Apollo IMY User Manual
THE APOLLO INTELLIGENT METER SERIES
MODEL IMY INSTRUCTION MANUAL
INTRODUCTION
The Intelligent Meter for Thermistor Inputs (IMY) is another unit in our multipurpose series of industrial control products that are field-programmable to solve
multiple applications. This series of products is built around the concept that the
end user has the capability to program different personalities and functions into
the unit in order to adapt to different indication and control requirements.
The Intelligent Thermistor Meter which you have purchased has the same high
quality workmanship and advanced technological capabilities that have made
Red Lion Controls the leader in today’s industrial market.
Red Lion Controls has a complete line of industrial indication and control
equipment, and we look forward to being of service to you now and in the future.
CAUTION: Read complete instruc-
tions prior to installation
and operation of the unit.
CAUTION: Risk of electric shock.
Table of Contents
SAFETY INFORMATION ······························································3
Safety Summary ···································································3
GENERAL DESCRIPTION ·····························································4
Theory Of Operation ·······························································4
Block Diagram ····································································5
PROGRAMMING AND OPERATING THE IMY ············································6
Programming the IMY ······························································6
Module #1 - Program Thermistor Type, Temperature Scale (F or C)
and Decimal Point Position ···········································8
Module #2 - Program Temperature Display Offset and Slope ······························8
Module #3 - Program Functions Accessible W/ Front Panel Lockout ························9
Module #4 - Program Digital Filter and Remote Input ···································11
Module #5 - Program Integrator/Totalizer ·············································13
Module #6 - Program Alarm/Setpoint ·················································14
Module #7 - Program Serial Communications ··········································16
Module #8 - Program Re-Transmitted Analog Output ···································17
Module #9 - Service Operations ·····················································18
Operating The IMY ································································19
Quick Programming ·······························································19
Factory Configuration ·····························································20
Temperature Monitoring Example ···················································22
INTEGRATOR / TOTALIZER / PEAK / VALLEY / TEMPERATURE OFFSET (Optional) ·········23
Integrator/Totalizer ································································23
Peak/Valley ······································································23
Offset And Slope Display Temperature ···············································23
Integrator/Totalizer Example ························································24
Integrator/Totalizer Set-Up ·························································24
ALARMS (Optional) ·································································26
20 mA CURRENT LOOP SERIAL COMMUNICATIONS (Optional) ··························27
General Description ·······························································27
Communication Format ····························································27
Sending Commands to the IMY ·····················································28
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Command String Examples ·························································28
Receiving Data from the IMY ·······················································30
Current Loop Installation ···························································30
Serial Terminal Descriptions ························································30
Serial Communications Examples ···················································31
RE-TRANSMITTED ANALOG OUTPUT (Optional) ·······································33
Analog Output Calibration ··························································34
APPENDIX “A” - INSTALLATION & CONNECTIONS ·····································35
Installation Environment ···························································35
Panel Installation ······························································35
Select AC Power (115/230 VAC) ····················································35
EMC Installation Guidelines ························································36
Wiring Connections ·······························································37
Power Wiring ·································································37
Signal Wiring (Thermistor) ·······················································37
User Input Wiring ······························································37
Output Wiring ·································································37
APPENDIX “B” - SPECIFICATIONS AND DIMENSIONS ···································38
APPENDIX “C” - TROUBLESHOOTING GUIDE ··········································41
APPENDIX “D” - PROGRAMMABLE FUNCTIONS ·······································42
APPENDIX “E” - ORDERING INFORMATION ············································44
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SAFETY INFORMATION
SAFETY SUMMARY
All safety related regulations, local codes and instructions that appear in
the manual or onequipment must be observed to ensure personalsafetyand to
prevent damage to either the instrument or equipment connected to it. If
equipment is used in a manner not specified by the manufacturer, the
protection provided by the equipment may be impaired.
Do not use this unit todirectly command motors, valves, or other actuators
not equipped withsafeguards. To do so, can bepotentially harmful to persons
or equipment in the event of a fault to the unit.
DEFINITION OF TERMS
INSTALLATION CATEGORY (overvoltage category) I:
Signal level, special equipmentor parts of equipment, telecommunication,
electronic, etc. with smaller transient overvoltages than Installation
Category (overvoltage category) II.
