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VELTRON II
Air Monitor Corporation
116-011-98.P65 (8/30/10)
VELTRON II - IO&M Manual
9
4.5 – POWER/SIGNAL CONNECTIONS (con't)
Transmitter Output 1 and 2 (Terminals 1, 2, and 3).
These outputs are sourced (powered) by the VELTRON II.
4-20mADC: Maximum load resistance is 750 ohms.
0-10VDC:
Minimum load resistance is 5000 ohms.
0-5VDC:
Minimum load resistance is 2500 ohms.
Analog Output 3 and 4 (Terminals 4, 5, and 6).
These outputs are sourced (powered) by the VELTRON II.
4-20mADC: Maximum load resistance is 750 ohms.
0-10VDC:
Minimum load resistance is 5000 ohms.
0-5VDC:
Minimum load resistance is 2500 ohms.
Special Function Input (Terminals 9 and 10).
Input is required to be sourced (powered) from the customer. Input
can be 4-20mA, 0-5V, or 0-10V (refer to Section 4.6 for selection).
External Purge Start (Terminals 11 and 13).
Customer to provide momentary (0.5 to 10 second unpowered) dry
contact to initiate purge cycle.
Input Power (Terminals 14, 15, and 16).
Power required by VELTRON II must be connected to terminals 15 and
16. Earth ground should be connected to Terminal 14. When powering multiple units from one power source,
polarity must be maintained.
Purge Interrupt (Terminals 17 and 18).
Customer to provide momentary (0.5 to 10 seconds unpowered) dry
contact to interrupt a purge cycle in progress.
AUTO-purge Purge Valves (SV-1A & SV-1B) or Alarm 1 (Terminals 21, 22, and 23).
– For AUTO-purge Option.
– Customer to connect terminals 21 and 22 to AUTO-purge panel (terminal 23 not used).
– Contacts close upon AUTO-purge cycle initiation, remain closed through the programmed Purge Duration, and
open at the start of the After Purge Duration (see Section 5.11).
– For Alarm Option.
– Customer to connect according to desired alarm logic. Figure 4.3 indicates de-energized (alarm off) state.
AUTO-purge Acknowledgment or Alarm 2 (Terminals 24, 25, and 26).
– For AUTO-purge Option.
– Acknowledgment contact for customer use. Contacts close upon AUTO-purge cycle initiation, remain closed
through the entire purge cycle (see Section 5.11).
– For Alarm Option.
– Customer to connect according to desired alarm logic. Figure 4.3 indicates de-energized (alarm off) state.
AUTO-purge Main Air Valve (SV2)(Terminals 27 & 28).
– Customer to connect Terminals 27 & 28 to AUTO-purge Panel.
SECTION 4 – INSTALLATION
Review Factory Set-Up Information Sheet
provided with the unit for your signal type.
Review Factory Set-Up Information Sheet
provided with the unit for your signal type.
Содержание VELTRON II
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