Operating instructions
Electronic digital pressure sensor
EPS25-xxxx-1003
AutomationDirect
3505 HutchinsonRoad
Cumming, GA 30040
Contents
1 Preliminary note ...................................................................................................4
1.1 Symbols used ................................................................................................4
2 Safety instructions ...............................................................................................4
3 Functions and features ........................................................................................5
3.1 Applications ...................................................................................................5
4 Function ...............................................................................................................7
4.1 Parameter setting, evaluation ........................................................................7
4.2 Switching function ..........................................................................................8
5 Installation............................................................................................................8
6 Electrical connection ............................................................................................9
7 Operating and display elements ........................................................................10
8 Menu .................................................................................................................. 11
8.1 Menu structure: Main menu ......................................................................... 11
8.2 Explanation of the menu ..............................................................................12
8.2.1 Explanation of the menu level 1 .........................................................12
8.2.2 Explanation of the menu level 2 .........................................................12
9 Parameter setting ..............................................................................................13
9.1 Parameter setting in general .......................................................................13
9.2 Configure display (optional) .........................................................................15
9.3 Set output signals ........................................................................................16
9.3.1 Set output functions ............................................................................16
9.3.2 Define switching limits for the hysteresis function ..............................16
9.3.3 Define switching limits for the window function ..................................16
9.4 User settings (optional) ................................................................................16
9.4.1 Set delay for the switching outputs .....................................................16
9.4.2 Set output logic for the switching outputs ...........................................17
9.4.3 Set damping for the switching signal ..................................................17
9.4.4 Read min/max values for the system pressure ..................................17
9.4.5 Reset all parameters to factory setting ...............................................17
9.4.6 Set color change of the display ........................................................18
9.4.7 Graphical depiction of the colour change of the display .....................19
10 Operation .........................................................................................................21
2
10.1 Read set parameters .................................................................................21
10.2 Self-diagnosis / error indications ...............................................................22
11 Technical data and scale drawing ....................................................................23
11.1 Setting ranges ............................................................................................23
11.2 Further technical data ................................................................................24
12 Factory setting .................................................................................................25
3
1 Preliminary note
1.1 Symbols used
► Instructions
> Reaction, result
[…] Designation of keys, buttons or indications
→ Cross-reference
Important note
Non-compliance can result in malfunction or interference.
Information
Supplementary note.
2 Safety instructions
• Please read this document prior to set-up of the unit. Ensure that the product is suitable for your application without any restrictions.
• If the operating instructions or the technical data are not adhered to, personal injury and/or damage to property can occur.
• Check the compatibility of the product materials with the media to be measured in all applications.
• Correct condition of the device for the operating time can only be guaranteed if the device is only used for media to which the wetted materials are sufficiently resistant → 3.1 Applications.
• If the devices are used in gas applications with pressures > 362 psig (25 bar) the notes in chapter 3.1 for devices with the marking **
)
must be absolutely observed.
The responsibility whether the measurement device is suitable for the respective application lies with the operator. The manufacturer assumes no liability for consequences of misuse by the operator. Improper installation and use of the devices results in a loss of the warranty claims.
4
3 Functions and features
The device monitors the system pressure of machines and installations.
3.1 Applications
Type of pressure: relative pressure
Measuring Range Proof Pressure* Bursting Pressure
0…5800 11580 24650
0…400
0…40
0...3620
0...250
0…25
0…1450
0…100
0…10
0...362
0...25
0...2.5
50
4350
300
30
800
80
7250
500
2175
150
15
110
9400
650
65
1700
170
15950
1100
5075
350
35
5
6
Measuring Range
-14.5…145
-1…10
-0.1…1
0...36.2
Proof Pressure*
1087
75
7.5
290
Bursting Pressure
2175
150
15
725
0...2.5
0...250
0...14.5
0...1000
0...100
0...29.5
-14.5...14.5
-1000...1000
20
2000
145
10000
1000
290
290
20000
50
5000
450
30000
3000
880
725
50000
-100...100
2000 5000
-29.6...29.6
590 1450
*
)
With static overload pressure or max. 100 million pressure cycles.