INSTALLATION CATEGORY (overvoltage category) II:
Local level, appliances, portable equipment, etc. with smaller transient
overvoltages than Installation Category (overvoltage category) III.
-3-
GENERAL DESCRIPTION
The Apollo Intelligent Thermistor Meter (IMY) accepts standard Thermistor
inputs and precisely linearizes them into temperature readings. Like an RTD, a
thermistor is a temperature sensitiveresistor, but thethermistor provides amuch
larger resistance change per degree. Since thermistors provide a large resistance
change, significant errors from long lead lengths or switches are eliminated.
Other advantages of using a thermistor are accuracy, repeatability, long term
stability, and sensor cost. A full 6-digit display accommodates a wide range of
temperature inputs and holds large totalization values. State-of-the-art digital
circuitry virtually eliminates errors due to drift. A full complement of option
packages is available to fulfill many process applications.
The IMY supports two popular thermistor series - the 400 Series 2,252
Ohm thermistor, and the 700 Series Thermolinearä thermistor. Selection
between the two types is done in Programming Module #1.
The indicator features areadoutchoice of either Fahrenheit or Celsiuswith
0.1 or 1 degree of resolution. English Style display prompts aid the operator
through set-up and operation. A front panel lock-out menu protects set-up
data and operation modes from unauthorized personnel. Programmable
digital filtering enhances the stability of the reading. Programmable remote
input “E1-CON” pin can be utilized to control a variety of functions, such as
totalizing, alarm control, peak/valley reading, display hold or offset
operations. All set-up data isstoredin the E
minimum of 10 years without power.
An optional integrator/totalizer can be used to totalize or integrate
temperatures up to a maximum display value of 999,999. It features
independent scaling and a low temperature cut-out to suit a wide variety of
temperature integration applications. A programmable remote input,
“E2-CON”, is included with the option andcan be utilized to control a variety
of functions, such as totalizing, alarm control, peak/valley readings, display
hold or offset operations, simultaneously with the “E1-CON”. Peak/valley
(max/min) reading memory functions are included with this option and they
are easily recalled and controlled by either the front panel or a remote input.
All readings are retained at power-down.
Optional dual relayswithparallel solid state outputs are fullyprogrammable
to operate in a wide variety of modes to suit many control or alarm applications.
Optional 20 mA loop, bi-directional serial communications provides
computer and printer interfacing to extend the capabilities of the indicator.
2
PROM, which will hold datafora
More than one unit can be connected in the loop with other RLC products
which have serial communications capabilities.
An optional 4to 20 mA or 0to 10 VDC re-transmitted analogoutput can be
scaled by the user to interface with a host of recorders, indicators and
controllers. The type of analog output is determined by the model ordered.
(See Ordering Information for available models.)
The indicator has several built-in diagnostic functions to alert operators of
most malfunctions. Extensive testing of noise interference mechanisms and
full burn-in makethe indicator extremely reliable in industrialenvironments.
The die-cast front bezel meets NEMA 4/IP65 requirements for washdown
applications. Plug-in style terminal blocks simplify installation wiring and
change-outs.
THEORY OF OPERATION
The IMY employs a microprocessor to perform the A/D conversion on the
input signal via a voltage-to-frequency converter. It digitally scales the
result, corrects for meter drift which may be present and then displays the
result in a6-digit display (4 digitsfor temperature, 6 digitsfor totalizer). The
inputs are filtered to enhance the stability of the display. A non-volatile
2
E
PROM provides permanent data retention for operating variables. The
display consists of drivers and 6-digit solid-state LEDs. The alarm option
employs opto-isolators to isolate the open collector devices from meter
common. Operating in parallel, the relays are type Form-C and are rated at
5-amps. The serial communication option features a built-in 20 mA current
source and completeopto-isolation. The analog optionfeatures a 12-bit DAC
and providesa4to20mAor0to10VDCoutput that is digitally scaled. The
analog output is isolated from meter common.
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BLOCK DIAGRAM
*Reference Installation and Connections section for power connection.
