Watlow Electric Series 94 - Manual (Page 2)

Ordering Information
9 4 - 1 - 0 0
Series 94
Microprocessor-based
1 ⁄
16
DIN, single input, dual output
4-digit displays
NEMA 4X (IP65) b Option
A = Without NEMA 4X (IP65) Rating
B = With NEMA 4X (IP65) Rating
CE Option
A = Non CE Compliant
B = CE Compliant
Output 1 (Limit)
D = Electromechanical relay, Form C, 5A,
without contact suppression ac
Output 2 (Alarm)
A = None
C = Switched dc output, non-isolated
D = Electromechanical relay, Form C, 5A,
without contact suppression ac
K = Solid state relay, Form A, 0.5A, without
contact suppression c
Line Voltage/Power
0 =
100-240V~ (high voltage)
1 = 12-24V ı (ac/dc) (low voltage)
Display
Upper/Lower
RR = Red/Red
RG = Red/Green
GR = Green/Red
GG = Green/Green
a Electromechanical relays are not recommended for PID
control. They are warranted only for 100,000 contact closures.
b To effect NEMA 4X (IP65) rating requires a minimum
mounting panel thickness of 0.06 inch (1.5 mm) and surface
finish not rougher than 0.000032 inch (0.000812 mm).
c Switching inductive loads (relay coils, etc.) requires using an
RC suppressor.
Specifications
Control Mode
• Microprocessor-based
• Single input, dual output
• Limit and alarm
Agency Approval
• FM approved, Class 3545, File J.I. 0D5A1.AF
Operator Interface
• Sealed membrane front panel
• Dual, 4-digit red or green displays
• Advance, Increment, Decrement, and Reset keys
Accuracy
• Calibration accuracy and sensor conformity: ±0.1% of span,
±1°C @ 77°F ± 5°F/25°C ± 3°C ambient and rated line
voltage
• Accuracy span: 1000°F/540°C minimum
• Temperature stability: ±0.2°F/°F or ±0.1°C/°C rise in
ambient maximum
• Voltage stability: ±0.01% of span per percent of rated line voltage
Sensors/Inputs
• Thermocouple, grounded or ungrounded sensors
• RTD 2- or 3-wire, platinum, 100
Ω @ 0°C calibration to DIN
curve (0.00385 Ω / Ω /°C) or JIS curve (0.003916 Ω / Ω /°C); user
selectable
• Sensor break protection de-energizes limit output to
protect system
• °F or °C display, user selectable
Input Range
Specified temperature ranges represent the controller’s
operational span.
• Thermocouple
Type B 32 to 3308°F or 0 to 1820°C
Type J 32 to 1382°F or 0 to 750°C
Type K -328 to 2282°F or -200 to 1250°C
Type N 32 to 2282°F or 0 to 1250°C
Type S 32 to 2642°F or 0 to 1450°C
Type T -328 to 662°F or -200 to 350°C
• RTD Resolution (DIN or JIS)
1° -328 to 1292°F or -200 to 700˚C
0.1° -199.9 to 999.9°F or -199.9 to 700.0˚C
Output 1 Limit
• Electromechanical relay
Output 2 Alarm
• Electromechanical relay
• Switched dc
• Solid state relay
Output Specifications
• Electromechanical relay
c , Form C, 5A @ 120/240V~
or 30V Î (dc) maximum, rated resistive load, without contact
suppression.
• Switched dc signal provides a non-isolated minimum turn on
voltage of 3V Î (dc) into a minimum 500 Ω load,
maximum on voltage not greater than 12V Î (dc) into an
infinite load.
• Solid state relay c , Form A, 0.5A @ 24V~ min. to
265V~ max. Opto-isolated, without contact
suppression. Off state output impedance is 31M
Ω .
Output Configurations
Output 1 selections: Limit Control
• Limit output
Output 2 selections:
• Process with flashing alarm message
• Process without alarm message
• Alarm with separate high and low set points
• Hysteresis: 1 to 9999°C/°F
Line Voltage/Power
• 100-240V~ (85-264V~); 50/60Hz ±5%
• 12-24V
ı (ac/dc) (10-26 ı [ac/dc]); 50/60Hz ±5%
• Power consumption 7VA (12 to 24V ı [ac/dc])
12VA (100-240V~)
• Data retention upon power failure via non-volatile memory
Operating Environment
• 32 to 149°F/0 to 65°C at 115V~ line voltage power
• 32 to 140°F/0 to 60°C at 230V~ line voltage power
• 0 to 90% RH, non-condensing
• Storage temperature: -40° to 185°F/-40° to 70°C
Terminals
• Size 6 universal head screw terminals accepts 20-14 gauge wire
Dimensions
Height
2.1" 53 mm
Width 2.1" 53 mm
Overall Depth 4.7" 119 mm
Behind panel depth 4.1" 104 mm
Weight 0.5 lb 0.2 kg
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For other product information, call Watlow’s FAX REPLY: United States +1 (800) 367-0430 • Outside the United States +1 (732) 885-6344
WIN-94-109 11/1/99 11:47 AM Page 2