**
)
For gas applications 362 psig (25 bar) maximum pressure !
MPa = (measured value in bar) ÷ 10 kPa = (measured value in bar) x 100
Avoid static and dynamic overpressure exceeding the proof pressure (specified maximum permissible pressure) by taking appropriate measures.
The indicated bursting pressure must not be exceeded.
Even if the bursting pressure is exceeded only for a short time, the unit may be destroyed. ATTENTION: Risk of injury!
The units are vacuum resistant.
Pressure Equipment Directive (PED):
The units comply with the Pressure Equipment Directive and are designed and manufactured for group 2 fluids (Non-Hazardous, Nonflammable,
Non-Oxidizing) in accordance with the sound engineering practice.
4 Function
• The unit displays the current system pressure.
• It generates output signals according to the operating mode and the parameter setting.
4.1 Parameter setting, evaluation
OUT1 (pin 4) • Switching signal for system pressure limit value.
OUT2 (pin 2) • Switching signal for system pressure limit value.
7
4.2 Switching function
OUTx changes its switching state if it is above or below the set switching limits
(SPx, rPx). The following switching functions can be selected:
• Hysteresis function / normally open: [OUx] = [Hno] (→ fig. 1).
• Hysteresis function / normally closed: [OUx] = [Hnc] (→ fig. 1).
First the set point (SPx) is set, then the reset point (rPx).
The hysteresis defined remains even if SPx is changed again.
• Window function / normally open: [OUx] = [Fno] (→ fig. 2).
• Window function / normally closed: [OUx] = [Fnc] (→ fig. 2).
The width of the window can be set by means of the difference between FHx and FLx. FHx = upper value, FLx = lower value.
P
1 2
SP rP
HY
t
Hno
1
0
Hnc
P = system pressure; HY = hysteresis; FE = window
FH
FL
When set to the window function the upper and lower limit values have a fixed hysteresis of 0.25 % of the final value of the measuring span.
5 Installation
Before installing and removing the unit: Make sure that no pressure is applied to the system.
► Insert the unit in a 1/4-18 NPT process connectione thread.
► Liquid or paste type thread sealer is not recommend.
If thread sealer is required use a tape type that is compatible with the media.
The sensor housing can be rotated by 345° with regard to the process connection. Do not rotate past the end stop!
8
6 Electrical connection
The unit must be connected by a qualified electrician.
The national and international regulations for the installation of electrical equipment must be adhered to.
Voltage supply according to EN 50178, SELV, PELV.
For the scope of validity cULus:
The device shall be supplied from an isolating transformer having a secondary Listed fuse rated either a) max 5 amps for voltages 0~20 Vrms (0~28.3 Vp) or b) 100/Vp for voltages of 20~30 Vrms (28.3~42.4 Vp).
The device shall be connected only by using any Listed (CYJV/7) or R/C
(CYJV2/8) cord in respect of Condition of Acceptability, having suitable ratings.
► Disconnect power.
► Connect the unit as follows:
BK
Core colors black
BN
BU
WH brown blue white
2
3
1
4
2 x PNP
1
2
4
3
BN
WH
BK
BU
OUT1: Binary switching output
OUT2: Binary switching output
Colors to DIN EN 60947-5-6
Example circuits
2 x NPN
L+
OUT2
OUT1
L
2: OUT2
4: OUT1
1
BN
2
WH
4
BK
3
BU
L+
L
2: OUT2
4: OUT1
1
BN
2
WH
4
BK
3
BU
L+
L
9
7 Operating and display elements
1 2 3 4 5 6 7 8
9 10 11 12
1 to 8: Indicator LEDs
LED 1 Switching status OUT1 (lights when output 1 is switched).