Note: Analog “-” and Alarm common are separate and isolated from the signal common. The commons should NOT be tied together.
-5-
PROGRAMMING AND OPERATING THE IMY
PROGRAMMING THE IMY
Although the unit has been programmed at the factory, the set-ups will
generally have to be changed to suit the application. Basic set-up is complete
after selection of the temperature units, decimal point placement, and
selection of the digital filtering level.
Before actually tryingto program the indicator, itis advised to organize all
the data for the programming steps to avoid any possible confusion and to
read the programming procedure entirely before proceeding.
To set-up the indicator, connect primary power and signal wires as
outlined in the connections section (Appendix “A”). Remove the jumper
wire (if installed) fromTBA#3 (PGM. DIS.). This will allowtheoperator to
enter and modify all of the indicator’s parameters. Press the front panel
button labeled “P”, momentarily. Briefly, the display will show “Pro”
alternately flashing with “0”. This is the indicator’s programming mode.
The programming mode is divided into sections, numbered 0-9, each of
which can be individually accessed. The front panel “UP” and “DOWN”
arrow buttons canbe used to select one of these numbers and the “P” button
can be used to enter the selected programming module. In all of the
programming modules, “UP”and “DOWN” are usedto either select from a
list of choices or enter a value. The “P” button is used to save the new value
and progress to the next step within a module (Note: the new value takes
effect when “P” is pressed). Upon completion of a module, the indicator
returns to the “Pro” <>“0” stage. Pressing the “P” button at this time
causes the unit to display “End” after which the unit returns to the normal
display mode. The following table explains the basic function of each step.
Note: < > This indicates that the display will alternate between the English
prompt and the actual data.
-6-
DISPLAY RESULT OF “P” BUTTON
DISPLAY
RESULT OF “P” BUTTON
“Pro” <>“0” - Causes the indicator to return to normal display mode.
Any changes to set-up data are permanently stored in the
2
E
PROM.
“Pro” <>“1” - Entry into this module allows the user to select the
Thermistor type, whether the display will read in degrees
Fahrenheit (F) or Celsius (C), and display decimal point
position.
“Pro” <>“2” - Entry into this module allows the user to select
non-standard display slope and display offset values.
This enables the meter to be “scaled” to a calibrated
temperature probe. (This scaling is NOT required for
most applications.)
“Pro” <>“3” - Module #3 allows the user to program what can be
accessed from the front panel when the PGM. DIS.
(Program Disable, TBA #3) pin is connected to common.
This feature protects critical set-up data from accidental
modification while allowing access to setpoints and other
functions. The front panel lock-out menu (quick
programming) includes setpoint modification,
integrator/totalizer resetting, and peak/valley resetting.
Note: Theterm “Quick Programming”is used to refer to the
ability to change the information that can be accessed from
the frontpanelwhen the “PGM. DIS.”terminalis connected
to “COMM.”.
“Pro” <> “4” - Module #4 programs the digital filtering level and the
function of the remote input “E1-CON” pin (TBA #4),and
if the totalizer option is installed, the remote input
“E2-CON” pin (TBA #8). The functions of the remote E1
and E2 pins are the same and include display hold,
peak/valley modes, totalizer reset, alarm reset, temperature
offset, reading synchronization or print request.
“Pro” <>“5” - This module sets the time base, scale factor and low
temperature disable function for the optional integrator/
totalizer.
“Pro” <>“6” - This module allows programming for the basic
configuration of the alarm option. The programming
includes HI/LO acting, tracking, alarm display, latched
or auto-reset, assignment to either the input or the
integrator/totalizer, and alarm and hysteresis values.
“Pro” <>“7” - Module #7 is the serial communication parameter
programming. Baud rate, unit address, print request
function and condensed prints are all programmable.
“Pro” <>“8” - This module allows digital scaling of the retransmitted
analog output. Display values that correspond to 4mA or
0 VDC and 20 mA or 10 VDC are keyed-in to scale the
output and it may be assigned to either the input or the
integrator / totalizer.
“Pro” <>“9” - This module is the service operation sequence and is not
normally accessed by the user. This step re-calibrates the
basic input and is used to compensate for long-term drift.
