United Electric Controls ONE Series User manual

IM_1XTXSW-08
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GENERAL
MISUSE OF THIS PRODUCT MAY CAUSE EXPLOSION AND PERSONAL INJURY. THESE INSTRUCTIONS MUST BE THOROUGHLY READ AND UNDERSTOOD
BEFORE UNIT IS INSTALLED. SEE THE PRODUCT NAMEPLATE INFORMATION FOR SPECIFIC AGENCY CERTIFICATIONS APPLICABLE TO YOUR PRODUCT.
SUBSTITUTION OF COMPONENTS MAY IMPAIR SUITABILITY FOR USE IN HAZARDOUS LOCATIONS. CABLE GLANDS USED MUST BE RATED FOR A MINIMUM
OF IP66 IN ORDER TO MAINTAIN THE SAME IP RATING.
FOR ZONE HAZARDOUS LOCATIONS, ALL CABLE ENTRY DEVICES SHALL BE CERTIFIED IN TYPE OF EXPLOSION PROTECTION FLAMEPROOF ENCLOSURE “d”
WITH AN IP66 RATING, SUITABLE FOR THE CONDITIONS OF USE AND CORRECTLY INSTALLED. IF CABLES AND CABLE GLANDS ARE NOT USED, A STOPPING
BOX SHALL BE PROVIDED WITHIN 2” OF THE ENCLOSURE. FLAMEPROOF JOINT AND GAP DETAILS ARE PROVIDED ON PAGE 2.
INSTALL UNITS WHERE SHOCK, VIBRATION AND TEMPERATURE FLUCTUATIONS ARE MINIMAL. ORIENT UNIT TO PREVENT MOISTURE FROM ENTERING
ENCLOSURE. USE PROPERLY RATED SEALING FITTINGS FOR ELECTRICAL WIRE ENTRY. DO NOT MOUNT UNIT IN AMBIENT TEMPERATURES EXCEEDING
PUBLISHED LIMITS. THIS IS ESPECIALLY CRITICAL FOR LOCAL MOUNT TEMPERATURE UNITS. USE OF A SHROUD IS RECOMMENDED WHERE DIRECT SUNLIGHT
AND RAIN MAY COME IN CONTACT WITH THE ENCLOSURE.
DURING INSTALLATION, MARK THE BOX NEXT TO EACH PROTECTION METHOD ON THE NAMEPLATE THAT APPLIES TO YOUR APPLICATION.
THIS EQUIPMENT IS CERTIFIED IN ACCORDANCE WITH THE REQUIREMENTS OF THE FOLLOWING APPLICABLE STANDARDS (SEE TABLE 1) AND
IS SUITABLE FOR USE IN NON-HAZARDOUS AND THE FOLLOWING HAZARDOUS LOCATIONS, AND IS ATEX AND IECEX CERTIFIED SUITABLE FOR
APPROPRIATE USE IN GAS AND DUST ZONE 1 APPLICATIONS.
Model 1XTXSW,
1XTX00
N. America Europe International
Flameproof
Cert Number: UL File E226592 DEMKO 09 ATEX 0813748X IECEx UL 08.0017X
Applicable
Standards
UL 1203, UL 60079-0, UL 60079-1, UL 61010-1, UL
50, UL 50E, CSA C22.2 No. 25, CSA C22.2 No. 60079-
0:11, CSA C22.2 No. 60079-1:11, CSA C22.2 No.
61010-1-12, CSA C22.2 No. 94.01-07, CSA C22.2 No.
94.2-07, CSA C22.2 No. 30
EN 60079-0: 2012 + A11:2013
EN 60079-1:2014
EN 60079-31:2014
IEC 60079-0, Ed.6 (2011-06)
+ Corr.1 (2012-01) + Corr.2
(2013-12)
IEC 60079-1:Ed.7
IEC 60079-31:Ed.2
Suitable for
appropriate use in:
Class I, Div. 1, Groups A, B, C & D
Class II, Div. 1 Groups E, F & G
Class III
Class I, Zone 1 AEx db IIC T3/T5*
Ex d IIC T3/T5*
II 2 G Ex db IIC T3/T5* Gb
II 2 D Ex tb IIIC T90°C Db
IP66
-40°C ≤ TAMB ≤ +80°C
Ex db IIC T3/T5* Gb
Ex tb IIIC T90°C Db
IP66
-40°C ≤ TAMB ≤ +80°C
Non-Incendive
N. America Europe International
Cert number: UL File E226592 DEMKO 15 ATEX 1483 IECEx UL 08.0017X
Applicable
Standards
UL-60079-0, UL 60079-15, ISA 12.12.01, CSA C22.2
No. 213, CSA C22.2 No. 60079-0:11, CSA C22.2 No.
60079-15:12, CSA C22.2 No. 157-92
EN 60079-0: 2012 + A11:2013
EN 60079-15:2010
IEC 60079-0, Ed.6 (2011-06) +
Corr.1 (2012-01) + Corr.2
IEC 60079-15:Ed.4
Suitable for
appropriate use in:
Class I, Div. 2, Groups A, B, C & D
Class II, Div. 2 Groups F & G
Class III
Class I, Zone 2 AEx nA IIC T5
Ex nA IIC T5
II 3 G Ex nA IIC T4* Gc Ex nA IIC T4* Gc
*Straight pressure sensor models 10-16 and cross-over ranges 06 and 08 have a temperature class of T3, all others T5
One Series Electronic Pressure and
Temperature HART Enabled
Transmitter-Switch
Loop-Powered, Flameproof, and
Non-Incendive Models: 1XTXSW, 1XTX00
UNITED ELECTRIC
CONTROLS
Installation and Maintenance
Instructions
IM_1XTXSW-08
Please read all instructional literature carefully and thoroughly before starting. Refer to the final page for the listing of Recommended
Practices, Liabilities and Warranties. All Warnings are translated to French and can be found of pages 24 and 25.
Table 1