LED 8
LEDs
2 - 7
Switching status OUT2 (lights when output 2 is switched).
System pressure in the indicated unit of measurement.
9: [Enter] button [●]
-Selection of the parameters and acknowledgement of the parameter values.
10 to 11: Arrow keys up [▲] and down [▼]
-Setting of the parameter values (scrolling by holding pressed; incremental by pressing once).
12: Alphanumeric display, 4 digits
-Display of the current system pressure.
-Indication of the parameters and parameter values.
10
8 Menu
8.1 Menu structure: Main menu
RUN
1
2
[ ] are only active when assigned parameters have been selected.
11
8.2 Explanation of the menu
8.2.1 Explanation of the menu level 1
SPx/rPx Upper / lower limit value for system pressure at which OUTx switches with hysteresis setting. Prerequisite: OUTx setting is [Hno] or [Hnc]
FHx/FLx Upper / lower limit value for system pressure at which OUTx switches with window setting. Prerequisite: OUTx setting is [Fno] or [Fnc]
EF Extended functions / opening of menu level 2.
8.2.2 Explanation of the menu level 2
P-n
Lo
HI dAP rES ou1
Restore factory setting.
Output function for OUT1:
• Switching signal for the pressure limit values: hysteresis function [H ..] or window function [F ..], either normally open [. no] or normally closed [. nc].
ou2 uni
Output function for OUT2:
• Switching signal for the pressure limit values: hysteresis function [H . .] or window function [F . .] as normally open (. no) or normally closed (. nc) each.
dS1 / dS2 Switching delay for OUT1 / OUT2.
dr1 / dr2 Switch-off delay for OUT1 / OUT2.
Standard unit of measurement for system pressure (display):
[psi] / [bAr] / [mbar] / [MPA] / [kPA] / [inHG] coLr cFH / cFL diS
Output logic: pnp / npn.
Minimum value memory for system pressure.
Maximum value memory for system pressure.
Damping of the switch point.
Assignment of the display colors "red" and "green" within the measuring range.
Upper / lower value for color change.
Parameter only active after selection of a freely definable color window in the coLr parameter: [r-cF] or [G-cF].
Update rate and orientation of the display.
12
9 Parameter setting
During parameter setting the unit remains in the operating mode. It continues to monitor with the existing parameters until the parameter setting has been completed.
9.1 Parameter setting in general
3 steps must be taken for each parameter setting:
1
Select parameter
► Press [●] to get to the menu.
► Press [▲] or [▼] until the requested parameter is displayed.
2
Set parameter value
► Press [●] to edit the selected parameter.
► Press [▲] or [▼] for min. 2 s.
> After 2 s: setting value is changed: incrementally by pressing the button once or continuously by keeping the button pressed.
Numerical values are incremented continuously with [▲] or decremented with [▼].
3
Acknowledge parameter value
► Briefly press [●].
> The parameter is displayed again.
The new setting value is saved.
Set other parameters
► Press [▲] or [▼] until the requested parameter is displayed.
Finish parameter setting
► Press [▲] or [▼] several times until the current measured value is displayed or wait for
30 s.
> The unit returns to the process value display.
13
• Change from menu level 1 to menu level 2:
► Press [●] to get to the menu.
► Press [●].
> The first parameter of the submenu is displayed (here: [rES]).
• Locking / unlocking
The unit can be locked electronically to prevent unintentional settings.
► Make sure that the unit is in the normal operating mode.
► Press [▲] + [▼] simultaneously for
10 s.
> [Loc] is displayed.
10 s
During operation: [Loc] is briefly displayed if you try to change parameter values.
For unlocking:
► Make sure that the unit is in the normal operating mode.
► Press [▲] + [▼] simultaneously for
10 s.
> [uLoc] is displayed.
10 s
On delivery: not locked.
• Timeout:
If no button is pressed for 30 s during parameter setting, the unit returns to the operating mode with unchanged values.
