VS102 Electronic Vibration Switch
ProvibTech
Phone: +1-713-830-7601 Fax: +1-281-754-4972
pvt@provibtech.com
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VS102 Electronic Vibration Switch
User Manual
Installation, operation, maintenance
ProvibTech, Inc.
11011 Brooklet Drive, Suite 360, Houston, Texas 77099, USA
VS102-USR-A-10 COPY RIGHT PROVIBTECH 2008
VS102 Electronic Vibration Switch
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Table of Content
VS102 Electronic Vibration Switch - Introduction ....................................................................................... 2
Specifications ...................................................................................................................................... 2
Physical ............................................................................................................................................... 2
System default setting ......................................................................................................................... 2
VS102 System Installation ......................................................................................................................... 4
Installation - mechanical outline drawing ............................................................................................ 4
Installation – hardware ........................................................................................................................ 6
Installation – field-wiring diagram ........................................................................................................ 7
VS102 Operation ........................................................................................................................................ 8
VS102 display and status .................................................................................................................... 8
VS102 field controls ............................................................................................................................ 8
VS102 zero and alarm set-point configuration ................................................................................... 8
VS102 Maintenance ................................................................................................................................. 10
Order Information .............................................................................................................................. 10
VS102 ZERO (4mA) calibration ........................................................................................................ 12
Trouble shooting ............................................................................................................................... 14
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VS102 Electronic Vibration Switch - Introduction
The VS102 Electronic Vibration Switch is
designed to be the cost effective solution for
vibration switch applications. The VS102’s unique
and rugged design is suitable for harsh
environments and hazardous areas. It has a
universal mounting feature, relays or triacs, and a
4-20mA output.
Specifications
Sensor: internal piezoelectric accelerometer
Frequency Range: 2 to 1000 Hz
4-20mA Source Output: Non-linearity±1%. 600
ohms max. load resistance
Field wiring: Wire clamp type screw terminal
block. Max. wire gauge: 12-22
AWG. 500 Vrms, circuit to case
Buffered Dynamic signal:
Capable of driving 300 meters (1000
feet) of shielded cable (0.03uF max)
Alarms: Dual alarms
Dry-contact relay: 5A 230VAC/115VAC or
5A 30VDC
Triac: 5A 230VAC. Optically Isolated,
Standard NC
Temperature Limit:
-40℃ to +85℃ (-40℉ to +185℉)
Power Supply:
95 - 250VAC@100mA, 50-60Hz, or
22 - 30VDC @ 200mA
Enclosure: Cast Aluminum (copper free)
Coating: Standard plastic coating for all
cased
aluminum parts outside. Mounting
plate, mounting stud and local reset
are 304 stainless steel.
Environmental Rating: NEMA 4X, IP65
Hazard Rating: See order information
Physical
Temperature:
Operation: -40℃ to +85℃ (-40℉ to +185℉)
Storage: -50℃ to +120℃ (-58℉ to +248℉)
Dimensions:
See attached drawing
Weight:
1.4kg (3 lbs)
System default setting
9 Channel Type: default is Acceleration
input, velocity output.
9 Transducer type: internal piezoelectric
accelerometer
9 Transducer location: internal
9 Transducer sensitivity: default is 100mv/g
9 ALERT time delay: default is 6S
9 DANGER time delay: default is 6S
9 System start up time delay: default is
30S*
9 Full scale: default is 25mm/s
9 Measurement type: default is RMS
9 Measurement unit: default is mm/s
9 Alarm type: (Alert; GAP). The default is
Alert
9 Alarm latching**: NO local reset: default is
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non-latching. Local reset: default is
latching
9 Alarm: dual dry contact relays; single dry
contract relays; dual TRIAC NO; dual
TRIAC NC; single TRIAC NO; single
TRIAC NC;. The default is dual dry
contact relays
9 ALERT high: default is 12.5mm/s
9 DANGER high: default is 18.75mm/s
9 GAP high: default is 17.5V
9 GAP low: default is -2V
*Output current is 3mA before power on delay
time.
