GF SIGNET 5900 User manual

Pg 1 of 12
‡ SIGNET 5900 Salinity Monitor
‡ SIGNET 5900 Salinity Monitor ENGLISH
3. 4-20 mA Current Output Connections
CAUTION!
• Refer to instruction manual for more details.
• Remove power to unit efore wiring input and output
connections.
• Follow instructions carefully to avoid personal injury.
. Power Connections 2. Compatible Sensor Wiring
Technical Notes:
• To reduce the possi ility of noise interference, isolate AC
power lines from signal lines.
• Maximum 4-20 mA loop impedance is affected y the supply
voltage.
Technical Notes:
• Use three conductor shielded ca le for ca le extensions up to
30 m (100 ft) max.
• Ca le shield MUST e maintained through ca le splice.
Contents
1. Power Connections
2. Compati le Sensor Wiring
3. 4 - 20 mA Current Output Connections
4. Relay Connections
5. Relay Operation
6. Menu Functions
CAUTION!
Never connect 0 VAC or 220 VAC to rear power
terminals. High voltage AC will damage instrument and
void warranty.
Technical Notes:
** 1/8A fuse recommended (customer supplied)
* 4-20 mA output is internally powered (non-isolated),
maximum loop impedance 350 Ω with a 12 V instrument
supply voltage, 950 Ω with a 24 V instrument supply voltage.
To isolate output and prevent ground loop pro lems:
1. Use monitor device with isolated inputs, or
2. Use separate DC supply for 5900 and monitor device, or
3. Power 5900 with 12 - 24 VAC step down transformer
12-24 V
10 W
-
+
12 - 24 VDC
OR
12 - 24 VAC
5900 Terminals
External power supply
= Double Insulated
= DC or AC power
- +
Signal IN
Temp IN
Iso Gnd
Shld
Silver (Shld)
Black
White
Red
+GF+ SIGNET Sensor Range (PPT)
3-2822-1 (10 0) 0 - 80
3-2823-1 (20 0) PPT
20 0 10 0
5900
Terminals
-
+
4-20
mA
-
+
Fuse**
1/8A 4 - 20 mA*
*
5900 Terminals
3-5900.090-1
C (6/01) English
7. Temperature Coefficient
8. Parts and Accessories
9. Specifications
10. Quick Reference Menu Parameters
11. Trou leshooting
12. Maintenance
Total
reset
AUX
output
PLS
output
12
Gnd
+
+
-
+
Gnd
Freq. IN
Sen. Pwr.
Freq. IN
Iso. Gnd
Std Sensor
Patent No D376,328
Flow
Open Collector
Sensor
12-24 V
10 W
LISTED
77CJ
UL
1 2 3 4 5 6 1 2 3 4
1 2
1 2
Total
reset
AUX
output
PLS
output
12
Gnd
+
+
-
+
Gnd
Freq. IN
Sen. Pwr.
Freq. IN
Iso. Gnd
Std Sensor
Patent No D376,328
Flow
Open Collector
Sensor
12-24 V
10 W
LISTED
77CJ
UL
1 2 3 4 5 6 1 2 3 4
1 2
1. 2. 3.
Remove terminal blocks for easy wiring

pg 2 of 12 ‡ SIGNET 5900 Salinity Monitor
PPT
PPT
Low setpoint =
Adjustable hysteresis =
Relay active =
Relay inactive =
High setpoint =
Adjustable hysteresis =
Relay active =
Relay inactive =
5. Relay Operation
5. LOW alarm mode
The relay is active when the solution salinity in Parts Per Thou-
sand (PPT) drops elow the setpoint, and is inactive when the
solution salinity rises a ove the setpoint plus hysteresis.
4. Relay Connections
Two internal relay contact sets (COM, NO, and NC) may e used
for external device control. Front panel LED annunciators indicate
the activation status of each relay. Each relay can control up to
two devices simultaneously. Relay operation modes include Low
alarm, High alarm, and Proportional Pulse.
