Heath-consultants Hi Flow Sampler Uživatelský manuál stáhnout pdf (Strana 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.

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