Watlow Electric 988 Weather Radio User Manual


 
WATLOW Series 988 User’s Manual A.11
Appendix
Model Number
Ordering Information
(1658)
To order, complete the code number to the right with the information below:
9 8 _ _ - ____- ____
Series 988: a single-channel, temperature/process controller,
1 analog input, 1 digital input, 1 analog or digital input, 4 outputs.
Power Supply & Mounting
6 = 24 to 28Vı (ac/dc) nominal, vertical mounting
7 = 24 to 28Vı (ac/dc) nominal, horizontal mounting
8 = 100 to 240Vı (ac/dc) nominal vertical mounting
9 = 100 to 240Vı (ac/dc) nominal horizontal mounting
Software
A = Standard
B = Enhanced (Includes cascade, ratio, |
duplex, dual PID set)
Input 1
1 = Thermocouple only (Excluding Type B, R, and S)
2 = Universal signal conditioner
Input 2
0 = None
1 = Thermocouple only (Excluding Type B, R, and S)
2 = Universal signal conditioner
3 = Slidewire feedback
4 = Current transformer
2
5 = Digital contact event (One digital event is standard on all units)
Output 1
B = Solid-state relay, Form A, 0.5A, with RC suppression (NO & C)
C = Switched dc or open collector, isolated
D = Electromechanical relay
1
, Form C, 5A with RC suppression
E = Electromechanical relay
1
, Form C, 5A without contact suppression
F = Universal process, 0-5VÎ (dc), 1-5VÎ (dc), 0-10VÎ (dc),
0-20mA, 4-20mA, isolated
K = Solid-state relay, Form A, 0.5A, without contact suppression (NO & C)
Output 2
A = None
B = Solid-state relay, Form A, 0.5A, with RC suppression (NO & C)
C = Switched dc or open collector, isolated
D = Electromechanical relay
1
, Form C, 5A with RC suppression (NO, NC & C)
E = Electromechanical relay
1
, Form C, 5A without contact suppression (NO, NC & C)
F = Universal process 0-5VÎ (dc), 1-5VÎ (dc), 0-10VÎ (dc),
0-20mA, 4-20mA, isolated
K = Solid-state relay, Form A, 0.5A, without contact suppression (NO & C)
T = External signal conditioner power supply, 5, 12 or 20VÎ (dc) @ 30mA
Output 3
A = None
B = Solid-state relay, Form A, 0.5A, with RC suppression (NO & C)
C = Switched dc, isolated
J = Electromechanical relay
1
, Form A or B, 5A without contact suppression (NO or NC)
K = Solid-state relay, Form A, 0.5A without contact suppression (NO & C)
M = Retransmit, 0-20mA, 4-20mA
N = Retransmit, 0-5VÎ (dc), 1-5VÎ (dc), 0-10VÎ (dc)
T = External signal conditioner power supply, 5, 12 or 20VÎ (dc) @ 30mA
Output 4
A = None
B = Solid-state relay, Form A, 0.5A, with RC suppression (NO & C)
C = Switched dc or open collector, isolated
D = Electromechanical relay
1
, Form C, 5A with RC suppression (NO, NC & C)
E = Electromechanical relay
1
, Form C, 5A without contact suppression (NO, NC & C)
K = Solid-state relay, Form A, 0.5A without contact suppression (NO & C)
R = EIA/TIA-232 communications, opto-isolated
S = EIA/TIA-485 / EIA/TIA-422 communications, opto-isolated
T = External signal conditioner power supply, 5, 12 or 20VÎ (dc) @ 30mA
U = EIA/TIA-485 / EIA/TIA-232 communications, opto-isolated
Display
GG = Green/Green displays RR = Red/Red displays
GR = Green/Red displays XX = Custom overlays or default settings
RG = Red/Green displays
1
Electromechanical relays
warranted for 100,000 clo-
sures only. Solid-state
switching devices recom-
mended for applications
requiring fast cycle times or
extended service life.
2
A Current Transformer input
cannot be used in conjunc-
tion with a process output
installed on output 1.
Slo-Blo
®
is a registered
trademark of Littelfuse, Inc.
User documentation may be
available in French,
German, Spanish, Italian
and Dutch, as well as
English. Check Watlow’s
web site (www.watlow.com/)
for availability. Specify lan-
guage and quantity at time
of order.
C Appendix.wc 5/14/1999 8:33 AM Page A.11