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FLAMEPROOF - SPECIAL CONDITIONS FOR SAFE USE
• Field wiring must be rated 105°C minimum. For ambient temperatures below -10°C, use suitable field wiring.
• Blanking elements from factory have been tested for flameproof “d” and dust “tb” with the enclosure as an assembly and carry no
markings.
• A suitable thermowell made from corrosion-resistant material and engaging 5 threads minimum (with thread sealant) is required for
the local spring loaded temperature sensor to maintain IP66
Flameproof joint and gap details
– Enclosure to cover threaded joint: 4”-16 UN-2, 7 threads engaged minimum
– Glass to cover cemented joint: 0.753” (19.1 mm) rabbet/spigot minimum length
– Breather element threaded joint: M8-1.25 (6g/6H medium fit class), 11 threads engaged minimum
– Electrical conduit threaded joint: 3/4”-14 NPT, 5 threads engaged minimum
– Enclosure to sensor threaded joint:
• Pressure models: 1”-20 UNEF-2, 10 threads engaged minimum
• Temperature models: 1/2”-14 NPT, 5 threads engaged minimum
• Remote and local spring loaded temperature sensor gap joints: 0.0045” (0.114 mm) maximum annular gap by
1.25” (31.8 mm) minimum length
• The device must be cleaned with a damp cloth to avoid static discharge.
Dual Seal Adaptor (Option M041)
• Threaded Dual Seal Adaptor Option Enclosure to One Series Enclosure: 1”-20 UNEF-2, 10 threads engaged minimum
• Breather element threaded joint: 1/4”-20 UNC-2, 10 threads engaged minimum
• Secondary Seal Housing to union housing joint: 0 .580” (14.73 mm) rabbet/spigot minimum length, maximum annular gap 0.003“
(0.08 mm)
• Sensor to union housing joint: 0 .580” (14.73 mm) rabbet/spigot minimum length, maximum gap 0.003” (0.08 mm)
• Threaded Dual Seal Adaptor option to Sensor: 1”-20 UNEF-2, 10 threads engaged minimum or 1/2”-14 NPT 5 threads engaged
minimum.
CONTINUOUS OPERATION SHOULD NOT EXCEED THE DESIGNATED OVER RANGE PRESSURE OR MAXIMUM WORKING PRESSURE
STATED WITHIN THE LITERATURE AND ON DEVICE NAMEPLATE.
Over Range Pressure: The maximum pressure to which a pressure sensor may be continuously subjected without cause damage and
maintaining set point repeatability.
Max Working Pressure: The maximum that can be applied to both process ports simultaneously without affecting sensor performance.
The One Series transmitter-switch product line is based on an all-solid-state electronic module that incorporates a microproces-
sor. The combination of features like no moving parts and IAW®self-diagnostics provide a highly reliable, accurate and repeatable
monitor for detecting pressure and temperature thresholds which once reached, can make intelligent switch decisions based upon
retained settings and current conditions. The One Series monitors its own health and reports the status locally through the IAW®
(I Am Working) feature that provides a solution to the “blind device” issue common with mechanical switches. You will always know
the health status of the One Series.
The One Series 1XTXSW and 1XTX00 models include a standard 4-20 mA output with HART®version 7 protocol for control of all
transmitter and switching functions. The IAW® self-diagnostics feature combined with the NAMUR NE 43 standard provides an addi-
tional method of remotely reporting detected faults. By monitoring the local display or either of the two fail-safe relays or the fail-
safe-open IAW®OUTPUT or the 4-20 mA signal, the One Series offers several and redundant methods of fault reporting.
The One Series is also very rugged, featuring a Type 4X, weather-tight enclosure suitable for harsh environments and hazardous
(Class I, Division 1) locations. The 0.5% accuracy rating is maintained over a very wide -40°C to +70°C operating range using
active temperature compensation. Repeatability rivals that of a process transmitter, with a 0.1% of full range while the switches set
point and deadband (hysteresis) are fully programmable over the entire range of the sensor. Reaction time for the One Series to a
process change is typically 100 mS or less.

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I Am Working (IAW™)
The One Series also contains UE’s patented IAW®self-diagnostic software. On a continuous basis, the IAW®algorithm checks for proper operation,
and locally reports the status using messages or revolving arrows on the display. For remote reporting, a discrete IAW®output signal can be
monitored by the control system and used to detect normal, tripped, and fault conditions. IAW®self-monitors, searching for possible faults, both
within the instrument and in the overall system (a list of the various fault codes is outlined in table 4, page 19). In the event of a detected fault,
the One Series will attempt to display the fault details and provide remote electrical indication by opening (turning off) the IAW®Output. In the case
of certain micro-controller faults, the revolving arrow may freeze or go out; indicating locally that a failure exists.
DISPLAY FEATURES AND DIAGNOSTICS
The One Series features a large, easy to read LCD display (See Figure 1). It is used for three main purposes: process indication, programming
and switch status/troubleshooting.
In the Process Display mode, the display may be indicating the following:
• Current process value and units of measure: A value will be displayed as long as the reading is within 110% of the full
scale range noted on the nameplate.
• I Am Working (IAW®) status: When the unit is working properly, a circular 4-segment arrow will be revolving around the letters “IAW®” in the
top center of the display.
• Offset/Span Adjustment: The word “offset” will appear above the process value, indicating that the factory offset and/or span
calibration has been modified by the user.
In addition, the user can easily access information such as the set point, deadband and minimum/maximum process readings:
By pushing the right gbutton once, the display will scroll as follows:
SP1 XX.XX DB1 XX.XX SP2 XX.XX DB2 XX.XX
By pushing the left 2button once, the display will scroll the min/max process values recorded in memory:
MAX XX.XX MIN XX.XX
The display will automatically revert back to the Process Display mode after scrolling.
ALARM CONDITION
When the process goes beyond the set point, the display will begin to flash, alternating between the process value and “SW1/SW2”. The display
will continue to flash until the process has returned to a value beyond the deadband, at which point the display will revert to normal operation and
process value display. If the unit was programmed to have a latching output, a small “Latch” icon will light in the display when the set point is
reached, indicating that the output is latched and needs to be manually reset.
FAULT CONDITIONS
In the case of a fault condition, the display may indicate the following:
If the IAW®software detects a fault outside of the micro-controller, and can still operate, it will display an error message.
If it is a failure of the power supply or the wiring, the display will go blank.
(See Fault Codes Table 4, page 19 for a complete description of fault diagnostics.)
Please refer to the product technical brochure for product specifications. Product technical brochure may be found at www.ueonline.com.
UE declarations and third party issued certifications are available for download at www.ueonline.com/support/certifications/.
Date code format on nameplate is “YYWW” for year and week (see Figure 16, Page 20)
PART I - MOUNTING
FLAMEPROOF AND NON-INCENDIVE - MOUNTING
Tools Required: Screwdriver for mounting bolts; 4 mounting bolts (1/4”Max.)
NOTE: For optional surface and pipe mounting kit, order part no. 6361-704. See page 22.
BEFORE INSTALLING, CHECK THE SENSOR MODEL SELECTED FOR COMPATIBILITY TO THE PROCESS MEDIA IN CONTACT WITH THE SENSOR
AND WETTED PARTS.
IN ALL APPLICATIONS, SECURE THE ENCLOSURE AS DETAILED BELOW. DO NOT MOUNT VIA THE PROCESS CONNECTION ONLY.
Mount the device using the four (4) 1/4” clearance holes in the enclosure base. Plumb sensor to the process port. See page 23 for dimensions.
The device may be mounted in any position except with the sensor connection facing up. Ensure the process connection is sealed to the process
port to prevent leakage. Care should be taken to minimize effects of shock and vibration. The One Series should be protected from direct sunlight
and rain in outdoor installations using a shroud (user supplied). NOTE: the optimal display viewing position is 6:00.
Figure 1

