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T703
DC Input Isolating, Field Configurable Two-Wire Transmitter


TECHNICAL SPECIFICATION (T703)
Input Span Range (Min/Max) See Table 1. Note: Bipolar span selection will move unipolar range to reflect negative offset (e.g., 20mA = ±10mA)
Input Inpedance Ranges 1-4: 5M Ohms, typical
Ranges 5-12: >200k Ohms, typical
Ranges 13-16: 20 Ohms, typical
Output Span (fixed) 4-20mA
Minimum Output Current 3.3mA, typical
Maximum Output Current 24mA, typical
Supply Voltage Range 13 to 80VDC
Maximum Change In Supply Voltage Effect 0.05% of Span
Maximum Changes In Load Effect 0.05% of Span
Loop Voltage Drop 13VDC @ 20mA
Output Current Limiting
Active: 27mA
Fused (fixed): 0.25A
Entity Parameters VOC = 33VDC, ISC = 178.5mA,
CI = 12nF, LI = 0uH
Stability Zero: ± 0.02% of span/°C, max. (±0.05%, bipolar)
Span: ±0.03% of span/°C, max.
Accuracy Overall (Includes best straight line Linearity, Hysteresis & Repeatability @ 25°C): ±0.2% of any adjusted span, max.
Linearity: ±0.1% of range
Hysteresis & Repeatability: ±0.05% of range
Settability: ±0.05% of range
Zero Adjustability 80% “turn-up” of span (max)
Span Adjustability 80% “turn-down” of full-scale range (max)
Response Time (63% response) 100ms, max.
Output Ripple 0.1% of span, rms, typical 0.5%, max.
Normal Mode Rejection 16dB @ 60Hz
Common Mode Rejection 60Hz: 80dB, DC: 120dB
CMR 60Hz: 1000Vrms
DC: 1000VDC
RFI Effect (1.5W, 470MHz at 1.7 ft) <1% of span error
Isolation 1000Vrms maximum, input to output, input to case,output to case.
Temperature Range
Operating: -40 to 80°C
Storage: (-40 to 176°F)
Weight 0.58lbs
Agency Approval FM approved intrinsically safe for hazardous locations, certificate No. J.I. 1V4A5.AX. CSA approved intrinsically safe for hazardous locations, Class I, Division I, Groups A-D, when connected in accordance with manufacturer's drawing 790-0025 (File No. LR42272-40).