Take Out the Old...Bring In the New

PD684 Loop Leader
PD684 Loop Leader

With the recent launch of the New Loop Leader, the price of the older loop-powered panel meters is going to increase substantially and they will be discontinued when supplies are exhausted.

The affected older models are the PD683, PD684, PD688, and PD689 loop-powered panel meters. New pricing on these models is effective 7/1/18. We will currently sell these meters for as long as supply of meters and components allows. However, we strongly recommend all our customers plan on moving to the new models immediately. The New Loop Leader PD6600 series is a lower cost, superior display, with many new features. The dual-line LCD, multiple display options, red backlight, solid-state relays, and two open collectors are just a few of the many features making it a no brainer when it comes to replacing your old loop-powered meter. See the comparisons of the old and new Loop Leader below.

The new and old Loop-Leaders both fit in the same 1/8 DIN panel cutout and extend 3.2" behind the panel. They do have different wiring connections as the diagrams illustrate above.

LOOP LEADER FEATURES COMPARISON CHART
FeatureOld Loop LeaderNew Loop Leader
Panel Cutout1/8 DIN1/8 DIN
Case DepthShallow Depth (3.2", 81mm)Shallow Depth (3.2", 81mm)
DisplaySingle-LineDual-Line
Feet & Inches DisplayNot AvailableAvailable
Number of DigitsFiveFive & Eight
Number of Digits for TotalFiveEight (13 using top line)
Digit Height0.60"0.70"
Engineering Units/Tags3 Alphanumeric Characters8 Alphanumeric Characters
Pre-defined Engineering UnitsNot AvailableStandard Feature
BargraphHorizontal,
20-segment
Vertical, 20-segment,
with numeric percentage display
BacklightYesYes, with Red on Alarm Option
Programming MethodFront Panel ButtonsFront Panel Buttons and
USB Programming Software
Voltage Drop2.0 V (5.7 V with Backlight)1.5 V (4.7 V with Backlight)
Operating Temp Range-30°C to 65°C-40°C to 75°C
(Up to 70°C for Hazardous Areas)
NEMA 4X GasketLooseSeated in Place
Accuracy0.03%0.02%
Temperature Drift50 PPM25 PPM
Linear, Square Root,
and Programmable Exponent
YesYes
Round Horizontal TankNoYes
ApprovalsATEX IS and FM, CSA IS/NIATEX & IECEx IS, UL & C-UL IS/NI
ButtonsEmbossed FaceplateSilicone Rubber
Open Collector OutputOneTwo
Loop-Powered RelaysNoneTwo Solid-State
Isolated 4-20 mA OutputNoneOne
Digital InputsNoneOne
Warranty3 Years3 Years
Pump Control FeaturesNot AvailableStandard Feature
NEMA 4X/IP65 FrontStandard FeatureStandard Feature
Function KeysNot AvailableStandard Feature
Conformally Coated PCBsNot AvailableStandard Feature
FunctionalityProcess display, flow rate totalizationProcess display, alarming, alarm trip,
signal retransmission, loop-powered isolator,
lead-lag pump alternation,
dual-scale display, flow rate totalization,
batch control, etc.
LOOP LEADER PRICE COMPARISON CHART
Old Loop LeaderNew Loop Leader
ModelPriceModelPrice
PD683 Process Meter$488.00PD6602 Process Meter
PD6603 Process Meter
PD6604 Process Meter
$194.00
$229.00
$229.00
PD688 Process Meter (I.S. & N.I)(1)$738.00PD6606 Process Meter (I.S. & N.I)(2)
PD6607 Process Meter (I.S. & N.I)(2)
PD6608 Process Meter (I.S. & N.I)(2)
$319.00
$354.00
$354.00
PD684 Rate/Totalizer$638.00PD6622 Rate/Totalizer
PD6624 Rate/Totalizer
$269.00
$304.00
PD689 Rate/Totalizer (I.S. & N.I)(1)$908.00PD6626 Rate/Totalizer (I.S. & N.I)(2)
PD6628 Rate/Totalizer (I.S. & N.I)(2)
$394.00
$429.00
(1) These models are ATEX IS and FM, CSA IS/NI
(2) These models are ATEX & IECEx IS, UL & C-UL IS/NI