Model number, Ordering information, Model number a.9 – Watlow Series 998 User Manual
Page 123: Ordering information a.9
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.