Omega DPS3100 User Manual
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DPS3100 & DPS3200 series
Programmable Scanners
TABLE OF CONTENTS
SPECIFICATIONS................................................................................................................................................................ 3
DESCRIPTION...................................................................................................................................................................... 4
DISPLAYING PARAMETERS............................................................................................................................................. 5
Table 1. How to Display Parameters................................................................................................................................. 5
DISPLAY MODES............................................................................................................................................................ 5
Table 2. Display Modes..................................................................................................................................................... 6
Elapsed Time Mode............................................................................................................................................................ 6
Scan Mode..........................................................................................................................................................................6
High/Low Channel Mode ................................................................................................................................................... 7
Deviation Mode.................................................................................................................................................................. 7
Types of Deviation Displays.......................................................................................................................................... 7
Difference Mode................................................................................................................................................................. 8
SETUP.................................................................................................................................................................................... 8
'SYS' Parameter List........................................................................................................................................................... 9
CH Parameter List.............................................................................................................................................................. 9
CHANNEL CONFIGURATION.......................................................................................................... ............................... 10
Setup For Input Type.................................................................................................................................................... 10
Setup for Voltage or Current Input:.................................................................................................................................. 10
Setup For Channel ON/OFF......................................................................................................................................... 10
Setup For Decimal Point Position ............................................................................................... ................................. 10
Setup For High Scale.................................................................................................................................................... 10
Setup For Low Scale .................................................................................................................................................... 11
Setup For Offset ........................................................................................................................................................... 11
Setup For Tare.............................................................................................................................................................. 11
Setup For Setpoint........................................................................................................................................................ 11
Setup for Universal Relay (Channel 1 Relay) .............................................................................................................. 12
Setup For Limits........................................................................................................................................................... 12
Setup For Deadband..................................................................................................................................................... 12
Setup For Relay Normally Open/Closed...................................................................................................................... 12
Setup For Engineering Units........................................................................................................................................ 13
Setup for Thermocouple/ Thermistor/ RTD Inputs:......................................................................................................... 13
Turning Channels ON/OFF:......................................................................................................................................... 13
Temperature units:........................................................................................................................................................ 13
Setup Examples................................................................................................................................................................ 13
Example #1: Use of the OFFSET Parameter................................................................................................................13
Example #2: Use of the LOW SCALE Parameter........................................................................................................ 14
Example #3: Use of the TARE Parameter.................................................................................................................... 14
SYSTEM CONFIGURATION ............................................................................................................................................ 14
Setup For Display Options ............................................................................................................................................... 14
Table 3. Display Options.............................................................................................................................................14
Setup For Display Time.................................................................................................................................................... 14
Setup For Relay Latch/Non-Latch.................................................................................................................................... 15
Relay Latched Mode: ................................................................................................................................................... 15
Relay Non-Latched Mode:........................................................................................................................................... 15
Setup for Buzzer............................................................................................................................................................... 15
Setup For Cold Junction Calibration................................................................................................................................ 15
