 |
Большинство сервисных вопросов может быть решено по телефону при
диалоге состоящем из вопросов и ответов. Ниже Вы найдете стандартные
пути поиска неисправностей, которые могут сразу ответить на Ваши
вопросы. Так же, мы советуем Вам прочитать наши Часто задаваемые вопросы и
Инструкции по установке и обслуживанию в которых Вы, возможно, так
же найдете ответы на Ваши вопросы.
Так же Вы
можете позвонить нашим специалистам:
+7 (095) 792-88-06 (Россия)
+1 (617) 926-10-00
(США),
или отправить нам факс
+7 (095) 258-92-12 (Россия)
+1 (617)
926-43-54
(США).
Если Вы не
смогли найти решение с помощью нижеприведенного руководства,
пожалуйста отправьте нам e-mail
с описанием Вашей проблемы, чтобы
запросить техническую поддержку у эксперта. Наши специалисты
обязательно свяжутся с Вами, поэтому не забудьте указать номера вашего
телефона и факса. В маловероятной ситуации, когда проблема все еще
остается неразрешенной, мы дадим Вам по телефону инструкции о том как
вернуть нам прибор для ремонта или замены.
Полупроводниковые сигнализаторы давления и
температуры
Электромеханические
сигнализаторы давления и вакуума
Электромеханические сигнализаторы температуры
Полупроводниковые сигнализаторы
давления и температуры Серии One
A. There appears to be no
power
Intent: To locate power supply,
interconnection, or One Series
fault.
| |
| |
1. |
Has the unit ever
functioned? |
|
Да |
|
Перейти к шагу A2 |
| Нет |
Перейти к шагу A5 |
|
| 2. |
Is the LCD display
functioning? |
Да |
The unit has power. Перейти к шагу A4 |
| No |
Перейти к шагу A3 |
|
| 3. |
Is the switched output status LED
"ON" or "flashing"? |
Да |
The unit has power. Перейти к шагу A4 |
| Нет |
Перейти к шагу A4 |
|
| 4. |
Using the voltmeter, is the
incoming power supply level between 18 &
30Vdc?
(See Installation & Maintenance
Instructions - Wiring Diagrams) |
Да |
The unit has power. Закончено |
| Нет |
Перейти к шагу A5 |
|
| 5. |
Turn off all power to the unit and
check connections for the incoming power supply wires.
Are they correct and secure? (See Installation &
Maintenance Instructions - Wiring Diagrams
|
Да |
Перейти к шагу A6 |
| Нет |
Перейти к шагу A6 |
|
| 6. |
Restore power to the unit. Ensure
supply voltage is between 18 and 30 VDC. Do the LCD
display and/or switched output status LED
illuminate?
|
Да |
Закончено |
| Нет |
Contact United Electric Controls or their
authorized Distributor for further
assistance | |
B. The switched output does not
appear to be functioning
Intent: To locate
load element, interconnection, or One Series
fault. | |
|
| |
1. |
Turn off all power to the unit and
the load and check that the load is connected and
operating properly. Are the connections correct and
secure? (See Installation & Maintenance Instructions
- Wiring Diagrams)
|
|
Да |
|
Перейти к шагу B2 |
| Нет |
Correct and secure wires. Перейти к шагу
B3. |
|
| 2. |
Reapply power to the unit and record the
following data from the display: Process variable, Set
Point value (use Up arrow key), Deadband value (use Down
arrow key), and Operating Mode (use Left arrow key).
Also record Output Options code from unit's
nameplate.
|
|
Перейти к шагу B3 |
|
| 3. |
Refer
to Table 1. Based on the switch operating mode, set
point, deadband and process variable, should the output
be "ON"?
|
Да |
Перейти к шагу B5 |
| Нет |
Перейти к шагу B4 |
|
| 4. |
Adjust set point and /or deadband so that the
output should turn "ON"
|
Да |
Перейти к шагу B5 |
|
| 5. |
Does the output status LED
correspond to Table
1?
|
Да |
Перейти к шагу B6 |
| Нет |
Contact United Electric Controls or their
authorized Distributor for further
instructions. |
|
| 6. |
What is the output type noted on
the nameplate (D1A, D1B, D1C, D1D)?
|
|
For D1A and D1B: Перейти к шагу B9 |
| |
For D1C and D1D: Перейти к шагу B7 |
|
| 7. |
If the output is Type D1C or D1D,
using a voltmeter, carefully measure the AC voltage
between the One Series Load Terminals and Ground (See
Installation & Maintenance Instructions - Wiring
Diagrams). Using the set point and/or deadband
adjustments, cycle the output ON and Off. Does the
output voltage vary between approx. 0 VAC (OFF) and the
voltage applied to the Load (ON)?
|
Да |
Перейти к шагу B8 |
| Нет |
Contact United Electric Controls or their
authorized Distributer for assistance.
|
|
| 8. |
Then the SSR is cycling ON and OFF.
