0.5ml to 105ml/min. Continuous dispensing Volume dispensing Constant flow rate Dose over time mode. Any 5mm O.D. tubing UART & I 2 C

Transcription

1 V.5 Revised 4//8 EZO-PMP Embedded Dosing Pump Flow rate.5ml to 5ml/min Accuracy +/- % Modes of operation Calibration Supplied tubing Tubing size Data protocol Default I 2 C address Operating voltage Pump head Data format Written by Jordan Press Designed by Noah Press Continuous dispensing Volume dispensing Constant flow rate Dose over time mode Single point 6 cm Any 5mm O.D. tubing UART & I 2 C 3 (x67) 3.3V 5V (logic) 2V 24V (motor) 2 meters ASCII This is an evolving document, check back for updates.

2 Table of contents EZO-PMP TM dimensions Power consumption Absolute max ratings Operating principle Operating modes Calibration theory Accuracy Available data protocols UART I 2 C UART mode Default state Receiving data from device Sending commands to device LED color definition UART quick command page LED control Continuous mode Single reading mode Continuous dispensing Volume dispensing Dose over time Constant flow rate Pause dispensing Stop dispensing Total volume dispensed Calibration Enable/disable parameters Pump voltage Naming device Device information codes Reading device status Sleep mode/low power Change baud rate Protocol lock Factory reset Change to I 2 C mode Manual switching to I 2 C I 2 C mode Sending commands Requesting data codes LED color definition I 2 C quick command page LED control Single report mode Continuous dispensing Volume dispensing Dose over time Constant flow rate Pause dispensing Stop dispensing Total volume dispensed Calibration Enable/disable parameters Pump voltage Device information Reading device status Sleep mode/low power Protocol lock I 2 C address change Factory reset Change to UART mode Manual switching to UART Mounting the EZO-PMP TM Datasheet change log Warranty

3 EZO-PMP TM dimensions 26mm 85.75mm 27.5mm 3.5mm /4 3/32 Mounting screw Side.6mm.6mm 37.5mm.2.86 /2.2 # Drive #4-4 thread 54mm 48mm Inline tubing connectors 8mm 27.25mm 3.3mm Front Back Power consumption 2.8mm 4.8mm Absolute max ratings LED MAX STANDBY SLEEP Parameter MIN TYP MAX 5V 3.3V ON 3.7 ma 3.4 ma OFF 3. ma 2.8 ma ON 2.5 ma 2.4 ma.45 ma.3 ma Storage temperature (EZO-PMP ) Operational temperature (EZO-PMP ) -65 C 25 C -4 C 25 C 85 C OFF 2.3 ma 2.2 ma VCC 3.3V 5V 5.5V Motor 2V = ~4mA 24V = ~2mA Motor.8V 2V 24V 3 Copyright Atlas Scientific LLC Max input / output pressure 8 kpa r.3

4 Operating principle Self-priming Run dry A B C Max input vacuum -8 kpa Max output pressure 8 kpa Operating modes The EZO-PMP can operate in four different modes. Continuous dispensing Run the pump continuously 5 ml/min (with supplied tubing) Volume dispensing Pump a specific volume (Smallest possible volume is.5 ml) Constant flow rate Pump a specific volume per minute Dose over time mode Pump a specific volume over a set time Volume is always in ml. 4 Copyright Atlas Scientific LLC r.2

5 This device requires two power supplies 3.3V 5.5V for the control system 2V 24V to drive the motor The Atlas Scientific EZO-PMP consists of three main components. Cassette 2 volt motor Control system The actual peristaltic pumping is done within the cassette. It has been designed to be easily detached from the motor and disassembled. The 2 volt motor and control system have been soldered together. Both components are designed to operate as one single unit. The control system has three main components Keyed data and power connector 2 24 volt power input Status indicator LED Data and power cable pinout White Green Black Red Blue RX/SCL TX/SDA GND VCC INT 5 Copyright Atlas Scientific LLC r.2

6 Pump speed vs. voltage There is no change in pump speed at different voltages. 2V 24V = 5 RPM 5 RPM Interupt pin When the pump is dispensing the interupt pin goes high D, ml Cal,9.8 INT *Done Removing cassette 5.2 G 9.8 G 9.8 G 2% % % Turn cassette counterclockwise until it stops. Pull cassette off the motor. 2% 6 Copyright Atlas Scientific LLC r.2

