User`s Manual for 88M Digital Manometer
Contents
1. it is turned off 6 Units of Measure Press the Unit button momentarily and the meter will cycle through the 11 available units of measure as indicated by the cursor on the bottom of the display 7 Error Codes An error message will appear on the display if the meter fails an internal diagnostic test With a failure the meter will freeze all the buttons 1 Err 1 Pressure value is over the range 2 Err 2 Pressure value is below the range 3 Err 3 DIF function the differential pressure value is over range 4 Err4 DIF function the differential pressure value is below range Battery Replacement When the battery power does not provide enough power for correct measurements BAT will appear on the LCD display Replace the 9V battery by removing the back cover 88M 1 10 FD12. User s Manual for 88M Digital Manometer CE Distributed by www FiredragonEnt com Overview Th 88M Digital Manometer measures Gauge Differential Pressure from 55 41nH20 to 55 4 inH20 2 psi It features 11 selectable units of measure 1nH20 psi bar mbar kPa inHg mmHg ozin ftH20 cmH20 cmH20 kgcm Additional features include Data Hold and Auto Power Off Disabled Careful use of this meter will provide years of reliable service When the 88M Manometer is not in use store it in its pouch Specifications Display Dual LCD Accuracy 0 3 FSO 25 C Repeatability 0 2 Max 0 5 FSO Linearity Hysteresis 0 29 FSO Pressure Range 2 psi Maximum Pressure 10psi Response Time 0 5 Seconds typical Low Battery Indicator Yes Over range Indicator FErr 1 Under range Indicator Err 2 Operating Conditions 0 to 50 C Storage Conditions 10 to 60 C Power Supply Measurement Scales 1 each 9V Battery or external 9Vdc Power Supply w poo wor hro ho foor 13 79 0 140 0 001 4 072 0 001 0 137 0 001 103 4 Od e Function Buttons The meter has four buttons See Figure 1 1 UNITS 2 DIF 3 REC 4 ON OFF Display Description The meter will display the following See Figure 2 1 Hold Function 2 Differential Mode 3 Primary Data Screen 4 MAX MIN AVG 5 Low Battery Indicator 6 Pressure Unit indicator 7 Relative Time Clock Operation 1 Power Press the ON OFF button to turn the meter
3. power on or off The meter will perform a short self test when turned on The meter defaults to the UNITS setting used during the last operation 2 Zero Adjust and Offset Before using and without hoses or fittings attached to the meter press the HOLD button for more than 2 seconds to zero the meter The meter will reset and display 0000 from right to left and 0 000 will be displayed If it is desired to offset the meter and display press the DIF button while taking a measurement Subsequent reading will be the difference between the current measurement and the measurement that was on the display when the DIF button was pressed 3 Data Hold HOLD UNITS ON OFF Figure 1 kPa kgem inH O ftH O cmH O Figure 2 DIF Press the HOLD button momentarily to freeze the displayed reading The HOLD icon will appear on the upper left hand side of the display If the pressure value is over the range error codes will show on the screen Press the HOLD button again to return to normal operation 4 Backlight Display Press the Backlight button to turn on the backlight It will remain on for 40 seconds 5 Automatic Power Off The meter will automatically shut off after 20 minutes to conserve battery life To disable Auto Power Off hold down the HOLD button and turn on the meter An n will appear in the display indicating that Auto Power Off mode is disabled The meter will return to normal operation when
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