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FOR PRESSURE AND LOCAL TEMPERATURE MODELS ALWAYS HOLD A WRENCH ON THE SENSOR HOUSING HEX WHEN MOUNTING DEVICE. DO
NOT TIGHTEN BY TURNING ENCLOSURE, THIS WILL DAMAGE THE CONNECTION BETWEEN THE SENSOR AND HOUSING.
FOR DIFFERENTIAL PRESSURE MODELS (ESPECIALLY LOW RANGE MODELS), MOUNT THE SENSOR LEVEL TO MINIMIZE ANY PRESSURE
READING OFFSETS. THE OFFSET COMMAND MAY BE USED TO ZERO THE DISPLAY, (SEE PAGE 13 FOR ADDITIONAL INFORMATION).
PROCESS CONNECTIONS AND SENSOR FOR FLAMEPROOF AND NON-INCENDIVE INSTALLATIONS
NEVER INSERT ANY OBJECT INTO THE PRESSURE SENSOR OPENING. DAMAGE TO THE SENSOR WILL RESULT, AFFECTING ACCURACY.
Pressure and Differential Pressure Models
To pipe mount: Thread the pressure connection onto the pressure port, with thread sealant, making sure that the mating threads are clean and
free of debris. Use a wrench on the pressure connection hex to tighten. Test for leaks. On Differential Pressure models, the Low (L) side pressure
must NOT exceed the high (H) side pressure. Damage to the sensor may result.
Local and Remote Temperature Models
For Local Ambient Sensing (model L): Mount using the mounting holes on the electronics housing. Mount the device to ensure that the sensor
housing will not be damaged and where the measured temperature is representative of the surrounding environment.
For Local Spring-Loaded (model T): A suitable thermowell, made from corrosion-resistant material, 5 threads engaged minimum, with thread
sealant, is required to maintain enclosure type 4X/IP66.
For Remote Sensing: Route the extension wire to avoid contact with live components or close proximity to electrical noise sources. Avoid kinks, or
excessive flexing. Tighten the ferrule fitting, if applicable.
For Surface Sensing: Secure the sensor housing to the pipe or vessel using an adhesive or strapping method suitable for the application.
For Immersion Sensing (models C, H, R & L): Use of a thermowell is highly recommended to aid in maintenance, testing and preservation of the
system integrity. Insert the sensor housing (0.25”diameter) into the well ensuring that the sensor’s sheath bottoms out and the well is completely
immersed in the media (2.5”min.) Screw the sensor’s nipple into the thermowell, with thread sealant, by placing a wrench on the union nut. Tighten
the union connector.
For best temperature measurements, the sensor housing must be in full contact with the surface or media being measured. Heat transfer compound
may be used to aid in fully transferring the media temperature to the sensor housing. Locate where the temperature is most representative of the
system. Minimum insertion depth is 2-1/2”. Sensor dimensional drawings are shown on page 23.

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PART II - WIRING
Removing the One Series Enclosure Cover and Display Module
TO PREVENT ELECTROSTATIC DISCHARGE WIPE DOWN COVER AND ENCLOSURE OF ANY DUST BUILD-UP BEFORE REMOVING COVER.
DISCONNECT ALL SUPPLY CIRCUITS BEFORE WIRING DEVICE. WIRE DEVICE IN ACCORDANCE WITH LOCAL AND
NATIONAL ELECTRICAL CODES. MAXIMUM RECOMMENDED WIRE SIZE AND RECOMMENDED TIGHTENING
TORQUE FOR FIELD WIRING TERMINAL BLOCKS ARE SHOWN WITHIN TABLE 2 (PAGE 5).
TO PREVENT SEIZURE OF ENCLOSURE COVER, DO NOT REMOVE LUBRICANT. THREADS SHOULD ALSO BE FREE OF DIRT
AND OTHER CONTAMINANTS.
Remove the enclosure cover by turning it counter-clockwise for 7 revolutions (Figure 2). Carefully remove the display
module by grasping the outer edge and pulling it away from the base enclosure (Figure 3), being careful not to
strain any of the wired connections. Allow the display module to hang from the wired connections to access the base
enclosure and terminal blocks for wiring. Do not remove the display module wire assemblies. Insert the field wiring
through the conduit opening(s) of the base enclosure. Make the connections as shown within the wiring diagrams
(Figure 4-5, page 6). The primary chassis and equipment grounding terminal is provided inside the
base enclosure.
Cleaning the display and keypad surface should be performed with a damp cloth only. Do not attempt to wash down
the One Series with the cover removed.
WIRING FOR FLAMEPROOF & NON-INCENDIVE INSTALLATIONS
Tools Required: Small flat-head screwdriver; wire strippers
TO PREVENT IGNITION, DISCONNECT POWER BEFORE REMOVING ENCLOSURE COVER. KEEP COVER TIGHT WHILE IN OPERATION. DO NOT
DISCONNECT EQUIPMENT UNLESS POWER HAS BEEN SWITCHED OFF OR THE AREA IS KNOWN TO BE NON-HAZARDOUS.
DO NOT REPLACE COMPONENTS UNLESS POWER HAS BEEN SWITCHED OFF OR THE AREA IS KNOWN TO BE NON-HAZARDOUS.
THE DEVICES SHALL BE PROPERLY GROUNDED IN THE END USE APPLICATION USING THE GROUND SCREWS PROVIDED WITH THE
ENCLOSURE.
FIELD WIRING MUST BE RATED 105°C MINIMUM. FOR AMBIENT TEMPERATURES BELOW -10°C, USE SUITABLE FIELD WIRING.
Terminal Block and Torque Details
Description Max. Wire Gauge Min. Wire Gauge Recommended Tightening Torque
TB1 3-Position 14 AWG 22 AWG 3.48 in-lbs. or 0.39 Nm
TB2* 4-Position 14 AWG 26 AWG 4.4 in-lbs. or .50 Nm
TB3* 2-Position 14 AWG 26 AWG 4.4 in-lbs. or .50 Nm
NOTE: The sensor’s 4-conductor ribbon cable assembly must remain connected to the display module with the red wire oriented to the arrow on
the label at the rear of the module. Reversing this connector will result in measurement errors or failure. Please refer to the wiring diagrams
beginning on page 6.
*Model 1XTXSW only
Figure 2
Figure 3
Table 2

