Teledyne 9110T instruction manual Allowed Vars Variable Description Default Values, Off, Auto

Model 9110T NOx Analyzer					Setup Menu
			Table 5-3: Variable Names (VARS)
				ALLOWED	VARS
NO.	VARIABLE		DESCRIPTION		DEFAULT
				VALUES	VALUES
			Changes the Internal Data Acquisition System (DAS)	May be set for
			HOLDOFF timer:
				intervals
0			No data is stored in the DAS channels during situations
	DAS_HOLD_OFF			between	15 min.
			when the software considers the data to be questionable
				0.5 – 20 min
			such as during warm up of just after the instrument returns
			from one of its calibration mode to SAMPLE Mode.
1			Selects the gas measurement mode in which the	NO;	NOx–NO
	MEASURE_MODE		instrument is to operate. NOx only, NO only or NOx and NO	NOx;
			simultaneously.	NOx–NO
2	STABIL_GAS		Selects which gas measurement is displayed when the	NO; NOx;	NOx
			STABIL test function is selected	NO2;
3	TPC_ENABLE		Enables or disables the Temperature and Pressure	ON/OFF	ON
			Compensation (TPC) feature (Section 13.9.2).
4	DYN_ZERO 1		Dynamic zero automatically adjusts offset and slope of the		OFF
			NO and NOX response when performing a zero point	ON/OFF
			calibration during an AutoCal (see Section 9.5).
5	DYN_SPAN 1		Dynamic span automatically adjusts the offsets and slopes		OFF
			of the NO and NOx response when performing a sp point	ON/OFF
			calibration during an AutoCal (see Section 9.5).
6	IZS_SET		Sets the internal span gas generator’s permeation tube		51 C
			oven temperature. Changing this temperature will impact	30°C - 70°C	°
			the NO2 permeation rate (Section 3.3.2.5).
7	CONC_PRECISION		Allows the user to set the number of significant digits to the	AUTO, 1, 2,	AUTO
			right of the decimal point display of concentration and
				3, 4
			stability values.
8			Adjusts the speed of the analyzer’s clock. Choose the +	-60 to +60	0 sec
	CLOCK_ADJ		sign if the clock is too slow, choose the - sign if the clock is
				s/day
			too fast.
			Allows turning ON and OFF the ability to span the analyzer
9	CAL_ON_NO2		with NO2, in which case the instrument acts as if NO and	ON or OFF	OFF
			NOX are spanned, even though it is supplied with NO2.
			The NO2 concentration is then zero by default.
1 Use of the DYN_ZERO and DYN_SPAN features are not allowed for applications requiring EPA equivalency.
IMPORTANT			IMPACT ON READINGS OR DATA
		There are more VARS available when using the password, 929, for
		configuration. Use caution when pressing any buttons while in this
		setup. Any changes made may alter the performance of the instrument
		or cause the instrument to not function properly. Note that if there is an
		accidental change to a setup parameter, press EXIT to discard the
		changes.
Note	There is a 2-sec latency period between when a VARS value is changed
	and the new value is stored into the analyzer’s memory. DO NOT turn
	the analyzer off during this period or the new setting will be lost.

Teledyne Analytical Instruments 112