Setup For Channel Calibration......................................................................................................................................... 15
Input Range Setup (for current and voltage): ................................................................................................................... 15
Voltage Range Setup (0-10vdc) ................................................................................................................................... 15
Voltage Range Setup (for millivolt inputs) .................................................................................................................. 16
Current Range Setup..................................................................................................................................................... 16
Correct Range Settings................................................................................................................................................. 16
Thermocouple Calibration Procedure............................................................................................................................... 16
SAVING PARAMETER:..................................................................................................................................................... 16
PEAKS................................................................................................................................................................................. 17
PROGRAMMING FLOW CHARTS:.................................................................................................................................. 17
RATE ................................................................................................................................................................................... 20
LIMITS................................................................................................................................................................................. 20
OUTPUTS............................................................................................................................................................................ 20
Open Collector Option ..................................................................................................................................................... 20
Figure 1. Open Collector Hookup Example ................................................................................................................ 20
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TABLE OF CONTENTS
Electro-Mechanical Relay Option.................................................................................................................................... 20
Figure 2. Electro-mechanical Relays Hookup Example...............................................................................................20
FIG- 3. CONNECTIONS & REAR VIEW OF INSTRUMENT ........................................................................................ 21
POWER................................................................................................................................................................................ 21
OUTPUT CONNECTOR PIN ASSIGNMENT................................................................................................................... 22
Table 1. DPS3000 Series Output Connector Pin Assignments......................................................................................... 22
TROUBLE SHOOTING...................................................................................................................................................... 23
Factory Channel settings:................................................................................................................................................. 23
Factory default settings for voltage, current and millivolt are:......................................................................................... 23
ERROR MESSAGES AND SOLUTIONS.......................................................................................................................... 23
MOUNTING....................................................................................................................... ................................................. 24
Figure - 4. Panel Cutout and mounting hole dimensions................................................................................................. 24
Warranty............................................................................................................................................................................... 25
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SPECIFICATIONS
(Typical @ 25C and rated supply voltage unless otherwise specified)
STANDARD INPUTS
* 4-20ma 10-50ma 0-5Vdc 0-10Vdc
* Thermocouple inputs: J,K,T,E,R,S,B
* Cold junction compensation error: +/- 1C (10C to 40C)
* Open input indication: HELP displayed
* Temperature displayable in Degrees C or F
* Non standard inputs available --- consult factory.
ANALOG TO DIGITAL CONVERSION
* 4-1/2 Digit (20,000) Count) A/D Converter
* Dual slope integrating converter with 7 conversions /sec. (typical) rate.
SCAN RATE
* Fixed: two channels per second
DISPLAY
* Red seven segment di splays--0.39" (10mm) digi t height
* Over range indication: HELP
* Display test: Briefly displays 8.8.8.8.8.8.8 on power up.
* Seven digit display
SCALE/OFFSET
* Scale programmable from 1-30000 units
* Offset programmable from 0-99.99 MA (For MA Input)
* Offset programmable from 0-9.999 MV (For Voltage Input)
* Programmable decimal point.
RELIABILITY/ACCURACY
*Calibration: NIST traceable (for thermocouples)
*Temperature resolution: 1C/1F
* Warranty: 1 Year
* Recalibration recommended at 12 month interval
POWER REQUIREMENT
* 120Vac --- 60 HZ (Standard)
* 240Vac --- 50 HZ (optional)
* 15VDC (optional)
OUTPUT (optional)
* Open collector outputs -- 100ma maximum sink, limited to 50ma per output
* Relays: Single pole single throw, 1 Amp @ 28Vdc or 0.5 Amp @ 120Vac resistive
*Output termination: Euro-style plug-in connector
Manual File: omga3132_0404
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DPS3104 and DPS3204 are four channel units. Therefore, any reference to channel numbers
with respect to these models is for channels 1 through 4 only
DPS3200 (DPS3207) are seven channel units, and therefore, any reference to channel numbers
NOTE
. DPS3100 (DPS3107) and
DESCRIPTION
DPS3000 Series instruments are multi-channel scanners that pack a number of functions into one unit. Tasks that require
multiple monitors can now be accomplished by using only a single unit. Signals from a number of different transducers
can be brought into screw terminals that are co nveniently located on the ba ck panel of the instrument. The unit
automatically scans through each channel, displaying the channel number and process value. In addition to displaying
temperature, pressure, strain, etc. these units also boast some of the most frequently used functions such as process
differential between channels, monitoring hi gh and low readings on individual channels, rate o f change, tracking channels
with highest and lowest readings, comparison of process with a preset set-point, etc.
Signals from thermocouples are linearized and can be displayed in degrees Celsius or Fahrenheit. Transducers that put out
4-20 ma. current loop, 0-5Vdc, or other linear signals can be scaled from the front keys. This gives the flexibility of
displaying various parameters directly in engineering units. Channels that do not have signals connecte d to them may be
programmed off by the operator and will not be scanned or displayed.
On power up (check for proper power connections before powering up) the unit will first display 8.8.8.8.8.8.8. as a display
test and then the software revision number. The format is 'rEn x.xx' where x.xx is the revision leve l.
