Bacharach HI FLOW Sampler, Instruction, Page: 9 / 72

Hi Flow Sampler Technical Data
Instruction 0055-9017
5
2 Technical Data
Information Displayed .......... - Date and Time
- Battery voltage
- Sampling flow rate in cfm
- Background gas concentration in ppm or % by volume
- Leak concentration in ppm or % by volume
- Leak rate in cfm
- Percent difference between leak rate measurements #1 and #2
- Latitude, Longitude, Altitude, and Time of Fix, when the
optional GPS receiver is attached
Display................................. 8 line by 20 character LCD
Pushbutton Controls ............ -
I/O

(Enter)
-

(Up Arrow)
-

(Down Arrow)
-
ESC
(Escape)
Communication.................... Three DB9 connectors providing serial data transfer at 115200
baud to a personal computer, bar code reader, and GPS receiver
Measured Values.................. - Sampling flow rate
- Background gas concentration
- Sample gas concentration
- Battery voltage
Calculated Values ................ - Leak concentration corrected for background gas level
- Leak rate
- Percent difference between leak rate measurements #1 and #2
Measurable Leak Rate .......... 0.05 to 8.00 SCFM (1.42 to 226 LPM)
0.05 to 6.00 SCFM (1.42 to 170 LPM)
Accuracy of Calculated
Leak Rate ............................. ±10% of reading
Temperature:
Operating .......................... 0 to 50 °C (32 to 122 °F)
Storage.............................. –40 to 60 °C (–40 to 140 °F)
Humidity.............................. 5 to 95% RH (non-condensing)
Sampling Flow Rate:
Maximum .......................... 10.5 SCFM (297 LPM) at full battery charge
Operating Flow Points ....... Initial flow approx. 10 SCFM (283 LPM)
Second flow approx. 8 SCFM (226 LPM)
(The second flow rate is 25% of the initial flow)
Measurement Method........ Differential pressure across restriction
Accuracy ........................... ±5% of reading