ProtEX-MAX PD8-6210 Explosion-Proof Analog Input Batch Controller
Instruction Manual
18
Automatic
Overrun
Correction
Adjusts the closing of the batch control
relays to compensate for inaccuracies from
batch to batch. The overrun correction
feature is capable of compensating for
inaccuracies of up to 1% of the
programmed preset value.
To achieve an accurate batch, the flow rate
must be slowed down, such that the total
most-right digit increments at a rate of less
than 10 counts/second. The use of a
dual-stage batch control is recommended.
Count Up or
Count Down
Batch total and grand total can set to count
up or count down, independently.
Start / Stop
Batch
The F4 digital input is assigned to start &
stop the batch, it is located on the input
signal connector.
An external push-button can be connected
between terminal F4 and COM. Press the
button once to start the batch and press it
again to stop the batch.
High or Low
Flow Alarm
The user may program any alarm for high
or low trip point. The alarm detection is
active only while the batch is running.
Unused alarm LEDs and relays may be
disabled (turned off).
Grand
Totalizer
Rollover
Grand totalizer rolls over when display
exceeds 999,999,999. Relay status reflects
display.
Grand Total
Overflow
The grand total can display up to
999,999,999 using the overflow feature.
After the value exceeds 999,999 a 3-digit
value with the prefix “
oF
” toggles every 10
seconds. The overflow feature can be
disabled by setting a grand total alarm that
automatically resets the grand total when
999,999 is reached.
Grand Total
Alarms
Up to three, user selectable under setup
menu. Any set point can be assigned to
grand total and may be programmed
anywhere in the range of the controller for
grand total alarm indication. Relay 1 should
always be assigned to batch.
Programmable
Delay on
Release
0.1 and 999.9 seconds; applied to the first
relay assigned to total or grand total.
If the controller is programmed to reset total
to zero automatically when the preset is
reached, then a delay will occur before the
total is reset.
Grand Total
Reset
Via front panel button, external contact
closure on digital inputs, automatically via
user selectable preset value and time
delay, or through serial communications.
Grand Total
Reset
Password
Grand total passwords may be entered to
prevent resetting the grand total from the
front panel.
Non-
Resettable
Grand Total
The grand total can be programmed as a
non-resettable total by entering the
password “050873”.
•
Once the Grand Total has been programmed as
“non-resettable” the feature
CANNOT
be disabled.
Process Inputs
Inputs
Field selectable: 0-20, 4-20 mA
10 V (0-5, 1-5, 0-10 V)
Modbus PV (Slave)
Isolated
Transmitter
Power Supply
Terminals P+ & P-: 24 VDC
10%
All models selectable for 24, 10, or 5 VDC
supply (internal jumper J4)
All models transmitter supply
rated @ 25 mA max
Refer to
on page
Figure 19. 4-20 mA Output Connections
page
Accuracy
±0.03% of calibrated span ±1 count,
square root & programmable exponent
accuracy range: 10-100% of calibrated span
Temperature
Drift
0.005% of calibrated span/
C max from
0 to 65
C ambient, 0.01% of calibrated
span/
C max from -40 to 0
C ambient
Input Signal
Conditioning
Linear, square root, or programmable
exponent
Multi-Point
Linearization
2 to 32 points
Programmable
Exponent
User selectable from 1.0001 to 2.9999 for
open channel flow
Low-Flow
Cutoff
0.1 to 999,999 (0 disables cutoff function).
Point below at which the display always
shows zero.
Decimal Point
Up to five decimal places or none:
d.ddddd
,
d.dddd
,
d.ddd
,
d.dd
,
d.d
, or
dddddd
Calibration
Range
Input Range
Minimum Span
Input 1 & Input 2
4-20 mA
0.15 mA
10 V
0.10 V
An error message will appear if the input 1
and input 2 signals are too close together.
Input
Impedance
Voltage ranges: greater than 500 k
Current ranges: 50 - 100
(depending on
resettable fuse impedance)
Input Overload
Current input protected by resettable fuse,
30 VDC max. Fuse resets automatically
after fault is removed.
HART
Transparency
The controller does not interfere with
existing HART communications; it displays
the 4-20 mA primary variable and it allows
the HART communications to pass through
without interruption. The controller is not
affected if a HART communicator is
connected to the loop. The controller does
not display secondary HART variables.
