Precision Digital PD686 User Manual
Specifications, Ordering information, Model pd686
Precision Digital corPoration
www.predig.com
Model Pd686 3½ digit NeMA 4X
looP-PoWeRed MeteR
1 V drop
•
1" High display
•
operates From
•
-40 to 85°C
Accessories
Model
Description
PDA6844
Panel Mount Kit
(does not provide NEMA 4X seal to panel)
PDA6845
2" Pipe Mounting Kit (zinc plated steel)
PDA6845-SS
2" Pipe Mounting Kit (stainless steel)
PD686 NEMA 4X Loop-Powered Meter
Model
Description
½" Conduit
Hole Location
PD686*
FM Approved & CSA Certified
Bottom
PD686-X
FM Approved & CSA Certified
Rear
PD686-Y
FM Approved & CSA Certified
Top
PD686-Z
FM Approved & CSA Certified
None
* Quick Shipment Product, shipped within 2 working days
SPeCiFiCAtioNS
Except where noted all specifications apply to operation at +25°C.
Input: 4-20 mA @ 30 VDC maximum
Display: 1.0" (25.4 mm) LCD, 3½ 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: V
max
= 30 V, I
max
= 175 mA,
C
i
= 0 µF, L
i
= 0 µH, P
i
= 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 85°C
for Canadian installations -40 to 40°C.
Storage Temperature: -40 to 85°C
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 ½” 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
Your Local Distributor is:
oRdeRiNg iNFoRMAtioN
Actual Size Digits
Model Pd686