Execution of this module should be done by technicians
with the proper equipment in accordance with a
maintenance plan of yearly recalibrations. A code number
entry step isused to protect frominadvertent entries. Also,
there is a number of other access codes which provide test
and set-up changes as an aid in troubleshooting.
-7-
MODULE #1 - PROGRAM THERMISTOR TYPE, TEMPERATURE SCALE (F OR C)
AND DECIMAL POINT POSITION
Select the desired Thermistor type by pressing the “UP” or “DOWN”
button.
“tYPE” < > “400” 400 = 400 Series, 2,252 ohm
Select the desired temperature scale by pressing the “UP” or “DOWN”
button.
Select the desired decimal point location by pressing the “UP” or
“DOWN” button.
“700” 700 = Thermolinearä Series
“SCALE” < > “F”
“C”
“ dECPNt” < > “0”
“0.0”
MODULE #2 - PROGRAM TEMPERATURE DISPLAY OFFSET AND SLOPE
If the totalizer option is installed, the offset and slope can be programmed
for various temperature probe differences. See the Offset and Slope Display
Temperature section for more details.
Select the desired temperature displayslope value bypressing the “UP”or
the “DOWN” button.
“SLOPE” < > “0.0001” to “10.0000” (ex. 1.0309)
Select the desiredtemperature display offset value bypressing the “UP” or
the “DOWN” button.
“OFFSEt” < > “-999” to “9999” (ex. -17.5)
-8-
MODULE #3 - PROGRAM FUNCTIONS ACCESSIBLE W/ FRONT PANEL LOCKOUT
This programming module programs what is accessible through the front
panel when the PGM. DIS. pin is connected to common (COMM.).
Note: The term “QuickProgramming” is used to refer to the abilityto change the
information that can be accessed from the front panel when the “PGM. DIS.”
terminal is connected to “COMM.”.
DISPLAY ALARM VALUES
If the alarmoption is installed, this selectswhether the alarm values willor
will not be displayed.
“dSP AL” < > “yES” or “NO”
ENTER ALARM VALUES =
If “YES” was selected for display alarm values, this will select if alarm
values may be modified from the front panel. (If “NO” was selected for
display alarm values, then this step will default to “NO” and will not be
displayed for selection.)
“ENt AL” < > “yES” or “NO”
DISPLAY HYSTERESIS VALUES
If the alarm option is installed, this selects whether the hysteresis values
will or will not be displayed.
“dSPHYS” < > “yES” or “NO”
ENTER HYSTERESIS VALUES =
If “YES” was selected for display hysteresis values, this selects whether
hysteresis values may be modified from the front panel. (If “NO” was
selected for display hysteresis value, then this step will default to “NO” and
will not be displayed for selection.)
“ENtHYS” < > “yES” or “NO”
= Note: This sequence may be locked-out due to other programmed sequences.
* Note: This function operates independent of the state of the “PGM. DIS.” pin.
RESET LATCHED ALARMS
If the alarm option is installed and if either alarm is programmed to latch,
this will select if a latched alarm(s) can be reset from the front panel.
“rSt AL” < > “yES” or “NO”
DISPLAY PEAK/VALLEY MEMORY BUFFER
If the integrator/totalizer option is installed, this selects whether peak and
valley buffers will be displayed.
“dSPbUF” < > “yES” or “NO”
RESET PEAK/VALLEY MEMORY BUFFER =
If “YES” was selected for the previous step, this selects whether the peak
and valley buffers may be reset from the front panel. (If “NO” was selected,
then this step defaults to “NO” and will not be displayed for selection.)
“rStbUF” < > “yES” or “NO”
SELECT DISPLAY*
If the integrator/totalizer option is installed, this selects whether the
display can be switched from input display to total display and from total
display to input display.
Note: When “NO” is selected, whatever display (Input or total) is shown, willbe
the only display accessible.
“SELdSP” < > “yES” or “NO”
RESET TOTAL*
If the integrator/totalizer option is installed, this selects whether the total
can be reset from the front panel.
“rSttOt” < > “yES” or “NO”
-9-
TEMPERATURE OFFSET VALUE =
If the Integrator/Totalizer/Peak/Valley/Temperature Offset option is
installed, this selects whether the programmed offset value will be displayed.
