630T series

Key Features:

These units receive 4-20mA process current inputs and provide isolated 4-20mA output
signals .Each channel operates independently and is isolated from the others to prevent interaction between channels .Galvanic isolation eliminates ground loops, reduces noise, and blocks transient signals

• Two channels in a single unit saves space and reduces costs .
• Signal splitter model (633T) provides two identical isolated outputs from one input signal .
• Built-in isolated excitation supply with short circuit protection can drive up to two field 2-wire process loops .
• Full isolation safely separates each input channel, each output channel, the excitation supply, and power .
• Excellent accuracy and stability ensure reliable operation in hostile environments .
• Low input burden keeps voltage drop to less than 1 .5V for full-scale current .
• Supports wide 0 to 1000 ohm load range and no trimming is required if the load varies .
• Current limiting safely limits output to 27mA .
• Pluggable terminals, zero/span trim pots and power LEDs make installation, maintenance, and long term service easy .

Product Details

Input Range
– 4 to 20mA input (each channel) .
Input Burden
– Voltage drop (631T, 632T): Less than 1 .5V (75 ohms) at full scale .
– Voltage drop (633T): Less than 3 .0V (150 ohms) at full scale .
Input Overvoltage Protection
– Bipolar Transient Voltage Suppressors (TVS) .
Input Excitation
– 24V DC ±10%, 22mA maximum each .Fully isolated . Includes independent current limiting at EXC1 and EXC2 near 23mA, each .
Output Range
– 4-20mA DC output (each channel) .
Output Trim Range
– Zero and full-scale adjustment to ±4% .
Output Limiting
– Outputs are limited to 27mA .
Output Load
– 0 to 1000 ohms (631T) .
– 0 to 950 ohms (632T, 633T) .
Output Load Resistance Effect
– Less than ±0 .01% of output span effect for a ±100 ohm change in load resistance .
Output Response Time (for input step change)
– 25mS typical to 98% of final output value .
– ±0 .05% of output span .Error includes the combined effects of isolator repeatability, hysteresis, terminal point linearity and adjustment resolution .
Temperature Drift
– Better than ±50ppm/°C (±0 .005%/°C) over the ambient temperature range .This specification includes the combined effects of zero and span over temperature .
– -3dB at 50Hz, typical with a 500 ohm load .
Noise Rejection
– Common mode: Better than 100dB at 60Hz, typical .
– Normal mode: -6dB at 60Hz, typical, 500 ohm load .
LED Indicators
– Green, one LED per output channel .
– Constant ON indicates power applied .


Ambient Temperature
– Operating: -25 to 75°C (-13 to 167°F),
– if excitation supplies are used on 632T or 633T
– -25 to 60°C (-13 to 140°F)] Relative Humidity
– 5 to 95% .
Power Requirement
– DC-powered units: 15-36V DC SELV .
– AC-powered units: 90-250V AC (125V DC ±10%)
– 631T: 1 .5 watts without excitation, 2 .4 watts with excitation .
– 632T, 633T: 3 .0 watts without excitation, 4 .8 watts with excitation .
– Inputs, outputs, individual channels, power, and excitation supplies are isolated from each other for common-mode voltages up to 250V AC, or 354V
– DC off ground, on a continuous basis (will withstand 1500V AC dielectric strength test for one minute without breakdown) .
Electromagnetic Field Immunity (EMI)
– Less than ±0 .25% of output span effect under the influence of electromagnetic fields from switching solenoids, commutator motors, and drill motors .
– Meets Immunity Standards Per EN50082-1
– Electrostatic Discharge (ESD) Immunity
– 4KV direct contact and 8KV air-discharge to the enclosure port per EN61000-4-2 .
Radiated Field Immunity (RFI)
– 10V/M, 80 to 1000MHz AM and 900MHz keyed carrier, per EN61000-4-3 and ENV50204 .
Electrical Fast Transient Immunity (EFT)
– 2KV to power and 1KV to signal I/O per EN61000-4-4 .
Conducted RF Immunity (CRFI)
– 10Vrms, 150KHz to 80MHz, per EN61000-4-6 .
Surge Immunity
– 0 .5KV per EN61000-4-5 .
– Emissions Per European Norm EN50081-1
Radiated Frequency Emissions
– 30 to 1000MHz per EN55022 Class B .
– CE marked, UL & cUL listed .
– Hazardous Locations: Class I: Div .2; Groups A, B, C, D