CN205349684U - Air compressor machine test bench - Google Patents
Air compressor machine test bench Download PDFInfo
- Publication number
- CN205349684U CN205349684U CN201620022810.1U CN201620022810U CN205349684U CN 205349684 U CN205349684 U CN 205349684U CN 201620022810 U CN201620022810 U CN 201620022810U CN 205349684 U CN205349684 U CN 205349684U
- Authority
- CN
- China
- Prior art keywords
- air compressor
- threshold value
- temperature
- comparing section
- temperature sensor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The utility model discloses an air compressor machine test bench has solved when carrying out the exhaust temperature experiment, dangerous problem then can appear if the temperature lasts the rising, and its technical scheme main points are that when temperature detection of signal was greater than first grade threshold value, first order display element worked, when temperature detection of signal was greater than second grade threshold value, first order display element and second level display element worked jointly, when temperature detection of signal is greater than tertiary gradient threshold value, the control unit control air compressor machine is closed, the utility model discloses an air compressor machine test bench, first grade threshold value corresponds for safe state, and second grade threshold value corresponds for the warning state, and tertiary gradient threshold value be the upper limit promptly, is in the work of the next display element of normal condition when the temperature, and under if the temperature is in the higher circumstances, then the work of the 2nd display element to be in order reminding testing personnel to take care, if when the temperature is in the upper limit, then the the control unit direct control air compressor machine is worked, avoids leading to the fact danger to testing personnel.
Description
Technical field
This utility model relates to testing equipment, particularly to Air Compressor Test platform.
Background technology
Testing stand is applicable to various product and carries out correlation test, and testing stand also includes a variety of, has for mechanical parameter detection, also have for electric parameter detection, by testing stand, product is detected, to obtain the parameter of correspondence, in order to product is improved with perfect by the later stage.
Air Compressor Test platform be mainly used in screw pump air compressor test, including performance test, capacity detection, delivery temperature measure and electric current, voltage, the measurement of power, overload test, leak-test, etc. test event.
When Air Compressor Test platform is exhausted temperature survey, if continuous high temperature occurs, then represent that this air compressor machine has certain problem, but in process of the test, testing crew will not stare at before staying in Air Compressor Test platform all the time, by can connection complete relief its from dynamic test record, testing crew then removes other things busy, in the process, if air compressor machine is long-time high, then can cause danger thus causing damage to testing crew, so current used Air Compressor Test platform has certain room for improvement.
Utility model content
The purpose of this utility model is to provide a kind of Air Compressor Test platform, multistage detection can show its delivery temperature, and can be closed by air compressor machine when reaching a ceiling temperature, it is to avoid cause danger.
Above-mentioned technical purpose of the present utility model has the technical scheme that
A kind of Air Compressor Test platform, including the temperature sensor of the delivery temperature for detecting air compressor machine, also includes the multi-levels display circuit and the cut-off protection circuit that are all coupled to the temperature detection signal that temperature sensor exports；
Described multi-levels display circuit includes first order display unit and second level display unit, and described first order display unit is correspondingly arranged on the first estate threshold value, described second level display unit is correspondingly arranged on the second grade threshold, and second grade threshold more than the first estate threshold value, when temperature detection signal is more than the first estate threshold value, described first order display unit works；When temperature detection signal is more than the second grade threshold, described first order display unit and second level display unit cooperation；
Described cut-off protection circuit includes for controlling the control unit that air compressor machine opens and closes, and described control unit is provided with the tertiary gradient threshold value more than the second grade threshold, and when temperature detection signal is more than tertiary gradient threshold value, described control unit controls air compressor machine and closes.
Adopt such scheme, the first estate threshold value corresponds to safe condition, second grade threshold corresponds to alert status, tertiary gradient threshold value is the upper limit, when temperature be under normal condition then first display unit work, if temperature is in higher, then the second display unit works to remind testing crew to should be noted that safety, if temperature is in the upper limit, then control unit directly controls air compressor machine work, it is to avoid testing crew is caused danger.
