Ametek Thermox 2000 ATEX Series User Manual page 56

3-32 | Thermox Series 2000 WDG-HPII / HPIIC - ATEX
Current output connections
Standard current outputs
Current output connections are labeled as follows on the wiring card of
the Series 2000 control unit (see Figure 3-17):
IOUT1+ IOUT1-
IOUT2+ IOUT2-
These current outputs are referenced as current outputs 1 and 2 in soft-
ware (see the Analog Range Key section for help on defining current out-
put settings in software). Be sure to observe polarity when connecting cur-
rent output devices to these terminals.
Current outputs 1 and 2 are capable of driving up to 1200 ohm loads.
The standard control unit with no options provides two current outputs.
These two current outputs (1 and 2) are isolated from the control unit, but
are not isolated from each other. If you have the combustibles option, cur-
rent outputs 3 and 4 are also isolated from the control unit and from cur-
rent outputs 1 and 2.
If you intend to power current outputs from an external power sup-
ply, see the "external Powering and Modulation of External Power
NOTE
Using Current Outputs" appendix.
Combustibles option current outputs
If you have the combustibles option, the connections for current outputs 3
and 4 on the wiring card allow you to monitor combustibles information.
They are labeled as follows:
IOUT3+
IOUT4+
These current outputs are referenced as current outputs 3 and 4 in soft-
ware (see the Analog Range Key section for help on defining current out-
put settings in software). Be sure to observe polarity when connecting cur-
rent output devices to these terminals. These current outputs are only ac-
tive if you have the combustibles card installed in your control unit. See
the "option Card Installation" section in this chapter for help on adding
option cards to the control unit.
IOUT3-
IOUT4-