Common device connections include:
• Pulse mode - metering pump control
• Pulse mode - solenoid valve control
• Low or High mode - warning lamps
• Low or High mode - ells or sirens
• Low or High mode - external heavy-duty relay
Wiring Example (right)
Device A is powered when relay 2 is inactive (front panel LED
"off"). Power is discontinued when the relay 2 setpoint is reached
(front panel LED "on"). Device B is not powered when relay 2 is
inactive. Power is applied after the relay 2 setpoint is reached.
+
-
-
Device
A
External AC/DC
power
+
-
+Device
B
Relay 1Relay 2
NC
C
NO NC
C
NO 5900 Terminals
NO C NC
Relay
Inactive
Relay
Active
NO C NC
Technical Notes:
• Maximum relay contact ratings: 5 A @ 30 VDC, 5 A @ 125
VAC, or 3 A @ 250 VAC
• An external heavy-duty relay must e used for devices with
surge currents or operating currents that exceed the a ove
specifications.
5.2 HIGH alarm mode
The relay is active when the solution salinity (PPT) rises a ove
the setpoint, and is inactive when the solution salinity drops elow
the setpoint plus hysteresis.
5.3 Proportional PULSE mode
The proportional pulse relay configuration is primarily designed for metering pump control. The operator is prompted to enter a minimum
and maximum salinity setpoint and maximum pulse rate for the assigned relay. Relay pulse width is fixed at 130 ms.
• Metering pump chemical addition (dry contact activation type required)
Relay 1
or Relay 2
10
PPT 30
PPT
0 pulses
PPT Relay 1
or Relay 2
30
PPT
10
PPT
PPT
300 pulses
300 pulses
0 pulses
Relay 1 Rate:
300 Pulses/min >
Relay 1: Pulse
10.0000
30.0000>
Relay 1: Pulse
30.0000
10.0000>
Relay 1 Rate:
300 Pulses/min >
Example : As the process salinity (PPT) rises a ove the
minimum pulse setpoint (10 PPT) the relay egins pulsing,
triggering the metering pump for deionized water addition. As the
process salinity continues to rise, pulsing accelerates proportion-
ally until the maximum programmed pulse rate of 300 pulses/
minute and setpoint (30 PPT) is reached, forcing the process
salinity ack down to intended levels (e.g. < 10 PPT).
Example 2: As the process salinity (PPT) falls elow the minimum
pulse setpoint (30 PPT) the relay egins pulsing, triggering the
metering pump for chemical addition. As the process salinity
continues to decrease, pulsing accelerates proportionally until the
maximum programmed pulse rate of 300 pulses/minute and
setpoint (10 ppt) is reached, forcing the process salinity ack up to
intended levels (e.g. < 30 PPT).

Pg 3 of 12
‡ SIGNET 5900 Salinity Monitor
6. Menu Functions
To access either CALIBRATE or OPTIONS menus, press and hold
the ENTER key as illustrated (right):
Menus:
• VIEW menu: Displayed during standard operation. The
operator can navigate through the menu y pressing UP or
DOWN arrow keys.
• CALIBRATE Menu: Contains all critical display setup and
output parameters. A security code feature prevents
unauthorized tampering. The operator is required to enter an
access code for menu access. The same code also unlocks
OPTIONS menus.
• OPTIONS Menu: Contains setup and display features
accessed for minor display or output adjustments.
• Reversible Dials (right)
The 5900 includes a dial kit with 6 reversi le dial faces and
units decals (factory installed dial: 0 - 100). See dial kit for
additional information.
6. VIEW Menu
Menu Displays A - G:
(Factory default displays shown in menu
column 1)
A. Active display of salinity (PPT) and
temperature in degrees celsius (°C) or
fahrenheit (°F).
B. Display of conductivity and
temperature.
C. Loop output display shows the loop
current output level.
D. Range display shows the programmed
min and max meter dial range.
E. Relay 1 display shows the
programmed operation mode and
setpoint for relay 1.
F. Relay 2 display shows the
programmed operation mode and
setpoint for relay 2.
G. Last cali ration shows a user defined
setup date for maintenance records.
