- Frequency input
- DC voltage or DC current output
These transmitters accept periodic or pulse waveform signals such as those originating from tachometers, magnetic transducers, and turbine flow meters, and provide a proportional process current or voltage output signal.
250T: Loop-powered transmitter series
350T: DC-powered transmitter series
450T: AC-powered transmitter series
Ambient Temperature Range
Operating: -13 to 185°F (-25 to 85°C).
Storage: -40 to 185°F (-40 to 85°C).
±0.1% of calibrated span. Includes repeatability, hysteresis, terminal point linearity, and adjustment resolution.
Ambient Temperature Effect
Less than ±0.01% of output span per °F (±0.018% per °C). (Specification includes the combined effects of zero and span over temperature).
RFI: Less than ±0.5% ,of output span effect.
EMI: Less than ±0.25% of output span effect.
Common Mode: 115dB at 60Hz, 100 ohm unbalance.
Normal Mode: Not applicable.
Time for output to reach 98% of output span depends on jumper-selectable frequency range.
Range 1: 8.0 sec response time (98%).
Range 2: 5.0 sec response time (98%).
Range 3: 0.4 sec response time (98%).
-3dB at 25,600Hz, typical.
250T: RLOAD (max.) = (VSUPPLY - 12V) / 20mA.
350T: RLOAD (max.) = (VSUPPLY - 2.5V) / 20mA.
450T: RLOAD = 600 ohms.