As preferably, described temperature sensor includes primary temperature sensor and backup temperature sensor, is mutually coupled with multi-levels display circuit, cut-off protection circuit respectively by single-pole double-throw switch (SPDT) after described primary temperature sensor is parallel with one another with backup temperature sensor.
Adopt such scheme, primary temperature sensor and backup temperature sensor can switch over mutually, when primary temperature sensor damages, then can switch over to backup temperature sensor either directly through controlling single-pole double-throw switch (SPDT), avoid in trying process, occur abnormal and suspect temperature sensor to break down and cause, it is simple to adopt backup temperature sensor to be verified, improve the convenience of test.
As preferably, described first order display unit includes the first display part and for arranging the first comparing section of the first estate threshold value；
Described first comparing section is coupled to temperature sensor to receive temperature detection signal, and exports the first comparison signal；Described first display part is coupled to the first comparing section to receive the first comparison signal, and in response to the first comparison signal to indicate delivery temperature.
Adopt such scheme, what first order display unit was corresponding is normal grade, when temperature detection signal compares mutually with the first estate threshold value, the second grade threshold, temperature detection signal lower than the first estate threshold value or higher than the first estate threshold value and lower than the second grade threshold, then mark is in normal condition, will not cause danger.
As preferably, described second level display unit includes the second display part and for arranging the second comparing section of the second grade threshold；
Described second comparing section is coupled to temperature sensor to receive temperature detection signal, and exports the second comparison signal；Described second display part is coupled to the second comparing section to receive the second comparison signal, and in response to the second comparison signal to indicate delivery temperature.
Adopt such scheme, what second level display unit was corresponding is dangerous grade, when temperature detection signal compares mutually with the second grade threshold, tertiary gradient threshold value, temperature detection signal is higher than the second grade threshold lower than tertiary gradient threshold value, then indicate in the hole, need testing crew to be adjusted or pay close attention to, it is to avoid dangerous generation.
As preferably, described second display part passes through light flash to realize instruction delivery temperature.
Adopt such scheme, can be more prone to cause the attention of testing crew by light flash, reduce the risk that testing crew does not note.
As preferably, described control unit includes drive division and for arranging the 3rd comparing section of tertiary gradient threshold value；
Described 3rd comparing section is coupled to temperature sensor to receive temperature detection signal, and exports the 3rd comparison signal；Described drive division is coupled to the 3rd comparing section to receive the 3rd comparison signal, and in response to the 3rd comparison signal to drive air compressor machine to close.
Adopt such scheme, what third level display unit was corresponding is dangerous grade, when temperature detection signal compares mutually with tertiary gradient threshold value, temperature detection signal is higher than tertiary gradient threshold value, then mark is in the state of being in extreme danger, now air compressor machine is easy to go wrong, so being closed by air compressor machine either directly through control unit, it is to avoid cause bigger personal damage or property loss.
As preferably, also including the regulon for regulating the first estate threshold value, the second grade threshold and tertiary gradient threshold value.
Adopt such scheme, the threshold value of Three Estate can be adjusted by regulon, more convenient in use procedure, adapt to all kinds of different air compressor machine, improve utilization rate.
As preferably, also including wireless communication module, described wireless communication module couples control unit and is controlled by control unit.
Adopt such scheme, terminal can be transmitted information to by wireless communication module, to avoid testing crew not miss the situation of this warning on testing stand side, improve the safety that testing stand uses.
In sum, this utility model has the advantages that
1, when temperature be under normal condition then first display unit work, if temperature is in higher, then second display unit work to remind testing crew to should be noted that safety, if temperature is in the upper limit, then control unit directly control air compressor machine work.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present embodiment；
Fig. 2 is the circuit theory diagrams of multi-levels display circuit and cut-off protection circuit.
In figure: 1, multi-levels display circuit；11, first order display unit；111, the first display part；112, the first comparing section；12, second level display unit；121, the second display part；122, the second comparing section；2, cut-off protection circuit；21, control unit；211, drive division；212, the 3rd comparing section；3, regulon；4, air accumulator.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described in further detail.
