Meriam M334 4-20 Milliamp Loop Calibrator - Manual (Page 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 1
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)
1 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