User`s Manual Heavy Duty Pressure Meter Model 407495
Contents
1. 100 mV DC 30 mm diameter x 85mm 5 6502 160g 39 1m 3 Model 407495 Version 1 4 6 2004 Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 FAX 781 665 0780 TestEquipmentDepot com Meter Description 1 Transducer cable shown plugged into meter input jack RS 232 Output Jack LCD Display Protective rubber holster Keypad Battery compartment on rear of meter Transducer shown attached to meter cable Model 407495 Version 1 4 6 2004 Preparation for Use Measurement Procedure Overview The following list provides an overview of pressure measurement steps Each step is discussed in subsequent paragraphs Note that the first 4 steps should only be performed the first time the meter is used and each time the transducer is changed 1 Select a Transducer model that covers the desired range Plug the Transducer into the meter s input jack Program the Transducer range Select the measurement units Zero the meter Connect the Transducer to the process under test Sele SO aes ABP Apply pressure to the process under test 8 Read pressure reading on the meter s LCD Selecting Transducer Range 1 With the meter turned OFF simultaneously press and hold the HOLD SENSOR amp RECORD buttons down 2 While holding the three buttons down press the POWER key momentarily Release the 3 buttons when the LCD display switches on 3 Anumber will appear on the LCD that represents the Transducer typ2. O button Note that the ZERO button should always be pressed after swapping transducers 3 Ifthe display reads zero after pressing the ZERO button proceed to the next section If the display does not zero the transducer may be defective Connect Transducer Port to Process 1 Ensure that the process under test is not pressurized 2 Connect the Transducer s 1 4 PS 19 teeth per inch threaded port to the process under test 3 Apply pressure to the process 4 Read the pressure on the meter s LCD Data Hold 1 When a reading is on the display that you wish to hold press the Data Hold button 2 The reading will freeze and the HOLD icon will appear on the display 3 Press the Data Hold button again to release the reading and return the meter to normal operation Minimum Maximum Reading Memory 1 Press the RECORD RECALL button to start tracking the highest MAX and lowest MIN readings The REC indicator will appear on the LCD Take pressure measurements When pressure measurements are complete press the RECORD RECALL button to recall the Maximum reading recorded the MAX indicator will appear on the LCD 4 Press the RECORD RECALL button again to recall the Minimum reading recorded the MIN indicator will appear on the LCD 5 To exit this mode and return the meter to normal operation press and hold the RECORD RECALL button until the REC indicator goes out Auto Power Off In order to conserve battery life the meter aut
3. Test Equipment 99 Washington Street Depot Melrose MA 02176 Phone 781 665 1400 1 800 517 8431 Toll Free 1 800 517 8431 User s Manual EXTECH INSTRUMENTS Heavy Duty Pressure Meter Model 407495 POWER HOLD SENSOR TYPE RECORD RECALL UNIT ZERO Meter 407495 EXTECH Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 FAX 781 665 0780 TestEquipmentDepot com Introduction Congratulations on the purchase of the Extech Heavy Duty Pressure Meter Model 407495 This meter measures and displays pressure in eight 8 measurement units Up to six 6 interchangeable transducers sold separately in varying ranges can be used with this meter Special features include RS 232 PC Interface Min Max Memory push button Zero Data Hold and Auto Power Off Careful use of this meter will provide years of reliable service Display Transducers Transducer signal Display units Zero adjust Data Hold Min Max Memory PC Interface kit Auto Power Off Sampling time Power supply Low battery indication Power consumption Operating Temperature Operating Humidity Dimensions Weight Accessories Specifications General Specifications Multi function LCD 30 75 150 300 700 and 1500 max psi sold separately Full scale 100mVDC Bar psi Kg cm mm Hg inches Hg meters H O inches H O Atmosphere Front panel push button Displayed reading can be held by front panel p
4. e Select the Transducer type by pressing the SENSOR TYPE key until the desired transducer number appears Select the transducer from the list below in step 5 4 Press the ZERO button to store the new transducer type The meter will memorize the new type even when the meter is turned OFF 5 Select the transducer from the following list e Select 2 for the 30 psi 2 bars transducer e Select 5 for the 75 psi 5 bars transducer e Select 10 for the 150 psi 10 bars transducer e Select 20 for the 300 psi 20 bars transducer e Select 50 for the 700 psi 50 bars transducer e Select 100 for the 1500 psi 100 bars transducer NOTE The meter does not need to be recalibrated each time the transducer is changed Connecting the Transducer to the Meter 1 Press the POWER button to turn the meter OFF 2 Remove the existing transducer if necessary by unplugging it from the meter s input jack top of meter 3 Plug the new transducer into the meter s input jack Selecting the Unit of Measure Press the UNIT key to select the desired unit of measure Bar psi Kg cm mm Hg in Hg m H O inch H O or Atmospheres ATP 5 Model 407495 Version 1 4 6 2004 Operation Push button Zero 1 Attach a transducer to the meter turn the meter ON and select the range that matches the attached transducer as described in the Preparation for Use section 2 With the transducer attached to the meter but not attached to the process press the ZER
5. omatically shuts off after 10 minutes To defeat this feature put the meter in the Record mode by pressing the RECORD RECALL button the REC indicator will appear As long as the REC icon is displayed the meter will stay on indefinitely 6 Model 407495 Version 1 4 6 2004 Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 FAX 781 665 0780 TestEquipmentDepot com
6. ush button Lowest Highest readings can be stored for later recall Built in RS 232 port for use with optional Windows data acquisition software To conserve battery life the meter turns OFF automatically after approx 10 minutes programmable over ride 0 8 seconds approx 9V Battery Rectangular battery life box appears on the left side of LCD Approx 7mA 32 to 122 F 0 to 50 C Less than 80 RH 7 1 x 2 8 x 1 3 180 x 72 x 32mm Approx 0 76 lbs 345g Protective rubber holster and 9V battery 2 Model 407495 Version 1 4 6 2004 Transducer Range Resolution and Accuracy Specifications Resolution in H20 Range Resolution Resolution Accuracy Meter only 0 5 reading 1 digit Transducer only 2 full scale Combined 2 5 full scale 1 digit Accuracy note Specified accuracy applies to meter at 23 C 5 C Calibration note Re calibration is not required each time a new transducer is attached Transducer Specifications PT1500 Overload protection Diaphragm Supply voltage Thread Span full scale Zero Operating Temperature Operating Humidity Output Size Weight Cable length _ Maximum Capacity lt 1500psi 100 BAR 150 of max capacity Ceramic 5V w PS 19 teeth per inch 1 10 to 40 C includes linearity hysteresis amp repeatability 2 Full Scale 10 C to 40 C 32 F to 140 F 0 C to 40 C Max 80 RH Full capacity output
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