Status Instruments DM500 loop powered indicator


DM500 Loop Powered Digital Thermometer.

The DM500 is a loop powered process indicator, designed to be connected in series in a 4 to 20mA current loop to display digitally the process variable represented by the current flowing.

It is typically used where a digital display of the process variable is required at or near the point of measurement. The circular stainless steel housing is available in a choice of depths, permitting the installation of a suitable loop-powered transmitter and is available in wall, panel and temperature probe mounted versions.

Having no exposed glass or mercury in its construction the DM500 is ideally suited to food and pharmaceutical applications.


Large 20 mm LCD Display.
Loop Powered.
Only 1 Volt from Loop.
Stainless Steel Case.
Probe, Wall or Panel Mount.
IP65 environmental protection.
Use with any 4-20mA transmitter.

Specifications @ 20°C

Input: 4 to 20mA two wire (reverse polarity protected)
Max Current: ±125mA
Min. Operating Current: 3.8mA
Max. Loop Drop @ 20mA: 1.0V
Max. Loop Ripple: 20mA.
Fuse Protection: 125mA.
Display: 20mm, 3½ digit LCD
Display Range: -200 to +1999 counts
Offset: -1000 to +1000 counts 4mA.
Span: 200 to 2000 counts (16mA change).
Decimal Point: 3 positions plus blank.
Accuracy: ±0.1% rdg, ±1 count.
Operating Temp.: 0 to 40°C.
EMC Approvals: BS EN 61326.
Weight: 0.23Kg (excluding optional transmitter).

Mechanical Drawings

DM500 drawing 1

DM500 drawing 2

Ordering Code

DM500 ordering code