operator`s manual static torque transducer and amplifier

operator`s manual static torque transducer and amplifier
OPERATOR’S MANUAL
NORBAR TORQUE TOOLS LTD
Beaumont Road, Banbury,
Oxfordshire, OX16 1XJ
UNITED KINGDOM
Tel + 44 (0)1295 270333
Email [email protected]
NORBAR TORQUE TOOLS PTE LTD
194 Pandan Loop
#07-20 Pantech Business Hub
SINGAPORE 128383
Tel + 65 6841 1371
Email [email protected]
NORBAR TORQUE TOOLS PTY LTD
45–47 Raglan Avenue, Edwardstown,
SA 5039
AUSTRALIA
Tel + 61 (0)8 8292 9777
Email [email protected]
NORBAR TORQUE TOOLS (SHANGHAI) LTD
E Building–5F, no. 1618 Yishan Road,
Minhang District, Shanghai
CHINA 201103
Tel + 86 21 6145 0368
Email [email protected]
NORBAR TORQUE TOOLS INC
36400 Biltmore Place, Willoughby,
Ohio, 44094
USA
Tel + 1 866 667 2279
Email [email protected]
NORBAR TORQUE TOOLS INDIA PVT. LTD
Plot No A-168, Khairne Industrial Area,
Thane Belapur Road, Mahape,
Navi Mumbai – 400 709
INDIA
Tel + 91 22 2778 8480
Email [email protected]
STATIC TORQUE TRANSDUCER AND AMPLIFIER
FOR USE WITH ELECTRONIC TRANSDUCER SYSTEM (E.T.S)
www.norbar.com
NORBAR TORQUE TOOLS (NZ) LTD
B3/269A Mt Smart Road
Onehunga, Auckland 1061
NEW ZEALAND
Tel + 64 9579 8653
Email [email protected]
© Norbar Torque Tools Ltd 2013
Part Number 34139 | Issue 6 | Original Instructions (English)
CONTENTS
Introduction
2
Specifications
2
Amplifier and Transducer Connections
Amplifier
Amplifier Controls
Amplifier Pin Layout
Static Torque Transducer Wiring Diagram
Transducer Lead for ETS
3
3
4
4
5
6
INTRODUCTION
The ETS Static Torque Transducer comes with its own matching amplifier module and share the same serial
and model number. Transducers can be calibrated in either N∙m, lbf∙ft or lbf∙in as standard, but other units of
Torque are available i.e. cN∙m, dN∙m, Kgf∙cm, Kgf∙m, gf∙cm and ozf∙in.
The transducer shaft is made from heat treated stainless steel on to which are bonded strain gauges which
are wired to form a Wheatstone bridge. The strain gauges vary their resistance in direct proportion to the
Torque applied. The small change in resistance causes a change in voltage across the bridge that is then
amplified by the amplifier module.
The amplifier module is calibrated to each transducer and at its heart is an Instrumentation Amplifier.
Housed within the amplifier module are the bridge balance potentiometers, gain setting potentiometer and
bridge test potentiometer along with the range and decimal point coding resistors. The whole is potted in
silicon rubber within a plastic shell.
The amplifier operates from supplies of a +/- 10v and a constant current of 20mA which is delivered to the
bridge via the zero network. The output voltage from the amplifier is fed to the internal circuitry of the ETS.
SPECIFICATIONS
Accuracy:
See calibration certificate supplied with transducer.
Amplifier Output
1.0000 volts Full Scale Defection for N∙m, dN∙m and cN∙m.
1.3558 volts Full Scale Defection for lbf∙ft.
1.1299 volts Full Scale Defection for lbf∙in.
0.9807 volts Full Scale Defection for Kgf∙cm, Kgf∙m and gf∙cm
0.7062 volts Full Scale Defection for ozf∙in
Amplifier Power Requirement:
+/- 10v D.C. Regulated.
Constant Current:
20mA +/- .01 mA
Operating Temperature Range:
-10ºC - +50ºC
Storage Temperature Range:
-20ºC - +70ºC
Temperature Co-efficient:
<+/- 0.01%/ºC. Full Scale Defection on zero
<+/- 0.03%/ºC. Full Scale Defection on span
Maximum Working Overload:
120% of rated capacity
Absolute Maximum Torsion:
150% of rated capacity
NOTE:
If equipment is used in a manner not specified by the manufacturer, the protection
provided by the equipment could be impaired.