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The One Series enclosure includes two conduit openings, one intended for the
high-power switch wiring and the other intended for low-level signal and analog
4-20 mA wiring. 4-20 mA signals shall be wired using a shielded/twisted pair to
minimize the effects of electrical interference. Please follow local electrical code
requirements for explosion/flame proof instrumentation.
Figures 4, 6, & 7 provide a rear view of the display module after it has been
removed from the base enclosure and an inside view of the base enclosure cir-
cuit boards. Terminal Block 1 (TB1) is located on the display module. Terminal
blocks TB2 & TB3 are located inside the base enclosure.*
Models 1XTXSW and 1XTX00 are loop-powered and are normally connected
directly to an analog input of a PLC or DCS via TB1 providing a 4-20 mA analog
signal, repeating the pressure or temperature process variable (see Figure 6,
Page 7). Polarity must be observed. This loop connection powers the entire
One Series, including the actuation of both solid-state relays (SW1 & SW2) and
the IAW®OUTPUT signal. The bi-directional relays are connected via TB2 and
are intended to switch external loads. IAW®OUTPUT is a discrete signal for
providing health status to a control system and is connected via TB3 and polar-
ity must be observed. Connections to the relays and the health status signal are
optional (not required).*
NOTE: As an alternative to loop power, model 1XTXSW may be wired directly to
a 24 VDC power supply (+) and minus (-) terminals (see Figure 7, Page 7). In
this wiring configuration, power is provided for all switching and diagnostic func-
tions but the 4-20 mA analog output is not used. The digital display will provide
the process variable. This alternative method of powering the One Series may
be used when loop power is not available and a 4-20 mA output is not desired.
An additional discrete signal is available at TB3-1 & TB3-2. IAW®OUTPUT is
intended for monitoring the health status of the One Series by connecting it
to a logic solver input. This output may also be used to distinguish between
a process upset (set point reached) or the IAW™ self-diagnostics detecting
a fault. IAW®OUTPUT is normally-closed and opens if a fault is detected or if
power fails.*
NOTE: Do not exceed the maximum switch ratings of the SW1, SW2, or IAW™
Output and signals or permanent damage to the One Series may result. Please
refer to Table 3 below.
TB 2
+
TB3
TB 2
TB2
3
3
SW1
SW2
TB3
+
TB3
+
-
RED
TB1
Maximum Switch Ratings
Signal Name Location Voltage Ratings Current Ratings
SW1 TB2 (no polarity) 0 – 280 VAC and VDC 0.3 amperes1
SW2 TB2 (no polarity) 0 – 280 VAC and VDC 0.3 amperes1
IAW®OUTPUT TB3-2 (+) & TB3-1 (-) 0 – 30 VDC 0.020 amperes
1Derate 8% per 10 °C above 21°C
*Model 1XTXSW Only
WIRING DIAGRAMS
**
Figure 4
Figure 5
Table 3

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The One Series may be powered from the analog loop current power
supply (like most transmitters) using only 2 wires. This configuration
provides a digital displaying 4-20 mA output transmitter. The process
variable and diagnostic information is available on the display. All
device functions, including SW1, SW2 and IAW®OUTPUT are powered
by the loop current power supply and require additional wiring, if used.
Refer to the Wiring example (see Figure 8) for more information.
The One Series may also be powered by direct connection to a 20 – 40
VDC power supply. All device functions, including SW1, SW2 and IAW™
OUTPUT are powered. In this configuration, the analog 4-20 mA output
is disabled. Refer to the Wiring example (see Figure 8) for additional
wiring methods.
NOTE: A series resistor is required for supply voltages above 24 VDC.
See Table 4 on page 9.
+
-
RED
TB1
Logic Solver
Analog Inputs
Ain1+
24 VDC Loop
Power
+
-
RED
TB1
Power Supply
24 VDC
+
PowerOptions
+
TB 2
+
TB3
TB 2
TB2
3
3
SW1
SW2
TB3
Logic Solver
Discrete Inputs
Din1+
Din2+
Din3+
Din4+
Din5+
Din6+
DC Common
+24 VDC
0.3 A max.
TB3
This diagram provides an example wiring scheme for SW1, SW2
and IAW®OUTPUT switches.
• SW1 is connected to an external load, providing a means
to switch a local device (e.g., lamp, horn, etc.) to provide a
warning that the high limit set point has been reached.
• SW2 is connected to a logic solver discrete input (Din6) for
remote monitoring of the high-high set point to initiate a
shutdown.
• IAW®OUTPUT is connected to logic solver discrete input
(Din1) for remote monitoring of the One Series diagnostics.
This normally-closed switch will open if a fault is detected.
NOTE: All switches in this wiring example are connected to DC
Common but can be separated to maintain power supply isola-
tion. SW1 and SW2 are independently configurable for open,
close and window modes on rising or falling media. Wiring con-
nections to these switches is optional.
*Model 1XTXSW Only
Wiring Example*
Figure 6
Figure 7
Figure 8

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HART®WIRING AND OPERATION
No separate wiring is required for digital communication with HART®devices since the HART®FSK (Frequency Shift Keying) signal is superimposed
on top of the 4-20 mA output signal. Digital data is sent to and from the One Series via a HART®communicator while real-time process informa-
tion is available via the 4-20 mA signal. A twisted pair or shielded wire cable is recommended where extended lengths are required or electrical
noise may be present.
For Bench Testing, connect the One Series to a power supply and a load resistor (see Figure 10). A voltmeter across the 250 Ω resistor can be
used to measure the current in the loop ( Iloop = Vresistor / 250 ). At 4 mA the voltmeter will read 1 volt and at 20 mA the meter will read 5
volts.
For Field Operation, the One Series can be connected to any HART®compatible input card, module or, if the HART®interface is not being used,
any standard 4-20mA input (see Figure 9). In most cases the power supply and the load resistor are built into the input card or module, allowing
direct connect with no external load resistor.
NOTE: Before attempting to change the polling address, UE recommends installing the One Series device descriptions (DDs) on your handheld or
software application. Installation instructions for Device Descriptions (DD) as well as DD files may be found at www.ueonline.com/products/hazard-
ous-location/one-series/ under HART®Protocol Resources. Once the DDs have been properly installed, the One Series can be fully accessed and
is ready to receive the Universal, Common Practice and Device Specific commands that can be found within table 5, page 17-18 of this manual.
By default, the polling address of the One Series 1XTX is set to “0”. To be accessible through a HART® network with multiple HART®devices, the
One Series must be in multi-drop mode by setting the polling address to a number other than “0”. The polling address can be changed by using
a HART®Handheld Communicator or HART®modem and software to any value between 1 and 63. Choose an address that is not being used by
another device in the HART®network.
Input
Card/Module
One
Series
One
Series1
One
Series2
One
Series15
TB1+
TB1-
TB1+
TB1-
TB1+
TB1-
TB1+
TB1-
Power
Supply
One
Series
TB1+
TB1-
+
-
+
-
+
-250 Ω
1-5 VDC
HART®
Comm
Field Operation
Multi-Drop Mode
Bench Testing
…
Input
Card/Module
Figure 9
Figure 10

