mindwalker 2A Meter User Manual Quick Start Guide
Contents
1. just when a needle SET occurs It will however only accumulate counts when the TA changes by 0 1 divisions or more so small changes will be disregarded See instructions for Setup Mode on how to enable this feature LED The LED can display red green or blue See relevant sections in this document for the meaning of these LED colours Note that the brightness of each colour can be adjusted see Setup Mode Body Motion Detector Unnaturally sharp changes in the needle motion are detected as body motion This is indicated by the blue LED This feature is useful on automatic SET meters since the counter is then able to reject body motion see TA Counter section Note that a good gentle can squeeze will not trigger the detector and it can be used as a training excercise for this For those who find the blue LED irritating such as during training drills with coach simulated reads it can be turned off in Setup Mode Three levels of detection can be chosen see Setup Mode It is recommended to use the highest level unless it causes problems with triggering on heartbeat etc mw2A meter instructions Issue 1 0 Page 3 Batteries The meter runs on 2 AA alkaline batteries A low battery condition is indicated at turn on by the red LED illuminating andl o appearing on Lcd_L To continue using the meter press Key_L and replace the batteries at the next opportunity Batteries should be inserted with positive end towards the removable cap Alway2. that colour is selected 4 Body Motion sensitivity In this mode the display shows b followed by a l 2 or J II most sensitive m mi pa zd M Ww least sensitive 5 Needle TA Counter In this mode the display shows n followed by the words o nora F F Rotate the sensitivity knob to change setting To exit Setup Mode press Key_L mw2A meter instructions Issue 1 0 Page 5 Specifications Dimensions 14cmx 11 cm x 6 cm Weight 525 gm Connectors Standard 1 4 2 pole Jack Socket for electrodes USB Socket for computer connection future option 3 5mm 3 pole Jack Socket future options yet to be documented Batteries 2x AA 1 5V Battery life 500 to 1000 hours Dial Scale a X Graduations correspond to 1 4 on larger Optional Simple Scale available sized dials Optional Extras Single and two hand electrodes 43mm diameter integral cable mw2A meter instructions Issue 1 0 Page 6
3. LED Led L Key L Sensitivity Turn On Turn Off SET Needle Sensitivity Counter Enable Zero Counter LEDs mindwalker 2A Meter User Manual Issue 1 0 15 December 2013 Inquisitive Instruments Ltd Led R Key R Quick Start Guide Press Key_L Press and hold Key_R until meter turns off Meter will automatically turn off after 1 hour of inactivity Press Key_L Turn knob Lcd_L momentarily shows sensitivity setting Also press and hold Key_L to display sensitivity setting at any time Press Key_R to toggle counter on off When off Lcd_R will flash Press and hold Key_R until counter shows zero Green needle SET in progress Blue Body Motion detected mw2A meter instructions Issue 1 0 Page 1 Detailed Operation Turn on sequence Press Key_L The green LED illuminates and the firmware version is shown F on left version number on right After 2 seconds the green LED will turn off and the needle will SET The Lcd_L will briefly show sensitivity setting and then TA position The Lcd_R shows the TA counter The flashing display indicates that the counter has not been enabled Turn on options Holding down Key_L more than 2 seconds at turn on until the green LED turns off will cause the meter to enter Setup Mode see details in later section If Key_R is held down while turning on the meter automatic needle SET will be disabled and the needle must always be SET manuall
4. s use a suitable sized coin to release the cap a screwdriver can damage the plastic Note that most meter problems are caused by leaking batteries It is advisable to remove them if the meter is stored for long periods or change them at least every 2 years Battery life is over 500 hours Firmware Upgrade Like most modern electronic devices the meter is controlled by a computer chip This can be re programmed to change features or operation of the meter The program is called firmware and the version number installed in the meter is shown on Lcd_R at turn on while F is shown on Lcd_L Firmware can be upgraded via a USB cable connected to a computer running Windows operating system A separate instruction document provides details mw2A meter instructions Issue 1 0 Page 4 Setup Mode This mode is entered by holding down Key_L for 2 seconds when turning on the meter until the green LED turns off 2 seconds Lcd_L and Lcd_R will display all segments Cycle through the settings in this order by pressing Key_R Green LED brightness Blue LED brightness Red LED brightness Body Motion sensitivity Needle TA counter on off Back to 1 DAn sb WN All settings will display their current value until changed by rotating the sensitivity knob 1 2 3 LED Brighness Use the sensitivity knob to change the brightness for each colour The LED will light at the current brightness setting and only change if the sensitivity knob is moved while
5. y Turn off Hold down Key_R for 5 seconds The red LED will illuminate briefly and the meter turns off The meter will also turn itself off after 1 hour of inactivity Needle SET The needle can be manually SET at any time by pressing Key_L In automatic SET mode the needle will SET whenever it goes off the dial There is a deliberate delay before this happens on the right hand side of the dial A needle SET is accompanied by the green LED or blue LED see TA Counter section Automatic needle SET can be disabled by holding down Key_R when turning on the meter Sensitivity The rotary knob adjusts the sensitivity from 1 to 40 Turning the knob will cause Lcd_L to show the sensitivity setting which can also be shown at any time by holding down Key_L It will revert back to displaying TA when the button is released mw2A meter instructions Issue 1 0 Page 2 TA Counter A flashing display indicates that the counter is disabled The counter enable disable can be toggled by pressing Key_R To zero the counter hold down Key_R for 2 seconds Counting is inhibited by the Body Motion Detector If Body Motion occurs causing the needle to go off the right hand side of the dial the counter will be disabled during the next needle SET A needle SET is usually accompanied by the green LED however a needle SET with counter inhibited is accompanied instead by the blue LED Needle TA Counter The counter can optionally work continuously not
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