This feature is not an internal timer or
calendar.
OPTIONS
CALIBRATE
VIEW
2s 5s
Press &
hold for
access:
ENTER
ENTER
0100
010
PPT
PPT
A.
B.
C.
D.
Choose Change Save
To G
40.0 PPT
+25.0 °C
22.0 mS/cm
+25.0 °C
Loop Output:
20.00 mA
Min→Max: PPT
0.0000→40.0000
E. Relay 1: Low
20.0000 PPT
F. Relay 2: High
40.0000 PPT
To A
G. Last CAL:
01-01-99

pg 4 of 12 ‡ SIGNET 5900 Salinity Monitor
6.2 CALIBRATE Menu
Requirements
System cali ration (WET CAL) is required for first-time system setup or periodic sensor verification. System cali ration can e performed
with a solution of known salinity, or y comparison to a refractometer. Refer to the WET CAL procedure for cali ration 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 e
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
recali ration.
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 disa le
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 kΩMΩ
Units:
uS mS PPM kΩMΩ
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
025Pulses/min

Pg 5 of 12
‡ SIGNET 5900 Salinity Monitor
6.3 WET CAL Procedure
Requirements
Electronic cali ration is performed to exacting standards y +GF+ SIGNET. System cali ration will reduce errors which may e caused
y sensor wire lengths longer than the standard 15 foot length. Wire lengths of 100 feet are accepta le; ca le shield must e
maintained through ca le splice. Cali ration may e done y known solution value or y comparison to a refractometer.
Calibration with NIST Traceable Solutions:
When using cali ration standards tracea le to the National Institute of Standards and Technology (NIST), care must e taken to ensure
the sensor and test solution are at the solution temperature specified on the test solution la el. Care must e taken to prevent
contamination of the cali ration solution. It is recommended to thoroughly rinse the sensor in a small amount of test solution (then
discard) efore placing in any test solution for cali ration purposes. The 2-step WET CAL process first allows for verification or
cali ration of temperature, followed y verification or cali ration of salinity (PPT) using a known process solution.
WET CAL Procedure (Solution cali ration iIllustrated elow)
Note: Always match test solution manufacturer's temperature recommendation.
Temperature:
+025.0 °C >
Temperature:
+025.0 °C >
Display To Change To Accept
Enter known solution salinity or
reference reading
Optional: enter zero to reset factory calibration
(zero MUST be re-entered if currently displayed
to reset factory calibration).
Measured salinity shown
after temperature calibration Press to accept salinity
calibration; display returns to
CALIBRATE MENU in 3
seconds
Press to accept temperature
calibration
ENTER
ENTER
quick press
To exit WET CAL at any time without
saving changes:
Temperature:
+25.7 °C >
A) Solution cal.: place
sensor and thermometer into
standard solution then press
right arrow key
A) Solution cal.: allow approx
3 minutes for stabilization, then
enter solution temperature
Salinity
20.0 PPT
Salinity
20.0 PPT
Salinity
20.0 PPT

pg 6 of 12 ‡ SIGNET 5900 Salinity Monitor
7. Temperature Coefficient (Temp. Comp. %)
Salinity measurement is dependent on temperature. Temperature dependence is usually expressed as the relative change per °C,
commonly known as percent/°C change from 25 °C, or slope of the solution.
Slopes can very significantly depending on process solution type. The factory default temperature compensation factor is 2.00%/°C.
This setting satisfies salinity applications.
8. Parts and Accessories
• Power supply, 120 VAC - 24 VAC, 3-5000.075
• Front snap-on ezel, 3-5000.525 (code 198 840 226)
• Assorted conductivity unit/multiplier decal sheet, 3-5500.612 (code 198 840 231)
• 5900 Salinity Monitor Instruction Sheet, 3-5900.090-1 (code 159 000 080)
Optional surface mount racket
3-5000.598
(code 198 840 225)
Splashproof rear cover
#3-5000.395
(code 198 840 227)
5 x 5 inch adapter plate for
+GF+ SIGNET retrofit
3-5000.399
(code 198 840 224)
Temperature:
Comp %: 1.81
Temperature:
Comp %: 2.00 >
Temperature:
°C °F
20mA Adjust:
20.00 mA
Set 20 mA
00.0000 PPT
Set 4 mA:
00.0000 PPT Set 4 mA: 40.0000 PPT
Display Decimal:
***.**
Display Average:
Off Low High
Display Average:
Off Low High
4 mA Adjust:
3.88 mA
Low -- -- -- -- -- High
ENTER
"SAVING"
displayed
A.