7 Removing tube assembly The inner workings of the cassette are fragile and must be dismantled by hand. Using tools can damage or break the cassette. Tube holder Click 2 3 Tube Gently push down the tube holder until it clicks, then remove. Rotor Inline tubing connector Turn the cassette around, and carefully remove rotor and pump tube. Installing new tube assembly 75mm Measure 75mm of pump tubing, and mark both ends with a soft-tip pen or marker. 2 Apply grease Apply silicone lubricating grease to the marked areas on both the tubing and cassette axle. Do not operate this device without lubrication! 75mm mark Cassette axle Atlas Scientific recommends using Super Lube silicone lubricating grease. 7 Copyright Atlas Scientific LLC r.2

8 3 Click Push the tube holder along with the greased and marked pump tube into the cassette until it clicks. 4 Cassette axle Gently pull out the pump tube, and insert the rotor into the pump tube. Align pump tube and rotor with the cassette axle. Cassette Roller Correct X Incorrect Make sure the pump tube is held between the roller and cassette. Once the tubing has been replaced, run the pump for 3 5 minutes to break in the new tubing. Remember, this pump can be run dry and does not need to pump liquid for the 3 5 minute break in period. 8 Copyright Atlas Scientific LLC r.2

9 Calibration theory Uncalibrated accuracy +/- 5% Calibrated accuracy +/- % Before calibration is attempted all the air bubbles should be removed from the tubing. This is done by running the pump while tapping the tubing. If air bubbles are not removed from the tubing they will slowly group together into larger air bubbles. Over time this will lead to accuracy issues. Not ready for calibration Ready for calibration Calibration types Volume calibration Volume over time calibration Calibration is optional. Both types of calibration are independent of each other and can be done at any time. Calibration can be done at any volume however; Atlas Scientific recommends using volumes above 5ml. Equipment needed for calibration G gram of water = ml grams of water = 23.56ml An accurate graduated cylinder of at least ml. Or An accurate scale with a resolution of at least. grams 9 Copyright Atlas Scientific LLC r.2

10 Calibration procedure Calibration should be done with water and not a chemical Make sure the tubing is full of water and has no bubbles before calibrating.. Instruct the pump to dispense a volume of water. 2. Measure the dispensed amount to determine how much water was actually dispensed. 3. Calibrate the pump by sending it the volume of liquid you have measured. Calibrate the pump by dispensing ml D, ml Cal, G 9.8 G 9.8 G. Instruct the pump to dispense ml into a graduated cylinder or beaker on a scale. 2. Measure the amount of liquid that was actually dispensed. 3. Inform the pump how much liquid was actually dispensed. 4. Calibration is now complete. Once the pump has been calibrated it will accurately dispense any volume of liquid. It has not been calibrated specifically to the volume used during the calibration procedure ( ml). It has now been calibrated to all volumes. Use the same procedure to perform a volume over time calibration. Copyright Atlas Scientific LLC r.2

11 Accuracy Uncalibrated accuracy +/- 5% Calibrated accuracy +/- % Volume dispensing mode calibrated at ml 2% Percent error % % Dose in ml Dose over time mode calibrated at ml over 9 seconds 2% Percent error % %.87%.8%.67%.67%.5%.5%.43%.3%.33%.% Time in minutes Pump head Pump head refers to the maximum vertical height a pump can dispense. The EZO-PMP has a pump head of 2 meters (6.5'). Copyright Atlas Scientific LLC

12 Available data protocols Default Unavailable data protocols SPI Analog RS-485 Mod Bus 4 2mA 2 Copyright Atlas Scientific LLC

13 UART mode Settings that are retained if power is cut Baud rate Calibration Continuous mode Device name Enable/disable parameters Enable/disable response codes Hardware switch to I 2 C mode LED control Protocol lock Software switch to I 2 C mode Settings that are NOT retained if power is cut Find Sleep mode.2

14 UART mode 8 data bits stop bit Baud no parity no flow control 3,2 2,4 9,6 default 9,2 38,4 57,6 5,2 RX TX RX Data in TX RX RX TX TX Data out Vcc V 3.3V 5.5V VCC V RX TX CPU Data format Output volume Units ml Encoding ASCII Format string Terminator carriage return Data type floating point imal places 3 Smallest string 3 characters Largest string 39 characters 4 Copyright Atlas Scientific LLC

15 Default state Mode Baud Readings Speed LED UART 9,6 continuous reading per second on, ms Green Standby Cyan Taking reading Transmitting 5 Copyright Atlas Scientific LLC