**Latching: The alarm status of the vibration
switch does not change while the
measured variable goes below the alarm
setpoint after it has alarmed.
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VS102 System Installation
Installation - mechanical outline drawing
Supply
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Note:
The default case has no local Reset.
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Installation – hardware
VS102 has two different mounting plates and two different mounting studs. See figuration below. Be
aware of that VS102 will sense the vibration in the vertical axis reference to the mounting plate.
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Installation – field-wiring diagram
Connector setting:
DANGER
_
+
BUF
J104J101
J102J105
J106
J107
OK
ALERT
RESET/SET
Note: 1.Select Relay/Triac NO/Triac NC as per Alarm option
2. If single alarm is selected, Alert is valid only
Function description:
RST/BYP: Alarms reset / Bypass(When short circuit with COM, OK/TX/BYPASS LED turns red,
alarm status draws back). There are two types of bypass, hardware bypass and
software bypass. When hardware or software bypass is active, the Bypass LED
comes on. Both types of bypass do not take effect on monitoring except the alarm.
They are valid for both Alert alarm and GAP alarm. The default status is inactive.
Bypass has a higher privilege than alarm latch does.
COM: System ground
BUF: Buffered output
4-20mA: Transmitting of overall to up-level PLC/ DCS/monitor/computer
NC1: Alarm 1. Normally closed
ARM1: Alarm 1. Arm
NO1: Alarm1. Normally open
NC2: Alarm2. Normally closed
ARM2: Alarm 2. Arm
NO2: Alarm 2. Normally open
+24V: Power input (DC)
POW+/POW-:Power input(AC)
Caution:
J101 for high voltage power supply and J107 for low voltage. Wrong setting will destroy the
switch!
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VS102 Operation
VS102 display and status
VS102 will have status indication:
9 BUF: Buffered output.
9 OK: green/red LED. Normally green. With not OK or no power supply, the LED is off. In bypass
mode, the LED is red.
9 ALERT: yellow LED
9 DANGER: red LED
VS102 field controls
9 Reset: There are two ways to perform reset: 1. by pressing RESET/SET button; 2. by pressing
Local button; there is a lever on the instrument cover, whose being pressed will cause the alarm
reset. Note: It works only when the measured variable is less than the alarm set-point.
9 Remote reset / Bypass: Brief short the RST/BYP pin to COM will reset the system. Continue
short the RST/BYP pin to COM will disable the alarms to realize bypass.
9 Buffered output: a raw signal can be accessed by the BUF pin. There is 100 ohms output
impedance. The output can drive up to 300 meters (1000 ft) in distance between a condition
monitoring system and VS102.
9 Alarms: User could select it as per category (Dual SPDT Relays Single SPDT Relay Single
SPST Triac, NO Dual SPST Triacs, NO Single SPST Triac, NC Dual SPST Triacs, NC）
9 Power input: VS102 can be configured to work with either high voltage (95 to 250 VAC) or low
voltage (22 to 30 VDC).
VS102 zero and alarm set-point configuration
VS102 can be field configured with zero and alarms set-points.
9 Power on
9 Connect a ampere meter to the 4-20mA terminal
9 Zero adjust: hold down RESET/SETET button for 10s, OK LED and Alert LED flash and the
instrument changes into 4mA calibration mode. Pressing + or – button to make the instrument
output a current of 4mA. Press RESET/SET button again, ALERT LED flash. Three seconds
later, press RESET/SET button again and DANGER LED flash. Three seconds later, press
RESET/SET button again and OK LED, ALERT LED and DANGER LED flash. At last, press
RESET/SET button to withdraw from zero calibration mode.
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9 Adjust Alert: hold down RESET/SET button for 10s, OK LED and Alert LED flash. Press
RESET/SET button again, ALERT LED flash and it changes into Alert calibration mode. Three
seconds later, the ampere meter displays the last set alert set-point (default factory setting is
50% of full scale). Press + or – to adjust it to the desired value. Press RESET/SET button again,
DANGER LED flash. Three seconds later, press RESET/SET button and OK LED, ALERT LED
and DANGER LED flash. At last, press RESET/SET button to withdraw from Alert calibration
mode.
