Endress+Hauser Analytik Jena multi N/C 2100S User Manual

Fault removal multi N/C 2100S
100

when analyzing unknown substances use low
concentration where possible (dilute sample if possible)
 use synthetic air as carrier gas
Unusual peak form (TC and TN
b
-Measurement)
Cause Remedy
 Catalyst depleted  if low results simultaneously, regenerate or replace catalyst
 faulty metering  ensure even injection during manual metering
 unfavorable integration criteria selected  check integration criteria
 exceeding the measuring range for TN
b
measurement
with CLD (peak height > 500 ppm NO in the measuring
gas)
 Dilute samples
Metering with autosampler faulty
Cause Remedy
 System not tight during injection
 Sample is not drawn up without air bubbles
 Syringe is not ejected fully
 Check sampler adjustment
 Check the adjustment of the syringe in the sampler and
adjust the syringe piston if necessary (see p. 67)
 Check the syringe (see p. 101)
Manual metering in septum-free lock faulty
Cause Remedy
 Measuring gas loss, because system not tight during
injection
 Measuring gas loss, because syringe is removed too
early from the lock after injection
 Slide the septum onto the cannula - sealing the syringe
piston against the lock during injection
 Press the syringe lightly against the lock during injection
until the measuring gas flow is just about reached
Visual inspection via the indication in the window S
YSTEM
STATE
 Only remove the syringe from the lock once the measuring
gas flow (indication in the window S
YSTEM STATE) has
stabilized at 160 ml/ min
 Leave the syringe in the lock for the same amount of time
for all measurements
 For TIC measurements leave the syringe in the lock
throughout the whole integration if possible
 Ensure even injection
 Do not inject too fast; the injection speed has to be
reduced with a rising sample volume
 Carry-over, since the sample is metered near the
reactor wall
 Meter the sample vertically into the reactor
Manual metering in locks with septum faulty
Cause Remedy
 Uneven dosing  Ensure even injection
 Do not inject too fast; the injection speed has to be
reduced with a rising sample volume
 Carry-over, since the sample is metered near the
reactor wall
 Meter the sample vertically into the reactor

Endress+Hauser Analytik Jena multi N/C 2100S Specifications

General

Brand	Endress+Hauser
Model	Analytik Jena multi N/C 2100S
Category	Measuring Instruments
Language	English