ohm (20K) and 200,000 ohm (200K) from the factory.
Use the ‘Tare’ feature to remove resistance offset created by lead length. Short
the remote resistor end and ‘Tare’, this will re-zero the input and cancel lead
length resistance. The card provides a DC signal to measure the resistance
input accurately.
3.4 Resistance
Do not apply any external voltage or current to this card; damage
will occur.
Ne pas appliquer de tension ou de courant à cette carte externe;
des dommages.
3.5 Relay Cards
The relay cards are directly related to any alarms that occur on the Hawk 3. The single relay is a
“Form C” (SPDT) relay that activates in relationship to
“SP1”.
The dual relay consists of two Form C” (SPDT) relays that activate in relationship to “SP1” & “SP2”.
The quad relay consists of four “Form A” (SPST) relays that activate in relationship to “SP1” through
“SP4”.
WARNING/CAUTION: “SP3” and “SP4” connections share a common.
All relay contacts are rated at 250 VAC @ 5 amp maximum. The rating of the relay contact
is intended for resistive circuits only. Use a snubber circuit to protect the contacts from
inductive loads.
AVERTISSEMENT / ATTENTION: “SP3” et connexions “SP4” partagent une
commune.
Tous les contacts de relais sont évalués à 250 VAC @ 5 ampères maximum. La
note du contact de relais est destiné uniquement aux circuits résistifs. Utiliser un
circuit de protection pour protéger les contacts à partir de charges inductives.
Figure 3.10
Quad Relay
Figure 3.8
Single Relay
5A
N.C.
COM
N.O.
1
250V~
RELAY OUT
Figure 3.9
Dual Relay
5A
N.C.
COM
N.O.
1
250V~
RELAY OUT
N.C.
COM
N.O.
2
250V~
5A
RELAY OUT
COM
N.O.
1
COM
N.O.
2
N.O.
COM
3
N.O.
4
Figure 3.7
RESISTANCE
Range
IN HI
IN LO
200
2k
20k
200k
14
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