B.
C.
D.
E.
F.
Contrast:
3 >
Display Decimal:
***.** >
Display Average:
Low >
Set 4 mA:
0.0000 PPT
Set 20 mA
40.000 PPT
4 mA Adjust:
4.00 mA > 4 mA Adjust:
4.00 mA
Display Decimal:
****.*
Contrast:
1 2 34 5
Choose Change Save
To I
Contrast:
1 2 3 4 5
quick
press
To return to
VIEW menu:
quick
press
To restore original value:
To A
I.
Temperature:
Comp %: 2.00 >
G.
20mA Adjust:
20.00 mA >
H.
Temperature:
°C > Temperature:
°C °F
20mA Adjust:
19.98 mA
Set 20 mA
40.000 PPT
6.4 OPTIONS Menu
Press and hold ENTER key for 5 seconds:
is displayed.
Press keys in sequence to enter menu:
is displayed.
Menu Settings A - I:
(Factory default displays shown in menu
column 1)
A. Selects LCD display contrast: 5 levels
B. Selects display decimal:
*****. to ***.**
C. Selects LCD display averaging:
Off = 0 seconds, Low= 4 seconds,
High= 8 seconds (affects 4-20 mA
output)
D. Sets 4 mA output setpoint. 4 mA and
20 mA setpoints are reversi le.
E. Sets 20 mA output setpoint. 20 mA
and 4 mA setpoints are reversi le.
F. Sets 4 mA current output: 3.0 to 5.0
mA (overrides 4.00 mA factory
cali ration)
G. Sets 20 mA current output: 19 to 21
mA (overrides 20.00 mA factory
cali ration)
H. Selects temperature display: °C or °F
Recali ration is not required when
switching from celsius to fahrenheit.
I. Selects temperature compensation
OPTIONS: ----
Enter Key Code
OPTIONS: XXXX
Enter Key Code

Pg 7 of 12
‡ SIGNET 5900 Salinity Monitor
9. Specifications
General
Compati le sensors: +GF+ SIGNET 3-28XX-1 Standard and
Certified Series Sensors
Accuracy: ±0.5% PPT
Input range: 1 to 80 PPT optically isolated
Enclosure:
• NEMA 4X/IP65 front
• Dimensions: 1/4 DIN, 96 x 96 x 88 mm (3.8 x 3.8 x 3.5 in.)
• Case materials: ABS plastic
• Keypad material: Sealed 4-key silicone ru er
• Weight: 500 g (18 oz.)
Display:
• Type: Microprocessor controlled air-core meter movement and
acklit alphanumeric 2 x 16 LCD
• Update rate: <2s
• Contrast: User selected
• Relay annunciators: 2 LEDs
• Displayed units: PPT (Salinity), µS, mS, kΩ, MΩ, PPM (TDS)
Environmental
Operating temp.: -10 to 55°C (14 to 131°F), 50°C (122°F) max.
with optional rear cover
Storage temp.: -15 to 80°C (5 to 176°F)
Relative humidity: 0 to 95%, non-condensing
Altitude: 4000 m max.
