Heath Consultants Hi Flow Sampler - Manual (Page 8)

Hi Flow

Sampler Introduction
8 Instruction 0055-9017
1.6 Technical Data
TABLE 1-1. TECHNICAL SPECIFICATIONS
Specification Description
Information
Displayed
• Date and Time
• Battery voltage
• Leak rate in cfm
• Sampling flow rate in cfm
• Leak concentration in ppm or % by volume
• Background gas concentration in ppm or % by
volume
• Percent difference between leak rate
measurements #1 and #2
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, or other peripheral device
Measured Values • Sampling flow rate
• Battery voltage
• Sample gas concentration
• Background gas concentration
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 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 ≈ 10 SCFM (283 LPM). Second flow ≈ 8
SCFM (226 LPM). (The second flow rate is 25% of the
initial flow)
Measurement Method ................ Differential pressure across restriction
Accuracy ...................................... ±5% of reading
Natural Gas Sensor Detection Method ....................... Catalytic oxidation / Thermal conductivity
Range: Catalytic oxidation.......... 0 to 5% by volume methane
Range: Thermal conductivity ..... 5 to 100% by volume methane
Accuracy ...................................... ±5% of reading or 0.02 % methane, whichever is greater
Battery Voltage ............... 4.8 V, max.
Recharge Time ... 8 to 10 hrs Type .......... Intrinsically Safe NiMH rechargeable pack
Run Time ... >4.5 hours continuous operation @ 20 °C
(68 °F)
Memory Stores up to 1000 individual test parameters
Dimensions 18L x 12W x 7H inches (457 x 305 x178 mm)
Weight 20 lbs (0.9 kg)
Agency Approvals Designed to be intrinsically safe for use in hazardous locations Class I, Division 1, Groups
A, B, C & D in North America. CAN/CSA-C22.2 No. 157 – (June 1992). ANSI (June 27,
2002)/UL913-2002. Intrinsically Safe Apparatus and Associated Apparatus for use in
Class I, Division 1, Hazardous (Classified) Locations. CE Mark – See section 8 for
Declaration of Conformity statement.
∇ ∇ ∇