Communications Menu (Comm); M400E Internal Variables; Table 6-4: Variable Names (Vars) - Teledyne 400E Instruction Manual

Operating Instructions

6.3.6. Communications Menu (COMM)

The M400E comes with 2 serial communications ports located on the rear panel.
The serial communication ports can be configured to use several different
communications protocols. By default the COM1 port is setup to use RS-232 and
COM2 port is configured to be a half-duplex, RS-485 port.
See Section 6.9 for more information on setting up the analyzer's COM Ports.

6.3.7. M400E Internal Variables

The M400E has several user adjustable software variables that can be used to
manually set certain operational parameters normally automatically set by the
instruments firmware. These are:
Variable
DAS_HOLD_OFF
PHOTO_LAMP
O3_GEN_LAMP
O3_GEN_LOW1
O3_GEN_LOW2
O3_SCRUB_SET
Includes:
O3_SCRUB_SET(LO)
&
O3_SCRUB_SET(HI)
66

Table 6-4: Variable Names (VARS)

Changes the Internal Data Acquisition System (iDAS)
Holdoff timer:
No data is stored in the iDAS 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.
Allows adjustment of the temperature set point for the
Photometer UV Lamp in the Optical Bench.
DO NOT change this set point unless specifically
instructed to by T-API Customer Service Personnel.
(1)
Allows adjustment of the temperature set point for the
UV Lamp in the O
DO NOT change this set point unless specifically
instructed to by T-API Customer Service Personnel.
(1)
Allows adjustment of the O
Low (Mid) Span Calibration point on RANGE1
3-Point Calibration Checks.
See Section 7.5 for more information.
(1)
Allows adjustment of the O
Low (Mid) Span Calibration point on RANGE2
3-Point Calibration Checks.
See Section 7.5 for more information.
(1)
Allows adjustment of the temperature set point for the
heater attached to the Metal Wool Scrubber option
along with set points for both the High and Low alarm
limits for the heater.
DO NOT change this set point unless specifically
instructed to by T-API Customer Service Personnel
Description
(1)
Generator Option.
3
Generator Option for the
3
(1)
Generator Option for the
3
(1)
(1)
Model 400E Ozone Analyzer
Instruction Manual
Legal Values
May be set for
intervals between 0.5
– 20 min
Default=15 min.
0°C - 100°C
Default= 58°C
0°C - 100°C
Default= 58°C
0 ppb – 1500 ppb
(2)
during
Default = 100 ppb
0 ppb – 1500 ppb
(3)
during
Default = 100 ppb
0°C - 200°C
Default= 110°C
P/N 04316 Rev: B