1. Product Introduction 1-1 Features Humidity, Temperature and Dew Point measure ments 0.01 Resolution for Te mperature and RH measure ments Fast response ti me High level of accuracy Large LCD display Two year warranty 1-2 Applications ...
2. Safety Information Read the follow ing safety information carefull y before attempting to operate or serv ice the meter. Onl y qualified personnel should perform repairs or serv i c ing not cov ered in this manual. 2-1 Cautions! DO NOT submerge the products mentioned in this manual in w ater or any other ty pes of liquids.
5. Specifications Display 5 Digit LCD with bar graph indicator Unit of Measurement Humidity: %RH (Relative Humidity) Temperature: °C or °F Dew Point: °C or °F Temperature Compensation Automatic for humidity function Sampling Time of Data Logger Manual Pushing the data logger button once wil l save data one time Auto 1, 2, 10, 30, 60, 600, 1800, 3600 seconds...
4. Operation Instructions he H300 could take as long as ten minut e s for the display to completely“ settle” and display the actual temperature or relative humidity level if the meter is exposed to two vastly different environments. The sensors used to make the environmental measurements must have time to acclimate to the test environment.
4-2 Measuring Procedure The H300 default unit of measure is °C. To switch to °F see section 5-1. The sampling time default for data logging is set at 2 seconds. To change this sampling time see section 4-7. 4-3 Humidity & Temperature Measurement 1.
7. Press the “ REC Button” (4-4, Fig. 1 ) momentarily to start the dat a log function. The REC symbol will be displayed on the LCD. The data logger function can save up to 1000 val u es of measure (either Humidity &...
5. Advanced Measuring Procedures Note: Cancel any Hold or Record functions before trying to perf o rm and advanced measuring procedures. 1. Press and hold the “ SET Button” (4-6, Fig. 1) for about 3 seconds until the LCD displays “...
5-4 Clear Memory 1. Press and hold the “ Set Button” (4-6, Fig.1) for about 3 seconds. 2. The main LCD shoul d then displ a y1000. Now press the “ Enter Button” (4-4-, Fig. 1). 3. Press the “ Set Button” (4-6, Fig.1) three times and you will see the CLr marker in the bottom of the LCD.
7. Send Data from RS232 Socket 1. Cancel Hold and REC functions. 2. Press and hold the “ Send Button” (4-5, Fig. 1) for about 2 seconds. You will see 232 in the bottom of the LCD. 3. Press the “ Send Button” (4-5, Fi g . 1) and both the top and bottom display will begin to flash. At this ti me the data is bei n g sent out the “...
The 16 digit data stream will be displayed in the following format: D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1D0 Each digit indicates the following status: Start Word D12 & D11 Indicator for Displ a y °C = 01 °F = 02 % RH = 04...
“service/repair”. Return all merchandise to Anaheim Scientific w ith pre-paid shipping. The flat-rate repair charge for Non-Warranty Service does not include return shipping. Return shipping to locations in North A merican is included for Warranty Service only.
Anaheim Scientific distributor. Anaheim Scientific w ill, w ithout charge, repair or replace, at its option, defective product or component parts. Returned product must be accompanied by proof of the purchase date in the form of a sales receipt.
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