Dwyer VBT-1 - Manual

Bulletin PC-VBT
The Series VBT Vibration Transmitter continuously detects the vibration in a
system and monitors for unusual operating conditions and potential failure. The
vibration is converted into an analog signal at the current output. The VBT requires
no setup, and there is no software required for configuration. The 2-wire loop power
operation, combined with standard M12 micro cable connector and interchangeable
mounting studs (1/4˝-28 UNF/M8 (2) or the 1/4˝-28 UNF), makes for a fast and
reliable installation.
SAFETY INSTRUCTIONS
• Please read the product description prior to setup of the unit. Ensure that the
product is suitable for your applications without any restrictions.
• The unit conforms to the relevant regulations and EC directives.
• Improper or unintended use may lead to malfunctions of the unit or to unwanted
effects in your application.
• That is why installation, electrical connection, setup, operation and maintenance
of the unit must only be carried out by qualified personnel authorized by the
machine operator.
INSTALLATION
1. Mount only in a thick housing wall. See Figure 1.
2. Ensure that the signal direction is correct.
3. Select either 1/4˝-28 UNF/M8 (2) or the 1/4˝-28 UNF (3) threaded adapter and
insert into the unit (1). Both adapters are supplied. Tighten using a 3 mm allen key.
Tightening torque 8 Nm. See Figure 2.
Specifications - Installation and Operating Instructions
Series VBT Vibration Transmitter
SPECIFICATIONS
Housing Material: 316 SS.
Temperature Limit: -22 to 221°F (-30 to 105°C).
Accuracy: < ±3%.
Connections: M12 connector.
Enclosure Rating: NEMA 6 (IP68).
Electrical Rating: 9.6 to 32 VDC.
Mounting Orientation: Any position.
Nonlinearity: < ±0.25% of span.
Frequency Range: 10 to 1000 Hz.
Output Signal: 4 to 20 mA.
Repeatability: < 0.5%.
Weight: 0.28 lb (0.125 kg).
Agency Approval: CE.
DWYER INSTRUMENTS, INC.
Phone: 219/879-8000 www.dwyer-inst.com
P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A. Fax: 219/872-9057 e-mail: [email protected]
2-1/2˝
[63.25] 7/8˝
[22.23]
1/4˝-28 UNF
M12 CONNECTOR
Ø7/8˝
[22.00]
©Copyright 2014 Dwyer Instruments, Inc. Printed in U.S.A. 5/14 FR# R6-443974-00 Rev. 1
4. Drill and tap a hole at the mounting location: See Figure 2
• M8 hole/depth min. 10 mm. For (2)
• Or 1/4˝ UNF hole/depth min. 13 mm. For (3)
5. Tighten the sensor with a tightening torque of 8 Nm.
WIRING
The unit must be connected by a qualified electrician. The national and international
regulations for the installation of electrical equipment must be adhered also. See
Figure 3.
MAINTENANCE/REPAIR
Upon final installation of the Series VBT, no routine maintenance is required. The
Series VBT is not field serviceable and should be returned if repair is needed. Field
repair should not be attempted and may void warranty.
WARRANTY/RETURN
Refer to “Terms and Conditions of Sales” in our catalog and on our website.
Contact customer service to receive a Return Goods Authorization number before
shipping the product back for repair. Be sure to include a brief description of the
problem plus any additional application notes.
Figure 1
Figure 2
Figure 3