Watlow Electric 988 用户手册
A.4
WATLOW Series 988 User’s Manual
Appendix
Specifications
Control Mode
•
•
Dual input, quad output, optional retransmit of set
point or process variable.
point or process variable.
•
Programmable direct and reverse acting control out-
puts.
puts.
•
One-step auto-tuning.
Operator Interface
•
•
Local/remote set point capability.
•
Dual, 4-digit LED displays: upper, 0.4” (10mm); lower,
0.3” (8mm).
0.3” (8mm).
•
Mode, Auto/Man, Display, Up and Down keys.
Input
•
•
Contact input for software function select.
•
Type J, K, T, N, C(W5)
2
, D(W3)
2
, E, R, S, B, Pt 2
2
thermocouple, 1° or 0.1° RTD.
•
0-50mV
Î
(dc), 0-20mA, 4-20mA, 0-5V
Î
(dc), 1-5V
Î
(dc), 0-10V
Î
(dc) process.
•
Slidewire, digital event input or heater current options.
•
Sensor break protection de-energizes control output to
protect system or selectable bumpless transfer to
manual operation. Latching or non-latching.
protect system or selectable bumpless transfer to
manual operation. Latching or non-latching.
•
°F or °C display or process units, user selectable.
Sensor Ranges
J t/c:
J t/c:
32 to
1500°F
or
0
to
816°C
K t/c:
-328 to
2500°F
or
-200
to 1371°C
T t/c:
-328 to
750°F
or
-200
to
399°C
N t/c:
32 to
2372°F
or
0
to 1300°C
R t/c:
32 to
3200°F
or
0
to 1760°C
S t/c:
32 to
3200°F
or
0
to 1760°C
B t/c:
1598 to
3300°F
or
870
to 1816°C
E t/c:
-328 to
1470°F
or
-200
to
799°C
C t/c (W5)
2
:
32 to
4200°F
or
0
to 2316°C
D t/c (W3)
2
:
32 to
4200°F
or
0
to 2316°C
Pt 2
2
:
32 to
2543°F
or
0
to 1395°C
1°RTD (JIS):
-328 to
1166°F
or
-200
to
630°C
1°RTD (DIN): -328 to
1472°F
or
-200
to
800°C
0.1°RTD
(JIS and DIN):-99.9 to 999.9°F
(JIS and DIN):-99.9 to 999.9°F
or -73.3
to 537.7°C
0-5V
Î
(dc):
-999 to
9999
1-5V
Î
(dc):
-999 to
9999
0-10V
Î
(dc):
-999 to
9999
0-20mA:
-999 to
9999
4-20mA:
-999 to
9999
0-50mV
Î
(dc): -999 to
9999
Slidewire:
100 to
1200
Ω
Current:
0 to
50A
Potentiometer:
0 to
1200
Ω
Output Options
•
Solid-state relay, 0.5A @ 24V
Å
(ac) min., 253V
Å
(ac)
max., opto-isolated, burst fire. With or without contact
suppression.
suppression.
•
Open collector: Max. voltage 42V
Î
(dc), max. current
1A.
•
Switched dc signal: Min. turn-on voltage of 3V
Î
(dc)
into min. 500
Ω
load; max. On voltage not greater than
32V
Î
(dc) into an infinite load, isolated.
•
Electromechanical relay
1
, Form C, 5A @ 120/240V
Å
(ac), 6A @ 28V
Î
(dc), 1/8 hp. @ 120V
Å
(ac) or
125VA @ 120V
Å
(ac). With or without contact sup-
pression. Off-state output impedance with RC sup-
pression is 20k
pression is 20k
Ω
.
•
Process, 0-20mA, 4-20mA into 800
Ω
maximum, 0-
5V
Î
(dc), 1-5V
Î
(dc) or 0-10V
Î
(dc) into 1k
Ω
mini-
mum
1
, reverse acting, isolated.
•
Electromechanical relay, Form A/B, 5A @ 120/240V
Å
(ac), 6A @ 28V
Î
(dc), 1/8 hp. @ 120V
Å
(ac) or
125VA @ 120V
Å
(ac). Without contact suppression.
•
External transmitter power supply, 5V ±5% @ 30mA,
12V ±5% @ 30mA or 20V ±5% @ 30mA.
12V ±5% @ 30mA or 20V ±5% @ 30mA.
•
EIA/TIA-232 communications or EIA/TIA-485, EIA/TIA-
422 communications, opto-isolated.
422 communications, opto-isolated.
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%.
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.
ambient.
•
Voltage stability: ± 0.01% of span /% of rated line volt-
age.
age.
Agency Approvals
•
•
UL, C-UL File #43684
•
CE: 89/336/EEC Electromagnetic Compatibility
Directive.
EN 50081-2: 1994 Emissions.
EN 50082-2: 1995 Immunity.
Directive.
EN 50081-2: 1994 Emissions.
EN 50082-2: 1995 Immunity.
•
73/23/EEC Low-Voltage Directive.
EN 61010-1: 1993 Safety.
EN 61010-1: 1993 Safety.
•
NEMA 4X
Terminals
•
•
#6 compression universal head screws (tighten to 5
inch/pounds maximum), accepts 20-14 gauge wire.
inch/pounds maximum), accepts 20-14 gauge wire.
Line Voltage/Power
•
•
100 to 240V
Å
1
(ac) +10%/-15%, 50/60Hz, ± 5%.
•
24 to 28V
‡
1
(ac/dc) +10%/-15%, 50/60Hz, ±5%.
•
16VA maximum.
•
Fused internally (factory replaceable only) Slo-Blo®
type (time-lag): 2A, 250V for high-voltage versions;
5A, 250V for low-voltage versions.
type (time-lag): 2A, 250V for high-voltage versions;
5A, 250V for low-voltage versions.
•
Non-volatile memory retains data if power fails.
Operating Environment
•
•
32 to 149°F (0 to 65°C), 0 to 90% RH, non-condens-
ing.
ing.
Storage Temperature
•
•
-40 to 185°F (-40 to 85°C).
Mechanical
• 1/8 DIN panel mount, NEMA 4X (IP65 equivalent) front
• 1/8 DIN panel mount, NEMA 4X (IP65 equivalent) front
panel.
• Overall width x height x depth:
horizontal - 4.03" x 2.18" x 4.74"
(102mm x 55mm x 120mm);
vertical - 2.18" x 4.03" x 4.74"
(55mm x 102mm x 120mm).
(102mm x 55mm x 120mm);
vertical - 2.18" x 4.03" x 4.74"
(55mm x 102mm x 120mm).
• Depth behind panel; 4.06" (103mm).
• Weight: less than or equal to 14.0oz (0.40kg).
Sample/Update Rates
•
• Weight: less than or equal to 14.0oz (0.40kg).
Sample/Update Rates
•
1 input: 10Hz.
•
2 inputs: 5Hz.
•
Retransmit: 1Hz.
•
Remote set point: 1Hz.
•
PID: 10Hz.
•
Outputs: 10Hz.
•
Display: 2Hz.
•
Alarm Outputs: 1 Hz
Resolution
•
•
Inputs: 16 bits.
•
Outputs: 12 bits.
1
Electromechanical relays are warranted for 100,000 clo-
sures only. Solid-state switching devices are recom-
mended for applications requiring fast cycle times or
extended service life.
mended for applications requiring fast cycle times or
extended service life.
2
Not an ANSI symbol.
(1234)