User Manual

WATLOW Series 998 User’s Manual A.9
Appendix
Model Number
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
Not an ANSI symbol.
UL
®
is a registered trademark of the Underwriters Laboratories, Inc.
Slo-Blo
®
is a registered trademark of Littelfuse, Inc.
Series 998
9 9 _ D - _ _ _ _ - _ _ _ _
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
D = Dual-channel hardware
Channel A Input
1 = Basic thermocouple signal conditioner (excluding Type B, R, and S)
2 = Universal signal conditioner (see range information)
Channel B Input
1 = Basic thermocouple signal conditioner (excluding Type B, R, and S)
2 = Universal signal conditioner (see range information)
Channel A Output
C = Dual switched dc, isolated
E = Dual electromechanical relay
1
, Form A, 2A without contact suppression
F = Single, universal process, 0-5VÎ (dc), 1-5VÎ (dc), 0-10VÎ (dc),
0-20mAÎ (dc), 4-20mAÎ (dc), isolated
K = Dual solid-state relay, Form A, 0.5A, without contact suppression
Channel B Output
C = Dual switched dc, isolated
E = Dual electromechanical relay
1
, Form A, 2A without contact suppression
F = Single, universal process, 0-5VÎ (dc), 1-5VÎ (dc), 0-10VÎ (dc),
0-20mAÎ (dc), 4-20mAÎ (dc), isolated
K = Dual solid-state relay, Form A, 0.5A, without contact suppression
Output 3
A = None
B = Solid-state relay, Form A, 0.5A, with RC suppression
C = Switched dc, isolated
J = Electromechanical relay
1
, Form A or B, 5A without contact suppression
K = Solid-state relay, Form A, 0.5A without contact suppression
M = Retransmit, 0-20mAÎ (dc), 4-20mAÎ (dc)
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
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
K = Solid-state relay, Form A, 0.5A without contact suppression
R = EIA/TIA-232 communications, opto-isolated
S = EIA/TIA-485, EIA/TIA-422 communications, opto-isolated
U = EIA/TIA-232, EIA/TIA-485 communications, opto-isolated
T = External signal conditioner power supply, 5, 12 or 20VÎ (dc) @ 30mA
Display Color (Upper/Lower)
GG = Green/Green
GR = Green/Red
RG = Red/Green
RR = Red/Red
XX = Custom overlays, parameters, or software
Ordering Information — (1083)
To order, complete the code number with the information below:
NOTE: User documentation may be available in French, German, Spanish, Italian and Dutch, as well
as English. Check Watlow’s website (www.watlow.com/) for availability. Specify language at time of
order.