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0
200
400
600
800
1000
1200
18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
R
series
V
supply
Power Supply and Load Limits
Rmin
Rmax
Vin Rmin Rmax
20 0.0 181.8
21 0.0 227.3
22 0.0 272.7
23 0.0 318.2
24 0.0 363.6
25 47.6 409.1
26 95.2 454.5
27 142.9 500.0
28 190.5 545.5
29 238.1 590.9
30 285.7 636.4
ONE SERIES 4-20mA POWER SUPPLY AND LOAD LIMITS
Vin Rmin Rmax
31 333.3 681.8
32 381.0 727.3
33 428.6 772.7
34 476.2 818.2
35 523.8 863.6
36 571.4 909.1
37 619.0 945.5
38 666.7 1000.0
39 714.3 1045.5
40 761.9 1090.9
No Fault Displayed
4-20 mA Normal Operating range Unused
Fault < 3.6
3.8 mA Normal
Under-range
420
20.5 mA Normal
Over-range
21.0 mA*
*21.0 mA only when the temperature
sensor is subject to 103.25% to 110%
of range or when the pressure sensor
is subject to 103.25% to 150% of
range.
Fault
0
FAULT CURRENT
A diagnostic fault will force the IAW®Output to the fail safe state and the SW1 and SW2 relays to the as-configured tripped state. In addition to the
discrete outputs, the One Series includes a NAMUR NE 43 standard 4-20 mA output that outputs ≤ 3.6 mA in a fault condition.
Table 4
Graph 1
Figure 11

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PART III - PROGRAMMING
Basic Programming
Tools Required: Programming Flowchart (see Flowchart 1, page 21)
Programming of the One Series is accomplished using the two buttons on the faceplate (labeled 2and gsee Figure 12). Stepping
down through the main menu using the left 2button, you can access the various commands of the One Series software menu. The right
button is then used to move into the command submenu for setting up or modifying the parameters.
NOTE: The flowchart on page 21 shows the enitre programming commands menu structure. Before removing the enclosure cover,
please read the instructions on page 5. The One Series programming menu is a single direction lop, with submenus embedded within,
so there is no way to back up in the program. If you need to make a correction to a prior Main Menu step, you will need to continue
forward, exit, then re-enter the program to step through to the appropriate feature. If you are in a Submenu, you will need to continue
to the beginning of the menu item and re-enter the Submenu to make the correction.
Entering the Programming Mode
NOTE: While in the Programming Mode, the One Series will remove itself from service (go offline). All outputs are set to the fail safe
state and the One Series ignores process variable input from the process sensor. The IAW®Output signal will open. The switch output
failsafe state will be based on the programmed operating mode of the switch. For example, the failsafe state for “Open on” modes is
open. The control system will interpret these signals as a detected fault and a process upset (set point reached) simultaneously. It is
essential to alert the control system operators before entering the Programming Mode.
Use the Flowchart on page 21 as a guide through the various commands in the Programming Mode.
• Press and release both buttons 2g simultaneously and then press the right button gto enter the password.
• Enter the 4-digit password. The factory defualt password is “0000”.
• The left 2button increments the blinking digit.
• The right gbutton sets the digit and moves to the next.
• Once a valid password is entered, “OK” will appear on the display.
• Press and release the right gbutton.
• CLR MAX/MIN (or MAN RSET if Latch is set) will appear on the display.
This is the first command prompt in the Programming Mode.
NOTE: The One Series will automatically exit the Programming Mode and resume monitoring the process (go back online) if two minutes
elapse without a button being pressed. The One Series recalls all previously saved parameters from memory and any program changes
that were made will be discarded. This two-minute timeout feature prevents the One Series from being left offline accidentally.
Exiting the Programming Mode
When any of the programming commands are displayed, it is possible to escape and exit the Programming Mode by pressing the left
2and right gbutton simultaneously. Doing this redirects the program to the Save Changes menu location, which is only possible at
menu actions indicated by an asterisk (*) on the Programming Flowchart, found on page 21.
NOTE: It is also possible to exit the Programming Mode by repeatedly pressing the left 2button from any programming command until
the Save Changes menu location is reached.
Saving Programming Changes
When changes have been made to the programming settings, a choice is provided to Save or Discard the changes. At any prompt:
• Press both left 2and right gbuttons to display SAVE CHNG menu.
To Save changes, press the right gbutton. NO (the default) will be displayed.
• Press the left 2button to toggle and display YES.
• Then press both left 2and right gbuttons to confirm, save the changes and return to the Process Display mode.
The One Series will resume process monitoring (go back online) using the new programming parameters.
To Discard changes, press the right gbutton. NO will be displayed.
• Press both left 2and right gbuttons to confirm, discard changes and return to the Process Display mode.
The One Series will resume monitoring the process (go back online) recalling all previously saved parameters from memory.
Figure 12

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BASIC FEATURES
Setting the Units of Measure
The One Series allows the units of measure to be set in the field. The default units are pounds per square inch (PSI) for pressure models
and degrees Fahrenheit (˚F) for temperature models.
• To change the units of measure, enter the programming mode. Press the left 2button. The display will scroll SET UNITS.
• Press the right gbutton and the display will read the default units psi or˚F.
• Repeatedly press and release the left 2button to select from the available choices. Stop at the desired choice.
• Press the right gbutton to make the selection. The display will return to “Set Units.”
• Press the left 2button to continue on in the menu or press both left 2and right gbuttons to exit the Programming Mode and
save changes.
NOTE: MAX/MIN memory is reset (changed to zero) whenever the units of measure have been changed. Set Point, Deadband, Offset,
Span and Plug Port values are recalculated for the newly selected units of measure.
Setting the Switch Mode, Set Point and Deadband for SW1 and SW2 (1XTXSW Only)
Please refer to the Programming Flowchart, page 21. Repeat these steps for SW2.
• Enter the programming mode (see page 10).
• Press and release the left 2 button until SW1 appears on the display.
• Press the right g button. The previously selected mode will appear. OPEN RISE is the factory default.
NOTE: The One Series has six available modes of operation
OPEN RISE - Switch opens on rising process values that exceed the set point.
OPEN FALL - Switch opens on falling process values that drop below the set point
OPEN WINDOW - Switch opens when process values go outside configured limits specified by set point high and set point low.
CLOSE RISE - Switch closes on rising process values that exceed the set point.
CLOSE FALL - Switch closes on falling process values that drop below the set point.
CLOSE WINDOW - Switch closes when process values go outside configured limits specified by set point high and set point low.
Please use the Switch Decision Logic (Figure 13, page 12) for help with setting the appropriate switch mode.
• Press and release the left 2button until the desired mode appears.
• Press the right gbutton to select the mode and move on to the set point. SP will appear.
NOTE: The set point is the process value at which the One Series opens or closes the SW1 and SW2 switch. The Set Point is fully programmable
throughout the operating range of the sensor as noted on the device nameplate.
• Press the right gbutton to select a positive or negative set point. POS is the default. Use the left 2button to change to NEG.
• Press the right gbutton to view and change the set point. Press the left 2button to increment the blinking digit. Press the right
gbutton to enter and move to the next digit.
• Press the right gbutton to enter a new Deadband. DB will show on the display.
NOTE: The Deadband is the amount above or below the set point at which the One Series resets the SW1 and SW2 switch, returning it to
the normally closed or open state. Deadband is represented as a value which is added or subtracted from set point, depending on the
control mode.
• Example 1: If the Control Mode is OPEN RISE and the set point is 100 and the deadband is 10, the Switch will open as pressure rises
to 100 and close (reset) as the pressure falls to 90.
• Example 2: If the Control Mode is CLOSE RISE and the set point is 100 and the deadband is 10, the Switch will close as pressure rises
to 100 and open (reset) as the pressure falls to 90.
• Example 3: If the Control Mode is OPEN FALL and the set point is 100 psi and the deadband is 10, the Switch will open as pressure
falls to 100 psi and close (reset) as pressure rises to 110 psi.
• Example 4: If the Control Mode is CLOSE FALL and the set point is 100 psi and the deadband is 10, the Switch will close as pres-
sure falls to 100 psi and open (reset) as pressure rises to 110 psi.
NOTE: Deadband should be set wide enough so that frequent or rapid switch cycling (chatter) does not occur but narrow enough to satisfy
the process conditions. A Deadband value of zero is undefined and, therefore, not permitted.

