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Appendix
35
WATLOW Series 733/734 Service Manual
Model Number
733/734 = One or two channel microprocessor-based, time and
temperature control; 24VÅ (VAC) power input.
*Order power supply and connector kit(s) separately below.
Display Orientation
3 = Horizontal
4 = Vertical
Display Location
A = Integral (local)
Input Type
1 = Single thermocouple (type J, K E)
2 = Single RTD 1°, curve selectable
4 = Dual thermocouple (type J, K, E);
Order output types 1 & 2
5 = Dual RTD 1°, curve selectable;
Order output types 1 & 2
6 = Dual Input: Channel 1 thermocouple (type J, K, E); and Channel 2
process (0-5VÎ (VDC), 0-10VÎ (VDC), 0-20mA, 4-20mA),
Order output types 1 & 2
Dual-zone units must use ungrounded thermocouples.
Output 1 Type
B = Solid-state relay with RC suppression, form A, 0.4A
C = Switched DC, open collector, non-isolated
D = Mechanical relay, form A, 1A, with suppression
E = Mechanical relay, form A, 1A, without suppression
F = Process, 4-20mA, non-isolated
H = Process, 0-5VÎ (VDC), non-isolated
K = Solid-state relay without RC suppression, form A, 0.4A
Output 2 Type
A = None
B = Solid-state relay with RC suppression, form A, 0.4A
C = Switched DC, open collector, non-isolated
D = Mechanical relay, form A, 1A, with suppression
E = Mechanical relay, form A, 1A, without suppression
F = Process, 4-20mA, non-isolated
H = Process, 0-5VÎ (VDC), non-isolated
K = Solid-state relay without RC suppression, form A, 0.4A
Event Inputs/Outputs
0 = None
1 = 4 Event outputs, switched DC, non-isolated (custom only)
Alarm
A = None
D = Single mechanical relay, form A, 1A, with suppression
Communications (Isolated)
A = None
B = EIA/TIA-422 or EIA/TIA-423
D = EIA/TIA-485
Options
AA = Standard Single Display
7 3 _ A - _ _ _ _ - _ _ A A
Power Supply, Power Connector and Event Input/Output Accessory Kits (Order separately here.)
Part No. Description
A001-0249-0001 = 120VÅ (VAC) - 24VÅ (VAC), stepdown transformer, Class 2, quick connect terminals included.
A001-0249-0002 = 208/240VÅ (VAC) - 24VÅ (VAC), stepdown transformer, Class 2, quick connect terminals included.
A001-0250-0012 = Power input connector kit, 12-pin connector assembly, wire not included.
A001-0250-0009 = Event input/output connector kit, 9-pin connector assembly, wire not included.