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DC Voltage or Current Input
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Features
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Description Laureate 4-20 mA output, DC input transmitters provide six voltage ranges and four current ranges, all factory calibrated and jumper selectable. The 200.00 mV and 2.0000 V ranges provide a high input impedance of 1 Gohm to minimize the load on the voltage signal. A 5.000A range measures the IR drop across a built-in 10 mW current shunt. The transmitters can also easily be scaled in software for use with external shunts. Laureate DC input transmitters duplicate the performance and programmable features of their Laureate DC digital panel meter counterparts. Features include exceptional accuracy at high read rate, and optional dual solid state relays for local alarm or control. The transmitters are housed in a DIN rail case that is only 22.5 mm (0.89") thick. Signal connections are via detachable screw-clamp plugs. In addition to the 4-20 mA output that would typically be used for signal transmission in an industrial environment, a 0-10V analog output is selectable. Either selection provides 12-bit (0.025%) resolution of output span and is ultra-linear to within one bit. The output tracks the reading that would be transmitted digitally. For DC signals, this reading has a rated accuracy of ±0.01% of full scale input and can be scaled in software so that its resolution exceeds output resolution. DC transmitter accuracy is set by the DAC and is ±0.05% of output span. Output isolation from signal and power grounds is provided by a separate on-board transmitter power supply, thereby eliminating potential problems caused by ground loops. The supply can an drive 20 mA into a 500 ohm (or lower) load for 10V compliance, or 10V into 5K ohm (or higher) load for 2 mA compliance.Transmitter programming is via a three-terminal RS-232 port using Laurel's PC-based Instrument Setup Software. This software can be downloaded from this website at no charge. The required transmitter-to-PC interface cable is available from Laurel (P/N CBL03). |
Specifications
Laureate 4-20 mA Transmitters,
DC Voltage or Current Input
| Analog Input |
Range |
Resolution | Input Ohms |
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DC Voltage |
200.00 mV |
10 µV |
1 Gohm |
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DC Current |
2.0000 mA |
0.1 µA |
100 ohms |
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Input Resolution Update Rate, Max Max applied voltage Over-current protection |
16 bits (65,536 steps) 50/sec at 50 Hz, 60/sec at 60 Hz. 600 Vac for 20, 200 & 600 V ranges, 125 Vac other ranges. 25x for 2 mA, 8x for 20 mA, 2.5x for 200 mA, 1x for 5 A. |
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| Analog Output | |||
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Output Levels Compliance, 4-20 mA Compliance, 0-10V Output Resolution Output Accuracy Output Isolation |
4-20 mA, 0-20 mA or 0-10 Vdc (selectable) 10V ( 0-500 ohm load ) 2 mA ( 5 kOhm load ) 12 bits (4,096 steps) ±0.05% of output span 250V rms working, 2.3 kV rms per 1 minute test |
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| 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 |
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| 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. |
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| 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. |
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| 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 terminal connectors |
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| 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 |
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Pinout
Laureate 4-20 mA Transmitters,
DC Voltage or Current Input
(shown with optional dual relay
output)
Ordering
Guide
Laureate 4-20 mA Transmitter,
DC Voltage or Current Input
| Create a model
number in this format: TA202DCV1. This example calls out a
4-20 mA output transmitter, standard main board, 95-240
Vac power, isolated dual solid state relays, and a ±200.00 mV
DC input signal. Includes plug-in screw terminal
connectors. |
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Transmitter Type |
TA Laureate Transmitter, Modbus or Laurel ASCII Protocol. | $210 |
| Main Board |
2 Standard Main Board. 4 Extended Main Board. |
NC $40 |
| Note: Extended allows custom curve linearization and rate from successive readings. | ||
| 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 |
| Signal Input |
DC Volts DCV1 ±200.00 mV. DCV2 ±2.0000 V. DCV3 ±20.000 V. DCV4 ±200.00 V. DCV5 ±300.0 V. |
NC |
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DC Amps DCA1 ±2.0000 mA. DCA2 ±20.000 mA. DCA3 ±200.00 mA. DCA4 ±5.000 A. |
NC | |
| Note: The same DC signal conditioner can be user configured for DC Volts or DC Amps, and for process, strain or potentiometer follower signals. It is precalibrated in EEPROM for all DC Volt and DC Amp ranges listed. | ||
| 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 |
