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Gas Pup

16

Instruction 55-9002

High Pressure Mode

CAUTION: 

 Maximum over pressure without damage is

150 psig.

The high-pressure mode measures pressure

in the range of 0 to 99 psig. Enter this mode

by first selecting the pressure mode during

startup as previously described. The instru-

ment will default to its high-pressure mode

as signified by the letter “P” appearing in the

RANGE window. The READING window

will display the pressure applied to the

instrument’s pressure port. Note that an out-

of-range pressure condition is signaled by two

dashes “–.–” appearing in the READING

window.

Low Pressure Mode

The low-pressure mode measures pressure in

the range of 0 to 9.9 psig, and also negative

pressures down to –9.9 psig. Enter this mode

by first placing the instrument into it high-

pressure mode as previously described. Then

press the

key to switch to the low-pressure

mode as indicated by the letter “d” appearing

in the RANGE window. The READING window will display the pressure

applied to the instrument’s pressure port.  Positive pressure readings are

indicated by a 

steady 

display, while negative pressures are indicated by a

flashing 

display.  Note that an out-of-range pressure condition is signaled

by two dashes “–.–” appearing in the READING window.

Delta Pressure Mode

The delta pressure mode is used to measure the delta (difference) in

pressure, and is useful when pressure proving new or repaired piping

that has been pressurized with compressed air.

Do the following to pressure prove a piping system (see Figure 14):

1. Attach the components of the optional Service Line Pressure Testing

Kit (P/N 55-0072) between the piping being tested and the

instrument’s pressure port.

2. Set up the Pup to measure high pressure as previously described

under the heading 

High Pressure Mode

.

Operation

Typical High-Pressure

Reading

Typic Low-Pressure

Reading

Figure 13. High & Low

Pressure Modes

Содержание Gas Pup

Страница 1: ...Gas Pup Natural Gas Pressure Detection Instruction 55 9002 Operation Maintenance Rev 1 December 2003 Product Leadership Training Service Reliability...

Страница 2: ...all be limited to those provided herein to the exclusion of any and all other remedies including without limitation incidental or consequential damages No agreement varying or extending the foregoing...

Страница 3: ...ttery Installation 7 Turning ON the Gas Pup 8 Turning OFF the Gas Pup 10 Backlighting 11 Battery Voltage Check 11 Gas Operating Mode 11 Auto Ranging 12 Fixed HI Range 12 PPM Range 13 LO Low Percent Ra...

Страница 4: ...p 22 Gas Calibration Procedure 23 Pressure Sensor Check 27 Maintenance 28 Batteries 28 Sampling Probe 28 Gas Inlet Filter Replacement 29 Pump Replacement 29 Combustibles Sensor Replacement 30 Leak Che...

Страница 5: ...N is used to call a user s attention to hazards or unsafe practices that could result in injury or property damage The message that follows provides informa tion for preventing or avoiding the hazard...

Страница 6: ...Notes iv Instruction 55 9002 Gas Pup Safety...

Страница 7: ...ful in pin pointing leaks in underground piping through barhole testing The Gas Pup also features three pressure modes High 0 to 99 psig Low 9 9 to 9 9 psig and Delta displays a pressure change in the...

Страница 8: ...providing a more reliable and accurate test of gas levels It is also important in the PPM range to achieve a stable gas reading at low gas concentrations The sample pump includes a flow failure funct...

Страница 9: ...and two pushbutton keys READING Window A two digit display that is used to primarily display the concentration of natural gas in the LO and HI gas ranges The READING window also displays pressure read...

Страница 10: ...nge for the gas reading Key Turns the instrument and also the backlight ON and OFF Key Changes the instrument s function as determined by its current operating mode thus allowing a variety of function...

Страница 11: ...of final value Operating Environmental Conditions Temperature 4 to 122 F 20 to 50 C Humidity 10 to 95 R H non condensing Air Pressure 1 Standard Atmosphere 10 Position Any Storage Environmental Condit...

Страница 12: ...y of calibration however may change depending on how often the instrument is used and the amount of gas that was sampled Create a maintenance log to keep track of when an instrument was calibrated and...

Страница 13: ...gency approval use only the following types of AA alkaline batteries Energizer E91 Duracell MN1500 or MX1500 Rayovac 815 and Panasonic AM 3PI 1 Loosen the two thumbscrews on battery cover and remove c...

Страница 14: ...ned on After all segments have been displayed the word UEr Version is displayed followed by the instrument s software version number Next the letter b appears in the RANGE window along with the batter...

Страница 15: ...truction 55 9002 9 Gas Pup Figure 5 Turning ON the Gas Pup Operation Battery Voltage Mode Display RANGE Flashing Display Auto Start Sequence PPM Gas Display LCD Segment Test UEr Version Software Versi...

Страница 16: ...irst the battery voltage is displayed followed in about 1 second by the letters OFF scrolling across the screen The screen will go blank shortly after all three letters are displayed Release the key a...

Страница 17: ...the Gas Pup will operate down to 1 9 volts the last portion of the voltage curve is quite steep It is recommended that except for short tests the batteries be replaced when the reading drops to less t...

