User Manual

A.8 WATLOW Series 998 User’s Manual
Appendix
Specifications
Specifications — (1908)
Control Mode
• Dual input, six output, optional retransmit of set point or process
variable.
• Programmable direct- and reverse-acting control outputs per chan-
nel.
• One-step auto-tuning.
Agency Approvals
• UL #873, c-UL File #43684.
• NEMA 4X (IP65) front panel.
• 89/336/EEC Electromagnetic Compatibility Directive:
• EN 55011: 1991 Group 1, Class A Emissions.
• EN 50082-2: 1994 Immunity.
• 73/23/EEC Low Voltage Directive:
• EN 61010-1: 1993 Safety.
Operator Interface
• Dual, four digit LED displays.
Upper: 0.4 inch (10 mm).
Lower: 0.3 inch (8 mm).
• Mode, Auto/Man, Display, Up and Down keys.
Accuracy
• Calibration accuracy and sensor conformity: ±0.1% of span,
±1 LSD, 77°F ±5°F (25°C ±3°C) ambient and rated line voltage
±10%.
• Accuracy span: 1000°F (540°C) minimum.
• Temperature stability: ± 0.2°F/°F (0.1°C/°C) change in ambient.
• Voltage stability: ± 0.01% of span /% of rated line voltage.
Sensors/Inputs
• Contact input for software function select (event input).
• Thermocouple Types B, C
2
, D
2
, E, J, K, N, R, S, T and Pt 2
2
.
• RTD resolution in 1° or 0.1° RTD scales.
• Process variables: 0-20mA, 4-20mA, 0-5VÎ (dc), 1-5VÎ (dc), and
0-10VÎ (dc).
• Sensor break protection de-energizes system for safety. Latching or
non-latching.
• Selectable display of °F, °C or process units.
Input Range
Specified temperature ranges represent the controller's operational
span.
• Thermocouple
Available with basic or universal signal conditioner
Type C
2
32 to 4200°F (0 to 2316°C)
Type D
2
32 to 4200°F (0 to 2316°C)
Type E -328 to 1470°F (-200 to 799°C)
Type J 32 to 1500°F (0 to 816°C)
Type K -328 to 2500°F (-200 to 1371°C)
Type N 32 to 2372°F (0 to 1300°C)
Type T -328 to 750°F (-200 to 399°C)
Pt 2
2
32 to 2543°F (0 to 1395°C)
Available with universal signal conditioner
Type B 1598 to 3300°F (870 to 1816°C)
Type R 32 to 3200°F (0 to 1760°C)
Type S 32 to 3200°F (0 to 1760°C)
•
RTD Resolution (DIN or JIS)
1° (DIN) -328 to 1472°F (-200 to 800°C)
1° (JIS) -328 to 1166°F (-200 to 630°C)
0.1° (DIN and JIS)-99.9 to 999.9°F (-73.3 to 537.7°C)
• Process
-999 to 9999 units for all: 0-5VÎ (dc); 1-5VÎ (dc); 0-10VÎ (dc); 0-
20mA; and 4-20mA.
Output Options
• Dual solid-state relay, Form A, 0.5A @ 24V~ (ac) min., 253V~ (ac)
max., opto-isolated, burst fire switching. Without contact suppres-
sion. Off-state output impedance: 31MΩ.
• Dual switched dc signal provides a minimum turn-on voltage of 3VÎ
(dc) into a minimum 500Ω load; maximum on voltage not greater
than 32VÎ (dc) into an infinite load.
• Dual electromechanical relay
1
, Form A, 2A @ 120/240V~ (ac), 2A
@ 28VÎ (dc), 1/8 hp. @ 120V~ (ac), 125VA @ 120V~ (ac). Without
contact suppression.
• Process, 0-20mA, 4-20mA into 800Ω maximum, 0-5VÎ (dc), 1-
5VÎ (dc) or 0-10VÎ (dc) into 1kΩ minimum load, isolated.
• Electromechanical relay
1
, Form A/B, 5A @ 120/240V~ (ac),
6A @ 28VÎ (dc), 1/8 hp. @ 120V~ (ac), 125VA @ 120V~ (ac).
Without contact suppression.
• External transmitter power supply, 5, 12 or 20VÎ (dc) @ 30mA.
• EIA/TIA-232 communications or EIA/TIA-485, EIA/TIA-422 commu-
nications, opto-isolated.
• Retransmit: 0-20mA, 4-20mA with 600Ω max. load impedance, or
0-5VÎ (dc), 1-5VÎ (dc) and 0-10VÎ (dc) with 500Ω min. load
impedance.
Line Voltage/Power
• 100-240Vı(ac/dc) +10%, -15%; 50/60Hz, ±5%.
• 24 to 28Vı(ac/dc) +10%, -15%; 50/60Hz, ±5%.
• Fused internally (factory replaceable only) Slo-Blo
®
type (time-lag):
2A, 250V for high-voltage versions;
5A, 250V for low-voltage versions.
• Power consumption 16VA maximum.
• Non-volatile memory retains data if power fails.
Operating Environment
• 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 screws, accepts 20-14 gauge wire.
Controller Weight
• 1.0 lb (0.45 kg).
Shipping Weight
• 3.01 lbs (1.35 kg).
Sample/Update Rates
• 2 inputs: 5Hz.
• Retransmit: 1Hz.
• PID: 10Hz.
• Control outputs: 10Hz.
• Alarm outputs: 1Hz.
• Display: 2Hz.
Resolution
• Inputs: 16 bits.