Two-wire Loop Powered LED Indicator
with Intrinsically safe approval

Model 6DV is a 4-digit, 8-mm-high (.3”), 7-segment red LED display, which is powered from a two-wire current loop (4 to 20 mA), requiring no extra power source. The maximum voltage drop caused by inserting the 6DV into the loop is 4.0 V at 20 mA.

    External view and dimensions of 6DV, 6DVI
    Figure 1. External view and dimensions of 6DV, 6DVI
    The display range is programmable from -1999 to 9999 and the decimal point is also selectable (10–1, 10–2, 10–3 or without decimals).
  • Programmable functions include input signal calibration, offset setting and linearization (SQRT, RT32 and RT52, and 21-point user’s table).
  • In combination with Model 27HU, it provides the user with a low-cost, field-mounted HART Temperature Transmitter with LED Display.
  • Compact housing: External dimensions of 70mm-dia. (2.76”) and 21mm-high (0.83”)(See below Figure 1).

Using the A-34 DIN Rail Adaptor or the A-6 Spacer, various mounting styles are available.

Table 1
Operating temperature
Intrinsically safe
T4 -40 to +80°C -40 to +85°C
T5 -40 to +60°C -40 to +60°C
Intrinsic safety Ex data
  6DV 6DVI
Ui (Vmax) 30V DC 28V DC
Ii (Imax) 100mA DC 120mA DC*1
Pi (Pmax) 0.75W 0.84W
Ci 1.0 nF 1.0 nF
Li 0 mH 0 mH
*1. Max. current allowed for the safety approval; Not to guarantee the product’s performance.


Table 2
Safety approval
FM: Intrinsically safe
(US, Canada)
Class I, Div. 1, Groups A, B, C and D
Class I, Zone 0, AEx ia IIC (US)
Class I, Zone 0, Ex ia IIC (Canada)
T4 and T5
(Class 3610)
(CAN/CSA-C22.2 No. 157-92)
CENELEC: Intrinsically safe
II 1G, Ex ia IIC; T4 and T5
(EN 50020 : 2002)

Intrinsically safe approvals are available from ATEX Directive (Europe) and FM (US, Canada). Differences between the 6DV and the 6DVI exist only in safety parameters (See Table 1).

A safety barrier with matching safety parameters to the 6DV or 6DVI must be installed for complete intrinsic safety. The safety barrier should meet the Ex-data of this unit and must be approved for hazardous location.

Model 6DV and 6DVI are approved to applicable standard of IEC60079 category: ia, and can be installed into hazardous areas Zone 0 (Europe) and Division 1 (US, Canada). They are covered for use in a potentially explosive atmosphere of the gas group (explosion group) including Hydrogen and Acetylene (See Table 2).

The 6DV and 6DVI Series also include an optional outdoor enclosure, model 6DV-B and 6DVI-B, which are able to be field-mounted.


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