9 Adjust Danger: hold down RESET/SET button for 10s, OK LED and Alert flash. Press
RESET/SET button again, ALERT LED flash. Three seconds later, press RESET/SET button
and DANGER LED flash and the instrument changes into Danger calibration mode. Three
seconds later, the ampere meter displays the last set DAGER set point (default factory setting is
75% of full scale). Press + or – to adjust it to desired value. Press RESET/SET button again OK
LED, ALERT LED and DANGER LED flash. At last, press RESET/SET button to withdraw from
Danger calibration mode.
FLASH LED
4mA Set Alert Set Danger Set End
OK 9 9
ALERT 9 9 9
DANGER 9 9
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VS102 Maintenance
Order Information
VS102-ABCD-EFGG
A: Alarms***
A = 0: Dual SPDT Relays
A = 1*: Single SPDT Relay
A = 2: Single SPST Triac, NO
A = 3: Dual SPST Triacs, NO
A = 4: Single SPST Triac, NC
A = 5: Dual SPST Triacs, NC
B: Conduit Entries
B = 0*: 3/4” NPT
B = 1: M20×1.5
C: Mounting Plate or Mounting Stud
C = 0*: Mounting Plate PT500-13
C = 1: Mounting Plate PT500-14
C = 2: Mounting Stud 3/4” NPT
C = 3: Mounting Stud M20×1.5
D: Power Supply
D = 0*: 115VAC or 230VAC
D = 1: 24VDC
E: Hazardous Area Approvals
E = 0: CE Mark (With Local Reset)
E = 1: Multiple approvals (With Local Reset):
CSA: Class I, Div 1, Groups B, C, D, T4 &
T6
CERTIFICATE: 2079756
ATEX: II2G,Ex dⅡB+ H
2
T4T6
KAMA 09ATEX0080 X
T4@Ta= -40℃ to +100℃
T6@Ta= -40℃ to +70℃
PCEC: ExdllCT4
CE Mark
E = 2: Multiple approvals (No Local Reset):
CSA: Class l, Div 1, Groups A, B, C, D,
T4 &T6
CERTIFICATE: 2079756
ATEX: II2G,Ex dⅡCT4T6
KAMA 09ATEX0080 X
T4@Ta= -40 to +100℃℃
T6@Ta= -40 to +70℃℃
PCEC: ExdllCT4
CE Mark
E = 3*: CE Mark (No Local Reset)
F: 4-20mA Outputs
F = 0: None
F = 1*: 4-20mA
GG: Full Scale
GG = 09: 0 - 5.0g pk
GG = 10: 0 - 10.0g pk
GG = 11: 0 - 20.0g pk
GG = 20: 0 –12.5mm/s pk
GG = 21: 0 –20mm/s pk
GG = 22: 0 –25mm/s pk
GG = 23: 0 –50mm/s pk
GG = 24: 0 –100mm/s pk
GG = 30: 0 –12.5mm/s rms
GG = 31: 0 –20mm/s rms
GG = 32*: 0 –25mm/s rms
GG = 33: 0 –50mm/s rms
GG = 34: 0 –100mm/s rms
GG = 40: 0 –0.5ips pk
GG = 41: 0 –1.0ips pk
GG = 42: 0 –2.0ips pk
GG = 43: 0 –4.0ips pk
GG = 50: 0 –0.5ips rms
GG = 51: 0 –1.0ips rms
GG = 52: 0 –2.0ips rms
GG = 53: 0 –4.0ips rms
Note:
* Factory default
*** Alarm delays 6s and relay works in
non-energized mode. E=0/E=1 default setting is
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alarm latching. E=2/E=3 default setting is alarm
non-latching.
Note: when user set 4-20mA Outputs item to
None, the instrument keeps current output of
3mA.