Pollution degree: 2
Electrical
Power requirements:
• 12 to 24 VDC or 12 to 24 VAC, unregulated, 50-60 Hz,
10 W max.
Temperature input:
• PT1000, 0 to 100°C (32 to 212°F), optically isolated
Dimensions:
Relay outputs (2 sets):
• Mechanical SPDT contacts
• Max. voltage rating: 5 A @ 30 VDC, 5 A @ 125 VAC, or
3 A @ 250 VAC, (power factor = 1.0)
• Hysteresis: User adjusta le
Current output:
• 4 to 20 mA, non-isolated, internally powered, fully adjusta le and
reversi le
• Update rate: <2s
• Max loop impedance: 350 Ω with a 12 V instrument supply
voltage, 950 Ω with a 24 V instrument supply voltage
• Accuracy ±0.1% of max range
Noise immunity: EN50082-2
Noise emissions: EN55011
Safety: EN61010-1
Agency Approvals
• CSA, CE, UL listed
• Manufactured under ISO 9001
88 mm
(3 5 in )
88 mm (3 5 in )
Mounting Clamp
Optional
Splashproof
Rear Cover
88 mm
(3 5 in )
Mounting Panel
Panel Gasket
91 mm
(3 6 in )
76 mm (3 in )
96 mm (3 8 in )
88 mm (3 5 in )
Front View
Panel Cutout
92 x 92 mm
(3 62 x 3 62 in )
Rear View
Side View
96 mm
(3 8 in )
96 mm (3 8 in )
Relay 2
Relay 1
ENTER
0
2
46
8
10
ppt
62 50 PPT
+25 0 °C
4-20
mA
-
+
NC
C
NO NC
C
NO
-
+
Relay 1Relay 2
12-24 V
10 W
Patent No D 376,328 Patent No 5,708,363 Salinity
+GF+ SIGNET
Model #3-5900
®
LISTED
77CJ
UL
®
Signal IN
Red wire
Iso Gnd
Black wire
Shld
Silver wire
Temp IN
White wire
0 055 1 10 100 200 1,000 10,000 200,000 400,000
(18 MΩ) (10 kΩ)
2819-1
2823-1
Conductivity Range (µS)
+GF+ SIGNET Conductivity Sensor Ranges
Sensor Models
Ultra-
Pure Pure Rinse
2821-1
2822-1
2820-1
Salinity Range

pg 8 of 12 ‡ SIGNET 5900 Salinity Monitor
0.2 CALIBRATE Menu Setup Parameters
Relay mode and
setpoint displays
repeat for relay 2
setup
0. Quick Reference Menu Parameters
0. VIEW Menu Setup Parameters
Menu
Parameters Factory Default
Range
Display
Description
• Standard sensor cells:
0 01, 0 1, 1 0, 10 0, 20 0
• Custom sensor cells:
00 0000 - 9999999
µS, mS, PPT
kΩ, or MΩ
1 to 80
Wet Solution or
resistor calibration
• Low or High
• 00 0000 - 9999999
• Low or High
• 00 0000 - 9999999
• Pulse
• 00 0000 - 9999999
000 - 300
pulses/minute
00 - 00 - 00 -
39 - 39 - 99
10 0
mS
0 0000 - 40 000 PPT
n/a
Low
10 0000 PPT
4 0000 PPT
10 0000 - 30 0000
PPT
120
pulses/minute
01 - 01 - 98
A.
B.
C.
D.
E.
F.
G.
H.
I.
Cell: Standard
1 >
Units:
mS
Min→Max: PPT
0.0000→40.0000>
WET CAL:
>
Relay 1: Low
10.0000 PPT
Relay 1 Hys:
4.0000
Relay 1: Pulse
10.0000→30.0000>
Relay 1 Rate:
120 Pulses/min >
Last CAL:
01-01-98
• Sensor type:
and cell constant
Process
Units
Min→Max
meter dial range
System Calibration
Procedure
• Relay 1 mode
• Relay 1 setpoint
Relay 1
hysteresis
• Relay 1 mode
• Relay 1 range
Relay 1
pulse rate
Last calibration
date
Menu
Parameters Factory Default
Range
Display
Description
• Process salinity
• Process temperature
Current loop
output
Min→Max meter
dial range
• Relay 1 mode
• Relay 1 setpoint
• Relay 2 mode
• Relay 2 setpoint
Last calibration
date
• 1 to 80 PPT
• Process temperature
3 - 21 mA
0 055 - 400,000 mS
Low, High, or Pulse,
Low, High, or Pulse,
00 - 00 - 00 -
39 - 39 - 99
n/a
n/a
n/a
0 0000 - 40 000 PPT
Low
20 PPT
High
40 PPT
01 - 01- 98
A.
