Precision Digital

PD686 Loop-Powered NEMA 4X IS & Nonincendive Meter

Intrinsically Safe and Nonincendive, NEMA 4X, easy to install and program, can be seen from considerable distance

Starting At
$503.00 CAD
Normally ships in 1-2 Weeks

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The PD686 is an Intrinsically Safe and Nonincendive, NEMA 4X, loop-powered indicator that is easy to install and program and can be seen from considerable distance. The fact that this meter is loop-powered means that there is no need to run additional, costly power lines into a hazardous area; the meter gets all of the power it needs from the 4-20 mA loop and the PD685's 1 V drop results in a minimal burden on the loop. The meter features FM and CSA approvals as Intrinsically Safe and Nonincendive, a wide -40 to 85°C operating temperature range, and is provided with a ½" conduit hole in a location of your choice for easy installation. Calibration is a quick two-step process involving the adjustment of only two non-interacting potentiometers.



• 4-20 mA Input
• 1 V Drop
• 3½ Digit LCD 1" (25.4 mm) High
• Operating Temperature Range: -40 to 85°C
• ½ Conduit Hole Provided
• Intrinsically Safe with Entity Class I, II, III; Div. 1; Gp A, B, C, D, E, F, G
• Non-incendive: Class I, II, III; Div2; Gp A, B, C, D, F, G

Input 4-20 mA @ 30 VDC maximum
Display 1.0" (25.4 mm) LCD, 3 digits; 1999
Accuracy 0.1% FS 1 count
Approvals FM Approved & CSA Certified as intrinsically safe with entity, for use in Class I, II, III, Division 1, Groups A, B, C, D, E, F, & G; T-code = T4; hazardous locations. Non-incendive for use in Class I, II, III, Division 2, Groups A, B, C, D, F, & G.
Entity Parameters Vmax= 30 V, Imax = 175 mA, Ci= 0 F, Li = 0 H, Pi = 1.3 W
FM Approved Intrinsically Safe, Class I Zone 0
See Control Drawing LIM686-2 for complete installation instructions.
Decimal Point User selectable
Calibration Two-step; non-interacting zero and span
Calibration Range 4 mA input: -1000 to +1000;
20 mA input: between 20 and 2000 counts > 4 mA display
Display Update Rate 2.5/second
Maximum Input Current 30 mA
Maximum Voltage Drop 1 V @ 20 mA
Operating Temperature PD686: -40 to 85C
for Canadian installations -40 to 40C.
Storage Temperature -40 to 85C
Relative Humidity 0 to 90% non-condensing
Enclosure Impact-resistant glass filled polycarbonate body, color: gray; impact-resistant clear polycarbonate cover; NEMA 4X, IP67
Connections Removable screw terminals accept 12 to 26 AWG
Conduit Hole One " conduit hole provided; refer to Ordering Information to specify conduit hole location; request models with rear conduit hole (-X) for panel mounting applications.
Weight 12 oz (340 g)
Warranty 2 years parts & labor
PDA6844 Panel Mounting Kit
Panel mounting kit
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$76.50 CAD
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Pipe mounting kit with 2 holes
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Starting At
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