NOTE: Check model number for input type & display units -- thermocouples, 4-20ma, 0-10Vdc etc...
MODEL NO. DISCRIPTION
DPS3200- (* ) - (* * ) 7 Channel, programable input type scanner.
DPS3100- (* ) - (* * ) 7 Channel, programable input type scanner
DPS3204- (* ) - (* * ) 4 Channel, programable input type scanner
DPS3104- (* ) - (* * ) 4 Channel, programable input type scanner
(*) DPS3100 & DPS 3104 DPS3200 & 3204
TC J, K, T or E T /C J, K, T, E Thermocouple, 4-20ma, 0-10vdc
R ‘R’ thermocouple R Thermocouple, 4-20ma, 0-10vdc
S ‘S’ thermocouple S thermocouple, 4-20ma, 0-10vdc
B ‘B’ thermocouple B thermocoupe, 4-20ma, 0-10vdc
RTD RTD (385, 392) RTD (385, 392), 420ma,0-10vdc
TH Thermistor (400 Series) Thermistor (400 Series), 4-20ma, 0-10vdc
MV 100 millivolt 0-100 millivolt, 4-20ma,0-10vdc
V 0-10 volt DC 0-10 Volt dc
C 4-20ma current 4-20 Milliamp
P ------- 0-100 millivolt, 4-20ma, 0-10vdc
OPTIONS:
-1 240vac Power option -4 dc output (3100, 3200)
-2 15dc Power option -5 Rely putput (3104, 3204)
-3 Relay output (3100, 3200) -6 dc output (3104, 3204)
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DISPLAYING PARAMETERS
DPS3000 Series keeps track of various parameters and these may be displayed by pushing appropriate keys on the front
panel. The parameters that are tracked are:
a) Channel's high peak d) Channel with the lowest reading
b) Channel's low peak e) Process deviation of each channel from pre-programmed setpoint
c) Elapsed time f) Process differential of a channel with respect to any other channel
c) Channel with the highest reading g) Rate of process change per minute for each channel
Table 1 explains how to display the above mentioned parameters.
Table 1. How to Display Parameters
TO DISPLAY PERFORM FOLLOWING STEPS
1) Channel's high peak a) Se lect channel whose high peak is desi red (push CH SEL key)
b) Push HI/LO key once
2) Channel's low peak a) Select channel whose low peak is desired (push CH SEL key)
b) Push HI/LO key twice --- 1st push displ ays high peak,
2nd push , low peak.
3) Rate of process change a) Select channel whose rate is desired (push CH SEL key)
b) Push RATE key once.
4) Channel devia tion a) Selec t desired channel (by pushing CH SEL key)
b) Push RATE/DIFF key twice --- 1st push displays rate,
2nd push, deviation.
5) Channel differentials a) Select desired channel (by pushing CH SEL key).
b) Push RATE/DIFF key three times -- 1st push displays rate,
2nd push: deviation, 3rd push : differential.
c) Each additional push moves to the differential between selected
channel and the next channel.
d) e.g. the sequence for channel 1 is: RATE, CH1-SP, CH1-CH2,
CH1-CH3, CH1-CH4, CH1-CH5, CH1-CH6, CH1-CH7
6) Elapsed time a) Push TIME key.
7) Channel with highest a ) Push HI/LO key once
process reading
8) Channel with lowest a) Push HI/LO key twice ----1st push: high channel
process reading 2nd push: low channel.
9) Scan a) If the unit is holding, push the SCN/HLD key once.
10)Hold a) If the unit is scanning, push the SCN/HLD key once.
DISPLAY MODES
DPS3000 Series has multiple display modes and can be programmed to either scan, display the channel with the highest
reading, display the channel with the lowest reading, deviation between channel's process variable and a pre-programmed
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setpoint, difference between any two selected channels or just run as a timer. In the timer mode the unit keeps track of
process run time with crystal controlled accuracy. Elapsed Time display format is 'HH.MM.SS' for hours, minutes, and
seconds. The desired display mode is selected during SYS SETUP ---- (for details refer to the SYS CONFIGURATION
section).
