Instruction Manual MM850404 ed.05
33
6.4.3
Leak Constant Set-Up
The total leak time testing period, is the sum of four different test constants. The following procedure will show you how
to change these values.
•
Turn the instrument off.
•
Turn the instrument on by pressing the [
] and [
ON/OFF
] simultaneously.
•
DO NOT change the “AUTOZERO” value (it should be 180 secs). Press the [
ENTER
] key to select the next
parameter.
•
The display will show the P1 time constant (standard = 10 sec.). Press the [
S
] and [
T
] to change the value. Press
the [
ENTER
] key to store the value and display the next parameter.
•
The display will show the P2 time constant (standard = 0 sec.). Press the [
S
] and [
T
] to change the value. Press the
[
ENTER
] key to store the value and display the next parameter.
•
The display will show the P3 time constant (standard = 0 sec.). Press the [
S
] and [
T
] to change the value. Press the
[
ENTER
] key to store the value and display the next parameter.
•
The display will show the P4 time constant (standard = 900 sec.). Press the [
S
] and [
T
] to change the value. Press
the [
ENTER
] key to store the value and display the next parameter.
•
DO NOT change the “BAUDRATE” value (standard = 9600 baud). Press the [
ENTER
] key to store the value and
display the first parameter.
•
Turn the instrument off.
6.5
Ambient CO Monitoring
The 2000 series
allows ambient CO monitoring for personal safety. Two different sensor types can be used to perform
this function: an external probe or an internal sensor (the CO electrochemical sensor installed for flue gas analysis). An
acoustic and visible signal is emitted from the unit if the programmed limit is reached.
The following page shows the current exposure limits for CO gas. This table is a guide only, and the figures must be
checked before being used. Sensors used in safety applications should be fully calibrated at least every six months.
U.K.
HSE
GERMANIA
DFG
USA
OSHA
TWA (8h)
50 30 35
STEL (10’)
300 60
(30) 200
WARNING
S
ENSORS USED IN SAFETY APPLICATIONS SHOULD BE FULLY CALIBRATED AT LEAST EVERY SIX MONTHS
.
6.5.1
External CO Probe
(option)
This optional external probe allows ambient CO monitoring for personal safety. When connected to the analyzer, it
monitors continuously CO concentration and it signals when the Long-Term Exposure (TWA) limits are reached.
To perform the test, press the [
MENU
] key from measuring page.
Connect the probe to the instrument.
Press the [
ENTER
]. Press the [
MENU
] key until the following page will be displayed:
Содержание EcoLine 2000
Страница 53: ...Instruction Manual MM850404 ed 05 53 APPENDIX...
