Digital Control Systems AirSense 310en Instrukcja obsługi - Strona 10

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Cover Replacement

Engage the top center of the cover under the latch at the top
of the base, then press the bottom of the cover onto the base
until it latches.

Field Adjustments

This section describes the features that can be field
configured and the procedures to make these changes. All
these procedures require the closing of one and sometimes
two jumpers.
When making adjustments to units without displays, the
current setting of the value being adjusted is reported by the
analog output. If there is no display, the procedures below
assume that the unit is set to voltage output and only a volt
meter is connected to the analog output terminal.
Note that the scaling of the analog output is not always the
same.
High CO
Limit Adjustment
2
An adjustable high CO
Model 310en. The front panel LED changes from steady to
blinking when the indicated concentration is above the high
CO
limit value. An optional contact closure is available
2
which actuates when the high limit is exceeded.
The High CO
1. Note whether the shorting block at jumper JP5 is
covering both pins or only a single pin, then
borrow the shorting block and slide it over the two
pins of jumper JP3 (see Figure 2 on page 5).
2. If the display is present when JP3 is closed it will
show the current high limit setpoint in ppm CO
If there is no display the current value of the high
CO
500 ppm/Volt. A high CO
indicated by and output voltage of 2.0 volts.
3/9/15
AirSense Model 310en Operator's Manual
limit is a standard feature of the
2
Limit value is adjusted as follows:
2
limit is reported by the analog output scaled at
2
Digital Control Systems
www.dcs-inc.net • 503/246-8110
limit of 1000 ppm is
2
.
2
7
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