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• Press the right gbutton to view and change deadband. Press the left 2button to increment the blinking digit. Press the right g
button to enter and move to the next digit.
• Press the right gbutton to enter a new Deadband. SW1 will show on the display.
NOTE: The Set Point and Deadband settings are subject to the accuracy of the instrument. Actual switch points may vary up to +0.5%
of the sensor’s maximum range at room temperature. Example: The P15 sensor has a range of 0 to 300 psi. When setting a Set Point
of 150, the actual switch point may occur between 148.5 and 151.5 due to the accuracy error of +1.5 (300 x 0.5%).
Switch Decision Logic
Open
Closed Closed
Open
Closed Closed
SP
DB
SP
DB
Open Open
Closed Closed Closed
DBH
DBL
SPH
SPL
Open on Rise
Open on Fall
Window
Open Open
OpenOpen
Closed
Closed
Close on Fall
Close on Rise
Switch Mode
Open Closed Closed Open Open
Open Window
Close Window
Figure 13
Resetting the Maximum & Minimum Values
The One Series continuously captures the readings from the sensor and stores one minimum and maximum value since the last time they were
reset. The values can be viewed at any time by removing the enclosure cover and pushing the left 2button. The display will scroll the values and
then return to the Process Display mode.
To reset the values, enter the Programming Mode (see page 10). Repeatedly press the left 2button to get to the CLR MAX/MIN command and then
press the right gbutton two times. After exiting the Programming Mode and saving the changes (see page 10), the values will be reset to the
current reading and begin recording again.

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ADVANCED FEATURES
NOTE: No initial configuration of these features is required. The default for these advanced commands is zero or off.
Adjusting Display Offset
The One Series is factory calibrated to 0.25% of the sensor’s maximum range at room temperature. In some installations, it may be
necessary to adjust the display’s offset due to the range and position of the sensor. Chemical seals with long capillaries combined with
low maximum range sensors are a common cause of offset error. The OFFSET command allows the user to enter a positive (“POS”) or
negative (“NEG”) offset to the display readings. An offset adjustment of up to +10% of the sensor’s maximum range is allowed.
Example: When the sensor has a zero pressure applied, but the display reads a value other than zero, entering the additive inverse
(reversing the sign) of the displayed value for OFFSET will force the display to read zero.
NOTE: Any numerical value entered other than 0.00 will cause the display to indicate “Offset” just above the process reading in the
process display.
USE OF THIS OPTION MAY CREATE A CONDITION WHERE THE DISPLAY MAY INDICATE “0.00” WHEN SIGNIFICANT PRESSURE OR
TEMPERATURE (UP TO 10% OF MAXIMUM RANGE) EXISTS IN THE SYSTEM. INDEPENDENT VERIFICATION OF THE PROCESS VARI-
ABLE SHOULD BE DONE PRIOR TO MAINTENANCE ON THE SYSTEM WHEN “OFFSET” APPEARS ON THE DISPLAY.
Refer to the Programming Flowchart on page 21.
• Enter the Programming Mode and use the left 2button to move to the OFST command.
• Press the right gbutton to select a positive or negative offset. POS is default. Use the left 2button to change to NEG.
• Press the right gbutton to view and change the offset. Zero is the factory setting. Press the left 2button to increment the blink-
ing digit. Press the right gbutton to enter and move to the next digit.
• Press the right gbutton to enter the new offset and return to the main menu.
Adjusting Span
SPAN provides an adjustment to shift the slope of the sensor’s response curve to accommodate an offset value other than zero. To
adjust SPAN, calculate and enter a new SPAN value.
To calculate the SPAN value, apply a reference source below maximum scale to the sensor. Record the value that shows on the One
Series display and the reference source value. Divide the reference source value by the display value and then multiply the result by the
sensor’s upper range.
FORMULA: SPAN = reference source / display value x upper range value
• Pressure example: For a sensor range of 0 - 100 psi, choose a reference source (90) below the upper range limit (100) to
prevent an over range condition. Divide the reference source value from the resulting display value (88). Multiply the result by the
upper range limit. Span = 90 / 88 x 100 = 102 (rounded)
• Temperature example: For a sensor range of -40 to 450ºF, choose a reference source (400) below the upper range limit (450) to
prevent an over range condition. Divide the reference source value from the resulting display value (404). Multiply the result by
the upper range limit. Span = 400 / 404 x 450 = 446 (rounded)
Refer to the Programming Flowchart on page 21.
• Enter the Programming Mode (see page 10) and use the left 2button to move to the SPAN command.
• Press the right gbutton to select a positive or negative span. POS is the default. Use the left 2button to change to NEG.
• Press the right gbutton to view and change the span. Zero is the factory setting. Press the left 2button to increment the blink-
ing digit. Press the right gbutton to enter and move to the next digit.
• Press the right gbutton to enter the new span and return to the main menu.