“dSPOFF” < > “yES” or “NO”
ENTER OFFSET VALUE =
If “YES” was selected for the previous step, this selects whether the offset
value can be entered from the panel. (If “NO” was selected, then this step
defaults to “NO” and will not be displayed for selection.)
“ENtOFF” < > “yES” or “NO”
Depending on functionsselected under Pro 3and Pro 6, alarms,hysteresis,
peak, valley and offset values can be monitored and/or changed with PGM.
DIS. istied to COMM. This provides a “QUICK PROGRAMMING” method
for “day to day” process changes. (See QUICK PROGRAMMING SECTION
for more details.)
= Note: This sequence may be locked-out due to other programmed sequences.
* Note: This function operates independent of the state of the “PGM. DIS.” pin.
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MODULE #4 - PROGRAM DIGITAL FILTER AND REMOTE INPUT
PROGRAM DIGITAL FILTERING
If the displayed process signal is difficult to read due to small process
variations or noise, increased levels of filtering will help to stabilize the
display. This programming step may be used in conjunction with display
rounding programming (Pro1&2)to help minimize this effect. Although the
digital filter features a “moving window” to help minimize response time,
higher degrees of filtering levels will have slightly longer response times.
“FILter” < > “0” - no digital filtering
PROGRAM FUNCTION OF E1-CON AND OPTIONAL E2-CON
The function of the remote input “E1-CON” (TBA #4) and, if the totalizer
option is installed, the remote input “E2-CON” (TBA #8) are the same.
Functions are activated, as described in the appropriate function, when
connected to signal common (TBA #7). Whether a function is edge or level
activated, it must be held low for a minimum of 20 msec in order for the
function to occur.The remote input pinscan be used simultaneously andwith
any combination of functions. When pins are tied together and activated,
E1-CON function is generally performed first.
“E1-CON”< > “0” - If the Totalizer/Peak/Valley/Display Offset option is
“1” - normal filtering
“2” - increased filtering
“3” - maximum filtering
installed, a negative going edge offsets the displayed
temperature to zero. (At the timethe E-Pin is activated,
the value of the actual temperature being displayed is
placed in the location of the display offset value. To
bring the unit into the normal temperature display
mode, reset the offset value to zero via the front panel.)
“1” - A negative going edge resets the contents of the
totalizer to zero. Totalization commences regardless
of the state of the remote input.
“2” - A negative going edge resets the contents of the
totalizer to zero and allows totalization as long as the
input is low. If the input goes high, totalization is
stopped and the contents are saved. This acts as a
totalization enable control from Time 1 to Time 2.
“3” - A low level allows totalization as long as the input is
low. If the input goes high, totalization is stopped and
the contents are saved. This acts as a totalization
enable control from Time 1 to Time 2.
“4” - A low levelholdsthe display (display hold). While this
input is low, the indicator continues to process the
input signal and drive the alarms, totalizer, etc., with
the actual signal. The contents of the totalizer are held
at the same time the input display is held.
Note: If display hold is activated, and input value is
requested via serial, the value on the display will be
sent instead of the actual input value at that time.
“5” -A negative going edgeresetsboth peak and valley buffers.
Note: If P/V is called up, a change will not appear on the
display until the next time the P/V is called up.
“6” - A negative going edge resets only the peak buffer and
the indicator enters a peak reading display mode as
long as the input is low. If the input goes high, peak
detection and indication are stopped and the last peak
reading is retained.
“7” - A negativegoing edge resets only the valleybufferand
the indicator enters a valley reading display mode as
long as the input is low. If the input goes high, valley
detection and indication arestopped and the last valley
reading is retained.
“8” - If the alarm option is installed, a negative going edge
resets the latched alarm(s).
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PROGRAM FUNCTION OF E1-CON AND OPTIONAL E2-CON
(Cont’d)
“9” - If the alarm option is installed, a low level resets a latched or
unlatched alarm into its inactivestate. This provides manual
override of alarms for system start-up and other unusual
events such as system testing.