14
► Press [▼] until [EF] is displayed.
• Exit a parameter without adopting the settings
To exit a parameter without adopting the settings:
► Press [▲] + [▼] simultaneously.
> Return to the menu level.
• Leaving the menu level
To leave the menu level:
► Press [▲] + [▼] simultaneously.
> Menu level 2 changes to level 1 or level 1 changes to display.
9.2 Configure display (optional)
► Select [Uni] and set the unit of measurement:
-[Psi],
-[bAr], [mbAr],
-[MPA], [kPA],
-[inHG]
The selectable units of measurement depend on the respective unit.
► Select [diS] and set the update rate and orientation of the display:
-[d1]: update of the measured values every 50 ms.
-[d2]: update of the measured values every 200 ms.
-[d3]: update of the measured values every 600 ms.
-[rd1], [rd2], [rd3]: display as for d1, d2, d3; rotated by 180°.
-[OFF] = The measured value display is deactivated in the Run mode.
The LEDs remain active even if the display is deactivated.
Error messages are displayed even if the display is deactivated.
Even with unsteady pressure characteristics [d1] provides optimum readability; the corresponding algorithms are stored.
15
9.3 Set output signals
9.3.1 Set output functions
► Select [ou1] and set the switching function:
-[Hno] = hysteresis function/NO,
-[Hnc] = hysteresis function/NC,
-[Fno] = window function/NO,
-[Fnc] = window function/NC.
► Select [OU2] and set the function:
-[Hno] = hysteresis function/NO,
-[Hnc] = hysteresis function/NC,
-[Fno] = window function/NO,
-[Fnc] = window function/NC.
9.3.2 Define switching limits for the hysteresis function
► [ou1] / [ou2] must be set as [Hno] or [Hnc].
► Select [SP1] / [SP2] and set the value at which the output is set.
► Select [rP1] / [rP2] and set the value at which the output is reset.
rPx is always smaller than SPx. The unit only accepts values which are lower than the value for SPx.
9.3.3 Define switching limits for the window function
► [ou1] /[ou2] must be set as [Fno] or [Fnc].
► Select [FH1] / [FH2] and set the upper limit value.
► Select [FL1] / [FL2] and set the lower limit value.
FLx is always lower than FHx. The unit only accepts values which are lower than the value for FHx.
9.4 User settings (optional)
9.4.1 Set delay for the switching outputs
[dS1] / [dS2] = switching delay for OUT1 / OUT2.
[dr1] / [dr2] = reset delay for OUT1 / OUT2.
► Select [dS1], [dS2], [dr1] or [dr2] and set a value between 0 and 50 s (at
0 the delay time is not active).
16
9.4.2 Set output logic for the switching outputs
► Select [P-n] and set [PnP] or [nPn].
9.4.3 Set damping for the switching signal
► Select [dAP] and set the damping constant in seconds
(value
T
: 63 %); setting range 0.000...4.000 s.
Damping affects [dAP] the switch point and the display
9.4.4 Read min/max values for the system pressure
► Select [HI] or [Lo] and briefly press [●].
[HI] = maximum value, [LO] = minimum value.
Delete memory:
► Select [HI] or [LO].
► Press and hold [▲] or [▼] until [----] is displayed.
► Briefly press [●].
9.4.5 Reset all parameters to factory setting
► Select [rES].
► Press [●].
► Press and hold [▲] or [▼] until [----] is displayed.
► Briefly press [●].
We recommend writing down your own settings before carrying out a reset
(→ 12 Factory setting).
17
9.4.6 Set color change of the display
► Select [coLr] and set the function:
-[rEd] = display color red (independent of the measured value).
-[GrEn] = display color green (independent of the measured value).
-[r1ou] = display color red when OUT1 switches.
-[G1ou] = display color green when OUT1 switches.
-[r2ou] = display color red when OUT2 switches.
-[G2ou] = display color green when OUT2 switches.
