Benchmark Platinum-Edge: Operation-Service Manual
SECTION 4 – INITIAL START-UP
OMM-0137_D • GF-211 • 7/16/2019 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page 40 of 146
NATURAL GAS Manual Combustion Calibration Instructions
2
level is within the specified range at 100%:
• Enter the Flame Strength, NOx and CO readings from the Combustion Analyzer and
multi-meter in the Manual Combustion Calibration screen’s Reading column.
• Enter the same values, plus the O
2
value, on the Combustion Calibration Data Sheet
provided with the unit.
24. Lower the Valve Position to the next calibration point using the (Left) arrow key (if using
Method 1 in step 11) or the Fine Valve Position – (Minus) key (if using Method 2).
• BMK 750 & 1000: 80%
• BMK 1500 – 6000: 70%
25. Repeat step 17, 18 and 21 at that valve position and the rest of the valve positions in Table
4-3a through 4-3d, depending on model. The O
2
, NOx and CO should stay within the
ranges shown in these tables.
TABLE 4-3a: NATURAL GAS BMK Final Valve Positions: BMK 750-1000
Valve Position
Standard NOx Ultra-Low NOx
CO
O
2
% NOx O
2
% NOx
80% 5.5% ± 0.2%
≤20 ppm 6.0% ± 1.0% ≤9 ppm <100 ppm
60% 5.5% ± 0.2%
≤20 ppm 6.0% ± 1.0% ≤9 ppm <100 ppm
45% 5.5% ± 0.2%
≤20 ppm 6.0% ± 1.0% ≤9 ppm <50 ppm
30% 5.5% ± 0.2%
≤20 ppm 6.0% ± 1.0% ≤9 ppm <50 ppm
18% 5.5% ± 0.2%
≤20 ppm 6.0% ± 1.0% ≤9 ppm <50 ppm
TABLE 4-3b: NATURAL GAS Final Valve Positions: BMK 1500-2000
1500 & 2000 – Single Fuel Units
Standard NOx Ultra-Low NOx
CO
O
2
% NOx O
2
% NOx
70% 6.0% ± 0.2%
≤20 ppm
5.5% ± 1.0% ≤9 ppm
<100 ppm
≤20 ppm 5.8% ± 1.0% ≤9 ppm
≤20 ppm 6.0% ± 1.0% ≤9 ppm
≤20 ppm 6.0% ± 1.0% ≤9 ppm
≤20 ppm 8.0% ± 1.0% ≤9 ppm
TABLE 4-3c: NATURAL GAS Final Valve Positions: BMK 1500DF-2000DF
BMK 1500 Dual Fuel Units
Valve % O
2
% NOx CO