Страница 18: ...s change will be instanta neous But if the reading is close to 2 500 ppm observe that the display may flicker between ranges for a few seconds When the LO reading exceeds 5 0 the display automatically...

Страница 19: ...ges to the LO range showing a two digit value with one decimal place This range of the instrument is used for detect ing gas concentrations that may approach the explosive level Natural gas may cause...

Страница 20: ...ayed as The bar graph tracks the digital reading to give an enhanced visual picture of the changing gas concentration but the highest bar sticks at the maximum reading As noted above a unique feature...

Страница 21: ...ssure readings may result Before making a pressure measurement tubing must be connected between the gas source and the instrument s pressure port Depending on the application use the tubing and hardwa...

Страница 22: ...switch to the low pressure mode as indicated by the letter d appearing in the RANGE window The READING window will display the pressure applied to the instrument s pressure port Positive pressure rea...

Страница 23: ...should now appear in the READING window indicating that the pressure being measured equals the high pressure reading just taken Note The delta and low pressure modes are activated in the same manner T...

Страница 24: ...the hose which could eventually cause a flow restriction and where the dirt particles would be difficult to remove for cleaning Filters are packed ten to a box and are available as P N 5500 7100 Char...

Страница 25: ...sponse time of the instrument Therefore draw a sample of gas through the instru ment for at least 60 seconds before taking a reading 3 Take a second gas sample from the same area and note if the indic...

Страница 26: ...tainer Empty the bowl by first turning OFF the Pup or removing the water filter trap from the instrument and then pushing up on the drain valve located at the bottom of the bowl The water trap also co...

Страница 27: ...rror Messages The following is a list of error messages that may appear when operating the Gas Pup Note that numerical messages appear just prior to the instrument turning itself off Contact your near...

Страница 28: ...lance Nitrogen optional 2 5 0 05 methane 100 2 methane WARNING If you are not using Bacharach s calibration kit be sure not to apply pressure to the gas inlet from your own calibration equipment Use t...

Страница 29: ...Step 3 wait until the instrument enters its auto start period flashing AS appears in the READING window 3 See Figures 19 and 20 Auto calibration is started by pushing the key at any time while AS is b...

Страница 30: ...display will change to the calibration setting 2 5 for the LO range or 100 for the HI range At this time the calibration gas may be removed The instrument s programming contains safeguards to prevent...

Страница 31: ...Instruction 55 9002 25 Gas Pup Figure 19 Performing a LO Calibration Steady Display Apply 2 5 gas now Flashing Display Flashing Display Remove gas Fashing Display During Calibration Calibration...

Страница 32: ...p 26 Instruction 55 9002 Calibration Figure 20 Performing a HI Calibration Steady Display Apply 100 gas now Remove gas Flashing Display Flashing Display Flashing Display Flashing Display During Calibr...

Страница 33: ...in Figure 21 2 Turn Pup ON and select its high pressure mode as described under the previous heading Pressure Operating Mode 3 Adjust regulator of pressure source for a pressure gauge reading of 50 p...

Страница 34: ...w To replace the batteries refer back to the previous section Battery Installation Sampling Probe The sampling probe is the most likely candidate for maintenance as it is subject to damage in normal f...

Страница 35: ...e using a 5 64 Allen wrench to remove the plate s four corner screws Then remove plate and rubber bumper to expose the instrument s interior 2 Back off the pump bracket screw in the lower corner of th...

Страница 36: ...seated in receptacles and bot tomed on circuit board 5 Reinstall printed circuit board into flow block taking care to properly position the board as shown in Figure 24 6 Replace three screws and tight...

Страница 37: ...ance Figure 24 Pump or Sensor Replacement FLOW BLOCK COMBUSTIBLES SENSOR WAVE WASHER PRINTED CIRCUIT BOARD SCREW 3 PLACES PUMP BRACKET SCREW PUMP BRACKET PUMP MULTI PIN CONNECTOR PUMP CONNECTOR PRESSU...

Страница 38: ...y 55 0043 Hose Coiled 55 0032 Quick Connect Fitting Female 103 5402 Gas Probe Assembly 55 3000 Probe Tube w Filter Chamber 10 3474 1350 O Ring 11 16 ID x 13 16 OD 05 5116 Pump Assembly 55 0061 Quick C...

Страница 39: ...t s gas tubing 5500 7100 Charcoal Filter Pack package of 10 Provides the ability to detect the difference between petroleum vapors and natural gas 5500 7400 Pressure Hose Kit Includes a 48 coiled poly...

Страница 40: ...Fax 724 334 5723 Email help bacharach inc com Texas 5151 Mitchelldale B 4 Houston TX 77092 Phone 713 683 8141 Fax 713 683 9437 Email txservice bacharach inc com Canada Bacharach of Canada Inc 250 Shie...

Страница 41: ...Instruction 55 9002 35 Gas Pup...

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Страница 44: ...rld Headquarters 621 Hunt Valley Circle New Kensington PA 15068 7974 Ph 724 334 5000 Fax 724 334 5001 Toll Free 800 736 4666 Website www bacharach inc com E mail help bacharach inc com Printed in U S...

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