Section 7.1 Specifications - Omega DRST-AC User Manual

Input limit low/high, error indication levels:
UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See table on page 15
DOWN. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See table on page 15
ZERO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See table on page 15
NONE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See table on page 15
Hysteresis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5% of 'Max. output'
Error detection release delay . . . . . . . . . . . . . . . . . . . . . . . . . . < 2.5 s
Current output specifications:
Active unipolar and bipolar mA:
Programmable ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0...20, 4...20, S4...20, ±10 and ±20 mA
V-curve function, 100-0-100% . . . . . . . . . . . . . . . . . . . . . . . . . . 20-0-20 mA
Load. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ≤ 800 Ω
Passive 2-wire mA:
Programmable ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0...20 and 4...20 mA
V-curve function, 100-0-100% . . . . . . . . . . . . . . . . . . . . . . . . . . 20-0-20 mA
External 2-wire loop supply . . . . . . . . . . . . . . . . . . . . . . . . . . 3.5...30 V
Common specifications current output:
All standard and custom ranges can be selected as Direct or Inverted action.
V-function can be selected for fixed output ranges starting at zero.
Signal range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0...23 mA (unipolar) /
Current limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ≤ 28 mA (unipolar) /
Load stability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ≤ 0.001% of span / 100 Ω
Response time, programmable . . . . . . . . . . . . . . . . . . . . . . . . . 0.0...60.0 s
Output limitation at outside range . . . . . . . . . . . . . . . . . . . . . . . See table on page 14
Voltage output specifications:
All standard and custom ranges can be selected as Direct or Inverted action.
V-function can be selected for fixed output ranges starting at zero.
Programmable ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0/0.2...1, 0/1...5, 0/2...10, ±1, ±5 and ±10 V
V-curve function, 100-0-100% . . . . . . . . . . . . . . . . . . . . . . . . . . 1-0-1 V, 5-0-5 V and 10-0-10 V
Load, min . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . > 500 kΩ
Response time, programmable . . . . . . . . . . . . . . . . . . . . . . . . . 0.0...60.0 s
Output limitation at outside range . . . . . . . . . . . . . . . . . . . . . . . See table on page 14
Observed authority requirements:
EMC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2014/30/EU
LVD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2014/35/EU
RoHS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2011/65/EU
Approvals:
c UL us, Standard for Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . UL 508 / C22.2 No. 14
Direct or Inverted action
Direct or Inverted action
-23...+23 mA (bipolar)
±28 mA (bipolar)
Direct or Inverted action
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Order