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NOTE: To return to factory calibration settings, enter all zeros for both SPAN and OFST.
Setting the Latch Mode (Manual Reset) (Model 1XTXSW Only)
SW1 and SW2 can be configured to latch when the set point is reached. Refer to the Programming Flowchart on page 21.
• LCH1: In the Programming Mode, press the right gbutton. Repeat these steps for LCH2
• If OFF is displayed, press the left 2button to set LCH1 to ON.
• Press the right gbutton to set the latch. When latch mode is on (set), the Switch changes state when the set point is crossed and
remains latched until the Switch is manually reset by the user or the One Series is power cycled.
When latched, the display will read MAN RSET.
To Reset the Latch
• Enter the Programming Mode (see page 10). If the Latch is set, the display will read MAN RSET. To return to the Process Display
without resetting the latch, press the right gbutton.
• To continue programming without resetting the latch, press the left 2button.
• Press both 2g buttons to reset the latch. The display now reads RSET DONE.
• Press the right gbutton to return to the Process Display.
• Press the left 2button to continue Programming.
Setting the Plugged Port Feature
The One Series IAW®self-diagnostics have the ability to detect that the process port may be plugged. It does this by monitoring the
sensor for changes over time. The amount of change and the time period are configurable. If the process variable does not change
by the amount and selected time period, the display will indicate PLUG and the IAW®Output will open, indicating a fault. Refer to the
Programming Flowchart on page 21.
• Enter the Programming Mode and press the left 2button until PLUG PORT is scrolling on display. Press the right gbutton.
• There are four possible selections -
• OFF - This disables the plugged port function and is the default setting. This should be done where sensor plugging is
not a concern or where the system pressures may not change over time (example: a storage tank).
• 1 minute
• 1 Hour Maximum time with no process variation before fault indication
• 24 Hours
• Using the left 2button, select a time.
• If OFF is selected, press the right gbutton to return to the PLUG PORT command and leave Plug Port deactivated.
• Press the right gbutton to enter a process value < 10% of the sensor’s maximum range. This number represents the minimum
variation expected in the process value over the time period entered above under normal operating conditions. Each time the
process value reaches this value, the Plug Port timer is reset.
NOTE: This value can be accurately determined by subtracting the minimum from the maximum process value as recorded by the MAX/
MIN feature. See RESETTING MAXIMUM AND MINIMUM VALUES on page 12 for additional information.
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Resetting Trip Count (Model 1XTXSW Only)
Trip Count provides information that may be useful for troubleshooting a process. Each time the set point is reached, the trip count is
incremented by 1, up to 9999, where it will automatically return to 1. Trip Count is always on and can be manually reset to zero at any
time by following these steps.
Refer to the Programming Flowchart on page 21.
• Enter the Programming Mode (see page 10)
• Press and release the left 2button until RESET TRIP CNT1 appears on the display. Repeat these steps for RESET TRIP CNT2.
• Press the right gbutton. The recorded value of times the set point was reached (the trip count) will appear on the display.
• Press the right gbutton to clear (reset) the trip count to zero.
• Press the left 2button to retain the trip count value without resetting.
Setting the Filter
In some applications, it is desirable to “dampen” the switch response and prevent intermittent false trips due to pressure spikes or other
transient/isolated events. The Filter feature provides a software digital filter with a configuration time constant for suppressing certain
transient short-duration events.
Refer to the Programming Flowchart on page xx
• Enter the Programming Mode (see page xx) and move through the commands until FILTER is scrolling on the display. Press the right
gbutton.
• The available selections are as follows
Pressure Models: OFF (Default) Temperature Models: 1/2 second
1/4 second 1 second
1/2 second 2 seconds
1 second
2 seconds
• Using the left 2button, select a time constant.
• Press the right gbutton to enter the time constant and return to main menu.
NOTE: The One Series typically responds to a process value change in less that 100 milliseconds when the Filter is set to off. Using this
feature can lengthen the overall response time of the One Series for certain types of process value changes (pressure spikes).
• A shorter delay setting provides a faster response but is less stable.
• A longer delay setting provides a slower response and is more stable.
Setting the Trip Delay (Model 1XTXSW Only)
The Trip Delay provides a configurable delay for SW1 and SW2 with a range of 0 – 999.9 seconds. Zero seconds is the factory default.
When the set point is reached, the switch trip will be delayed by the number of seconds entered into the Trip Delay command using the
following steps.
Refer to the Programming Flowchart on page 21.
• Enter the Programming Mode (see page 10)
• Press and release the left 2button until TRIP DELAY1 scrolls on the display. Repeat these steps for TRIP DELAY2.
• Press the right gbutton. OFF will appear on the display.
• Press the left 2button to select ON. The Trip Delay value in seconds (default = 000.0) will appear on the display with the left digit
blinking.
• Press the left 2button to increment the blinking digit.
• Press the right gbutton to move to the next digit.
• Press the right gbutton to enter the new Trip Delay value.

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NOTE: Do not replace the One Series display module or pres-
sure sensor. Swapping these amongst devices will cause a
mis-match between the stored sensor calibration data and the
pressure sensor. For proper operation, the display module
serial number must always match the serial number inside the
enclosure (see Figure 15).
These serial numbers must match for proper operation.
DISPLAY MODULE CALIBRATION
SETTING THE SCALE
The 4-20 mA output is field scalable. The default setting is 100% of the sensor’s maximum range, where 4 mA represents minimum and 20 mA
is maximum range. If desired, both the 4 mA and 20 mA levels may be set independently to shrink or stretch the portion of the sensor’s range
represented by the 4-20 mA output.
• Setting the 4 mA portion of the scale (see Figure 14):
• Enter the Programming Mode (see page 10) and use the left 2button to move to the 4MA SET command.
• Press the right gbutton to select a positive or negative scale. POS is the default. Use the left 2button to change to NEG.
• Press the right gbutton to view and change the scale. Press the left 2button to increment the blinking digit. Press the right g
button to enter and move to the next digit. This process value must be between -3% and 25% of the sensor’s maximum range.
• Press the right gbutton to enter the new scale and return to the main menu.
• Setting the 20 mA portion of the scale (see Figure 14):
• Enter the Programming Mode (see page 10) and use the left 2button to move the 20MA SET command.
• Press the right gbutton to select a positive or negative scale. POS is the default. Use the left 2button to change to NEG.
• Press the right gbutton to view and change the scale. Press the left 2button to increment the blinking digit. Press the right g
button to enter and move to the next digit. This process value must be between 50% and 110% of the sensor’s maximum range.
• Press the right gbutton to enter the new scale and return to the main menu.
NOTE: Scaling the 4-20 mA output over a smaller portion of the sensor’s range does not the increase the accuracy of the proportional output. A
2:1 turndown is possible using these commands.
Sensor Range
-3 to 25% 50 to 110%
4MA 20MA
0% 100%
Figure 14
Figure 15

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HART®Commands:
All of the configurable features of the One Series that were detailed in the previous pages can be performed using a HART®version 7 compatible
communicator such as those manufactured by Yokogawa, Meriam and Emerson. The One Series 1XTXSW and 1XTX00 provide the latest available
HART®version 7 and include a Device Description (DD) that enables device specific commands for access to and setting the transmitter relay
(model 1XTXSW only) parameters.
Below (see Table 5) is the list of the HART®commands implemented. Details of Universal and Common Practice Commands may be found in the
Universal Command Specification (HCF_SPEC-127) and Common Practice Command Specification (HCF_SPEC-151) published by the HART Com-
munications Foundation, now part of the FieldComm Group. http://en.hartcomm.org/
Details of the One Series device specific commands and the device description file may be found on United Electric Controls website:
https://www.ueonline.com/products/hazardous-location/one-series/ under HART®Protocol Resources.
Command Descripon Type
0 Read Device ID Universal
1 Read Primary Variable Universal
2 Read Loop Current and Percentage of Range Universal
3 Read Dynamic Variables and Loop Current Universal
6 Write Polling Address Universal
7Read Loop Conguraon Universal
8Read Dynamic Variable Classicaons Universal
9 Read Device Variables with Status Universal
11 Read Unique Idener Associated with Tag Universal
12 Read Message Universal
13 Read Tag, Descriptor, Date Universal
14 Read Primary Variable Transducer Informaon Universal
15 Read Device Informaon Universal
16 Read Final Assembly Number Universal
17 Write Message Universal
18 Write Tag, Descriptor, Date Universal
19 Write Final Assembly Number Universal
20 Read Long Tag Universal
21 Read Unique Idener Associated with Long Tag Universal
22 Write Long Tag Universal
38 Reset Conguraon Changed Flag Universal
48 Read Addional Device Status Universal
33 Read Device Variables Common Pracce
34 Write Primary Variable Damping Value Common Pracce
35 Write Primary Variable Range Values
Data wrien using command 35 will update the 4mA and 20mA sengs in
the menu.
Common Pracce
36 Set Primary Variable Upper Range Value Common Pracce
37 Set Primary Variable Lower Range Value Common Pracce
40 Enter/Exit Fixed Current Mode Common Pracce
41 Perform Self Test Common Pracce
44 Write Primary Variable Units Common Pracce
45 Trim Loop Current Zero Common Pracce
46 Trim Loop Current Gain Common Pracce
47 Write Primary Variable Transfer Funcon Common Pracce
54 Read Device Variable Informaon Common Pracce

