Walchem WBLW100 Series Instruction Manual - page 5
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5
2.4 Variables and their Limits
Sensor input settings
Low Limit
High Limit
Conductivity alarm limits
0
30,000
Conductivity alarm dead band
0
30,000
Cell constant
0.01
10
Smoothing Factor
0%
90%
Comp Factor (conductivity linear ATC only)
0%
20%
Installation Factor (Electrodeless conductivity only)
0.5
1.5
Cable length
0.1
3,000
PPM conversion factor (only if units = PPM)
0.001
10.000
Default temperature
-5
500
Calibration Required Alarm
0 days
365 Days
Flow meter input settings
Low Limit
High Limit
Totalizer alarm
0
100,000,000
Volume/contact for units of Gallons or Liters
1
100,000
Volume/contact for units of m
3
0.001
1,000
K Factor for units of Gallons or Liters
0.01
10,000
K Factor for units of m
3
1
100,000
Smoothing Factor
0%
90%
Set Flow Total
0
1,000,000,000
Relay output settings
Low Limit
High Limit
Output Limit Time
1 second
86,400 seconds (0 = unlimited)
Hand Time Limit
1 second
86,400 seconds (0 = unlimited)
Min Relay Cycle
0 seconds
300 seconds
Set Point
Low end of sensor range
High end of sensor range
Duty Cycle Period (On/Off, Dual Set-point modes)
0:00 minutes
59:59 minutes
Duty Cycle (On/Off, Dual Setpoint modes)
0%
100%
Dead Band
Low end of sensor range
High end of sensor range
Feed duration (Flow timer mode)
0 seconds
86,400 seconds
Accumulator volume (Flow timer mode)
0
1,000,000
Feed Percentage (Bleed then Feed mode)
0%
100%
Feed Lockout Time Limit (Bleed & Feed, Bleed then Feed modes)
0 seconds
86,400 seconds
Prebleed to Conductivity (Biocide mode)
1 (0 = no prebleed)
High end of sensor range
Prebleed Time (Biocide mode)
0 seconds
86,400 seconds
Bleed Lockout(Biocide mode)
0 seconds
86,400 seconds
Event duration (Biocide, Timer modes)
0 seconds
86,400 seconds
Proportional band (Time/Pulse Proportional mode, Intermittent
Sampling)
Low end of sensor
range
High end of sensor range
Sample period (Time Proportional mode)
10 seconds
3600 seconds
Sample Time (Intermittent Sampling mode)
0 seconds
3600 seconds
Hold Time (Intermittent Sampling mode)
0 seconds
3600 seconds
Maximum Blowdown (Intermittent Sampling mode)
0 seconds
3600 seconds
Wait Time (Intermittent Sampling mode)
0 seconds
86,400 seconds
Max Rate (Pulse Proportional mode)
10 pulses/minute
480 pulses/minute
Minimum Output (Pulse Proportional mode)
0%
100%
Maximum Output (Pulse Proportional mode)
0%
100%
Analog (4-20 mA) Output settings
Low Limit
High Limit
2.3 Mechanical
Enclosure Material
Polycarbonate
Enclosure Rating
NEMA 4X (IP65)
Dimensions
8” x 8” x 3” (203 mm x 203 mm x 76 mm)
Display
128 x 64 graphic backlit display
Operating Ambient Temp
-4 to 131 °F (-20 to 55 °C)
Storage Temperature
-4 – 176°F (-20 – 80°C)
Mechanical (Sensors) (*See graph)
Sensor
Pressure
Temperature
Materials
Process
Connections
Graphite contacting
conductivity tower
0-150 psi up to 100°F (38°C)*
0- 50 psi at 140°F (60°C)
32-140°F *
(0-60°C)
GFRPP, Graphite, FKM
3/4” NPTF
316 SS contacting
conductivity tower
0-150 psi up to 100°F (38°C) *
0- 50 psi at 140°F (60°C)
32-140°F *
(0-60°C)
GFRPP, 316SS, FKM
3/4” NPTF
High pressure tower
0-300 psi (0-20 bar)*
32-158°F *
(0-70°C)
316SS, PEEK
3/4” NPTF
Electrodeless tower
0-150 psi up to 100°F (38°C)*
0- 50 psi at 140°F (60°C)
32-140°F *
(0-60°C)
PP, PVC, FKM
3/4” NPTF
Low pressure manifold
0-150 psi up to 100°F (38°C)*
0- 50 psi at 140°F (60°C)
32-140°F *
(0-60°C)
GFRPP, PVC, FKM,
Isoplast
3/4” NPTF
High pressure manifold
0-300 psi (0-20 bar)*
32-158°F *
(0-70°C)
Carbon steel, steel, brass
3/4” NPTF
Boiler/condensate
contacting conductivity
0-250 psi (0-17 bar)
32-401°F
(0-205°C)
316SS, PEEK
3/4” NPTM
pH/ORP
LD2
Cond
HP Cond/Steel
0
50
100
150
200
250
300
350
30
40
50
60
70
80
90
10
0
11
0
12
0
13
0
14
0
15
0
16
0
17
0
18
0
°F
Pressure vs. Temperature
PSI
-1.1
4.4
10.0
15.5
21.1
26.6
32.2
37.7
43.3
48.8
54.4
60.0
65.5
71.1
76.6
82.2
°C
Bar
HP pH/ORP/Steel
24.1
20.7
17.2
13.8
10.3
6.9
3.4