16 Receiving data from device 2 parts ASCII data string Command Carriage return Terminator 9,6 baud (default) RX TX RX TX TX CPU TX RX RX Sender Receiver 43 Advanced ASCII: 4 3 Hex: D : Copyright Atlas Scientific LLC

17 Sending commands to device 2 parts Command (not case sensitive) ASCII data string Carriage return Terminator RX TX RX TX TX CPU TX RX RX Receiver Sender Sleep Advanced ASCII: S l e e p Hex: 53 6C D : Copyright Atlas Scientific LLC

18 LED color definition Green UART standby Cyan Taking reading Purple Changing baud rate Red Command not understood White Find 5V LED ON +2.5 ma 3.3V + ma 8 Copyright Atlas Scientific LLC

19 UART mode command quick reference All commands are ASCII strings or single ASCII characters. Command Function Default state Baud change baud rate pg. 38 9,6 C enable/disable continuous mode pg. 2 Cal performs calibration pg. 3 D dispense modes pg Factory enable factory reset pg. 4 i device information pg. 34 I2C change to I 2 C mode pg. 4 L enable/disable LED pg. 2 Name set/show name of device pg. 33 O enable/disable parameters pg. 3 P pause dispensing pg. 27 Plock enable/disable protocol lock pg. 39 Pv check pump voltage pg. 32 R returns a single reading pg. 22 Sleep enter sleep mode/low power pg. 37 Status retrieve status information pg. 36 Tv total volume dispensed pg. 29 X stop dispensing pg. 28 *OK enable/disable response codes pg. 35 enabled n/a n/a n/a n/a not set enabled not set all enabled n/a disabled n/a n/a n/a enable n/a n/a enable

20 LED control L, L, LED off L,? LED on default LED state on/off? L, *OK L, *OK L,??L, *OK or?l, L, L, 2 Copyright Atlas Scientific LLC

21 Continuous mode C,* C, continuously reports volume only when pumping C, C,? continuously reports volume once per second disable continuous reporting continuous reporting mode on/off? dispense 3ml C,*.2 3. *Done, C,.2 3. *Done,3. C, *Done,3. C,??C, or?c, or?c,* *OK 2 Copyright Atlas Scientific LLC

22 Single reading mode R returns a single value showing dispensed volume R 2.5 *OK 5. *OK (If issued half way through dispensing 5ml) (If issued once dispensing has stopped) 22 Copyright Atlas Scientific LLC

23 Continuous dispensing Pump on/pump off After running in continuous mode for 2 days the EZO-PMP TM will reset. D,* D,-* D,? dispense until the stop command is given dispense in reverse until the stop command is given dispense status D,* *OK pump will continuously run at ~5ml/min (with supplied tubing) D,-* *OK pump will continuously run in reverse at ~5ml/min (with supplied tubing) D,??D,*, *OK breakdown?d,*, last volume requested pump on 23 Copyright Atlas Scientific LLC

24 Volume dispensing Pump a specific volume where [ml] is any volume in millimeters >=.5 D,[ml] D,[-ml] D,? dispense [this specific volume] dispense [in reverse this specific volume] dispense status D,5 *OK 5 ml will be dispensed D,-45 *OK 45 ml will be dispensed in reverse D,??D,22.5, *OK breakdown?d,22.5, last volume dispensed pump off 24 Copyright Atlas Scientific LLC

25 Dose over time Pump a fixed volume over a fixed time D,[ml],[min] Dispense [this volume], [over this many minutes] D,85, *OK Dispense 85ml over minutes 25 Copyright Atlas Scientific LLC

26 Constant flow rate Maintain a constant flow rate After running in continuous mode for 2 days the EZO-PMP TM will reset. DC,[ml/min],[min or *] DC,? [maintain this rate],[for this much time] reports maximum possible flow rate [ml/min] = a single number (int or float) representing the desired flow rate [min or *] = the number of minutes to run or (*) indefinitely A negative value for ml/min = reverse DC,25,4 *OK Dispense 25ml per minute for 4 minutes DC,??MAXRATE,58.5 *OK The maximum flow rate is determined after calibration. If the flowrate entered is too fast the EZO-PMP TM will send an error. *TOOFAST *ER evaporation rate = ml/min flow rate = ml/min 26 Copyright Atlas Scientific LLC