B.
C.
D.
E.
F.
0.0 PPT
+25.0 °C
Loop Output:
20.00 mA
Min→Max: PPT
0.000→40.000
Relay 1: Low
20.0000 PPT
Relay 2: High
40.0000 PPT
Last CAL:
01-01-98

Pg 9 of 12
‡ SIGNET 5900 Salinity Monitor
0.3 OPTIONS Menu Setup Parameters
Display
contrast
Display
decimal
Display
averaging
4 mA
setpoint
20 mA
setpoint
4 mA
adjust
20 mA
adjust
Temperature
display
Temperature comp
percentage
0 - 5
***** -
*****
Off= 0 sec , Low= 4 sec ,
High= 8 sec
00 0000 -
999999
00 0000 -
999999
3 0 - 5 0 mA
19 - 21 mA
°Celsius or
°Fahrenheit
0 00 % -
9 99 %
3
*** **
Low= 4 sec
00 0000
PPT
40 0000
PPT
4 00 mA
20 00 mA
°C
2 00 %
A.
B.
C.
D.
E.
F.
G.
H.
I.
Menu
Parameters Factory Default
Range
Display
Description
Contrast:
3 >
Display Decimal:
***.**
Display Average:
Low >
Set 4 mA:
0.0000 PPT
Set 20 mA:
40.0000 PPT
4 mA Adjust:
4.00 mA
20 mA Adjust:
20.00 mA >
Temperature:
°C
Temperature
Comp %: 2.00 >

pg 10 of 12 ‡ SIGNET 5900 Salinity Monitor
2. Maintenance
Clean the instrument case and front panel with a soft cloth and a mild liquid soap solution.
. Troubleshooting
Display
1. 0.0 /PPT
- - - - - - °C
or
- - - - - - - PPT
- - - - - - °C
2. 0.0 PPT
25.0 °C
3. - - - - - - - PPT
25.0 °C
4. Too Much Error
Check Sensor
5. Reset to Factory
Cali ration
6. SETUP READ ERROR
Press any key
Problem
Temperature wiring shorted or
temperature element in sensor
ad.
A) Sensor not connected or
improperly connected.
B) Pipe empty or sensor not in
solution.
C) Wrong range selected.
D) TC% set incorrectly for
process temperature.
E) Sensor wiring open.
F) Water too cold for high-purity
water measurement.
A) Sensor not connected or
improperly connected.
B) Wrong range selected.
(cell constant too large)
C) TC% set incorrectly for
process temperature.
Temperature input out of
tolerance during WET CAL
procedure.
Zero entered as solution
conductance or resistance
during WET CAL step 2.
Power fault occurred while
saving setup menu entry.
Solution
A) Verify sensor wiring.
B) Verify instrument temperature input:
• Remove Black and White sensor wires from rear Temp. IN and Iso.
Gnd terminals, then place a 1100 Ω resistor across terminals.
• Power instrument and verify approximately 26.0°C (79°F) on display.
If instrument reads correctly, replace sensor. If error condition
persists, instrument requires factory service.
A) Verify sensor wiring
B) Fill pipe or place sensor in process solution.
C) Choose a sensor with cell constant adequate for process solution.
D) Set TC% to 2%
E) Replace sensor
F) See specifications section for recommended high-purity range and
temperature requirements.
A) Verify sensor wiring including ca le splice; ca le shield must
continue through splice.
B) Choose a sensor with cell constant adequate for process solution.
C) Set TC% to 2%.
Exit WET CAL procedure y pressing UP and DOWN arrow keys
simultaneously, then refer to solution steps 1B a ove to verify sensor
temperature input.
Measured conductivity, resistivity or PPT entered as zero during WET
CAL step 2. Operator can enter zero to quickly recall factory defaults.
Press any key to reload factory defaults then reprogram conductivity
system setup parameters.