Teledyne T200, Руководство по эксплуатации, Страница: 102 / 425

Setup Mode Menus Teledyne API
– T200 NO/NO
2
/NO
X
Analyzer Operation Manual
100
Table 5-3: Variable Names (VARS)
NO. VARIABLE DESCRIPTION
ALLOWED
VALUES
VARS
DEFAULT
VALUES
0
DAS_HOLD_OFF
Changes the Internal Data Acquisition System (DAS)
HOLDOFF
timer:
No data is stored in the DAS channels during situations when the
software considers the data to be questionable such as during warm
up of just after the instrument returns from one of its calibration
mode to
SAMPLE
Mode.
May be set for
intervals
between
0.5 – 20 min
15 min.
1
MEASURE_MODE
Selects the gas measurement mode in which the instrument
is to operate. NO
x
only, NO only or NO
x
and NO
simultaneously.
NO;
NO
x
;
NO
x
–NO
NO
x
–NO
2
STABIL_GAS
Selects which gas measurement is displayed when the
STABIL
test function is selected
NO; NO
x
;
NO
2
;
NO
x
3
TPC_ENABLE
Enables or disables the Temperature and Pressure
Compensation (TPC) feature (Section 13.9.2).
ON/OFF
ON
4
DYN_ZERO
1
Dynamic zero automatically adjusts offset and slope of the
NO and NO
X
response when performing a zero point
calibration during an AutoCal (see Section 9.5).
ON/OFF
OFF
5
DYN_SPAN
1
Dynamic span automatically adjusts the offsets and slopes of
the NO and NO
x
response when performing a span point
calibration during an AutoCal (see Section 9.5).
ON/OFF
OFF
6
IZS_SET
Sets the internal span gas generator’s permeation tube oven
temperature. Changing this temperature will impact the NO
2
permeation rate (Section 3.3.2.5).
30

C - 70

C
51

C
7
CONC
_
PRECISION
Sets the number of significant digits to the right of the decimal
point display of concentration and stability values. AUTO, 1, 2,
3, 4
AUTO
8
CLOCK_ADJ
Adjusts the speed of the analyzer’s clock. Choose
+
sign if
the clock is too slow; choose
-
sign if the clock is too fast.
-60 to +60
s/day
0 sec
9
CAL_ON_NO
2
Allows turning ON and OFF the ability to span the analyzer
with NO
2
, in which case the instrument acts as if NO and NO
X
are spanned, even though it is supplied with NO
2
.
The NO
2
concentration is then zero by default.
ON/OFF
OFF
10
SERVICE_CLEAR
Resets the service timer. Pressing OFF turns the setting to
ON. ENTR resets the timer to 0 and returns the setting to OFF.
ON/OFF
OFF
11
TIME_SINCE_SVC
Displays number of hours since last service (since
SERVICE_CLEAR was reset).
0-500000
0 Hrs
12
SVC_INTERVAL
Sets the number of hours between service reminders. 0-100000
0 Hrs
1
Use of the DYN_ZERO and DYN_SPAN features are not allowed for applications requiring EPA reference.
Note
There is a 2-sec latency period between when a VARS value is changed and the
new value is stored into the analy
zer’s memory. DO NOT turn the analyzer off
during this period or the new setting will be lost.
06858E DCN7057