Rosemount Manual: Rosemount 2130 Replacement and Calibration of Electronic Spare (PCB) Cassettes Manuals & Guides
Manual Supplement
00809-0200-4130, Rev CA
December 2013
Replacement and Calibration of
Rosemount 2130 Electronics Cassettes
Manual Supplement
NOTICE
December 2013
Refer to the Rosemount 2130 Reference Manual (Document Number 00809-0100-4130) for
more instructions. Manuals are available electronically on www.rosemount.com.
Failure to follow these installation guidelines could result in death or serious injury
The Rosemount 2130 is a liquid level switch. It must be installed, connected, commissioned,
operated, and maintained by suitably qualified personnel only, observing any national and
local requirements that may apply
Ensure the wiring is suitable for the electrical current and the insulation is suitable for the
voltage, temperature, and environment
Use the equipment only as specified. Failure to do so may impair the protection provided by
the equipment
Any substitution of non-recognized parts may jeopardize safety and is under no
circumstances allowed
Explosions could result in death or serious injury
Installation of the 2130 in a hazardous environment must be in accordance with the
appropriate local, national, and international standards, codes, and practices. Please review
the Product Certifications section for any restrictions associated with a safe installation
Verify that the operating atmosphere of the 2130 is consistent with the appropriate
hazardous locations certifications
External surface may be hot
Care must be taken to avoid possible burns
Process leaks could result in death or serious injury
Install and tighten process connectors before applying pressure
Do not attempt to loosen or remove process connectors while the 2130 is in service
Electrical shock could cause death or serious injury
If the liquid level switch is installed in a high voltage environment and a fault condition or
installation error occurs, high voltage may be present on leads and terminals
Use extreme caution when making contact with the leads and terminals
Make sure that power to the 2130 is off while making connections
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December 2013
OPERATION MODE
Dry On Mode
Dry
Wet
Wet On Mode
Dry
Wet
Dry On Wet On
Seconds Delay
0.3 0.3
3
30
10
1
3
30
10
1
12
3
OUT
+
-
4
PLC/PNP
Isolate Supply
Before Removing
B
A
Manual Supplement
Replacement and calibration of electronic cassettes
When replacing a damaged or faulty cassette, it is necessary to calibrate the
replacement cassette to the operating frequency of the fork assembly.
Replacement sequence
If this replacement is taking place in a hazardous area, only qualified personnel should
perform the replacement. All work in hazardous areas must be carried out in
accordance to national and local codes of practice. Refer to the Rosemount 2130
manual (00809-0100-4130) for product certifications and safety instructions for
specific hazardous area installations.
Calibration of this device is complex and it may take several attempts before
calibration is successful.
On Intrinsically Safe (I.S.) approved versions of the 2130, it is recommended that
replacement and calibration be performed in a non-hazardous (safe) area.
Note
In I.S. applications, NAMUR cassettes can only be replaced with NAMUR cassettes,
and 8/16 mA cassettes can only be replaced by 8/16 mA cassettes
Non-I.S. cassettes can be interchanged with other non-I.S. cassettes, but the new
label must be fitted and the original part number transferred to the new label
(see “Electrical installation” on page 6 for connections to the electronic cassettes)
Before starting the replacement and calibration procedure, ensure that any controlled
process will not be adversely affected
To replace the cassette, do the following:
1. Isolate and disconnect the power to the 2130, and insulate the ends of the wires.
On a 2130 with a relay cassette, there may be more than one power source.
2. Remove the cover and disconnect the wires, noting any connections (Figure 1), the
LED color (operating mode), and the exact mode switch position (Figure 2) on the
cassette to be replaced.
3. Remove and retain the two fixing screws from the base of the cassette and unplug
the cassette.
4. Plug in the replacement cassette, refit the screws, reconnect the wires, and set the
mode switch to “Wet On” with a one second delay (Figure 3).
5. Reconnect the power to the 2130.
6. Proceed to “Calibration sequence” on page 5.
Figure 1. Top-down view of example cassette inside the housing
A. LED B. Mode Switch and Time Delay
3
Manual Supplement
Dry On Wet On
Seconds Delay
0.3 0.3
30
10
3
30
10
1
3
1
TP
TP
TP
S
N
S
N
(OUTPUT ON)
(OUTPUT ON)
(OUTPUT OFF)
(OUTPUT OFF)
NO MAGNET
MAGNET
Figure 2. Mode switch and setting on the existing cassette
This is an example of how the existing cassette may look.
Dry On Wet On
Here, the switch is set to “Dry On” with a one second delay.
Take note of the actual setting.
0.3 0.3
1
3
10
30
SETTING IS: ___________________________
1
3
10
30
Seconds Delay
Figure 3. Mode switch setting on the replacement cassette
Set the mode switch of the new cassette to “Wet On” with a
one second delay.
December 2013
Figure 4. Magnetic test point
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December 2013
Manual Supplement
Calibration sequence
This section describes what is required for calibration. Calibration sequence steps 3 to
13 are time dependent and must be carried out within the noted times. The purpose of
the time dependency and switching sequence is to prevent an accidental calibration
from occurring.
To calibrate the cassette, do the following:
1. Ensure that the forks are dry, and the mode switch is set to “Wet On” with a one
second time delay (Figure 3).
2. Check that the LED is flashing at a rate of one flash per second.
If it is on continuously, proceed to step 8.
3. Apply magnet to the test-point (as shown on page 4).
4. After a one second delay, the LED will be lit continuously.
5. Within three seconds rotate the mode switch two steps clockwise.
6. After a two second delay, the LED will go out.
7. Within three seconds, rotate the mode switch two steps counter-clockwise.
Proceed to step 13.
8. Apply magnet to test point (as shown on page 4).
9. After a one second delay, the LED will flash at a rate of one flash per second.
10. Within three seconds, rotate the mode switch two steps clockwise.
11. After a two second delay, the LED will go out (stop flashing).
12. Within three seconds, rotate the mode switch two steps counter-clockwise.
13. After a two second delay, the LED should flash twice per second.
14. If the LED is flashing twice per second, the calibration has occurred correctly.
Remove the magnet from the test-point. After a one second delay, the unit will
return to normal operation. Proceed to step 17.
15. If the LED is flashing once per second or it is on continuously, the calibration has
failed. Remove the magnet from the test-point, wait ten seconds, and then repeat
from step 2.
16. If the LED stays off after the two second delay of step 13, the sensor is not working
correctly. Check that the sensor forks are clean and dry. Also, verify there is nothing
jamming or touching the sensor. If no fault is found with the sensor, the entire unit
should be returned for repair.
17. Set the mode switch to the original setting noted in Figure2 and wait five seconds.
18. Set the operating mode to self-check (yellow LED) or normal mode (red LED), as
applicable to your installation.
Instructions are in “Setting the operating mode” on page 12.
19. Replace the cover and check that the system works.
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