Turn off power to the One Series and/or the Load,
disconnect the Load from the One Series terminal block
and test the output load wiring for continuity. Does
wiring have continuity?
Note: when using the D1C or D1D to switch
inductive loads, a filter (snubber) may be required for
proper operation. Without the snubber, the SSR may
"chatter" or not switch properly.
|
Да |
Reconnect wires and retest output.
Закончено
|
| Нет |
Repair output load wiring and/or connections as
required. Reconnect and test. Закончено.
Add external snubber to circuit or contact United
Electric Controls or their authorized Distributor for
further assistance (United Electric now offers a SSR
with an integral snubber as an
option).
|
|
| 9. |
If the Output Type is D1A or D1B,
using a voltmeter, measure the DC voltage between the
One Series Switch Output terminations and Ground (See
Installation & Maintenance Instructions - Wiring
Diagrams). Using the set point and/or deadband
adjustments, cycle the output ON and Off. Does the
output voltage vary between LOW (when output is ON) and
HIGH (when output is OFF) - e.g., between approx. 1 VDC
or less and the value of V+?
Does the output voltage
vary between approx. 0 Vac and the voltage applied to
the load?
|
Да |
Перейти к шагу B10 |
| Нет |
Contact United Electric Controls or their
authorized Distributor for further
instructions. |
|
| 10. |
If the output varies, the One
Series output is functioning. Remove power from the One
Series and disconnect the load from the output
connections. Temporarily, connect the Load wire to the
Ground connection. Reapply power. Does the output load
now turn ON?
|
Да |
Contact United Electric Controls or their
authorized Distributor for further
assistance.
|
| Нет |
Check the load element for proper operation and
connections to ensure proper and secure
wiring.
| |
C. The I AM WORKING™ output does
not appear to be functioning
Intent: To locate
load element, interconnection, or One Series
fault | |
| |
1. |
Perform Steps B1 and B2 for the I
AM WORKING™ output. Refer to Table 1 to determine proper
I AM WORKING™ states
|
|
Да |
|
Перейти к шагу C2 |
|
| 2. |
Should the Output status LED be
"ON" or "Flashing"?
|
|
ON: Перейти к шагу C3 |
| |
Flashing: Перейти к шагу C4 |
|
| 3. |
Using the set point and/or deadband
adjustments, change the values so the Output Status is
"Flashing". Is the Output load cycling?
|
Да |
Закончено |
| Нет |
Перейти к шагу C4 |
|
| 4. |
Perform the voltage measurements as outlined in
Steps B9 and B10 for the I AM WORKING™
output.
|
Да |
Закончено | |
D. The 4-20mA output signal does
not appear to be functioning
Intent: To locate
load element, interconnection, or One Series
fault | |
| |
1. |
Turn off all power to the unit and
verify the connections are correct and secure (See
Installation & Maintenance Instructions - Wiring
Diagrams)
|
|
Да |
|
Перейти к шагу D2 |
| Нет |
Correct and secure wires. Перейти к шагу
D2 |
|
| 2. |
Remove the current loop load wire.
Using an ohmmeter, measure the resistance of the current
loop load (4-20mA load connection to Ground). Is this
value less than 500 ohms?
|
Да |
Перейти к шагу D3 |
| Нет |
Check the load connections to ensure proper and
secure connections. If the current loop load exceeds 500
ohms, correct current loop connections and loading.
Перейти к шагу D3. |
|
| 3. |
Connect a milliamp meter in series
with the current loop circuit and apply power to the One
Series. Does the 4-20mA output function
properly?
|
Да |
Remove milliamp meter and reconnect wires.
Закончено. |
| Нет |
Перейти к шагу D4
|
|
| 4. |
Turn off power and disconnect the
current loop connection to the load device. Connect the
meter from the 4-20MA output connection to the Ground
connection. Reapply power - does the 4-20mA output
function properly?
|
Да |
Закончено |
| Нет |
Contact United Electric Controls or their
authorized Distributor for further
assistance. | |
The display reads: VALUE >
SET POINT
Intent: Determine correctness of One
Series
Measurement/Message | |
| |
This indicates that the measured
process variable is higher than the Set Point value and
not less than the Set Point value plus the Deadband
value. The output has "tripped" (either "ON" or "OFF"
based on the Switch Output Mode selection) and has not
reset.
|
|
|
|
Verify Set Point, Deadband, Switch
Output Mode settings and Process
Variable. | |
The display reads: VALUE <
SET POINT
Intent: Determine correctness of One
Series
Measurement/Message | |
| |
This indicates that the measured
process variable is less than the Set Point value and
not greater than the Set Point value plus the Deadband
value. The output has "tripped" (either "ON" or "OFF"
based on the Switch Output Mode selection) and has not
reset.
|
|
|
|
Verify Set Point, Deadband, Switch
Output Mode settings and Process
variable | |
The display reads:
OVERRANGE!
