Model number information – Watlow Optimizing Your Process System with the Series 988 Controller User Manual
Page 68
7.11
Optimizing Your Process System with the WATLOW Series 988
How to Choose the Right 988 to Fit Your Application
Series 988/989 Model Number Information
98 _ _ - _ _ _ _ - _ _ _ _
Hardware
6 = Vertical mounting, 24-28 V
7 = Horizontal mounting, 24-28 V
8 = Vertical mounting, 100-240 V
9 = Horizontal mounting, 100-240 V
Software
A = Standard
B = Enhanced (with cascade, ratio, dual PID, differential)
#1 Input
1 = Basic thermocouple signal conditioner
(excluding Type R, S and B)
2 = Universal signal conditioner
#2 Input
0 = None
1 = Basic thermocouple signal conditioner
(excluding Type R, S and B)
2 = Universal signal conditioner
3 = Slidewire feedback
4 = Current transformer
5 = Second digital event (one digital event is standard on all units)
#1 Output
B = Solid state relay, Form A, 0.5A, with RC suppression
C = Switched DC, open collector, isolated
D = *Electromechanical relay, Form C, 5A, with RC supression
E = *Electromechanical relay, Form C, 5A, without RC suppression
F = Universal process, 0-5VDC, 1-5VDC, 0-10VDC, 0-20mA, 4-20mA
K = Solid state relay, Form A, 0.5A, without RC suppression
#2 Output
A = None
B = Solid state relay, Form A, 0.5A, with RC suppression
C = Switched DC, open collector, isolated
D = *Electromechanical relay, Form C, 5A, with RC suppression
E = *Electromechanical relay, Form C, 5A, without RC suppression
F = Universal process, 0-5VDC, 1-5VDC, 0-10VDC, 0-20mA, 4-20mA
K = Solid state relay, Form A, 0.5A, without RC suppression
T = External signal conditioner power supply, 5, 12 or 20VDC @ 30mA
#3 Output
A = None
B = Solid state relay, Form A, 0.5A, with RC suppression
C = Switched DC, open collector, isolated
J = *Electromechanical relay, Form A or B, 5A, without RC suppression
K = Solid state relay, Form A, 0.5A, without RC suppression
M = Retransmit, 0-20mA, 4-20mA
N = Retransmit, 1-5VDC, 0-10VDC, 0-5VDC
T = External signal conditioner power supply, 5, 12 or 20VDC @ 30mA
#4 Output
A = None
B = Solid state relay, Form A, 0.5A, with RC suppression
C = Switched DC, open collector, isolated
D = *Electromechanical relay, Form C, 5A, with RC suppression
E = *Electromechanical relay, Form C, 5A, without RC suppression
K = Solid state relay, Form A, 0.5A, without RC suppression
R = Isolated RS-232 communications
S = Isolated EIA-485/RS-422 communications
T = External signal conditioner power supply, 5, 12 or 20VDC @ 30mA
Display Color (Upper/Lower)
GG = Green/Green
GR = Green/Red
RG = Red/Green
RR = Red/Red
Sensor Ranges
J t/c:
32
to
1500
°F
0
to
816
°C
K t/c:
-328
to
2500
°F
-200
to 1371
°C
T t/c:
-328
to
750
°F
-200
to
399
°C
N t/c:
32
to
2372
°F
0
to 1300
°C
R t/c:
32
to
3200
°F
0
to 1760
°C
S t/c:
32
to
3200
°F
0
to 1760
°C
B t/c:
1598
to
3300
°F
870
to 1816
°C
E t/c:
-328
to
1470
°F
-200
to
799
°C
C t/c:
32
to
4200
°F
0
to 2316
°C
D t/c:
32
to
4200
°F
0
to 2316
°C
Pt 2:
32
to
2543
°F
0
to 1395
°C
1
°RTD (JIS): -328 to 1166°F
-200
to
630
°C
1
°RTD (DIN): -328 to 1472°F
-200
to
800
°C
0.1
°RTD (JIS
and DIN): -99.9 to 999.9
°F
-73.3
to 537.7
°C
0-5VDC:
-999
to
9999
1-5VDC:
-999
to
9999
0-10VDC:
-999
to
9999
0-20mA:
-999
to
9999
4-20mA:
-999
to
9999
0-50mVDC:
-999
to
9999
0-100mVDC: -999
to
9999
Slidewire:
100
to
1200
Ω
Current:
0
to
50mA
Potentiometer:
0
to
1200
Ω
*Electromechanical relays are not recom-
mended for PID control. They are warranted
for only 100,000 contact closures
100
Ω
platinum