Meriam Process Technologies

M334 Milliamp Loop Calibrator

Highly reliable, rugged and easy to use 4 - 20 mA calibrator

$975.00 CAD
Normally ships in 1-2 Weeks

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The Meriam M334 is a state of the art, highly reliable, rugged and easy to use milliamp calibrator. It has the functions necessary to perform all the required maintenance and calibration tasks of virtually any 4 - 20 mA loop. It provides source and read milliamp functions along with power and measure and two wire transmitter simulations. In addition it can measure DC Voltage for troubleshooting power supplies.

The M334 is functionally equivalent to similar calibrators with many additional benefits. These improvements include better long term stability, accuracy, reliability and ruggedness including significantly improved battery life. The combined improvements allow the Meriam M334 to meet or exceed all of the expected performance and functions of similar products.


• Source 0.00 - 24.00 mA (-25.0% - 125.0%) and read 0.00 - 52.00 mA (-25.0% - 300.0%)
• Simulate, power, and measure 2-wire transmitters
• Accuracy to better than 0.025% (within ± 0.005 mA from 4.00 and 20.00 mA EZ-Checks)
• Large high contrast graphic display is viewable in all lighting conditions and angles
• EZ-Dial knob lets you easily adjust output by 0.01 mA (0.01%)
• EZ-Check 3-position slide switch
• Fuse-less protection from accidental misconnection
• Rechargeable battery features two charging options
• Compact, lightweight and rugged
• Includes a heavy protective rubber boot
• Rechargeable battery features two charging options

Ranges and Resolution 0.00 - 24.00 mA Full Span, or -25.0 - 125.0% of 4 - 20 mA
Accuracy -20 to 60C (-5 to 140F)
Operating Temperature -30 to 60C (-22 to 140F)
Storage Temperature 10% ≤RH ≤90% (0 to 35C), Non-condensing
10% ≤RH ≤70% (35 to 60C), Non-condensing
Relative Humidity Range 12.1 ounces (including boot & batteries)
Battery Type Four (4) AA alkaline 1.5 V (Duracell MN1500 or equivalent)
Battery Life ≥ 125 hrs nominal
Size 5.63 in L x 3.00 in W x 1.60 in H
Weight 12.1 oz (including boot and batteries)
Other Features Low battery indication, over-voltage protection, high contrast graphic liquid crystal display
Approvals / Certifications CE
120 V, 60 Hz AC adapter for M334
Normally ships in 1-2 Weeks
$78.00 CAD
230 V, 50 Hz AC adapter for M334
Normally ships in 1-2 Weeks
$78.00 CAD
Ni-Mh 1 hour charger with four (4) Ni-Mh AA batteries
Normally ships in 1-2 Weeks
$98.00 CAD