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Quadrature Position or Rate
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Features
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Description Position, Length or Angle Measurement
Available for Totals or Rates
Exceptional Accuracy and Stability
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A zero index pulse,
if available, is interpreted by the transmitter as corresponding to an integral number of
revolutions of the shaft encoder. It is used by the transmitter to correct for any cumulative
pulse count errors. Special circuitry corrects for width of the zero index pulse.
Specifications
Laureate 4-20 mA Transmitter,
Quadrature Input
| Quadrature Inputs | |
| Type Transitions Monitored Max Pulse Rate Internal Counts Position Error |
Differential
or single-ended quadrature |
| Quadrature Position Mode | |
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Zero Adjust Span Adjust |
-999999 to +999999 0 to ±999999 |
| Quadrature Rate Mode | |
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Conversion
Technique |
Inverse
period |
| Analog Output | |
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Output Levels Compliance, 4-20 mA Compliance, 0-10V Output Resolution Output Accuracy Output Update Rate Output Isolation |
4-20 mA and 0-10 Vdc (selectable) 10V ( 0-500 ohm load ) 2 mA ( 5 kOhm load ) 12 bits (4,096 steps) ±0.05% of output span 25/sec max 250V rms working, 2.3 kV rms per 1 minute test |
| Transducer Excitation Output (standard) | |
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Jumper Selection 1 Jumper Selection 2 Jumper Selection 3 |
10V @ 60 mA, isolated to 50V from signal ground 5V @ 50 mA, isolated to 50V from signal ground 15V @ 60 mA, non-isolated |
| Dual Relay Output (optional) | |
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Relay Type Load rating |
Two solid state relays, SPST, normally open,
Form A 120 mA at 130 Vac or 170 Vdc, 28 ohms series resistance. |
| Power Input | |
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Standard power Low power option Frequency Power Isolation |
95-240V AC ±10% or 90-300V DC 12-30V AC or 10-48V DC DC or 47-63 Hz 250V rms working, 2.3 kV rms per 1 min test. |
| Mechanical | |
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Case Dimensions Case Mounting Electrical Connections |
120 x 101 x 22.5 mm 35 mm rail per DIN EN 50022 Detachable screw clamp plug connectors |
| Environmental | |
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Operating Temperature Storage Temperature Relative Humidity |
0°C to
70°C -40°C to 85°C 95% at 40°C, non-condensing |
| Application Examples | |
Using Quadrature for Cutting to Length |
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Controlling the repetitive cutting of material to length is an excellent application of the Laureate quadrature transmitter. The quadrature encoder shares the shaft of a sensing wheel, whose rotation corresponds to lineal displacement of material. The transmitter compares the displacement reading against setpoint information, and then uses its dual relays to first slow down and then cut the material. |
Using Quadrature for X-Y Positioning |
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Accurate X-Y position or rate can be obtained from two shaft encoders, which convert linear position to quadrature signals as a shaft turns. In addition to serving as a transmitter, each Laureate can use its optional dual relay setpoint capability for closed loop control. |
Using Quadrature to Monitor a Drilling Operation |
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Quadrature can be used to track position and vertical drilling speed of the bit in an oil drilling operation. A shaft encoder is rotated by a cable that moves with the drilling shaft. In this application, the same encoder signal is applied to a Laureate quadrature transmitter for position, and to a second quadrature transmitter for rate. Both transmitters can send a 4-20 mA signal to a control room and be alarmed. |
Pinout
Laureate 4-20 mA Transmitter,
Quadrature Input
(shown with optional dual relay
output)
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Quadrature Transmitter with Differential or
Complementary Inputs |
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| Quadrature Transmitter with Single-Ended Inputs |
Ordering
Guide
Laureate 4-20 mA Transmitter,
Quadrature Input
| Create a model
number in this format: TA602QD. This is for a 4-20 mA transmitter,
Standard main board, 95-240 Vac power, isolated dual
solid state relays, and quadrature input
signal conditioner. Includes detachable screw clamp
connectors. |
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Transmitter Type |
TA Laureate 4-20 mA Transmitter. | $235 |
| Main Board |
6 Standard Main Board. 8 Extended Main Board With Standard Main Board: Scalable to ±999,999 to read out position, length or angle from shaft encoders. With Extended Main Board: Scalable to ±999,999 to read out bi-directional rate or position from shaft encoders (not simultaneously). |
NC $40 |
| Power |
0 Isolated 95-240 Vac & 90-300 Vdc 1 Isolated 12-30 Vac & 10-48 Vdc. |
NC $30 |
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Setpoint Output |
0 None. 2 Isolated Dual Solid State Relays. |
NC $30 |
| Input Type | QD Quadrature. | $30 |
| Accessories |
CBL03 RS-232 cable, TA to computer. CBL02 USB to RS-232 cable adapter. |
$19 $39 |
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Order from distributors for shipment to USA or Canada. |
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Order online for international shipment. |
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Resource Pages |