This specific embodiment is only to explanation of the present utility model; it is not to restriction of the present utility model; the present embodiment can be made the amendment not having creative contribution as required by those skilled in the art after reading this specification, but as long as being affected by the protection of Patent Law in right of the present utility model.
The disclosed a kind of Air Compressor Test platform of the present embodiment, this equipment be mainly used in screw pump air compressor test, including performance test, capacity detection, delivery temperature measure and electric current, voltage, the measurement of power, overload test, leak-test, etc. test event.Testing stand adopts variable-frequency control technique and Programmable control technology, uses Novel intelligent digital displaying meter, has floor space little, easy to operate, the advantages such as accuracy of detection is high, safe and reliable.Tank method is filled in capacity test employing, and the dischargeable capacity of air accumulator 4 meets the requirement about specification.Possess the defencive function to tested air compressor machine, specifically include that the defencive function that pressure at expulsion is high, delivery temperature is high.The test of all parameters adopts industrial computer and numeral instrument monitoring and can will survey report output, printing.Defencive function to self is set, specifically includes that short-circuit protection, overload protection, air reservoir and pipeline overvoltage protection etc..Air Compressor Test platform is mainly made up of digital display electric current, voltage, electric power instrument, converter, Programmable Logic Controller (PLC), industrial computer, air accumulator 4, temperature sensor, differential pressure pickup, flow transducer, protection electrical equipment etc..Converter is the rotating speed that power frequency supply is transformed to the electric energy control device control compression electromechanics of another frequency by the on-off action utilizing power semiconductor device；Air accumulator 4 is 1.6MPa for storing the container standard pressure of compression gas；Electric current, voltage, electrical power are for the real-time measurement to compressor and show；Temperature sensor, differential pressure pickup, flow transducer are respectively used to inflate temperature, inlet and outlet pressure, the stream of inflating of compressor are measured in real time, and number is fed back to PLC process.Overall employing PC+PLC control model.In such an embodiment, object is controlled and monitors by PLC, and PLC is controlled and monitors by field computer and remote computer, its advantage is except can realizing closely detection control, also can remotely operate, remote adjustment, time saving and energy saving, efficient and convenient, well realize computer automation.Basic specification and parameter: power supply 3PAC380V；Power 22KW；Output voltage 0-440V；Output frequency 50-60Hz；Test pressure limit 0-1.2MPa；Range of measuring temp 0-200 DEG C.
Embodiment one, Air Compressor Test platform includes the temperature sensor of the delivery temperature for detecting air compressor machine, also includes the multi-levels display circuit 1 and the cut-off protection circuit 2 that are all coupled to the temperature detection signal that temperature sensor exports；Multi-levels display circuit 1 includes first order display unit 11 and second level display unit 12, and first order display unit 11 is correspondingly arranged on the first estate threshold value, second level display unit 12 is correspondingly arranged on the second grade threshold, and second grade threshold more than the first estate threshold value, when temperature detection signal is more than the first estate threshold value, first order display unit 11 works；When temperature detection signal is more than the second grade threshold, first order display unit 11 and second level display unit 12 cooperation；Cut-off protection circuit 2 includes for controlling the control unit 21 that air compressor machine opens and closes, and control unit 21 is provided with the tertiary gradient threshold value more than the second grade threshold, and when temperature detection signal is more than tertiary gradient threshold value, control unit 21 controls air compressor machine and closes.
First order display unit 11 includes the first display part 111 and for arranging the first comparing section 112 of the first estate threshold value；First comparing section 112 is coupled to temperature sensor to receive temperature detection signal, and exports the first comparison signal；First display part 111 is coupled to the first comparing section 112 to receive the first comparison signal, and in response to the first comparison signal to indicate delivery temperature, first comparing section 112 is preferably the comparator of LM393A model, the in-phase end of the first comparing section 112 is to receive temperature detection signal, the end of oppisite phase of the first comparing section 112 is connected to default the first estate threshold value Vref1, the outfan of the first comparing section 112 exports the first comparison signal, first display part 111 includes the first display lamp LED1 and the first protective resistance R1, the anode of the first display lamp LED1 is coupled to the outfan of the first comparing section 112, its negative electrode connects ground connection after the first protective resistance R1, make when ambient temperature is higher than the first estate threshold value Vref1, first display lamp LED1 displays.