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VS102 ZERO (4mA) calibration
VS102 can be field calibrated with ZERO (4mA)
9 Power on
9 Connect a ampere meter to the 4-20mA terminal
9 Adjust zero point: hold down RESET/SET button for 10seconds. OK LED and Alert LED flash
and the instrument changes into 4mA calibration mode. At the moment, the ampere meter
displays 4mA. If it doesn’t, press + and/or – button to adjust it to 4mA. Press RESET/SET button
again, ALERT LED flash. Three seconds later, press RESET/SET button and DANGER LED
flash. Three seconds later, press RESET/SET button and OK LED, ALERT LED and DANGER
LED flash. At last, press RESET/SET button to withdraw from zero calibration mode.
FLASH LED 4mA
Set Alert Set Danger Set End
OK 9 9
ALERT 9 9 9
DANGER 9 9
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Mounting Plate , mounting studs and Accessories:
8-R5(0.2")
8(0.31")
135(5.3")
53(2.1")
6(0.24")
2-R3(0.12")
85(3.35")
165(6.5")
(3.46")
165(6.5")
121(4.76")
121(4.76")
77.5(3.05")
20(0.79")
φ108(4.25")
3/4"NPT
or M20×1.5
5(0.20")
25(0.98")
Mounting
Holes
Mounting
Holes
All dimensions in mm (inches)
Mounting Stud
(3/4"NPT or M20×1.5)
PT500-14
PT500-13
Note:
* Cover1: Relates to the E option; if E=0 or 1, the factory default option is Cover1.
** Cover2: Relates to the E option; if E=2 or 3, the factory default option is Cover2.
*** Magnetic ring: One at the factory default setting. When in extremely environment or both ends
of the vibration switch have wires, user should order additional accessories to
acquire good effects. Please refer to figure Trouble Shooting 6 for installation
method.
3/4” NPT seal Cover1* Cover2 ** magnetic ring***
PT500-18 PT500-2 PT500-3 PT580-10
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Trouble shooting
1. The instrument is NOT OK after powered on
Inspect whether its power supply is correct referring to the field wiring diagram; inspect whether
the delay period expired.
2. The instrument has no 4-20mA output
Inspect whether its power supply is correct referring to the field wiring diagram; inspect whether
the cables and 4-20mA terminals are connected correctly. If the power supply is okay, LED
indicates okay, the instrument should outputs a current of within 4-20mA.
3. Hardware zero point and alarm can not be adjust
Inspect whether its power supply is correct referring to the field wiring diagram; inspect whether
the cables and 4-20mA terminals are connected correctly. According to the relevant part of the
user manual, adjust it while the corresponding LED flash. Note, when ALERT LED and
DANGER LED flash, It is needed to wait three seconds before pressing + and/or – to adjust the
set point.
4. Instrument outputs with great error
Ensure that the instrument is installed correctly and reliably. Its terminals are connected
correctly and reliably.
5. Alarm status is abnormal
Inspect whether the instrument is powered correctly referring to the field wiring diagram; the
cables and the terminals are connected tightly. Make sure that the connected instrument’s rated
power suffices the relays and triacs’ requirement (RELAY: 5A 230VAC/115VAC TRIAC: 5A
230V AC). According to the Alarm option in the category, connect terminals correctly, referring to
the field wiring diagram. If the instrument behaves normally, when the alarm set point has been
broken and retained for a time of alarm delay, corresponding LED lights up and relay and triac
activates.
6. Measurement value increases abruptly or causes false alarm when using high frequency
devices(e.g. interphone)
It is caused by the installation method of vibration switch. The ideal method that all the wires of
connecting vibration switch go through the metal conduit. Provibtech recommends to use this
method; if there is no this installation condition in the field, it needs to use magnetic ring as the
appendix shows. If it doesn’t work well, please increase the quantity of magnetic ring according to
the field condition. The installation method is as follows:
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Note: if the effect is not apparent, wind the wire around the magnetic ring in a circle as the following figure
shows or install another magnetic ring adjacent to the first one as the above figures.
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