AOIP CALYS 150, Инструкция по эксплуатации, Страница: 185 / 194

Measurement Function (Channel 1 and Channel 2)
D
NTA47224-300A9 185 / 194
D. TECHNICAL SPECIFICATIONS
The accuracies quoted apply at + 18°C to + 28°C unless otherwise stated, and are expressed as ± (n % R + C) where R =
The reading and C = a Constant expressed in practical units. The specifications are given for a confidence level of 95%.
They apply to a product placed under reference conditions of measurement defined hereafter:
- Power up unit and warm up for 30 minutes.
- Using instrument not connected to mains (230 V or 110 V).
- Wait for thirty minutes after disconnecting AC/DC power adaptor.
- For weak signals (100 mV / 1 V cal voltage measurement and simulation and Ohm measurement and simulation) using
connections with Y-shaped lugs or bare wires.
- Acquisition in filtered mode (averaged)
The accuracy includes the accuracy of the reference standards, non-linearity, hysteresis, repeatability and long term stability
over the period quoted.
D.1 Measurement Function (Channel 1 and Channel 2)
DC Voltage
Range Measuring range Resolution Accuracy / 1 year Notes
+100 mV - 10 mV to + 100 mV 1 µV 0.005% R + 2 µV Rin > 1 G Ω
+1 V - 100 mV to + 1 V 10 µV 0.005% R + 8 µV Rin > 1 G Ω
+10 V - 1 V to + 10 V 100 µV 0.007% R + 80 µV Rin = 10 M Ω (1)
+50 V - 5 V to + 50 V 1 mV 0.007% R + 0.5 mV Rin = 10 M Ω (1)
(1) WEM41012-00B 10 M
Ω
; WEM41012-00A 1 M
Ω
;
Temperature coefficient < (5 ppm L + 0.5 ppm Cal)/°C from 0°C to +18°C and from +28°C to +50°C.
Use the absolute value of the value measured (|L|) to calculate the accuracy.
DC Current
Range Measuring range Resolution Accuracy / 1 year Notes
0-20 mA 0 mA to 24 mA 0.1 µA 0.007% R + 0.8 µA Rin < 30 Ω
4-20 mA 3 mA to 24 mA 0.1 µA 0.007% R + 0.8 µA Rin < 30 Ω
100 mA 0 mA to 100 mA 0.1 µA 0.009% R + 2 µA Rin < 30 Ω
Temperature coefficient < (6 ppm L + 0.5 ppm Cal)/°C from 0°C to +18°C and from +28°C to +50°C.
Loop power supply = 24 V typical (30 V max)
HART compatibility: input impedance Rin = 280
Ω
Linear or square law display scale.
These specifications are provided for the following configurations:-
- CALYS 150 active mode (+24 V ON)
 Measurer passive mode (+24 V OFF).
- CALYS 150 passive mode (+24 V OFF)

Measurer active mode (+24 V ON)
Use the absolute value of the value measured (|L|) to calculate the accuracy.
Resistance
Range Measuring range Resolution Accuracy / 1 year Notes
400
Ω
0
Ω
to 400
Ω
1 m
Ω
0.006% R + 8 m
Ω
4-wire measurement
3600
Ω
0
Ω
to 3600
Ω
10 m
Ω
0.006% R + 50 m
Ω
4-wire measurement
50 K
Ω
0
Ω
to 50 K
Ω
100 m
Ω
0.008% R + 1
Ω
4-wire measurement
(1) Range on channel 1 only.
Temperature coefficient < (5 ppm L + 0.5 ppm Cal)/°C from 0°C to +18°C and from +28°C to +50°C.
Automatic detection of connection scheme: 2 wire, 3 wire or 4 wire.
For 2 wire connection, the measurement includes the resistance of the line.
For 3 wire connection, add the out-of-balance of the line resistances.
Open circuit terminal voltage: < 10 V.
Continuity test:
Open circuit for R > 1000 Ω