27 Pause dispensing Issue the command again to resume dispensing P P,? pauses the pump during dispensing pause status P *OK P,??P, paused *OK or?p, unpaused P P dispensing paused dispensing 27 Copyright Atlas Scientific LLC

28 Stop dispensing X stop dispensing X *DONE,v v = volume dispensed X dispensing *DONE,.5 Stopped 28 Copyright Atlas Scientific LLC

29 Total volume dispensed TV,? ATV,? Clear shows total volume dispensed absolute value of the total volume dispensed clears the total dispensed volume TV,??total,434.5 ATV,??total,623. Clear *OK total now. 29 Copyright Atlas Scientific LLC

30 Calibration Calibrate to the actual volume dispensed. Cal,v Cal,clear Cal,? v = corrected volume delete all calibration data device calibrated? This command is used for both, single dose and dose over time calibrations. Cal,24. *OK Cal,clear *OK Cal,??Cal, or?cal,2 or fixed volume?cal,3 both *OK volume/time or?cal, uncalibrated 3 Copyright Atlas Scientific LLC

31 Enable/disable parameters from output string O, [parameter],[,] O,? enable or disable output parameter enabled parameter? O,V, *OK enable volume being pumped O,TV, *OK disable total volume pumped O,ATV, *OK enable absolute volume pumped O,??,O,V,TV,ATV if all three are enabled 3 Copyright Atlas Scientific LLC

32 Pump voltage PV,? check pump voltage PV,??PV,3.86 *OK breakdown?pv, 3.86 Pump input voltage 32 Copyright Atlas Scientific LLC

33 Naming device Name,n Name,? set name show name n = Up to 6 ASCII characters Name,zzt *OK Name,??Name,zzt *OK Name,zzt Name,? *OK Name,zzt *OK 33 Copyright Atlas Scientific LLC

34 Device information i device information i?i,pmp,. *OK breakdown?i, PMP,. Device Firmware 34 Copyright Atlas Scientific LLC

35 codes *OK, *OK, *OK,? enable response disable response response on/off? default R 43 *OK *OK, no response, *OK disabled R 43 *OK disabled *OK,??*OK, or?*ok, Other response codes *ER *OV *UV *RS *RE *SL *WA *DONE *MINVOL *TOOFAST unknown command over volt (VCC>=5.5V) under volt (VCC<=3.V) reset boot up complete, ready entering sleep mode wake up dispensing complete dispense amount too low ml/min set to fast These response codes cannot be disabled 35 Copyright Atlas Scientific LLC

36 Reading device status Status voltage at Vcc pin and reason for last restart Status?Status,P,5.38 *OK breakdown?status, P, 5.38 Reason for restart Voltage at Vcc Restart codes P S B W U powered off software reset brown out watchdog unknown 36 Copyright Atlas Scientific LLC

37 Sleep mode/low power Send any character or command to awaken device. Sleep enter sleep mode/low power Sleep *SL Any command *WA wakes up device 5V STANDBY SLEEP 3.4 ma.45 ma 3.3V 2.4 ma.3 ma Sleep Standby 3.4 ma Sleep.45 ma 37 Copyright Atlas Scientific LLC

38 Change baud rate Baud,n change baud rate Baud,384 *OK Baud,??Baud,384 *OK n = default Baud,384 (reboot) Green Purple Green Standby Changing baud rate *OK Standby UART standby 38 Copyright Atlas Scientific LLC

39 Protocol lock Locks device to UART mode. Plock, Plock, Plock,? enable Plock disable Plock Plock on/off? default Plock, *OK Plock, *OK Plock,??Plock, or?plock, Plock, I2C, TX INT Green *OK Red cannot change to I 2 C *ER cannot change to I 2 C 39 Copyright Atlas Scientific LLC

40 Factory reset Clears calibration LED on "*OK" enabled Factory enable factory reset Factory *OK Factory (reboot) Green *OK Green *RS *RE Baud rate will not change 4 Copyright Atlas Scientific LLC

41 Change to I 2 C mode Default I 2 C address 3 (x67) I2C,n sets I 2 C address and reboots into I 2 C mode n = any number 27 I2C, *OK (reboot in I 2 C mode) Wrong example I2C,39 n > 27 *ER I2C, (reboot) Green Green *OK Cyan Blue now in I 2 C mode 4 Copyright Atlas Scientific LLC r.2

