APM 130 MANOMETER OPERATING INSTRUCTIONS
Contents
1. APM 130 MANOMETER Digitron LIL digitron co uk OPERATING INSTRUCTIONS 12742 rev 2 RANGE Model Operating Range Overrange APM 130 20 0 19 99 mbar 1bar 402 H20 20 0 130 0 mbar The above model features backlight out of range zeroing and hold Particular care should be taken not to over pressure the device as this may rupture the sensor membrane This is not covered by the manufacturers warranty NOTE The differential gauge instruments will only measure positive pressures i e positive pressure applied to the positive port or negative pressure applied to the negative port INSTRUMENT APPLICATION The APM instrument is suitable for gauge and differential measurement over a wide range of pressures They are not suitable for use with corrosive substances or cyclic hydrocarbons e g motor oil transmission fluid and freon To use the APM with these components isolation must be provided in the form of a buffer such as a mineral oil or dry air INSTRUMENT OPERATION BATTERIES Two AA or equivalent cells not supplied Follow instructions on reverse of instrument for fitting replacement When symbol appears on display replace batteries IP65 IP67 RATING The waterproof rating for this product will not be maintained unless the screws holding the battery compartment are firmly tightened when inserting or replacing batteries ON OFF Press ON key for on and OF2. F key for off Automatic switch off after 12 minutes unless any key is activated If lt gt key is held when unit is switched on automatic switch off function will be disabled until the unit is switched off BACKLIGHT Press and hold ON key OUT OF RANGE If pressure exceeds the scale range Out will appear on the display ZEROING In order to achieve maximum accuracy it is recommended to zero the instrument in the orientation it will be used before taking any measurements DISPLAY HOLD Pressing lt gt key freezes the display The lt gt symbol will appear on the display Press lt gt key again to return to normal display HAND PUMP OPERATION if applicable Use the T piece to connect the hand pump to the instrument s port and to the equipment being tested Exhaust the system by turning the release valve on the hand pump anti clockwise and set the fine adjustment threaded piston to mid range Close the release valve and apply pump action to the hand pump piston to generate the required approximate pressure Fine adjustment of the desired pressure can then be made by rotating the threaded piston The release valve may be used to vent the system Note The hand pump is capable of generating 7bar max It is therefore essential that extra care is taken not to over pressure the instrument INSTRUMENT ACCURACIES Over temperature range 10 C to 50 C is 0 2 of reading 0 2 of full scale 1 digit The overall performance o
3. f the instrument is obtained by combining the stated accuracy and any uncertainty due to the measurement process WARRANTY This instrument has been carefully assembled and tested and is warranted against faulty workmanship and materials for two years from the date of purchase During the warranty period any defective instrument will be repaired or replaced at the discretion of the manufacturer This warranty does not cover damage or failure resulting from misuse or accident Modification adjustment or any alteration with the internal arrangement of the instrument shall absolve the manufacturer from any liability in respect of the instrument Any instrument to be repaired should be forwarded to the supplier carriage paid and at the owner s risk A brief description of the fault should be included TEST RESULTS This instrument has been tested using a calibrated dead weight system Model siriaca Sedal NO srik This instrument has been tested in ooooo ocooooooooWo mo Tested Dy ona INPUT READING
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