Hach-lange ISENH318103 User Manual User Manual

User ManualDOC022.52.80107Ammonia Probe: Model ISENH318101 or ISENH318103Safety informationPrecautionary labelsRead all labels and tags attached to th

6. Select Acceptance Criteria and update the settings:Option DescriptionAcceptance Limits Sets the tolerance limits for check standard—1% to 20%.Cal E

Note: After long-term storage, the ISENH3181 probe (with membrane module assembled)might need to be conditioned in Ammonia probe storage solution for

Message or symptom Possible cause ActionDrifting/inaccurate readingsDirty sensing element Clean the probe (body, membrane module and glassbulb).Clogge

Message or symptom Possible cause ActionTemperature out of rangeCalibration temperature value isoutside of rangeMake sure that the sample temperature

• V1 = spike volume (mL)•V2 = spike volume (mL) + 25 mL sample volume• E = expected concentration of spike (mg/L)• R = percent recovery• A = actual re

Figure 1 Probe overview1 Soaker bottle 5 1 or 3 m (3.28 or 9.84 ft) cable2 Membrane module protector cap (3x) 6 Fill solution bottle3 Membr

Calibration notes:•Stir the standards and samples at a slow and steady rate to prevent the formation ofa vortex.• Additional standard sets along with

6. Add a stir barand put the probein the firststandard solutionin the set. Do notput the probe onthe bottom orsides of thecontainer.7. Put the beake

• The integrated temperature sensor and HQd meter software do not compensate fordifferences in temperature between calibration standards and samples.

InterferencesThe sensing element responds to ammonia as well as other ions. Typically, proberesponse to another ion increases the potential, and cause

Advanced operationParameter-specific settings can be changed through the Full Access Options menu.Details about menu navigation, available options and

Option DescriptionAuto Stabilization Sets auto stabilization—on (default) or off.The default stability drift rate is 1.0 mV/min.Stability Criteria Whe

Option DescriptionMinimum CalPointsSets the minimum number of calibration points necessary before acalibration can be completed—2 or 3.Slope Limit Set