GeneralExcept where noted all specifications apply to operation at +25°C.Input:
4-20 mA @ 30 VDC maximumDisplay:
28 mm (1.1") LCD, 3½ digits; -1999 to +1999Backlight:
Powered by 4-20 mA loop. Intensity varies with signal levelAccuracy:
±0.1% FS ±1 countEntity Parameters:
Ui = 30 V, Ii = 175 mA, Pi = 1 W, Ci = 0, Li = 0Decimal Point:
User selectable via J2 jumperCalibration:
Four-step coarse and fine control; non-interacting zero and spanCalibration Range:
4 mA input: -1000 to +1000; 20 mA input: between 20 and 2000 counts > 4 mA displayDisplay Update Rate:
2.5/secondMaximum Input Current:
30 mAInput Overload Protection:
Over voltage protection to 30 V max (between S+ and S-)Maximum Voltage Drop:
1 V @ 20 mA (4 V @ 20 mA with backlight)Operating Temperature:
-40°C to +75°CStorage Temperature:
-40°C to +85°CRelative Humidity:
0 to 90% non-condensing. Printed circuit boards are conformally coated.Enclosure:
Impact-resistant, glass-filled, polycarbonate body, opaque; Impact-resistant, polycarbonate cover, transparent; Polyurethane/polymer gasket; Polyamide/plastic cover screws; NEMA 4X, IP67Connections:
Removable screw terminal block, 12 to 24 AWG.Conduit Hole:
One 22 mm (0.865") conduit hole may be provided; refer to Ordering Information to specify conduit size and hole location; request model (-Z) for no conduit hole.Weight:
340 g (12 oz)Warranty:
2 years parts & labor
Compliance InformationProduct Markings:
Special Conditions for Safe Use:
| II 1 GD|
|Ex ia IIC T4 Ga|
|Ex ia IIIC T135°C Da|
|-40°C ≤ Ta ≤ +75°C; IP67|
Year of Construction:
- The permitted ambient temperature range for the PD685 is -40°C to +75°C (-40°F to 167°F).
- Use suitably certified and dimensioned cable entry device and/or plug. The equipment shall be installed such that the supply cable is protected from mechanical damage. The cable shall not be subjected to tension or torque.
- Under certain extreme circumstances, the non-metallic parts incorporated in the enclosure of this equipment may generate an ignition-capable level of electrostatic charge. Therefore, the equipment shall not be installed in a location where the external conditions are conducive to the build-up of electrostatic charge on such surfaces. This is particularly important if the equipment is installed in a zone 0 location. In addition, the equipment shall only be cleaned with a damp cloth.
- The cable entry into the enclosure shall be by means of conduit or cable gland and shall provide a minimum degree of protection of IP5X.
This information is contained within the
serial number with the first four digits representing the year and
month in the YYMM format.For European Community:
The PD685 must be installed in
accordance with the Essential Health & Safety Requirements of
Directive 2014/34/EU, the product certificates CML 17ATEX2113X
and IECEx CML 17.0052X, and the product manual.
All controls and wiring connectors are accessed by opening the
enclosure. To access electrical connectors, remove the enclosure
cover, unscrew the two captive screws that fasten the printed circuit
board, and remove the printed circuit board from the enclosure.