Watlow Series 94 - Manual (Page 33)

W a t l o w S e r i e s 9 4 A p p e n d i x ■ A . 9
Appendix
(2291)
Control Mode
• Microprocessor-based, user selectable control modes
• Single input, dual output
• 2.5Hz Input Sampling Rate
• 1Hz Display Update Rate
• Automatic reset on power loss
Operator Interface
• Sealed membrane front panel
• Dual, four-digit red or green displays
• ‰Advance, ¿Up-arrow, ¯Down-arrow, and Reset keys
• User selectable screen display
Accuracy
• Calibration accuracy ±0.1% of span ±1°C at standard conditions
Exceptions:
Type T; 0.12% of span for -200°C to -50°C,
Types R and S; 0.15% of span for 0°C to 100°C
Types B; 0.24% of span for 870°C to 1700°C
• Accuracy span: 1000°F/540°C minimum
• Temperature stability: ±0.1 degree per degree change in
ambient
Sensors/Inputs
• Thermocouple, grounded or ungrounded sensors
• RTD 2- or 3-wire, platinum, 100
Ω
@ 0°C calibration to 0.003850
curve or 0.003916 curve; user selectable
• Sensor break protection de-energizes control output to protect
system
• °F or °C, user selectable
Input Range
Specified temperature ranges represent the controller’s operation-
al span.
• Thermocouple
Type J 32 to 1382°F
(0 to 750°C)
Type K -328 to 2282°F
(-200 to 1250°C)
Type T -328 to 662°F
(-200 to 350°C)
Type N 32 to 2282°F
(0 to 1250°C)
Type S 32 to 2642°F
(0 to 1450°C)
Type B 32 to 3308°F
(0 to 1820°C)
• RTD Resolution
1° -328 to 1292°F
(-200 to 700°C)
0.1° -199.9 to 999.9°F
(-199.9 to 700.0°C)
Output 1 (Limit)
• Electromechanical relay
1 , Form C, 5A @ 120/240V~ maximum,
without contact suppression, rated resistive load, 5A @ 30VÎ
(dc)
2 . Minimum contact current: 100mA @5VÎ (dc).
Output 2 (Alarm)
• Electromechanical relay
1 , Form C, 5A @ 120/240V~ maximum,
without contact suppression, rated resistive load, 5A @ 30VÎ
(dc)
2 . Minimum contact current: 100mA @5VÎ (dc).
• Switched dc signal provides a non-isolated minimum turn on volt-
age of 3VÎ (dc) into a minimum 500
Ω
load; maximum on voltage
not greater than 12VÎ (dc) into an infinite load.
• Solid-state relay 2 , Form A, 0.5A @ 24V~ min., 264V~ max., opto-
isolated burst fire switched, without contact suppression. Off-state
output impedance is 31M
Ω .
• Alarm output can be latching or non-latching, with separate high
and low values. Alarm silencing (inhibit) on power up.
Output Configurations
• Output 1
• Limit output is latching
• Output 2
User selectable as:
• Latching or non-latching
• Process alarm with flashing alarm message
• Process without alarm message
• Alarm with separate high and low set points
• Hysteresis: 1 to 9999°F, 0.1-999.9°F/1 to 5555°C, 0.1 to 555.5°C
switching differential
Line Voltage/Power
• 100-240V~, +10%
3 , -15%; (85-264V~) 50/60Hz, ±5%, 12VA max.
• 12-24Vı (ac/dc), +10%, -15%; (10-26Vı [ac/dc]) 50/60Hz, ±5%,
7 VA max.
• Data retention upon power failure via non-volatile memory
Operating Environment
3
• 32 to 149°F (0 to 65°C)
• 0 to 90% RH, non-condensing
Storage Temperature
• -40° to 185°F (-40° to 85°C)
Terminals
• #6 compression universal head screw terminals, accepts 20-14
gauge wire
• Torque to 1.4 Nm (12 in-lb)
Controller Weight
• 0.4 lb
(0.2 kg)
Shipping Weight
• 0.75 lb (0.34 kg)
Dimensions
• Compact 1⁄16 DIN size and IP65 (NEMA 4X)
4 , front panel makes
the Series 94 easy to apply and maintain in a wide variety of
applications. Unique mounting bezel, gasket and collar make
installation a snap. Use Greenlee punch 60287.
Overall Height: 55 mm (2.1 inches)
Width: 55 mm (2.1 inches)
Depth: 120 mm (4.7 inches)
Bezel Height: 55 mm (2.1 inches)
Width: 55 mm (2.1 inches)
Depth: 15 mm (0.6 inches)
Chassis Height: 45 mm (1.8 inches)
Width: 45 mm (1.8 inches)
Depth: 105 mm (4.1 inches)
Agency Approvals
• FM3545, File #J.I.OD5A1.AF
• IP65, NEMA 4X and NEMA 12
4
• CE approved (See Declaration of Conformity)
1 Electromechanical relays warranted for 100,000 closures only.
Solid-state switching devices recommended for applications
requiring fast cycle times or extended service life.
2 Switching inductive loads (relay coils, etc.) requires using an RC
suppressor. Quencharc from ITW PAKTRON is recommended,
Watlow part number 0804-0147-0000.
3 Operating environment is 0 to 60°C for line voltage exceeding 240V.
4 To effect IP65 (NEMA 4X) rating requires a minimum mounting
panel thickness of 1.5 mm (0.06 inch) and surface finish not
rougher than 812
µ mm (0.32 µ inch). Use Greenlee punch 60287.
Specifications