Table 2. Display Modes
MODE FUNCTION PERFORMED
1) Elapsed time Unit displays elapsed time since power up or last time reset.
2) Scan All active channels are automatically scanned.
Channels that are turned off are not scanned or displayed.
3) High Channel The unit will compare all active channels against each other and
display the one that has the highest process reading.
4) Low Channel The unit will compare all active channels against each other and
display the one that has the lowest process reading.
5) Deviation The unit scans all active channels and displays the deviation of
process variable from a pre-programmed setpoint.
6) Channel Differential The unit continuously displays the difference of process between
any two selected channels.
The following paragraphs give a detailed description and operation of various modes.
Elapsed Time Mode
DPS3000 Series can be programmed to run as timer. In this mode the unit will
indicate elapsed time in hours, minutes and seconds. The display format is
'HH.MM.SS'. This mode is selected during SYS Setup by opting for 'ELPSD
t'. The elapsed time is the time passed since the unit was turned on or when the
time was last reset. To reset the time, first push the TIME key and while
keeping it pressed, push the RESET key. The display will show 'rESEt' and on
release of the RESET key, the display will reset to '00.00.00' and begin timing.
The elapsed time can also be momentarily displayed while the unit is operating
in any other display mode. This is done by pushing the TIME key once. The
unit will first display the word 'ELPSd t' followed by the elapsed time. This will stay in the display window for a brief
period and then the unit will revert to the normal display mode.
Scan Mode
When setup for scan mode, individual channels are displayed for a programmed
period of time. At the end of that time period the, display automatically switches
to the next channel. For ease of reading, the display first shows the channel
number (Format: 'CHANEL 1') and then the process variable along with the
programmed three digit engineering units e.g. 23.45 PSI.
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Display time for each channel is programmable from 1-999 seconds (16.65 min.). This is useful for adjusting display time
to a rate which is consistent with the type of process being monitored. Scan time for each channel is independent of
display time. This permits programming long display times without losing track of the process on other channels.
The display can also be put in a hold mode by pushing the SCN/HLD key. When
this key is pushed, the display will briefly show 'HOLd' after which the display
will stop on the channel it was indicating. Putting the unit in HOLD mode inhibits
automatic display scanning and shows only one particular channel. While the
display is held on one channel, internally all the enabled channels are continuously
scanned for rate, difference, limits and other parameters. Also, during HOLD
mode the unit will periodically flash the display 'Cx HOLd' ( x=channel # on
hold) to indicate the status of the display mode. If an attempt is made to hold on a
channel that has been turned off then the unit will indicate so by displaying in the
format 'CHx OFF' ( x=channel # off).
To select another channel for display during hold mode, push the CH. SEL key. Each push will increment the channel
number. The display will first show the channel number (e.g. 'CHANEL 2' for channel # 2) followed by the process
variable in the form '0.123 PSI'. When channel selection is initiated using the CH. SEL key, the unit starts with
channel #1 and steps thru to channel #7 with each push of the key.
To take the unit out of HOLD mode and back into SCAN mode, push the SCN/HLD key. The display will briefly show
'SCAN' and then start scanning the channels.
High/Low Channel Mode
DPS3000 Series compares all the channels against each other and constantly
tracks the channel with the highest and lowest process value. On push of a key,
the channel number and the value of process variable can be displayed. Also,
during SYS Setup, the unit can be programmed so that instead of scanning all the
channels it will only display the channel with highest or lowest process variable.
As the process changes, the display automatically switches over to the channel
with the highest (or lowest, if so programmed) reading. This is a very useful
function for applications involving multi-point monitoring of temperature in a
single process. For example, this feature can be used to find hot spots in a kiln.
During high or low channel scan mode the display will periodically flash 'HI CHAN' or 'LO CHAN' (depending upon
the selected mode) to indicate the status of the display mode.
To display high and low channel from any other display mode simply push the HI/LO key. Pushing this key once will
first display 'HI CHAN' and then the channel number and the process value will be displayed in the format 'C2 1234'.