Second level display unit 12 includes the second display part 121 and for arranging the second comparing section 122 of the second grade threshold；Second comparing section 122 is coupled to temperature sensor to receive temperature detection signal, and exports the second comparison signal；Second display part 121 is coupled to the second comparing section 122 to receive the second comparison signal, and in response to the second comparison signal to indicate delivery temperature.Second comparing section 122 is preferably the comparator of LM393A model, the in-phase end of the second comparing section 122 is to receive temperature detection signal, the end of oppisite phase of the second comparing section 122 is connected to the second default grade threshold Vref2, and the outfan of the second comparing section 122 exports the second comparison signal.
Second display part 121 passes through light flash to realize instruction delivery temperature, second display part 121 includes agitator, second audion Q2 of NPN type, second display lamp LED2, the first audion Q1 and relay K M1 of NPN type, the base stage of the first audion Q1 is coupled to the outfan of the second comparing section 122 and is controlled by the second comparison signal, the colelctor electrode of the first audion Q1 connects power supply after being coupled to the coil of relay K M1, the coil two ends of relay K M1 are parallel with sustained diode 1, make the electricity in coil when power is off can pass through sustained diode 1 consume, the grounded emitter of the first audion Q1, agitator is by resistance, the agitator that electric capacity and two NAND gate are constituted, the controlled terminal of agitator connects power supply after being coupled to the normally opened contact of relay K M1, the outfan of agitator is coupled to the base stage of the second audion Q2, and control the break-make of the second audion Q2, the colelctor electrode of the second audion Q2 connects power supply after being connected to the second display lamp LED2, the grounded emitter of the second audion Q2, when the base stage of the first audion Q1 receives as high level signal, first audion Q1 conducting, and then it is electric to make the coil of relay K M1 obtain, control the normally opened contact Guan Bi of relay K M1, make to control oscillator operation, export a control signal, control signal is square wave, control the second audion Q2 and replace break-make, so that the second display lamp LED2 discontinuity is reported to the police.
Control unit 21 includes drive division 211 and for arranging the 3rd comparing section 212 of tertiary gradient threshold value；3rd comparing section 212 is coupled to temperature sensor to receive temperature detection signal, and exports the 3rd comparison signal；Drive division 211 is coupled to the 3rd comparing section 212 to receive the 3rd comparison signal, and in response to the 3rd comparison signal to drive air compressor machine to close.3rd comparing section 212 is preferably the comparator of LM393A model, the in-phase end of the 3rd comparing section 212 is to receive temperature detection signal, the end of oppisite phase of the 3rd comparing section 212 is connected to default tertiary gradient threshold value Vref3, outfan output the 3rd comparison signal of the 3rd comparing section 212.Drive division 211 includes the 3rd audion Q3 and relay K M3 of NPN type, the base stage of the 3rd audion Q3 is connected to the outfan of the 3rd comparing section 212, and the 3rd audion Q3 collector connection relay KM3 coil after connect power supply, and relay K M3 normally-closed contact connect with air compressor machine to control the keying of air compressor machine.
By the temperature detected by temperature sensor, when temperature detection signal is lower than the first estate threshold value or higher than the first estate threshold value during lower than the second grade threshold, the first comparing section 112 is made to export high level so that the first display lamp LED1 works, when temperature detection signal lower than tertiary gradient threshold value higher than the second grade threshold, then the second comparing section 122 exports high level so that the first audion Q1 works, the coil of relay K M1 obtains electric simultaneously, normally opened contact closes, control agitator work to work to export square wave, thus further such that the second diode Q2 discontinuity conducting controls the second display lamp LED2 and opens and closes, first display lamp LE1 is also at duty simultaneously, when temperature detection signal is higher than tertiary gradient threshold value, then the 3rd comparing section 212 exports high level to the 3rd audion Q3, make the 3rd audion Q3 conducting, the coil controlling relay K M3 obtains electric, normally-closed contact disconnects, control air compressor machine to close, avoid the occurrence of danger, simultaneously, in this case, first display lamp LED1 and the second display lamp LED2 cooperation.