42 Manual switching to I 2 C Make sure Plock is set to Disconnect ground (power off) Disconnect TX and RX Connect TX to INT Confirm RX is disconnected Connect ground (power on) Wait for LED to change from Green to Blue Disconnect ground (power off) Reconnect all data and power Manually switching to I 2 C will set the I 2 C address to 3 (x67) Short Wrong Disconnect RX line Short RX TX INT 42 Copyright Atlas Scientific LLC

43 I 2 C mode The I 2 C protocol is considerably more complex than the UART (RS 232) protocol. Atlas Scientific assumes the embedded systems engineer understands this protocol. To set your EZO-PMP TM into I 2 C mode click here Settings that are retained if power is cut Calibration Change I 2 C address Enable/disable parameters Hardware switch to UART mode LED control Protocol lock Software switch to UART mode Settings that are NOT retained if power is cut Find Sleep mode r.2

44 I 2 C mode I 2 C address (x x7f) 3 (x67) default Vcc 3.3V 5.5V Clock speed SDA 4 khz SCL SDA SCL SCL SCL SDA SDA VCC SCL SDA V V CPU Data format Reading Units Encoding Format volume ml ASCII string Data type floating point imal places 3 Smallest string 3 characters Largest string 39 characters 44 Copyright Atlas Scientific LLC

45 Sending commands to device 5 parts Start I 2 C address Write Command (not case sensitive) Stop 3 (x67) ASCII command string Start 3 (x67) Write Sleep Stop I 2 C address Command SDA SDA SCL SDA SDA SCL CPU SCL SCL Advanced Address bits The entire command as ASCII with all arguments SDA SCL A6 A5 A4 A3 A2 A A W ACK First letter of command ACK Last letter of command ACK Start W = low Stop 45 Copyright Atlas Scientific LLC

46 Requesting data from device 7 parts Start I 2 C address Read code Data string Stop 3 (x67) byte "43" Terminator ( ) 43 SDA SDA SCL SDA SDA SCL CPU SCL SCL Advanced Address bits N bytes of data All bytes after data are R = High SDA SCL A6 A R ACK code ACK Data ACK Data N ACK ACK Start NACK Stop ASCII = Copyright Atlas Scientific LLC

47 codes After a command has been issued, a byte response code can be read in order to confirm that the command was processed successfully. Reading back the response code is completely optional, and is not required for normal operation. Send command CPU Processing delay Receiving data I2C_start; I2C_address; I2C_write(EZO_command); I2C_stop; delay(3); I2C_start; I2C_address; Char[ ] = I2C_read; I2C_stop; Processing delay If there is no processing delay or the processing delay is too short, the response code will always be 254. codes Single byte, not string no data to send still processing, not ready syntax error successful request 47 Copyright Atlas Scientific LLC r.2

48 LED color definition Blue I 2 C standby Green Taking reading Purple Changing I 2 C ID# Red Command not understood White Find 5V LED ON +2.5 ma 3.3V + ma 48 Copyright Atlas Scientific LLC

49 I 2 C mode command quick reference All commands are ASCII strings or single ASCII characters. Command Baud Cal D Factory i I2C L Function switch back to UART mode performs calibration dispense modes enable factory reset device information change I 2 C address enable/disable LED pg. 68 pg. 59 pg pg. 67 pg. 62 pg. 66 pg. 5 O enable/disable parameters pg. 6 P Plock Pv R Sleep Status Tv X enable/disable protocol lock enable/disable protocol lock check pump voltage returns a single reading enter sleep mode/low power retrieve status information total volume dispensed stop dispensing pg. 56 pg. 65 pg. 6 pg. 5 pg. 64 pg. 63 pg. 58 pg Copyright Atlas Scientific LLC

50 LED control L, LED on default L, LED off L,? LED state on/off? 3ms processing delay L, L, L,??L, ASCII or?l, ASCII L, L, 5 Copyright Atlas Scientific LLC

51 Single report mode 3ms processing delay R returns a single value showing dispensed volume R 2.5 ASCII (If issued half way through dispensing 5ml) 5. ASCII (If issued once dispensing has stopped) Green Taking reading Wait 6ms Transmitting Blue Standby 5 Copyright Atlas Scientific LLC

52 Continuous dispensing Pump on/pump off 3ms processing delay After running in continuous mode for 2 days the EZO-PMP TM will reset. D,* D,-* D,? dispense until the stop command is given dispense in reverse until the stop command is given dispense status D,* pump will continuously run at ~5ml/min (with supplied tubing) D,-* pump will continuously run in reverse at ~5ml/min (with supplied tubing) D,??D,., ASCII breakdown?d,*, last volume requested pump on 52 Copyright Atlas Scientific LLC