Intent: Determine correctness of
One Series
Measurement/Message | |
| |
This indicates that the measured
process variable has exceeded the maximum range value
and is out of measurement range.
|
|
|
|
Verify process variable
measurements. If the process variable is not over the
range limits, contact United Electric Controls or their
authorized Distributor for further
assistance. | |
The display reads: OUT OF
RANGE!
Intent: Determine correctness of one
Series
Measurement/Message | |
| |
You have attempted to set the product Set Point
and/or Deadband beyond the calibrated range of the
product.
|
|
|
|
Verify the range of the One Series product on the
nameplate. Verify desired Set Point and Deadband values
to ensure that they do not exceed the maximum or minimum
range values.
| |
Table 1 Switch Output Modes:
| Mode |
Contact "Close" |
Deadband is |
Status & I AM WORKING™ Flash |
| High
Limit Alarm |
above
set point |
below
set point |
above
set point |
| High
Limit Shutdown |
below
set point |
below
set point |
above
set point |
| Low
Limit Alarm |
below
set point |
above
set point |
below
set point |
| Low
Limit Shutdown |
above
set point |
above
set point |
below
set point |
Example: For High Limit Alarm, when the pressure goes
above Set Point the output turns "ON". Both the local and remote
status indicators flash, signaling a "tripped" output. The switch
resets once the pressure has dropped below the set point value minus
the deadband, and both the Output Status LED and I AM WORKING™
output signals return to steady ON.
Наверх
| Possible Causes |
Solution |
Electrical:
- Is it
wired correctly?
- Too
much current-burned out switch?
- Dry
circuit-too little current?
- Is a
wire grounded?
- Is
control head subjected to high
temperature?
Mechanical:
- Has
set point changed?
- Plunger binds
- Malfunctioning pressure sensor
- Is
plunger moving or is it depressed regardless of pressure
exerted.
- Has
control been over- pressurized so movement is
distorted?
- Has
sensor been subjected to corrosive
media?
- Pivots binding
|
Electrical:
- Re-wire
- Substitute higher contact switch
- Substitute gold contact switch to minimize
oxidation
- Re-wire
- Use
hi-ambient switch
Mechanical:
- Re-set
- Replace plunger
- Replace sensor
- Replace sensor
- Replace sensor and protect from
over-pressure
- Use
sensor that resists medium or use chemical
seal
- Check
control ambient &
overpressures
|
Problem: Sensor is not operating-or is leaking medium
fluid
|
| Possible Causes |
Solution |
- Over
pressured beyond control specifications
- Is
medium corrosive?
|
- Replace sensor
|
Problem: Switch is
chattering
|
| Possible Causes |
Solution |
- Vibration present?
- Pulses in pressure
line?
|
- Mount
away from vibration or order 12 Series unit.
- Use
pulsation dampener in
line
|
Наверх
| Possible Causes |
Solution |
Electrical:
- Is it
wired correctly?
- Too
much current-burned out switch?
- Dry
circuit-too little current?
- Is a
wire grounded?
- Is
control head subjected to high
temperature?
Mechanical:
- Has
set point changed?
- Plunger binds
- Malfunctioning thermal assembly?
- Is
plunder moving or is it depressed regardless of
temperature at sensor.
- Does head of thermal assembly smell of chemicals or
show liquid?
- Has
control been over-temperatured so movement is
distorted?
- Has
capillary been crimped or cut?
- Has
capillary or bulb or control head been attacked by
corrosive medium or atmosphere?
- Pivots binding
|
Electrical:
- Re-wire
- Substitute higher contact switch
- Substitute gold contact switch to minimize
oxidation
- Re-wire
- Use
hi-ambient switch
Mechanical:
- Re-set
- Replace plunger
- Replace thermal assembly
- Check
control ambient &
overpressures
|
Problem: Sensor is not operating-or is leaking medium
fluid
|
| Possible Causes |
Solution |
- Over
temperature beyond control specifications
- Is
medium corrosive?
|
- Replace sensor
|
Problem: Switch is
chattering
|
| Possible Causes |
Solution |
- Vibration present?
|
- Mount
away from
vibration.
|
Наверх
|
