Yokogawa MLD and MLA Loop Powered Process Indicator Specifications

Input Resistance: < 6.5 ohm (MLA-A 4-20mA), < 13.5 ohm (MLA-B 10-50mA), ~4K ohm (MLA-C 1-5V)

Voltage Drop: 1.8V typ., 2V max. (MLD)

Scale: Black. Analog single graduations 0-100% standard. Digital 0-100.0% w/decimal standard.

MLD Display: 3-1/2 digit 1999 count

Accuracy: ± 1.5% of full scale (MLA)
± 2.0% of full scale (MLA with /T1 Option)
± 0.05% of full scale (1999) ±1 count (MLD)

Operating Temperature Range:
-50 to 60°C (MLA with Options /CF1 and /T1)
-20 to 60°C (MLA/MLD with all other Options)

Temperature drift: ±0.3 Count/°C (MLD)

Insulation Resistance: Between input terminals and case 100 Mohm at 500 V DC

Dielectric Strength: Between input terminals and case: 1000 VAC for 1 minute

Mounting: Nominal 2 inch (50mm) pipe mount or surface.

Explosion Protection Type: FM, CSA, EXPLOSIONPROOF CL1, DIV1, GROUPS A,B,C,D, DUST-IGNITIONPROOF CLII / III, GROUPS E,F,G

Case and Cover: Die cast aluminum, baked polyurethane paint. Moss Green; NEMA 4X

Electrical Connection: 1/2 x 14 NPT or M20 x 1.5

Weight: 3.0 lbs (MLA), 2.7 lbs (MLD)

OPTIONS:
Scale Analog: Special range scale in Engineering Units (/SC)
Scale or Faceplate color: White on request (/WHT)
Scaling: Digital: Special calibration in Engineering Units (/ENG). Max. value = 1999

MLA - MLD - MLX Comparison Chart