Embodiment two, on the basis of embodiment one, Air Compressor Test platform also includes the regulon 3 for regulating the first estate threshold value, the second grade threshold and tertiary gradient threshold value.Regulon 3 is slide rheostat, is used for setting the first estate threshold value as slide rheostat RP1, is used for setting the second grade threshold as slide rheostat RP2, is used for setting tertiary gradient threshold value as slide rheostat RP3.
Embodiment three; on the basis of embodiment one or embodiment two; temperature sensor includes primary temperature sensor and backup temperature sensor, is mutually coupled with multi-levels display circuit 1, cut-off protection circuit 2 respectively by single-pole double-throw switch (SPDT) K1 after primary temperature sensor is parallel with one another with backup temperature sensor.
Embodiment four, on the basis of embodiment one or embodiment two or embodiment three, Air Compressor Test platform also includes wireless communication module, and wireless communication module couples control unit 21 and is controlled by control unit 21.Namely wireless communication module is connected with the normally opened contact of relay K M3, and wireless communication module is ZigBee module, and ZigBee is based on the low-power consumption LAN protocol of IEEE802.15.4 standard.Specifying according to international standard, ZigBee technology is the wireless communication technology of a kind of short distance, low-power consumption.This title (also known as ZigBee protocol) derives from the eight word dances of Apis, due to Apis (bee) be by circle in the air and " drone " (zig) shake wing " dancing " come with companion transmit pollen place azimuth information, say, that Apis rely on such mode constitute the communication network in colony.Be characterized in closely, low complex degree, self-organizing, low-power consumption, low data rate.It is mainly suitable for for automatically controlling and remote control field, it is possible to embed various equipment.Can directly by data cube computation to terminal by ZigBee module, terminal can be mobile phone or bracelet or other equipment, by terminal with while testing crew dangerous.
Claims (8)
1. an Air Compressor Test platform; including the temperature sensor of the delivery temperature for detecting air compressor machine, it is characterized in that: also include all being coupled to multi-levels display circuit (1) and the cut-off protection circuit (2) of the temperature detection signal that temperature sensor exports；
Described multi-levels display circuit (1) includes first order display unit (11) and second level display unit (12), and described first order display unit (11) is correspondingly arranged on the first estate threshold value, described second level display unit (12) is correspondingly arranged on the second grade threshold, and second grade threshold more than the first estate threshold value, when temperature detection signal is more than the first estate threshold value, described first order display unit (11) works；When temperature detection signal is more than the second grade threshold, described first order display unit (11) and second level display unit (12) cooperation；
Described cut-off protection circuit (2) includes for controlling the control unit (21) that air compressor machine opens and closes; described control unit (21) is provided with the tertiary gradient threshold value more than the second grade threshold; when temperature detection signal is more than tertiary gradient threshold value, described control unit (21) controls air compressor machine and closes.
2. Air Compressor Test platform according to claim 1; it is characterized in that: described temperature sensor includes primary temperature sensor and backup temperature sensor, be mutually coupled with multi-levels display circuit (1), cut-off protection circuit (2) respectively by single-pole double-throw switch (SPDT) after described primary temperature sensor is parallel with one another with backup temperature sensor.
3. Air Compressor Test platform according to claim 1, is characterized in that: described first order display unit (11) includes the first display part (111) and the first comparing section (112) for arranging the first estate threshold value；
Described first comparing section (112) is coupled to temperature sensor to receive temperature detection signal, and exports the first comparison signal；Described first display part (111) is coupled to the first comparing section (112) to receive the first comparison signal, and in response to the first comparison signal to indicate delivery temperature.
