ero electronic MEMOCAL 2000 - Page 8

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B) RTD (Resistance Temperature Detector) MEASUREMENT
RTD type: - Pt 100 3 wire connection.
- Ni 100 3 wire connection.
Calibration: according to DIN 43760
Line resistance: Up to 20 W/wire with no measurable error.
Engineering unit: °C or °F keyboard programmable.
Measuring current: 100 mA.
Burn out: Detection of the sensor open circuit and one or more
wires open circuit.
Calibration: according to IPTS-68 or ITS 90 programmable
Standard range table for RTD Pt 100
Standard range table for RTD Ni 100
(*) Available only when IPTS-68 standard is selected.
C) mA AND mV MEASUREMENT
Ranges: see table below
Resolution: see table below
Reference accuracy: the accuracy is shown as a percent of the
specified span.
Range selection: Automatic or manual.
Input impedance:
10 W for mA input
> 10 MW for mV inputs
> 500 kW for V input
Square root extraction: programmable
Read-out: keyboard programmable from -20000 to 20000.
Decimal point: programmable in any position.
Standard range table
RANGES
-20 mV to 20 mV
-200 mV to 200 mV
-2 V to 2 V
-20 V to 20 V
-20 mA to 20 mA
-130 mA to 130 mA
ACCUR.
+ 0.015 %
+ 0.015 %
+ 0.015 %
+ 0.020 %
+ 0.015 %
+ 0.020 %
RESOL.
1 mV
10 mV
100 mV
1mV
1 mA
10 mA
RANGES (Ni 100)(*)
-60 °C to 350 °C
-76 °F to 662 °F
RESOL.
0,1 °C
0,1 °F
RANGES (Pt 100)
-200 °C to 850 °C
-328 °F to 512 °F
513 °F to 1562 °F
RESOL.
0,1 °C
0,1 °F
< 0,2 °F
Max. Error
0.294 °C
0.227 °F
0.548 °F
Max. Error
0.119 °C
0.217 °F
Max. Error
0.006 mV
0.060 mV
0.001 V
0.008 V
0.006 mA
0.052 mA
M20-e-1.p65 7/9/01, 2:39 PM8