53 Volume dispensing Pump a specific volume 3ms processing delay where [ml] is any volume in millimeters >=.5 D,[ml] D,[-ml] D,? dispense [this specific volume] dispense [in reverse this specific volume] dispense status D,5 5 ml will be dispensed D, ml will be dispensed in reverse D,??D,22.5, ASCII breakdown?d,22.5, last volume dispensed pump off 53 Copyright Atlas Scientific LLC

54 Dose over time Pump a fixed volume over a fixed time 3ms processing delay D,[ml],[min] Dispense [this volume], [over this many minutes] D,85, Dispense 85ml over mins 54 Copyright Atlas Scientific LLC

55 Constant flow rate Maintain a constant flow rate 3ms processing delay After running in continuous mode for 2 days the EZO-PMP TM will reset. DC,[ml/min], [min or *] DC,? [maintain this rate], [for this much time] reports maximum possible flow rate [ml/min] = a single number (int or float) representing the desired flow rate [min or *] = the number of minutes to run or (*) indefinitely A negative value for ml/min = reverse DC,25,4 Dispense 25ml per minute for 4 minutes DC,??maxrate,58.5 ASCII The maximum flow rate is determined after calibration. If the flowrate entered is too fast the EZO-PMP TM will send an error. *TOOFAST *ER evaporation rate = ml/min flow rate = ml/min 55 Copyright Atlas Scientific LLC

56 Pause dispensing 3ms processing delay Issue the command again to resume dispensing P P,? pauses the pump during dispensing pause status P P,??P, ASCII paused or?p, ASCII unpaused P P dispensing paused dispensing 56 Copyright Atlas Scientific LLC

57 Stop dispensing 3ms processing delay X stop dispensing X *DONE,v ASCII v = volume dispensed X dispensing *DONE,.5 Stopped 57 Copyright Atlas Scientific LLC

58 Total volume dispensed 3ms processing delay TV,? shows total volume dispensed ATV,? absolute value of the total volume dispensed Clear clears the total dispensed volume TV,??total,623. ASCII ATV,??total,434.5 ASCII clear total now. 58 Copyright Atlas Scientific LLC

59 Calibration 3ms processing delay Calibrate to the actual volume dispensed. Cal,v Cal,clear Cal,? v = corrected volume delete calibration data device calibrated? Cal,24. Cal,clear Cal,??Cal, ASCII or?cal,2 ASCII fixed volume volume/time?cal,3 ASCII or?cal, ASCII both uncalibrated 59 Copyright Atlas Scientific LLC

60 Enable/disable parameters from output string 3ms processing delay O, [parameter],[,] enable or disable output parameter O,? enabled parameter? O,V, enable volume being pumped O,TV, disable total volume pumped O,ATV, enable absolute volume pumped O,??,O,V,TV,ATV ASCII if all three are enabled 6 Copyright Atlas Scientific LLC

61 Pump voltage 3ms processing delay PV,? check pump voltage PV,??PV,3.86 ASCII breakdown?pv, 3.86 Pump input voltage 6 Copyright Atlas Scientific LLC

62 Device information 3ms processing delay i device information i?i,pmp,. ASCII breakdown?i, PMP, Device. Firmware 62 Copyright Atlas Scientific LLC

63 Reading device status 3ms processing delay Status voltage at Vcc pin and reason for last restart Status?Status,P,5.38 ASCII breakdown?status, P, 5.38 Reason for restart Voltage at Vcc Restart codes P S B W U powered off software reset brown out watchdog unknown 63 Copyright Atlas Scientific LLC

64 Sleep mode/low power Sleep enter sleep mode/low power Send any character or command to awaken device. Sleep no response Do not read status byte after issuing sleep command. Any command wakes up device 5V STANDBY SLEEP 3.4 ma.45 ma 3.3V 2.4 ma.3 ma Sleep Standby Sleep 64 Copyright Atlas Scientific LLC

65 Protocol lock 3ms processing delay Plock, Plock, enable Plock disable Plock default Locks device to I 2 C mode. Plock,? Plock on/off? Plock, Plock, Plock,??Plock, ASCII Plock, Baud, 96 TX INT Blue cannot change to UART Red cannot change to UART 65 Copyright Atlas Scientific LLC