1
AMPLIFIER AND TRANSDUCER CONNECTIONS
Amplifier
Pin 1:
Constant current 20mA. input to amplifier.
Pin 2:
+10 volt supply.
Pin 3:
Amplifier output.
Pin 4:
Select decimal point output to ETS.
Pin 5:
0v common, (Connected to Pin F of Transducer via Transducer lead).
Pin 6:
Input from Strain Gauge Bridge, (Connected to Pin A of Transducer via Transducer lead).
Pin 7:
Select Range output to ETS.
Pin 8:
Input from Strain Gauge Bridge, (Connected to Pin B of Transducer via Transducer lead).
Pin 9:
-10 volt supply.
Pin 10:
Test switch input, Shorted to Pin 11 when Test button pressed.
Pin 11:
Supply to Bridge from amplifier, (Connected to Pin D of Transducer via Transducer lead).
Pin 12:
Supply to Bridge from amplifier, (Connected to Pin C of Transducer via Transducer lead).
Pin 13:
Not Used.
2
Amplifier Controls
TOP
The adjustments available are as follows:
Fine Zero:
To remove any temperature drift effect or non-zero reading.
Coarse Zero:
Used for initial bridge balancing, this potentiometer is covered by the label and should not
need adjustment.
Test:
When the TEST switch on the ETS back panel is pushed and held in, the ETS display should
read the full scale capacity to which the transducer has been calibrated. This is only for
indication purposes only and not a calibration check. This potentiometer is covered by the
label and should only need adjustment if the span potentiometer is adjusted.
Span:
This potentiometer is used to calibrate the amplifier to the transducer when the full scale
Torque is applied to the transducer. This potentiometer is covered by a green tamper proof
label and should only need adjustment if recalibrating the transducer.
Amplifier PIN Layout
TOP
BACK VIEW
3
Static Torque Transducer Wiring Diagram
NOTE:
colours in brackets refer to transducers pre August 2000.
Resistance Between Terminals
A to F
350 OHMS
B to F
C to F
350 OHMS
700 OHMS
D to F
C to D
700 OHMS
1400 OHMS
Bridge Signals
4
A
B
Signal Out
Signal Out
C and D
F
Positive Excitation
Negative Excitation
Transducer Lead for ETS (Not Included)
FREE SOCKET
FREE PLUG
Free Plug viewed
from cable end
Free Socket viewed
from cable end
Cable Connectors
NOTE:
A
B
Red (White)
Blue (Green)
C
Green (Red)
D
E
Yellow
-
F
Black (Blue)
Colours in brackets refer to transducer leads pre August 2000.
5
OPERATOR’S MANUAL
NORBAR TORQUE TOOLS LTD
Beaumont Road, Banbury,
Oxfordshire, OX16 1XJ
UNITED KINGDOM
Tel + 44 (0)1295 270333
Email [email protected]
NORBAR TORQUE TOOLS PTE LTD
194 Pandan Loop
#07-20 Pantech Business Hub
SINGAPORE 128383
Tel + 65 6841 1371
Email [email protected]
NORBAR TORQUE TOOLS PTY LTD
45–47 Raglan Avenue, Edwardstown,
SA 5039
AUSTRALIA
Tel + 61 (0)8 8292 9777
Email [email protected]
NORBAR TORQUE TOOLS (SHANGHAI) LTD
E Building–5F, no. 1618 Yishan Road,
Minhang District, Shanghai
CHINA 201103
Tel + 86 21 6145 0368
Email [email protected]
NORBAR TORQUE TOOLS INC
36400 Biltmore Place, Willoughby,
Ohio, 44094
USA
Tel + 1 866 667 2279
Email [email protected]
NORBAR TORQUE TOOLS INDIA PVT. LTD
Plot No A-168, Khairne Industrial Area,
Thane Belapur Road, Mahape,
Navi Mumbai – 400 709
INDIA
Tel + 91 22 2778 8480
Email [email protected]
STATIC TORQUE TRANSDUCER AND AMPLIFIER
FOR USE WITH ELECTRONIC TRANSDUCER SYSTEM (E.T.S)
www.norbar.com
NORBAR TORQUE TOOLS (NZ) LTD
B3/269A Mt Smart Road
Onehunga, Auckland 1061
NEW ZEALAND
Tel + 64 9579 8653
Email [email protected]
© Norbar Torque Tools Ltd 2013
Part Number 34139 | Issue 6 | Original Instructions (English)
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