Meriam M334 4-20 Milliamp Loop Calibrator Instrukcja Użytkownika Pobierz pdf (Strona 8)

Source/Power & Measure Two Wire Transmitters

M334 Ranges and Resolution

0.00 to 24.00 mA Full Span or -25.0 to 125.0% of 4-20 mA

Accuracy

EZ Check(s) at 4 & 20mA

0.0 to 24.00 mA

≤ ±0.025% of Span at 4 mA & 20 mA (± 0.005mA)

≤ ± 0.05% of 24.00mA Span (± 0.01mA)

Noise ≤ ± ½ Least Significant Digit

Temperature effect ≤ ± 0.005 %/°C of FS

Loop compliance voltage

≥ 24 DCV @ 20.00mA

Loop drive capability 1200 Ω at 20 mA for 15 hours nominal; 950 Ω with Hart

Resistor enabled (334Plus)

Battery life Source and Power measure mode ≥ 30 hrs at 12 mA

nominal; ≥ 25 hrs with backlight on (334Plus)

These are internal calibrated cardinal reference points and accuracy is not defined or limited by display

resolution

2-Wire Transmitter Simulation

Accuracy Same as Source/Power & Measure

Voltage burden ≤ 2V at 20 mA

Overload/Current limit protection 24 mA nominal

Loop voltage limits 2 to 100 VDC (fuse-less protected from reverse polarity

connections)

Battery life ≥ 125 hours nominal

Voltage Read

Range and Resolution -99.99 to +99.99 VDC Full Span (FS)

Accuracy ≤ ± 0.05 % of FS

Temperature effect ≤ ± 100 ppm/°C of FS

Input resistance ≥ 2 MΩ

Battery life ≥ 125 hours nominal

Meraim M334 Specifications (continued)

(Unless otherwise indicated all specifications are rated from a nominal 23 °C,

70 % RH for 1 year from calibration)

Additional Information

This product is calibrated on equipment traceable to NIST and includes a Certificate of Calibration.

Test Data is available for an additional charge.

Meriam recommends a calibration interval of one year. Contact your local representative for

recalibration and repair services.

Meriam Process Technologies

10920 Madison Ave. • Cleveland, OH 44102 Tel: 216.281.1100 • Fax: 216.281.0228 • [email protected] • www.meriam.com

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Meriam M334 4-20 Milliamp Loop Calibrator Instrukcja Użytkownika Strona 8