“10” - A negative going edge toggles the display between “input”
and “total” (from input to total, or vice versa). No action is
taken on the positive going edge.
“11” - A negative going edge zeros(tares) the input signal and adds
the value that was in the input display to the totalizer value,
every time thisoperation is performed. The time-base, scale
factor and low cut-out in “Module #5” are in affect disabled,
when this function is selected.
“12” - Display hold with offset. Anegative going edge tares (zeros)
the input signal. Prior to the offset operation, the input
signal is saved and held (display hold) as long as the remote
input pin is low. On the positive edge, the input display will
show zero. If there is an increase tothe input signal while the
remote input is low, the display will reflect (show) the
increase at the positive edge.
“13”- Instrument reading synchronization. A lowlevel disables all
meter operations (alarms, total, analog out,etc.). A positive
edge resets the start of the A/D conversion, to allow
synchronization with external processes and controls.
While in this function, the other E-CON pin will be
operational.
“14”- Print request. Transmits data according to the print options
that have been selected in Program Module #7. If the low
time exceeds 800 msec, a second print-out may occur.
“E2-CON”<>Ifthetotalizer option is installed, E2-CON has the
same programmable functions as E1-CON.
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MODULE #5 - PROGRAM INTEGRATOR/TOTALIZER
Programming for the integrator/totalizer consists of four programming
steps: totalizer decimal point position, time base, scale factor and low
temperature disable. Note that the decimal point position of the
integrator/totalizer can be set independent ofthe decimal point position of the
input. The totalizer value will roll over and flash when the total exceeds,
999999 or -99999, indicating an overflow condition. Reverse signal input
will cause thetotalizer value to count inthe opposite direction and eventually
no longer be in an overflow condition.
PROGRAM DECIMAL POINT POSITION FOR THE
INTEGRATOR/TOTALIZER
The decimal point position for the totalizer are as follows:
“dECPNt” < > “0”
PROGRAM INTEGRATOR/TOTALIZER TIME BASE
The time base determines the rate at which readings increase. The
integrator/totalizer display is updated
base selected, but longer time bases decrease the magnitudeof each increase.
The three time bases are per second,perminuteandper hour. A constant input
temperature of 100°, for example, would integrate/totalize to 100° in one
second (with a TB of 1 sec.), 100° in oneminute(with a TB of 1 min.), and 100°
in one hour (with a TB of 1 hr.). (Note: Input changes can be made
synchronous to the display by programming E1 or optional E2-CON pin for
function 13, Instrument reading synchronization.) A multiplying scale factor
may be used to span the standard time ranges (or divide if scale factor < 1).
The following equation expresses the integration/totalization process.
D.T.
S.F. =
I.D. TIME I.D.D.P.
S.F. = Programmable Scale Factor
D.T. = Desired Totalizer value for a
fixed time duration
T.B. = Programmable Time Base
T.B.xD.T.D.P.
x
“0.0”
“0.00”
“0.000”
“0.0000”
1
times per second regardless of time
2
2
TB = If Program Select Number Chosen Is:
D.T.D.P. = Desired Totalizer Value Decimal Point
I.D.D.P. = Input Display Value Decimal Point
“tbASE” < > “0” - per second
PROGRAM THE INTEGRATOR/TOTALIZER SCALE FACTOR
As explained in the previous programming step, a multiplying scale factor
can be used to scale the update rate as required. This may be used to span the
standard ranges. A scale factor of “1.000” has no effect on the standard ranges.
“0” for sec. 1
“1” for min. 60
“2” for hr. 3600
I.D. = Input Display Value
TIME = Actual Time period in seconds
01
0.0 10
0.00 100
0.000 1000
0.0000 10000
01
0.0 10
“1” - per minute
“2” - per hour
“SCLFAC” < > “0.001” to “100.000”
Enter in Formula
Enter in Formula
Enter in Formula
PROGRAM THE LOW-END CUTOUT (low temperature level
disable)
In order to prevent false integration/totalization in situations where
integration/totalization is undesirable, a programmable setpoint can be used
to disable integration/totalization whentheinput temperature falls below this
low-end cutout level.
“Lo-cut” < > “-999” to “9999”
-13-
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