4. Air Compressor Test platform according to claim 1, is characterized in that: described second level display unit (12) includes the second display part (121) and the second comparing section (122) for arranging the second grade threshold；
Described second comparing section (122) is coupled to temperature sensor to receive temperature detection signal, and exports the second comparison signal；Described second display part (121) is coupled to the second comparing section (122) to receive the second comparison signal, and in response to the second comparison signal to indicate delivery temperature.
5. Air Compressor Test platform according to claim 4, is characterized in that: described second display part (121) by light flash with realize instruction delivery temperature.
6. Air Compressor Test platform according to claim 1, is characterized in that: described control unit (21) includes drive division (211) and the 3rd comparing section (212) for arranging tertiary gradient threshold value；
Described 3rd comparing section (212) is coupled to temperature sensor to receive temperature detection signal, and exports the 3rd comparison signal；Described drive division (211) is coupled to the 3rd comparing section (212) to receive the 3rd comparison signal, and in response to the 3rd comparison signal to drive air compressor machine to close.
7. Air Compressor Test platform according to claim 1, is characterized in that: also include the regulon (3) for regulating the first estate threshold value, the second grade threshold and tertiary gradient threshold value.
8. Air Compressor Test platform according to claim 1, is characterized in that: also include wireless communication module, and described wireless communication module couples control unit (21) and is controlled by control unit (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620022810.1U CN205349684U (en) | 2016-01-12 | 2016-01-12 | Air compressor machine test bench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620022810.1U CN205349684U (en) | 2016-01-12 | 2016-01-12 | Air compressor machine test bench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205349684U true CN205349684U (en) | 2016-06-29 |
Family
ID=56175546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620022810.1U Expired - Fee Related CN205349684U (en) | 2016-01-12 | 2016-01-12 | Air compressor machine test bench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205349684U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110874078A (en) * | 2018-08-30 | 2020-03-10 | 发那科株式会社 | Human-machine cooperation robot system |
-
2016
- 2016-01-12 CN CN201620022810.1U patent/CN205349684U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110874078A (en) * | 2018-08-30 | 2020-03-10 | 发那科株式会社 | Human-machine cooperation robot system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206804833U (en) | Intelligent battery managing device | |
| CN209311646U (en) | A kind of battery group on-line monitoring system | |
| CN207251302U (en) | A kind of IDC computer rooms power supply fast switching system | |
| CN107990938A (en) | The monitoring system of remote monitoring electric power cabinet use environment | |
| CN205349684U (en) | Air compressor machine test bench | |
| CN107144750A (en) | A kind of low-voltage platform area down Monitor Unit device and alarm method | |
| CN207799426U (en) | Monitor terminal and system | |
| CN204155435U (en) | A kind of wireless temperature acquisition system | |
| CN210775760U (en) | Transmitter and system for automatic on-line density checking relay | |
| CN210923904U (en) | Transmitter and system for on-line checking gas density relay | |
| CN207214543U (en) | A kind of refrigeration plant and its warning device | |
| CN203870120U (en) | Generator rotating speed detection controller | |
| CN206421006U (en) | Wind turbines monitoring system | |
| CN215575498U (en) | Monitoring system for aging test of chip | |
| CN205679695U (en) | A kind of monitoring system changing based on monitoring surge protector temperature thus its duty being monitored | |
| CN205243814U (en) | Air compressor machine intelligence monitoring and protection device | |
| CN205507438U (en) | Liquid nitrogen container temperature monitoring system | |
| CN208461451U (en) | A kind of operation of power networks safety guard | |
| CN206788596U (en) | Intelligent temperature and humidity Mersure Controler | |
| CN207281981U (en) | A kind of high electronic information alarm of security performance | |
| CN206757008U (en) | A kind of DC charging motor ripple monitoring device | |
| CN205845278U (en) | A kind of refrigerator experimental provision remote alarming system based on ZigBee | |
| CN206818850U (en) | A kind of apparatus for monitoring power supply | |
| CN206833207U (en) | Highway electromechanical equipment state intelligent monitoring device | |
| CN205594378U (en) | Electron product aging's monitoring device and system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160629 Termination date: 20180112 |