Hach-Lange HQD - BOD LDO Probe LBOD - Manual (Page 11)

DOC272.53.80025 11
Calibration failed:
outside of acceptance
criteria/Temperature
out of range/Offset out
of limits
Water Saturated air equilibration not
reached
Allow longer equilibration time.
Sensor cap loose, scratched or damaged Reposition or replace the LBOD sensor cap.
Temperature and/or pressure sensor
malfunction error Verify that both temperature and pressure sensors are
reading correctly and within range.
1
Damaged probe
Verify both blue and red LEDs are illuminated. If not,
replace the probe or contact a Hach Technical
Representative (800-227-4224).
1 The pressure as measured by the LBOD or LDO is what is referred to as atmospheric pressure and is not corrected to sea
level. Weather station pressures are reported at sea level and commonly referred to as “mean sea level pressure.” As a result,
the LBOD or LDO will not read the same as most household or professional barometers or weather station reports (which are
compensated), unless reported at sea level. In order to compare the pressure results obtained from the LBOD or LDO probe
barometers and these compensated barometers, it is necessary to first compensate the pressure reported by the probes
mathematically.
Replacement parts
Description Quantity Item Number
IntelliCAL LBOD probe, standard, with 1.8 m cable 1 LBOD10101
USB and AC power adapter for HQd meters (included with the
HQ40d)
each 5826300
Accessories
Description Quantity Item Number
BOD bottle (300 mL) 1 62100
BOD bottle (300 mL) 6/pkg 62106
Citizen PD-24 USB handy printer, 120-220 VAC 1 2960100
Color coded probe clips (5 color coded sets) 10/pkg 5818400
Erlenmeyer flask (250 mL) 1 2089846
Printer paper for PD-24, thermal 5/pkg 5836000
Probe holder for HQd meter (IntelliCAL standard models only) 1 5829400
USB keyboard for HQd meters (must have 5826300) 1 LZV582
Consumables
Description Quantity Item Number
BOD standard solution, 300 mg/L GGA, 10-mL Voluette ®
ampules (25x)
16/pkg 1486510
Buffer solution, APHA, for BOD, pH 7.2, 1 43153 phosphate
type (1 L)
1 43153
Calcium chloride solution, APHA (500 mL) 1 42849
Cobalt chloride solution (500 mL) 1 1422249
eZGGA BOD standards 20/pkg 2514420
Ferric chloride solution, APHA (1 L) 1 42953
LBOD sensor cap 1 5838000
Magnesium sulfate solution, APHA (500 mL) 1 43049
Nitrification inhibitor (TCMP) - (200 tests), 25 g 1 253335
Nitrification inhibitor (TCMP) - (2500 tests), 500 g 1 253334
Troubleshooting (continued)
Message or symptom Possible cause Action