-[r-12] = Display color red when the measured value is between the limit values of OUT1 and OUT2.
-[G-12] = Display color green when the measured value is between the limit values of OUT1 and OUT2.
-[r-cF] = Display color red when the measured value is between the freely definable limit values [cFL]*
)
and [cFH]*
)
.
-[G-cF] = Display color green when the measured value is between the freely definable limit values [cFL]*
)
and [cFH]*
)
.
*
)
The parameters [cFL] and [cFH] can only be selected in the menu tree when [r-cF] or [G-cF] were activated.
► Select [cFH] and set the upper limit value.
(only possible when [r-cF] or [G-cF] were activated).
> The setting range corresponds to the measuring range and its minimum limit is [cFL].
► Select [cFL] and set the lower limit value
(only possible when [r-cF] or [G-cF] were activated).
> The setting range corresponds to the measuring range and its maximum limit is [cFH].
18
9.4.7 Graphical depiction of the colour change of the display
Display color change for the parameters
[r1ou] / [r2ou], mode hysteresis function
Display color change for the parameters [G1ou] / [G2ou], mode hysteresis
function
OUT1/
OUT2
OUT1/
OUT2
1 2
1 2
Measured value > switch point OUT1/OUT2;
Display = red
Measured value > switch point OUT1/OUT2;
Display = green
Display color change for the parameters
[r1ou] / [r2ou], mode window function
Display color change for the parameters
[G1ou] / [G2ou], mode window function
1 2
1 2
Measured value between FL1/FL2 and FH1/
FH2; Display = red
Measured value between FL1/FL2 and FH1/
FH2; Display = green
Color change display green
Color change display red
1 Initial value of the measuring range
2 Final value of the measuring range
19
Display color change for the parameters
[r-12], mode hysteresis function
Display color change for the parameters
[G-12], mode hysteresis function
OUT2 OUT2
OUT1 OUT1
1 2 1 2
Measured value between OUT1 and OUT2;
Display = red
Measured value between OUT1 and OUT2;
Display = green
Display color change for the parameters
[r-12], mode window function
Display color change for the parameters
[G-12], mode window function
FL2
FL2
FH1
FH1
FL1 FH2
1 2
Measured value outside FL1...FH1 and
FL2...FH2; Display = red
FL1 FH2
1 2
Measured value outside FL1...FH1 and
FL2...FH2; Display = green
1
2
Color change display green
Color change display red
Initial value of the measuring range
Final value of the measuring range
FL1/FL2 Lower limit value window function outputs OUT1 / OUT2
FH1/FH2 Upper limit value window function outputs OUT1 / OUT2
20
Display color change with parameter [r-cF] independent of OUT1 / OUT2.
Display color change with parameter
[G-cF] independent of OUT1 / OUT2 cFL cFH
1 2
Measured value between cFL and cFH;
Display = red cFL cFH
1 2
Measured value between cFL and cFH;
Display = green
Color change display green
Color change display red
1 Initial value of the measuring range
2 Final value of the measuring range cFL Lower limit value (independent of the output function) cFH Upper limit value (independent of the output function)
10 Operation
After power on, the unit is in the Run mode (= normal operating mode). It carries out its measurement and evaluation functions and provides output signals according to the set parameters.
Operating indicators → 7 Operating and display elements.
10.1 Read set parameters
► Press [●].
► Press [▲] or [▼] until the requested parameter is displayed.
► Briefly press [●].
> The unit displays the corresponding parameter value for approx. 30 s; then it changes to the process value display.
21
10.2 Self-diagnosis / error indications
The unit has many self-diagnostic options.
• It monitors itself automatically during operation.
• Warnings and faults are displayed (even if the display is deactivated).
none
SC flashes
SC1 flashes
SC2 flashes
Loc
OL
UL
Supply voltage too low.
flashes flashes Excessive current at flashes switching outputs OUT1
+ OUT2 *
)
Excessive current at switching output OUT1 *
)
.
flashes Excessive current at switching output OUT2* via pushbuttons.
