Hanna Instruments HI 93531 Instruction Manual

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Contents

Hanna Instruments HI 93531 Instruction Manual Manual pdf 9 page image

1716The average value is lost and will not restore even if the conditionrestores. To start the average cycle again, either press CLR or re-enter the average mode.• While in T1-T2 (HI 93532R only), pressing DISP will switchbetween 4 displays:Note: Pressing T1/T2 (HI 93532R only) to change the channel will notalter the information chosen to be displayed for each channel(DISP). For example, if T1 is in average mode, the average willcontinue to be calculated even if the user press T1/T2 to see T2.Note: Relative/average modes cannot be entered if dashes are shownon the primary LCD.Note: The auto-off time is disabled whenever a channel is set toaverage mode.When the battery level is below 5%, the battery symbol will blink onthe LCD to indicate a low battery condition.If the battery level is low enough to cause erroneous readings, theBattery Error Prevention System (BEPS) turns the meter off.Immediately replace the batteries with new ones.The batteries are accessed by separating the front and the backhalves of the meter: unscrew the 4 screws on the back of the meterand carefully replace the three batteries located in the batterycompartment, while paying attention to their polarity. Reattach theback making sure that the gasket is in place and tighten the screwsto ensure a watertight seal.Battery replacement must only take place in a non-hazardous areausing 1.5V AA (IEC LR6) alkaline batteries.BATTERY REPLACEMENTSERIAL PORT COMMUNICATION(HI 93531R & HI 93532R only)HI 93531R and HI 93532R feature an RS232 output for transfer-ring measurement data (once every second for HI 93531R and onceevery 2 seconds for HI 93532R) to devices provided with RS232 input(PC or printer).The communication protocol has been designed to transmit to thereceiving unit all the displayed information.The communication is unidirectional (meter to receiving unit only) andthe transmissions consist in a 32-character ASCII string, compatiblewith our optional HI 92000 software.The 32-character data string is structured as follows:Main portion of the LCD• byte 0 probe type: K-thermocouple (k)• bytes 1, 2 measurement channel: T1, T2, T1-T2 (Td)• byte 3 measurement mode: Normal (blank), Relative (R),Average (A), Average done (a)• byte 4 operating mode: Hold (H), Memory recall (M)• byte 5 blank character• bytes 6-10 measurement: reading (XXX.X or blank XXXX),over-range (OVRG blank), no data (blank ----)• byte 11 temperature unit: C, F• byte 12 blank characterSecondary LCD, left portion• bytes 13, 14 info description: low temperature (Lo), T1 (T1)• byte 15 blank character• bytes 16-20 measurement: reading (XXX.X or blank XXXX),over-range (5 blanks), no data (blank ----)• byte 21 blank characterSecondary LCD, right portion• bytes 22, 23 info description: high temperature (Hi), T2 (T2)• byte 24 blank character• bytes 25-29 measurement: reading (XXX.X or blank XXXX),over-range (5 blanks), no data (blank ----)• byte 30 • byte 31 line feed

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