66 I 2 C address change 3ms processing delay I2C,n sets I 2 C address and reboots into I 2 C mode I2C, device reboot Warning! Changing the I 2 C address will prevent communication between the circuit and the CPU, until the CPU is updated with the new I 2 C address. n = any number 27 Default I 2 C address is 3 (x67). I2C, (reboot) 66 Copyright Atlas Scientific LLC r.2

67 Factory reset Factory reset will not take the device out of I 2 C mode. Factory enable factory reset I 2 C address will not change Factory device reboot Clears calibration LED on codes enabled Factory (reboot) 67 Copyright Atlas Scientific LLC

68 Change to UART mode Baud,n switch from I 2 C to UART Baud,96 reboot in UART mode n = Baud,96 (reboot) Changing to UART mode Blue I 2 C standby Green Taking reading 68 Copyright Atlas Scientific LLC

69 Manual switching to UART Make sure Plock is set to Disconnect ground (power off) Disconnect TX and RX Connect TX to INT Confirm RX is disconnected Connect ground (power on) Wait for LED to change from Blue to Green Disconnect ground (power off) Reconnect all data and power Short Wrong Disconnect RX line Short RX RX INT 69 Copyright Atlas Scientific LLC

70 Mounting the EZO-PMP TM There are a many different ways to mount the EZO-PMP Embedded Dosing Pump. If you have a 3D printer you can use the dosing pump stand we created, by clicking here. The dosing pump stand has been measured to perfectly fit the EZO-PMP and even has screw holes in place for you to help mount the dosing pump to the stand. Feel free to modify this stand design as needed. However, if you would like to mount the EZO-PMP Embedded Dosing Pump into other materials, you will need the following tools: OR Stop here /4 Hole Saw 3/8 Step Bit /8 Drill Bit Either are fine to make the larger hole. Perfect for screw holes. 7 Copyright Atlas Scientific LLC

71 Datasheet change log Datasheet V.5 Added max input / output pressure info to pg 3 and pg 4. Datasheet V.4 Revised definition of response codes on pg 47. Datasheet V.3 Revised art and added pump head information on pg. Datasheet V.2 Revised Plock pages to show default value. Datasheet V. Added mounting information on pg 7. Firmware updates V. Initial release (April 28, 27) 7 Copyright Atlas Scientific LLC

72 Warranty Atlas Scientific Warranties the EZO-PMP Embedded Dosing Pump to be free of defect during the debugging phase of device implementation, or 3 days after receiving the EZO- PMP Embedded Dosing Pump(which ever comes first). The debugging phase The debugging phase as defined by Atlas Scientific is the time period when the EZO- PMP Embedded Dosing Pump is inserted into a bread board, or shield. If the EZO-PMP Embedded Dosing Pump is being debugged in a bread board, the bread board must be devoid of other components. If the EZO-PMP Embedded Dosing Pump is being connected to a microcontroller, the microcontroller must be running code that has been designed to drive the EZO-PMP Embedded Dosing Pump exclusively and output the EZO-PMP Embedded Dosing Pump data as a serial string. It is important for the embedded systems engineer to keep in mind that the following activities will void the EZO-PMP Embedded Dosing Pump warranty: Soldering any part of the EZO-PMP Embedded Dosing Pump. Running any code, that does not exclusively drive the EZO-PMP Embedded Dosing Pump and output its data in a serial string. Embedding the EZO-PMP Embedded Dosing Pump into a custom made device. Removing any potting compound. 72 Copyright Atlas Scientific LLC

73 Reasoning behind this warranty Because Atlas Scientific does not sell consumer electronics; once the device has been embedded into a custom made system, Atlas Scientific cannot possibly warranty the EZO-PMP Embedded Dosing Pump, against the thousands of possible variables that may cause the EZO-PMP Embedded Dosing Pump to no longer function properly. Please keep this in mind:. All Atlas Scientific devices have been designed to be embedded into a custom made system by you, the embedded systems engineer. 2. All Atlas Scientific devices have been designed to run indefinitely without failure in the field. 3. All Atlas Scientific devices can be soldered into place, however you do so at your own risk. Atlas Scientific is simply stating that once the device is being used in your application, Atlas Scientific can no longer take responsibility for the EZO-PMP Embedded Dosing Pumps continued operation. This is because that would be equivalent to Atlas Scientific taking responsibility over the correct operation of your entire device. 73 Copyright Atlas Scientific LLC