Process value too high.
(measuring range exceeded)
Process value too low
(value below measuring range).
)
Parameter setting locked
.
► Check / correct the supply voltage.
► Check switching outputs for short-circuit or excessive current; remove the fault.
► Check switching output OUT1 for short-circuit or excessive current; remove the fault.
► Check switching output OU2 for short-circuit or excessive current; remove the fault.
► Unlock buttons → 9.1
Parameter setting in general
→“Locking / unlocking“.
► Check / reduce system pressure / select unit with corresponding measuring range.
► Check / increase system pressure / select unit with corresponding measuring range.
*
)
The respective output remains deactivated as long as the excessive current / short circuit continues.
22
11 Technical data and scale drawing
11.1 Setting ranges
SP1 / SP2 rP1 / rP2 cFH cFL min max min max min max min max
ΔP psig 40 5800 20 5780 20 5800 0 5780 20 bar 4
MPa 0.4
400
40
2 398 2
0.2
39.8
0.2
400
40
0 398 2
0.0
39.8
0.2
psig 40 3620 20 3600 20 3620 0 3600 20 bar 2 250 1 249 1 250 0 249 1
MPa 0.2
25 0.1
24.9
0.1
25 0.0
24.9
0.1
psig 10 1450 5 1445
5 1450 0 1445
5 bar 1 100 0.5
99.5
0.5
100 0 99.5
0.5
MPa 0.1
10 0.05
9.95
0.05
10 0 9.95
0.05
psig 4 bar 0.2
362
25
2 360 2
0.1
24.9
0.1
362
25
MPa 0.02
2.5
0.01
2.49
0.01
2.5
ΔP = step increment
0
0
0
360 2
24.9
0.1
2.49
0.01
23
SP1 / SP2 rP1 / rP2 cFH cFL min max min max min max min max
ΔP psig -13.5
145 -14 144.5
-14 145 -14.5
144.5
0.5
bar -0.9
10 -0.95
9.95
-0.95
10 -1 9.95
0.05
MPa -0.09
1 -0.095 0.995 -0.095
1 -0.1
0.995
0.005
psig 0.4
36.2
0.2
36 0.2
36.2
bar 0.02
2.5
0.01
2.49
0.01
2.5
0
0
36 0.2
2.49
0.01
kPa 2 250 1 249 1 250 0 249 1 psig 0.1
14.5
0.05
14.45
0.05
14.5
mbar 10 1000 5 995 5 1000
0
0
14.45
995
0.05
5 kPa 1 100 0.5
99.5
0.5
100 inHG 0.2
29.5
0.1
29.4
0.1
29.5
0
0
99.5
29.4
0.5
0.1
psig -14.3
14.5
-14.4
14.4
-14.4
14.5
-14.5
14.4
0.1
mbar -980 1000 -990 990 -990 1000 -1000 990 10 kPa -98 100 -99 99 -99 100 -100 99 1 inHG -29.0
29.6
-29.2
29.4
-29.2
29.6
-29.6
29.2
0.2
ΔP = step increment
11.2 Further technical data
Further technical data and scale drawing at www.automationdirect.com
24
dAP
Uni colr diS dr1 dS2 dr2
P-n cFH cFL
SP1 rP1
OU1
OU2
SP2 rP2 dS1
12 Factory setting
Factory setting
25% VMR ***
23% VMR ***
Hno
Hno
75% VMR ***
73% VMR ***
0.0
0.0
0.0
0.0
PnP
0.06
PSI / IH2O rEd d2
VMR*
MAW**
User setting
* =
** =
*** =
Final value of the measuring range (VMR)
Initial value of the measuring range (MAW)
The indicated percentage of the final value of the measuring range (VMR) of the respective sensor in psig (for EPS25-V14-1003 the percentage of the measuring span) is set
More information at www.automationdirect.com
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