borrow the shorting block and slide it over both pins of
jumper JP2 (see Figure 2 on page 4).
5. Use the 'UP' and 'DOWN' buttons (see Figure 2 on page
4) to adjust the reading.
6. When the reading agrees with the concentration of the
calibration gas, remove the shorting block on jumper JP2,
and replace in its original position at jumper JP5.
7. Turn off the calibration gas flow, disconnect the gas
tubing from the calibration nipple and replace its dust
cover. Remove the meter leads from the terminal strip
and replace the front cover (see procedure on page 6).
High CO2 Limit
An adjustable high CO
2
limit is a standard feature of the
model
I-
310e. The front panel LED changes from steady to
blinking when the indicated concentration is above the high
CO
2
limit value. An optional contact closure is available
which opens or closes when the high limit is exceeded.
Adjusting the High CO
2
Limit
The setpoint value is adjusted by closing jumper JP3 (see
Figure 2 on page 4). If the display is present when JP3 is
closed it will show the current high limit setpoint in ppm
CO
2
.
If there is no display this setting can be adjusted by using a
meter connected to the output. In this calibration mode the
analog output is 10,000 ppm at full scale (i.e. 10.0 volts or
20.0 mA). If the voltage output is selected, this scaling
corresponds to 1ppm per millivolt or 1 volt per 1000 ppm.
The setpoint is adjusted with the ‘UP’ and ‘DOWN’ buttons
while JP3 is closed. When JP3 is opened, the new relay
setpoint takes effect and is stored in non-volatile memory.
The setpoint hysteresis is approximately 40 ppm.
INTEC Controls | 12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: (858) 578.7887 & (888) GO.INTEC | inteccontrols.com
Specifications subject to change without notice. |
©
DCS, Inc. | PRE 200217 | Page 14 of 17
I-310e – UserManual