The second push on the HI/LO key will first show 'LO CHAN' in the display window, and then the channel with the
lowest process value will be displayed.
NOTE: (i) The second push, to display low channel, must be initiated before the display reverts back to the normal
display mode.
(ii) If a channel is selected using the CH. SEL key prior to the push on the HI/LO key, then instead of
displaying high and low channels, the unit will display high and low peaks of the active channel.
Therefore, if it is desired to display high and low channels and not the peaks, do not select a channel
before pushing the HI/LO key.
Deviation Mode
In deviation display mode, DPS3000 Series will show the differential between a pre-programmed setpoint and process
variable being monitored on each channel by the scanner. Setpoint is programmed during CH Setup and can be any value
over the range of selected scale or thermocouple being used.
Types of Deviation Displays
There are two different ways of displaying channe l deviation from their set point values:
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a) The first one is a momentary display in which the deviation is indicated for a short time. Following this brief
display time, the unit reverts to its normal mode of operation (scanning, differential, timer etc.). To achieve this, first
select the channel whose setpoint deviation is desired. This is done by
pushing the CH. SEL key. Next, push the RATE key twice. The first push
displays the rate/minute value. The second push will display the deviation
value. Before showing the deviation, the display will read 'CH2 - SP' ( for
CHannel 2 SetPoint).
b) The second method of displaying deviation is by selecting the
'dSP dEN' option when programming the Display Option during the SYS
Setup. If this method is selected, the display will scan through all the active
channels and display their deviation. The display format is 'd2 1234' (d
stands for deviation).
The unit can also be put on HOLD at any channel by pushing the SCN/HLD key. If any other channel's deviation is
desired, it may be obtained by pushing the CH. SEL key. If an attempt is made to hold the display on a channel that has
been turned off, then the unit indicates this by displaying 'CHx OFF' (x=channel #). DPS3000 Series will keep track of
all other parameters while programmed for this mode (i.e. limits, peaks, rate, process value, channel differential etc). All
of these may be displayed by pushing the respective keys.
Difference Mode
In this mode the system continuously displays the difference of process
variable between any two selected channels. The two active channels are
selected during SYS Setup mode. To remind the operator of the current
display mode and also the two channels, the display flashes the channel
numbers every few seconds (e.g. 'CH1 - CH2' for displaying difference
between channel #1 and channel #2).
If the unit is not programmed for difference mode, the differential between
any two of the seven channels can be briefly displayed by pressing the DIFF
key.
The procedure for doing so is to first select the channel whose differential with another channel is desired. This is done by
pushing CH SEL key. Each push on this key will display the selected channel in the format 'CHANEL x'(x=channel #).
When the desired channel has been selected, press the DIFF key three times. The first push will display the rate of
process change on that channel. The second push will show the process deviation from the programmed setpoint. The third
push will flash a display of the form 'CH1 - CH2' and then a differential value. Additional pushes on DIFF key will
sequence thru the channels and will be indicated as below:
CH1 - CH3, CH1 - CH4, CH1 - CH5, CH1 - CH6, CH1 - CH7, CH1 - SP
SETUP
Setup mode provides a means to customize the monitor to suit a particular application. It allows programming such
parameters as temperature units, limits, display mode, relay deadband, etc.
SETUP mode has 2 sections:
a) SYS setup section to set system parameters
b) CH setup section to set Channel parameters for each channel.
To get into SETUP mode, push the SETUP key twice. The first push displays
elapsed time and the second push brings the unit into the SETUP mode.
SETUP mode is indicated by 'SETUP' in the display window (the SETUP
LED indicator will also be illuminated) followed by 'ENtR PC' (for ENteR
PassCode). The passcode feature has been provided to keep unauthorized
personnel from changing any parameters. Each of the five keys on the front
panel are labeled with a number in the lower right corner. The pass-code is a
four digit combination of these numbers. Enter the pass-code when the displays reads 'ENTR PC' . Passcode for
DPS3000 Series is 3254.
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