Watlow Series 321 - Manual (Page 6)

WATLOW Series 321 User's Manual 6
Installation Specifications Ordering Information
Control Mode
• Countdown timer: hours/minutes, minutes/
seconds
• Timer output modes: Output 1 energized during
countdown only, Output 2 energized at completion
of countdown for a period of 30 seconds
Operator Interface
• Single, four digit (seven segment) display, red
• Three tactile feedback momentary contact or push
button switches
Outputs, Dual
• #1: Mechanical relay form A 6A @ 120V~ (ac),
3A @ 240V~ (ac) no RC contact suppression
• #2: Mechanical relay form A 6A @ 120V~ (ac),
3A @ 240V~ (ac) no RC contact suppression
Safety Interlock
• Dry contact closure, minimum switch open resis-
tance: 1M ohm, maximum switch closed resis-
tance: 500 ohms
Timer Accuracy
• + 0.1% of programmed time
• Timer resolution 1 second
Agency Approvals
• UL 917
• C-UL
Power
• 108 to 132V~ (ac), 57 to 63 Hz
Mechanical
• Square 1/8 DIN panel-mount or behind the panel
flush-mount
• Width x height x depth = 2.677” x 2.677” x 1.50”
(68mm x 68mm x 37.5mm)
Operating Environment
• 0 to 60°C / 32 to 140°F
• 0 to 90% RH non-condensing
Returns Warranty
The Series 321 is warranted to be free of defects in
material and workmanship for 36 months after
delivery to the first purchaser for use, providing
that the unit has not been misapplied. Because
Watlow has no control over its use or misuse, we
cannot guarantee against failure. Watlow's obliga-
tions hereunder, at Watlow's option, are limited to
replacement or refund of the purchase price of a
unit that upon examination proves to be defective
within the warranty period. This warranty does
not apply to damage resulting from transportation,
alteration, misuse or abuse. 1. Call Customer Service: 507-454-5300, or fax:
507-452-4507, for a Return Material
Authorization (RMA) number before returning
any item for repair.
2. Make sure the RMA number is on the outside of
the carton and on all paperwork returned. Ship
on a freight prepaid basis.
3. A restocking charge of 20% of the net price
applies for all stock controls and accessories
returned in like-new condition and within 120
days after shipment. Non-stock and modified
stock items are not returnable.
4. If the unit is unrepairable, it will be returned to
you with a letter of explanation. Repair costs
will not exceed 50% of the original cost.
(1015) (1016)
Custom / Standard
3 2 1 = Standard
XXX = Customer Special
Maximum Countdown Time
M = 99 Minutes (Minutes/Seconds Displayed)
H = 8:59 (Hours/Minutes Displayed)
#1 Output
D = Electromechanical Relay, NO SPST,
6A @ 120V~ (ac), 3A @ 240V~ (ac)
#2 Output
D = Electromechanical Relay, NO SPST,
6A @ 120V~ (ac), 3A @ 240V~ (ac)
Line Voltage
1 = 120V~ (ac), 60 Hz
Mounting Style
0 = Universal Panel Flush-Mount
Overlay / Software
00 = Standard Watlow Identification
01 = No Overlay
XX = Custom Overlays, parameters or software, Consult Factory
Display
R = Red Display Color
T X X X - D D 1 - 0 X X R
To assure proper disposal, Watlow accepts used
321s. Phone (507) 454-5300 for Return Materials
Authorization (RMA) number. Contact your
Watlow representative for details.
Recycling