Watlow DIN-A-MITE Style C - Manual (Page 13)

WATLOW DIN-A-MITE Style C User's Manual 13
Fan-Cooled
з
У
1
У 3
7
8
9
10
11
12
13
14
15
16
17
18
19
20 Gain
Bias
Open
Heater
Limit
+
-
+
-
+
-
ALM
ALM
CT1
CT1
CT2
CT2
CT3
CT3
Adjustment
Potentiometers
Signal Alarm
4 5 6
1 2 3
Zone
1
Zone
2
Zone
3
ALM = Alarm
CT = Current Transformer
T1 T2
T3
Heater
Current
Transformers (CT)
CT
black
white
white black
white
Neutral
3-phase, 3-leg Alarm, Shorted SCR and Open Heater Alarm
ç
NOTE:
Adjust the potentiometer
clockwise to increase the
current; counterclockwise to
decrease the current.
Ó
1
WARNING:
Use National Electric (NEC)
or other country-specific
standard wiring practices to
install and operate the DIN-
A-MITE. Failure to do so
may result in damage to
equipment and property,
and/or injury or loss of life.
Ó
3
WARNING:
Only authorized and
qualified personnel should
be allowed to install and
perform preventive and
corrective maintenance on
this unit. Failure to follow
this guideline could result in
damage to equipment, and
personal injury or death.
NOTE:
The shorted SCR alarm
option is not available with
phase angle units.
Torque Guidelines
• Properly torque line and
load terminals to 2.7 Nm (24
in-lb).
• Retorque after 48 hours to
minimize wire cold flow.
• Retorque line and load
terminals every 3 to 6
months.
з
У
1
У 3
3-phase, 2-leg Shorted SCR Alarm
(Model DC2 _ - _ _ [C, F, K, S] _ - S _ _ _ )
(Model DC3 _ - _ _ _ _ - [S, H] _ _ _ )
T1 T2
T3
7
8
9
10
11
12
13
14
15
16
17
18
19
20 Gain
Bias
Open
Heater
Limit
+
-
+
-
+
-
ALM
ALM
CT1
CT1
CT2
CT2
CT3
CT3
Adjustment
Potentiometers
Signal Alarm
4 5 6
1 2 3
Zone
1
Zone
2
Zone
3
ALM = Alarm
CT = Current Transformer
Heater
Fan power required
24V
Î (dc)
120V~ (ac)
240V~ (ac)
(customer supplied)
7
8
9
10
11
12
13
14
15
16
17
18
19
20
1 2 3
4 5 6
Signal Alarm
Gain
Bias
Open
Heater
Limit
+
-
CT1
CT1
Adjustment
Potentiometers
Zone
1
Zone
2
Zone
3
L1
L2 L1
L2
Phase to neutral
100V
Å (ac)
and above
Phase to phase
200V
Å (ac)
and above 24V Î (dc)
Red wire (+)
Black wire (-)
з
У
1
У 3
Shorted SCR Alarm Only
NOTE:
Cooling fan terminals:
Quick connect 1/8" push on,
#16-14 AWG
Amp part no. 640929-1 or
equivalent
4 5 6
15
16
Current
Transformer (CT)
Neutral
T3
T2
T1