Datalogging Hot Wire CFM Anemometer 840002 Instruction Manual SPER SCIENTIFIC LTD.
TABLE OF CONTENTS 1. INTRODUCTION ............................................................................ 3 2. PANEL DESCRIPTION................................................................... 4-5 3. MEASURING PROCEDURE .......................................................... 5 3-A Air Velocity and Ambient Temp. Measurement ....................... 5 3-B Air Flow Measurement (CMM/CMF)........................................ 5 3-C Zero Setting.........................................................
1. INTRODUCTION Automatically records up to 16,000 (!) data points in the field along with time and date. These can later be downloaded to a computer via the meter’s RS232 port and the results viewed instantly on software which comes with the unit. The software also enables real time data logging directly from the meter to the computer.
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20 21 22 19 PROBE PLUG 20 SENSOR HEAD 21 RETRACTABLE SENSOR COVER 22 TELESCOPING PROBE HANDLE 19 CAUTION: When the probe is not in use, always protect the SENSOR HEAD (20) with the RETRACTABLE SENSOR COVER (21). Never touch or insert anything into the SENSOR HEAD (20). Doing so will void the warranty and may cause permanent damage to the probe. 3.
3-C. • • Zero Setting Slide the RETRACTABLE SENSOR COVER (21) up over the SENSOR HEAD (20) Press the ▲UP (5) for about 2 seconds, or until the air velocity value equals zero. 3-D. Type K, J Thermometer Measurement • Unlock and remove the anemometer sensor from the meter and slide the PROBE LOCK SWITCH (18) to the ◄LOCK position. • Insert the thermocouple probe in the TYPE K/J PROBE INPUT (16). • Turn on the meter by pressing the POWER (2) button.
a. Auto Data Logger (sampling time can be set for 2 seconds to 8 hours, 59 minutes, 59 seconds): • Press the LOGGER (8) button once, "REC DATA" is displayed and "Recording. . . ." flashes at each preset interval. • Press the LOGGER (8) button again to exit. "REC" is still displayed, but "DATA" is no longer shown. • To resume data logging, simply press the LOGGER button (8) again. • To exit the "REC" function, press and hold the REC button (4) for at least 2 seconds. b.
year, month, date, hours, minutes and seconds. • Press the ENTER (4) button to save the settings. • Press the SET (8) button to advance to the next option, or press the ESC (3) button to exit. 4-D. Sample Time Setting 00:00:02 Sample Time h-m-s ^, v ENTER(→) • Press the SET (8) button as needed to reach the "sample time" screen. • Use the ▲ (5), ▼ (6), and ENTER (4) buttons to select the sample time (hour-min-sec). • Press the ENTER (4) button to save the settings.
4-H. Air Flow Unit Default Setting • • • • 1 = CFM Press the SET (8) button as needed to reach the "CFM/CMM" 0 = CMM screen. Use the ▲UP (5) and ▼ DOWN (6) buttons to switch between CMM (cubic meter per minute) and CFM (cubic feet per minute). Press the ENTER (4) button to save the settings. Press the SET (8) button to advance to the next option, or press the ESC (3) button to exit. 4-I. Area Size (Air Flow) Default Setting • Press the SET (8) button as needed to reach the "area:meter^2" screen.
The meter can record up to 16,000 data points, stored in a maximum of 250 memory blocks. All data points saved during one data logging session are stored in one memory block. Block 1 Block 2 Data 1 To Data X Data X+1 To Data Y ……… ……… Block 250 Data Z To Data 16,000 • Use the ▲UP (5) and ▼ DOWN (6) buttons to select the desired memory block number (1 to 250) and push the SEND (7) button once. • The bottom right of the display shows "Sending Data!".
D13 The upper display data = 1, The lower display data = 2 D14 4 D15 Start Word = 02 RS232 Com Port Setting: 9600, No parity, 8 Data bits, 1 Stop bit 7. BATTERY REPLACEMENT When the left corner of the LCD displays the low battery icon install 4 new AA 1.5V batteries. Slide the BATTERY COVER (10) away from the instrument to remove the old batteries. When the clock is no longer accurate, replace the 3V button cell battery located in the compartment behind the AA's.
11. SPECIFICATIONS Air Volume CMM (m3/min) CFM (ft3/min) Air Velocity M/s Km/h Mile/h Knots Ft/min Air Temp. Temp ºC Temp ºF Thermocouple Range Res. Accuracy 0.001 ~ 30.0 0 ~ 36,000 0.001 ~ 1 0 ~ 1,271,200 0.01 ~ 100 0.01 ~ 322.91 Range Res. Accuracy 0.2 ~ 20.0 0.7 ~ 72.0 0.1 ±(2%+ 0.2d) 0.5 ~ 44.7 0.4 ~ 38.8 40 ~ 3940 1 ±(2%+ 20 ft/min) Range Res. Accuracy 0 ~ 50ºC 0.8ºC 0.1º 32 ~ 122ºF 1.5ºF Range Res. Accuracy -58~2372ºF ±(0.2% + 1ºF) Type K -50~1300ºC ±(0.2% + 0.5ºC) 0.1º -58~2012ºF ±(0.2% + 1.
