replacement pens (3 red & 3 blue)
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