IM 61A01A01-01E-A
Model
Suffix Codes
Description
MLD
Field Mounted Loop Indicator (Digital)
Input Signal
-A
4 to 20 mA DC
Mounting
1
2
2” Horizontal Pipe
2” Vertical Pipe (or wall mount)
Housing
/1
/2
Cast Aluminum Alloy - (Standard Housing)
SUS316 Cast Stainless Steel and ASTM CF-8M
Electrical
Connection
/00
/20
/30
/40
ANSI ½ NPT female, without blind plug
ANSI ½ NPT female, 316 Stainless Steel blind plug
ISO M20 female, without blind plug
ISO M20 female, 316 Stainless Steel blind plug
Ex Protection
/FF1
/CF1
FM Explosion Proof
CSA Explosion Proof
Optional Specifications
Coating
/X1
/X2
Epoxy resin coating
Polyurethane-Epoxy Anti-corrosion coating
Paint
/P1
/P2
/P3
/P4
/P5
/P6
/P7
Light Blue (RAL # 5012)
Orange (RAL # 2008)
Red (
Munsell # 7.5 R4/14
)
Mint Green
Silver (RAL # 9006)
Yellow (RAL # 1018)
Gray (RAL # 7046)
Calibration
/ENG
Engineering Unit Calibration (MLD Only)
Stainless Steel Tag
/SST
/SSW
Stainless Steel tag screw attached to housing
Stainless Steel tag wired to housing
Stainless Steel Tag
/SSW
Stainless Steel tag wired to housing
1. PREFACE
The Model MLD field mounted indicator receives a DC current signal from electronic transmitters and
indicates process measurement values. This instruction manual gives instructions on handling, mounting,
and wiring of the MLD indicator.
2. MODEL CODE AND SPECIFICATIONS
STANDARD SPECIFICATIONS
Voltage Drop:
1.8V typ., 2V max.
Scale:
0- 1999 w / d ec i m al
Accuracy:
± 0.05% of full scale (1999) ±1 count
Operating Temperature Range:
-20 to 60°C
Temperature drift:
±0.3 Count/°C
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” (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 or 316
Stainless Steel, baked polyurethane paint. Moss
Green (Stainless Steel is unpainted); NEMA 4X
Electrical Connection:
½ x 14 NPT or
M20 x 1.5
Weight:
2.7 lbs
ORDERING INSTRUCTIONS
1.
Model and Suffix codes.
2.
Option Codes
Example Ordering Instructions:
MLD-A1/1/00/FF1/ENG/SST Field Mounted Indicator (Digital), 4 to 20 mA DC, 2” Horizontal Pipe, FM Explosion Proof
0-200 InH2O
Scale in Engineering Units. Please specify Scale and Engineering units when ordering /ENG
FT-201
Specify Tag Number when ordering /SST or /SSW
