pg 4 of 12
‡ SIGNET
5900 Salinity Monitor
6.2 CALIBRATE Menu
Requirements
System calibration (WET CAL) is required for first-time system setup or periodic sensor verification. System calibration can be performed
with a solution of known salinity, or by comparison to a refractometer. Refer to the WET CAL procedure for calibration details.
Press and hold ENTER key for 2 seconds:
is displayed.
Press keys in sequence to enter menu:
is displayed.
Menu Settings A - J:
(Factory default displays shown in menu
column 1)
A.
Selects cell type and cell value:
• Standard cells: 10.0, or 20.0. Use
10.0 or 20.0 settings.
• Custom (certified) cells: 00.0000 -
999999.
B.
Selects displayed units; should be
selected for conductivity display INFO
ONLY.
C. Sets PPM factor when PPM display
units are selected, 0.01 - 9.99.
D. Sets Min-
>
Max meter dial range
(factory installed dial, 0 - 100).
Contact factory for custom dial
configurations. Does not effect 4 to
20 mA output; set seperately.
E.
Selects WET CAL procedure for first
time system setup or periodic system
recalibration.
Menu items F - I repeat for relay 2 setup.
F.
Sets relay operation mode Low or
High, and setpoint, 00.0000 - 999999.
units.
G. Sets relay hysteresis, 00.0000 -
999999. units. Set to zero to disable
feature
H. Sets relay minimum and maximum
pulse setpoint, 00.0000 - 999999.
units.
I.
Sets relay pulse rate, 000 - 300
pulses/minute.
J.
Sets user defined setup date for
maintenance records. This feature is
not an internal timer or calendar.
CALIBRATE: ----
Enter Key Code
CALIBRATE: XXXX
Enter Key Code
Relay 1: Low
10.0000 PPT >
Last CAL:
02-05-98
Relay 1 Rate
120 Pulses/min
Relay 1 Pulse
00.0000
→
30.0000>
Relay 1 Pulse
10.0000
→
30.0000>
Relay 1 Hys:
02.0000 PPT >
Relay 1 Hys:
04.0000 PPT >
WET CAL:
Press <ENTER>
Min
→
Max: PPT
00000.0
→
0080.00
>
Min
→
Max: PPT
0.0000
→
40.000
>
PPM Factor:
2.00
Units:
uS mS PPM k
Ω
M
Ω
Units:
uS mS PPM k
Ω
M
Ω
Cell: Custom
10.020
Cell: Standard
.01 .1 1 10 20
PPM Factor:
1.95
quick
press
To return to
VIEW:
quick
press
To restore original value:
Mode (top row)
Setpoint (bottom row)
Relay Low or High Mode Selected
Relay Pulse Mode Selected
A.
B.
D.
E.
F.
G.
J.
ENTER
"SAVING"
displayed
Choose:
Change:
Save:
To J
To A
Cell: Standard
10 >
Min
→
Max: PPT
0.0000
→
40.000
>
WET CAL:
>
Relay 1: Low
20.00 PPT >
Mode (top row)
Divisor (bottom row)
H.
Relay 1 Pulse
00.0000
→
30.0000>
I.
Relay 1 Hys:
4.0000 PPT >
Relay 1: Low
20.00 PPT >
Last CAL:
01-01-98 >
C.
PPM Factor:
2.00 >
Mode (top row)
Divisor (bottom row)
Last CAL:
01-01-98
Units:
mS
Relay 1 Rate
120 Pulses/min>
Relay 1 Rate
025 Pulses/min
