DM 540X

	Never Needs Calibrating
	Max/Min Logging
	NEMA 4 / IP65 Enclosure
	4" (100mm) Gauge Housing
	RTD Sensors
	IS Version to EEx ia IIC T4
	2 Year Warranty

BATTERY POWERED THERMOMETER
DM540X Series

DESCRIPTION
The DM540X is a battery powered digital indicator which accepts a Pt100 RTD input. The 4" (100 mm) "Dial Gauge" enclosure is NEMA 4/IP65 rated and houses a 0.8" (20 mm) high display for excellent readability. The orientation of the display can be adjusted as needed for each installation. The measuring circuit compares the RTD to a highly stable resistor. This ratiometric measurement assures high accuracy and stability and a device that never requires calibration for most applications.

The DM540X provides a continuous display which is updated at user selectable 1, 6, or 12 second intervals. The unit also stores the maximum and minimum readings which are user resetable.

As an option, a customized RTD assembly can be supplied with the unit.

SPECIFICATIONS @ 68 °F

.Input	.Pt100 2 or 3 wire to EN 60751, BS 1904, .DIN 43760 (0.00385)
.Display	.LCD, 4 Digit 0.8" (20 mm) high
.Update	.6 secs. standard, 1 sec. or 12 secs. user selectable
.Battery	.4 x AA Alkaline Manganese
.Battery Life	.1.5 years (@ 6 secs. update) Standard .32 weeks (@ 1 sec. update) Selectable .2.25 years (@ 12 secs. update) Selectable .Low battery indicator
.Range	.-50 to +399.9°C - 0.1°C resolution .or -58 to 600°F - 1°F resolution
.Accuracy	.±0.1°C ±0.15% rdg (±1°F) plus sensor error
.Drift	.Temperature <0.002°F .Time ±0.02°F
.GENERAL
.Ambient	.0 to 104°F DM540X
.Case Size	.3.94" (100 mm) diameter body .4.43" diameter bezel
.Connection	.1/2" NPT
.APPROVALS
.EMC	.Emissions	.EN 50081
	.Susceptibility	.EN 50082

HAZARDOUS AREAS
The DM540X is approved to EEx iaIIC T4.
Certificate No. Ex 94C 2449 EECS (BASEEFA).
Component Certificate No. Ex 94C 2448U EECS.
System Certificate No. Ex 94C 2450 EECS.

DOWNLOADS
DM540X Instruction Manual

DM540X Literature

ORDER CODE

DM540X - CASE STYLE

.DM540X Basic Model Number
.Case Style	.A - Standard Side Entry .B - Standard Wall Mount Side Entry .C - Optional Rear Entry .D - Optional Panel Mount Rear Entry
Assembly -	.RTD assemblies can be supplied to order. .Please contact sales office.