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HART Commands Cont.
Command Descripon Type
59 Write Number of Response Preambles Common Pracce
71 Lock Device Common Pracce
76 Read Lock Device State Common Pracce
140 Write Field Stats Informaon
Overwrites the Max and Min values from the device.
Device Specic
141 Read Field Stats Informaon
Reads the current Max and Min values from the device.
Device Specic
221 Write Protect Enable/Disable, Modify Password
Allows write protect mode to be enabled/disabled and allows eding of the
device password.
Device Specic
222 Read, Write Protect Status
Reads the write protect status of the device.
Device Specic
223 Write Trip Counters
Writes an unsigned 16-bit integer between 0 – 9999 to the trip counters associ-
ated with switch 1 and switch 2 (Trips 1 and 2).
Device Specic
224 Trips 1 and 2
Reads the value of the trip counters associated with switch 1 and switch 2 (Trips 1
and 2). The number is an unsigned 16-bit integer between 0 – 9999.
Device Specic
225 Manual Reset
Resets one or more switches that are in the latched state.
Device Specic
226 Read Switch Latch Status
Reads the latch status of one or more switches.
Device Specic
244 Write Switch Conguraon
Write Switch Number, Mode, Set Points, Deadbands, Latch Sengs, Trip Delay
Sengs
Device Specic
245 Read Switch Conguraon
Read Switch Number, Mode, Set Points, Deadbands, Latch Sengs, Trip Delay
Sengs
Device Specic
246 Write Plugged Port Sengs
Enable/Disable Plugged Port Feature, set plugged port me and threshold.
Device Specic
247 Read Plugged Port Sengs
Read Plugged Port me and threshold.
Device Specic
248 Write Oset and Span
Writes oset and span values for the purpose of calibraon to the oset and
span menu entries.
Device Specic
249 Read Oset and Span
Reads oset and span values from the device.
Device Specic
Table 5

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The One Series IAW® diagnostics are capable of detecting many possible fault conditions. Some fault conditions will clear automatically when
the parameter returns to normal; others require the device to be powered down and restarted; and some may require repair or replacement.
A list of fault conditions are shown below in table 6.
If a fault message appears on the One Series display, a fault code can be obtained by pressing both keypad buttons 2g simultaneously.
Please provide this code if calling UE Inside Sales for assistance.
ONE SERIES FAULT CODES
Code Probable Cause Reason Action
E- 04 Loop Current Fault The current measured in the 4-20mA loop, by the fault monitoring
circuitry, is incorrect.
Verify that the power supply voltage
and load resistance on the 4-20mA
loop are within allowable limits.
E- 15 Diagnostic Fault Sensor OPEN An open circuit has been detected on the sensor drive pins 2 & 3. Diagnostic Fault Sensor open, check
all sensor connections.
E- 16 Diagnostic Fault Sensor SHORT A short circuit has been detected on the sensor drive pins 2 & 3. Diagnostic Fault Sensor Short, check
all sensor connections.
E- 18 Diagnostic Fault Relay Monitor The relay output fault monitor circuit has detected that the output
state of the solid state relay is incorrect. This feature must be
enabled in the menu.
Check the wiring connections or dis-
able feature if not being used.
E- 65 Error -- switch output The switch output fault monitor circuit has detected that the switch
output state is incorrect.
Internal Hardware Fault, contact
factory
E- 88 Error -- Process Variable Extreme
Overrange
Extreme overrange, a pressure input has exceeded 150% of the op-
erating range or a temperature input has exceeded 110% of range.
Warning: This fault may indicate
damage to the sensor. Check that
the process is within the operating
limits of the device. Verify all sensor
connections.
NOTE: Power cycling the One Series will reset some faults. If the fault remains after power cycling, please contact UE Inside Sales at
[email protected] or call [phone]. Some fault codes not noted above indicate microprocessor faults.
Table 6

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TROUBLESHOOTING*
The relays and switches contained in the One Series are electronic. The on/off switch signal is produced by a transistor or a solid-state relay,
depending on the One Series model. Electronic switches cannot be properly tested with an ohmmeter. Instead, measure the voltage drop across
the switch connected to the intended load to determine if it is open or closed. A properly functioning One Series electronic switch will exhibit the
following voltage levels (see Table 8).
DISCRETE OUTPUTS TRUTH TABLE*
Set Point Reached? IAW™ Fault? SW1 & SW2 (as congured) IAW™ Output
No No Normal State Closed
No Yes Tripped State Fail Safe Open
Yes No Tripped State Closed
Yes Yes Tripped State Fail Safe Open
Electronic Switch Voltage Levels
Signal Name Location Voltage Open (power supply
dependent)
Voltage Closed
SW1 TB2 (no polarity) 0 – 280 VAC or VDC 0 Volts (Nominal)
SW2 TB2 (no polarity) 0 – 280 VAC or VDC 0 Volts (Nominal)
IAW®OUTPUT TB3-2 (+) & TB3-1 (-) 0 – 30 VDC 0 VDC (Nominal)
*Model 1XTXSW Only
LOST PASSWORDS
Contact UE Inside Sales at [phone] or go online at www.UEonline.com/UUC to obtain a unique unlock code. The Kanban number from
the product nameplate is required (see Figure 16).
Table 7
Table 8
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PROPERTY OF UNITED ELECTRIC CONTROLS.
UNAUTHORIZED USE IS STRICTLY PROHIBITED.
TOLERANCES ON FRACTIONS
±1/64
±1/2° ±0.010 ±0.005
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6211-847
DESCRIPTION DATE DRWN APPD
UNLESS OTHERWISE SPECIFIED
DIMENSIONS ARE IN INCHES
REV.
ECN#
Figure 16
Kanban number and Date Code