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11. Specicaons
UNIVERSAL INPUT
Strain Gauge: 350Ω, by means of 4 or 6 wire (6 to use internal Shunt resistor)
Bridge excitaon: 10Vdc ± 7%
Bridge Sensivity: 1.4-4mV/V
Shunt Value: From 40%to 100%
Input signal Span: -25% to 125% (Approx. -10mV to +50mV)
Thermocouple
Calibraon: ±0.1% of full range, ±1LSD (±1°C for Thermocouple CJC).
BS4937, NBS125 & IEC584.
PT100 Calibraon: ±0.1% of full range, ±1LSD.
B S1904 & DIN43760 (0.00385 / /°C).
DC Calibraon: ±0.1% of full range, ±1LSD.
Sampling Rate: 10 per second, 16 bit resoluon approximately
(100ms sample me)
Impedance: >10M resisve, except dc mA (5 ) and V (47k ).
Strain Gauge: Depending on user seng InPF can cause input to fail high scale
or low scale reading. Reading will fail on either, Sig+ or Sig- loss, or incorrect
excitaon output <0.8mA and >50mA supply.
Thermocouple/RTD: High alarms acvate for sensor break. Linear 4 to 20mA,
2 to 10V and 1 to 5V DC: Low alarms acvate for sensor break.
Note: Sensor break not detectable on 0 to 20mA, 0 to 50mV, 0 to 5V & 0 to
10v input types.
Isolated from all outputs. Universal input must not be connected
to operator accessible circuits if single relay outputs are
connected to a hazardous voltage source. Supplementary
insulaon or input grounding would then be required
Sensor Break
Detecon:
Isolaon:
Logic Input
Input Signal: If the Logic State seng in Cong Mode = CLS, Reset or Tare occurs on an
Open to Closed transion, or high (3 to 5VDC) to low (<0.8VDC) transion.
If Logic State seng in Cong Mode = OPN, Reset or Tare occurs on a Closed
to Open transion, or low (<0.8VDC) to high (3 to 5VDC)) transion.
Isolaon: No isolaon from inputs and other outputs.