PRECISION DIGITAL Loop Leader PD6620 Series, Инструкция по эксплуатации

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Loop Leader PD6620 Series Loop-Powered Rate/Totalizer Instruction Manual
6
Specifications
Except where noted all specifications apply to operation at +25°C.
Input
Input 4-20 mA
Accuracy ±0.02% of span ±1 count, Square root and
programmable exponent: 10-100% FS
Voltage Drop Without Backlight : 1.5 V maximum,
With backlight : 4.7 V maximum
Equivalent
Resistance
With backlight off
: 75 Ω @ 20 mA
With backlight on : 225 Ω @ 20 mA
Input Overload Over current protection to 1 A maximum
Over voltage protection to 30 VDC max
(between mA+ and mA-/BL-)
Temperature Drift 25 PPM/°C from -40 to 75°C ambient
Function Linear, square root, or programmable
exponent
Low-Flow Cutoff
0.0 to 999,999.9
HART
Transparency
Analog input will not interfere with existing
HART communications on the wired 4-20 mA
signal
Display
Display Dual-line LCD with backlight. Both lines 14-
segment alphanumeric. Top: 0.7" (17.8 mm),
Bottom: 0.4" (10.2 mm). Display may be pro-
grammed to turn red and flash a user-defined
message on alarm condition.
Backlight Powered by 4-20 mA loop. Intensity varies with
signal level
Top Line 5 digits (-9999 to 99999) or 5 characters (all
capital & most lower-case letters)
Bottom Line
8 digits (-9,999,999 to 99,999,999; separated
by commas) or 8 characters (all capital & most
lower-case letters)
Bargraph 20 segments, numeric percent indication at top
(PD6624 & PD6628 only)
Decimal Point Up to four decimal places on top line and
up to seven decimal places on bottom line
Commas Commas to indicate 1000s (e.g. 88,987,628)
on bottom line
Dual-Scale
Feature
The input can be displayed in different scales
on the top and bottom lines. For instance, the
top line could display the flow in GPM and the
bottom line could display that same input in
CFM.
Alarm Indication Red backlight, flashing display, alarm symbol
(!); Symbols are not available on bargraph
models. Bargraph segment flashes on alarm.
Alarm Message
On or Off; user programmable, 8 characters
maximum. Displayed every 10 seconds for 1
second on bottom line.
Display Update
Rate
Ambient > -10°C: 1 Update/Second
Ambient = -20°C: 1 Update/2 Seconds
From -20°C to -40°C the update rate slows
down 1 second for every -2°C (e.g. at -24°C, 1
update/4 seconds).
Overrange
Top: 99999; Bottom: 99,999,999 (flashing)
Underrange Top: -9999; Bottom: -9,999,999 (flashing)
General
Environmental
Operating temperature range:
-40 to 75°C for safe area products
-40 to 70°C for hazardous area products
Storage temperature range: -40 to 85°C
Relative humidity:
0 to 90% non-condensing
Printed circuit boards are conformally coated.
Programming
Method
Front panel & Free PC-based USB
programming software
Enclosure &
Materials
Enclosure: 1/8 DIN, IP65, NEMA 4X front
panel, high impact plastic, NORYL® polyphe-
nylene ether & polystyrene blend (PPE PS)
resin, UL 94V-0, Color: gray
Gasket: Silicone Rubber
Faceplate: LEXAN® polycarbonate (PC) Film
Buttons: Silicone rubber
Noise Filter Averages the input signal over a period of time
between 1 and 16 seconds to dampen the ef-
fects of a noisy signal that causes a jumpy dis-
play.
Filter Bypass 0.0 to 99.9% of full scale. Input signal changes
greater than bypass value are displayed imme-
diately.
Recalibration Recalibration is recommended at least every
12 months.
Max/Min
Display
Max/min readings reached by the process are
stored until reset by the user or until power to
the meter is turned off.
Password There are three password types available:
Main, Total, and Grand Total. The Main pass-
word prevents access to the meter Program-
ming Mode. Total and Grand Total passwords
prevent resetting the total and grand total, re-
spectively.
Non-Volatile
Memory
All programmed settings and total and grand
total values are stored in non-volatile memory
for a minimum of ten years if power is lost.
Normal Mode
Rejection
64 dB at 50/60 Hz
Connections Removable screw terminals accept 12 to 22
AWG wire
DI Digital Input
Contacts
2.1 VDC on contact. Connect normally open
contacts across DI+ to DI-
DI Digital Input
Logic Levels
Logic High: 2.4 to 30 VDC (max)
Logic Low: 0 to 0.9 VDC
Tightening Torque
Screw terminal connectors:
4.5 lb-in (0.5 Nm)
Mounting screws:
8.0 lb-in max. (0.9 Nm)
Overall
Dimensions
4.68" x 2.45" x 3.79"
(119 mm x 62 mm x 96 mm) (W x H x D)
Weight 8.7 oz (247g) with option board
Warranty
3 years parts and labor